RT 4082 - Lawn mower STIHL - Free user manual and instructions

USER MANUAL RT 4082 STIHL

Messung gemäß 2000/14/EG / S.I.

2001/1701:

Garantierer Schall

leistungspegel L_WAd 100 dB(A)

Thank you for choosing STIHL. We develop and manufacture our quality products to meet our customers' requirements. The products are designed for reliability even under extreme conditions.

STIHL also stands for premium service quality. Our specialist dealers guarantee competent advice and instruction as well as comprehensive service support.

We thank you for your confidence in us and hope you will enjoy working with your STIHL product.

Dr. Nikolas Stihl

IMPORTANT: READ BEFORE USE AND KEEP IN A SAFE PLACE.

1. Table of contents

Notes on the instruction manual 64

General 64

Instructions for reading the instruction manual 64

Machine overview 66

For your safety 67

General 67

Training - learning to use the machine 68

Transporting the ride-on mower 68

Refilling the tank - handling petrol 69

Clothing and equipment 69

Before operation 69

During operation 70

Maintenance and repairs 73

Storage for prolonged periods without operation 74

Disposal 75

Description of symbols 75

Standard equipment 76

Operations prior to initial use 76

Controls 76

Ignition lock 76

Throttle lever with choke function 76

Mowing deck switch 77

Reverse mowing safety switch 77

Driving direction selector lever 78

Steering wheel 78

Driver's seat adjustment lever 78

Drive pedal 79

Brake pedal 79

Parking brake 79

Cutting height adjustment lever 80

Grass catcher box emptying lever 80

Grass catcher box release lever 81

Gearbox freewheel lever 82

Level sensor (grass catcher box) 82

Electronics 83

Self-diagnosis when starting 83

Ride-on mower faults during operation 83

Electronics faults 83

Notes on working with the machine 83

Safety devices 84

Operating the machine 85

Filling the fuel tank 85

Starting the engine 86

Stopping the engine 86

Driving 86

Braking 87

Adjusting the cutting height 87

Mowing 87

Programming automatic disengagement of the mowing deck 88

Emptying the grass catcher box 88

Removing and attaching the grass catcher box 88

Pulling loads 89

Operating on slopes 90

Guide 90

Mowing deck 90

Removing the mowing deck 91

Installing the mowing deck 92

Maintenance 95

Maintenance schedule 95

Cleaning the machine 96

Cleaning the level sensor (grass catcher box) 96

Checking the safety devices 97

Removing the discharge chute 97

Installing the discharge chute 98

Mowing blade maintenance 98

Checking the installation position of the mowing deck 100

Tyre pressure 101

Changing the wheels 101

Opening and closing the storage compartment 102

Engine cover 103

Checking the engine oil filling level 105

Changing the engine oil 105

Fuel cock 105

Removing the steering column cover 106

Installing the steering column cover 106

Fuses 106

Disconnecting and connecting the battery 107

Removing and installing the battery 108

Charging the battery 109

Lubrication 109

Combustion engine 109

Gearbox 109

Storage 110

Extended periods of inoperation (e.g. winter break) 110

Following storage for extended periods (e.g. over winter) 110

Transport 110

Standard spare parts 110

Accessories 111

Environmental protection 111

Minimising wear and preventing damage 111

Declaration of conformity 112

EU declaration of conformity - STIHL RT 4082.1 ride-on mower 112

UKCA-Declaration of Conformity

STIHL RT 4082.1 Ride-On Mower 112

Technical specifications 113

Dimensions 114

REACH 114

Troubleshooting 114

Service schedule 117

Handover confirmation 117

Service confirmation 117

2. Notes on the instruction manual

2.1 General

This instruction manual constitutes original manufacturer's instructions in the sense of EC Directive 2006/42/EC.

STIHL is continually striving to further develop its range of products; we therefore reserve the right to make alterations to the form, technical specifications and equipment level of our standard equipment.

For this reason, the information and illustrations in this manual are subject to alterations.

This instruction manual may describe models that are not available in all countries.

This instruction manual is protected by copyright. All rights reserved, especially the right of reproduction, translation and processing using electronic systems.

2.2 Instructions for reading the instruction manual

Illustrations and texts describe specific operating steps.

All symbols which are affixed to the machine are explained in this instruction manual.

Viewing direction:

Viewing direction when "left" and "right" are used in the instruction manual: the user is standing behind the machine and is looking forwards in the direction of travel.

Section reference:

References to relevant sections and subsections for further descriptions are made using arrows. The following example shows a reference to a section: ( 4.)

Designation of text passages:

The instructions described can be identified as in the following examples.

Operating steps which require intervention on the part of the user:

• Release bolt (1) using a screwdriver, operate lever (2)...

General lists:

• Use of the product for sporting or competitive events

Texts with added significance:

Text passages with added significance are identified using the symbols described below in order to especially emphasise them in the instruction manual:

Danger

Risk of accident and severe injury to persons. A certain type of behaviour is necessary or must be avoided.

Warning

Risk of injury to persons. A certain type of behaviour prevents possible or probable injuries.

Caution

Minor injuries or material damage can be prevented by a certain type of behaviour.

Note

Information for better use of the machine and in order to avoid possible operating errors.

Illustrations with text passages:

Operating steps relating directly to the illustration can be found immediately after the illustration, with a corresponding reference to the item numbers.

Example:

Insert ignition key (1) in ignition lock (2).

Texts relating to illustrations:

Illustrations relating to use of the machine can be found in the front of this instruction manual.

The camera symbol serves to link the figures on the illustration pages with the corresponding text passages in the instruction manual.

3. Machine overview

1 Driver's seat
2 Steering wheel
3 Ignition lock
4 Driving direction selector lever (forward/reverse)
5 Cover (steering column)
6 Brake pedal
7 Drive pedal (driving speed)
8 Front wheel
9 Reverse mowing safety switch
10 Mowing deck
11 Rear wheel
12 Mowing deck switch
13 Driver's seat adjustment lever
14 Throttle lever with choke function
15 Tank display
16 Tank cap
17 Storage compartment
18 Grass catcher box handle with grass catcher box release lever
19 Grass catcher box
20 Grass catcher box emptying lever
21 Cutting height adjustment lever
22 Level sensor
23 Trailer hitch
24 Parking brake

4. For your safety

4.1 General

These safety regulations must be observed when working with the machine.

Read the entire instruction manual before using the machine for the first time. Keep the instruction manual in a safe

place for future reference.

Observe the operating and maintenance instructions contained in the separate engine instruction manual.

These safety precautions are essential for your safety, however the list is not exhaustive. Always use the machine in a reasonable and responsible manner and be aware that the user is responsible for accidents involving third parties or their property.

Only give or lend the machine, including any accessories, to persons who are familiar with this model and how to operate it. The instruction manual forms part of the machine and must always be provided to persons borrowing it.

Risk of death from suffocation!

Packaging material is not a toy - danger of suffocation! Keep packaging material away from children.

The machine must only be operated by persons who are well rested and in good physical and mental condition. If your health is impaired, you should consult your doctor to determine whether working with the machine is possible. The machine

should not be operated after the consumption of alcohol, drugs or medications which impair reactions.

Make sure that the user is physically, sensorily and mentally capable of operating the machine and working with it. If the user is physically, sensorily or mentally impaired, the machine must only be used under supervision or following instruction by a responsible person.

Make sure that the user is of legal age or being trained under supervision in a profession in accordance with national regulations.

Caution - risk of accident!

The ride-on mower is only intended for mowing lawns; its use for other purposes is not permitted.

The machine must only be equipped with original STIHL accessories. These enable further applications. Information is available from your STIHL specialist dealer.

Due to the physical danger to the user or other persons, the machine must not be used, for example, for the following applications (incomplete list):

• for cutting creepers,
• for shredding or chopping tree or hedge cuttings,
• for clearing paths (vacuuming, blowing),
• for snow clearing using the mowing deck,

• for the care of lawn roofs,
  for levelling earth mounds, e.g. mole hills.

• for transporting clippings, except in the grass catcher box intended for this purpose.

The machine is not approved for use on public roads.

The carrying of persons (especially children) and animals is not permitted.

Never climb onto the mowing deck, and in particular the gauge wheels.

Objects must not be transported on the machine, but only with the aid of a trailer approved by STIHL (accessory). The weight limits must be observed. ( 12.11)

Particular care is required during use in public green spaces, parks, sports fields, along roads and in agricultural and forestry businesses.

The machine must not be used for sporting or competitive events.

For safety reasons, any modification to the machine, except the proper installation of accessories or attachments approved by STIHL is forbidden and results in voiding of the warranty cover. Information regarding approved accessories and attachments can be obtained from your STIHL specialist dealer.

In particular, any tampering with the machine which increases the power output, engine speed or driving speed is forbidden.

The machine is equipped with electronics which must not be modified or removed.

For safety reasons, the machine software must never be modified or tampered with.

Caution! Danger to health due to vibrations. Excessive exposure to vibrations can result in damage to the

cardiovascular or nervous system,

particularly in persons with cardiovascular problems. Please consult a physician if you experience symptoms that may have been caused by vibrational loads. Symptoms of this kind principally affect the fingers, hands or wrists and include (incomplete list):

• numbness,

• p a i n ,

• muscular weakness,

• skin discolouration,

• unpleasant tingling sensation.

Hold the handlebar tightly, but not tensed, with both hands in the designated locations during operation.

Plan your working times so that more severe physical strains over a longer period are avoided.

4.2 Training - learning to use the machine

Make sure that you are familiar with the controls and operation of the machine. In particular, the user must know how the work tools and engine can be stopped quickly.

The machine must only be used by persons who have read the instruction manual and are familiar with operation of the machine. The user should seek expert and practical instruction prior to initial operation. The user must receive instruction on safe use of the machine from the vendor or another expert.

During this instruction, the user should be made aware

that the utmost care and concentration are required for working with the machine.
that a ride-on mower which is sliding down a slope cannot be brought under control by applying the brake.
The main causes for the loss of control over the ride-on mower include:
- inadequate adhesion of the wheels,
driving too fast,
- inappropriate braking,
- incorrect use (sport events, etc.),
- inadequate knowledge of the effects associated with ground conditions, especially on slopes (see section "For your safety", "Working on slopes"),
- incorrect attachment of loads and poor load distribution.

Residual risks persist even if you operate the machine according to the instructions.

4.3 Transporting the ride-on mower

On account of its own weight, the ride-on mower can cause severe crush injuries. Particular care must be taken when loading or unloading the ride-on mower onto/from a vehicle or trailer for transport purposes.

This ride-on mower must not be towed. For transporting on public roads, a suitable vehicle or a suitable trailer must be used.

During transport, secure the ride-on mower to a load floor as described in this instruction manual. Always engage the parking brake. ( 15.)

Prior to transporting or storage, disengage the drive to the mowing blade or attachments.

When transporting the machine, always observe regional legislation, especially regarding load security and the transport of objects on load floors.

Allow the machine, in particular the engine and muffler, to cool down completely after loading and before further transport. The load floor and the area around the muffler and engine must be kept free of combustible materials such as straw, leaves or dry grass residues.

4.4 Refilling the tank - handling petrol

Danger to life!

Petrol is poisonous and extremely inflammable.

Petrol must only be stored in appropriate, tested containers (canisters). Always screw on the fuel tank and canister caps properly and tightly. Defective caps must be replaced for safety reasons.

Keep petrol away from sparks, naked flames, pilot lights, heat sources and other ignition sources. Do not smoke!

Refill the tank out-of-doors and do not smoke during refilling.

Before refilling the tank, stop the engine and allow it to cool.

Refilling with petrol must be performed before the engine is started. When the engine is running or is hot, the tank cap must not be removed and the tank must not be refilled with petrol.

Open the fuel tank cap slowly and carefully. Wait for pressure compensation and only then remove the tank cap completely.

Use a suitable funnel or filling pipe for refilling the tank, so that no fuel can spill onto the engine and housing or the lawn.

Do not overfill the fuel tank!

To give the fuel room to expand, never fill the fuel tank past the lower edge of the filler neck. Observe the additional instructions in the engine instruction manual.

If petrol is spilled, the engine must only be started after the petrol-contaminated area has been cleaned. All attempts at starting must be avoided until the petrol fumes have dispersed (wipe dry).

Any spilt fuel must be wiped up immediately.

Clothing must be changed if it comes into contact with petrol.

Following each refilling of the tank, the fuel tank cap must be properly screwed on and tightened. The machine must not be operated without the original tank cap.

For safety reasons, the fuel line, fuel tank, tank cap and connections must be checked regularly for damage, ageing (brittleness), firm seating and leaks. Replace if necessary (consult a specialist dealer; STIHL recommends STIHL specialist dealers).

If it is necessary to drain the tank, this must be done out of doors.

Never use beverage bottles or similar for disposal or storage of fuels and lubricants. Persons, particularly children, could be tempted to drink out of them.

Never store the machine with petrol in the tank inside a building. The resulting petrol fumes could come into contact with naked flames or sparks and could be ignited.

Do not leave the machine and the fuel tank close to heating systems, radiant heaters, welding equipment and other sources of heat. Explosive hazard!

4.5 Clothing and equipment

Always wear sturdy footwear with high-grip soles when working. Never work barefoot

or, for example, in sandals.

Always wear long trousers and tight-fitting clothing when operating the machine.

Never wear loose clothes which may become caught on moving parts (control levers) – do not wear jewellery, ties or scarves.

Also always wear sturdy gloves and tie up and secure long hair (headscarf, cap, etc.) when performing maintenance and

cleaning work or when transporting the machine.

Wear suitable safety glasses when sharpening the mowing blade.

Noise is produced when working. Noise may damage the hearing.

Wear hearing protection.

4.6 Before operation

Make sure that only persons who are familiar with the instruction manual are permitted to use the machine.

Check the fuel system (particularly visible parts such as e.g. tank, tank cap, hose connections) before operating the machine. In the event of any leaks or damage, do not start the engine - fire hazard!

Have the machine repaired by a specialist dealer prior to operation.

Observe the local regulations regarding permitted operating times for gardening power tools with combustion engines.

Completely inspect the area on which the machine is to be used and remove any stones, sticks, wires, toys and other foreign objects that could be thrown up by the machine. Obstacles (e.g. tree stumps, roots) can be easily overlooked in long grass.

For this reason, mark all foreign objects (obstacles) that are hidden in the lawn and cannot be removed before commencing work with the machine.

All faulty, worn or damaged parts must be replaced before using the machine. Replace any illegible or damaged danger signs and warnings on the machine. Your STIHL specialist has a supply of replacement stickers and all the other spare parts.

Risk of injury!

Worn or damaged parts (e.g. blunt blades) can affect the safety of the machine and result in injury to the user.

Never use the machine with damaged safety devices or with safety devices removed.

Spring-loaded mechanisms may release stored energy. Spring-loaded mechanisms must be undamaged and working.

The screwed-on discharge port (discharge chute on mowing deck) must always be securely fastened to the mowing deck. It must not be damaged and, if necessary, it must be replaced by a technician.

The braking function must be checked before each use. ( 12.5)

Before each use, check whether:

• the cutting tool and the entire cutting unit (mowing blade, blade clutch, blade brake, retaining pin, mowing deck housing) are in good condition. Particularly check for secure fastening, damage and wear.
• the tank cap is securely attached.
  the tank and fuel-carrying parts as well as the tank cap are in good condition.
  the safety devices are in good condition and function correctly.
  the tyres (inflation pressure, damage, wear) and frame are in good condition. Check that all screw connections are securely fastened. In particular, all maintenance operations listed in the maintenance schedule under the heading "Before each use" must be carried out. ( 14.1)

If necessary, consult a specialist dealer. STIHL recommends STIHL specialist dealers.

4.7 During operation

Never work in the vicinity of other people, particularly children, or animals. Ensure that the grass is never

discharged in the direction of other people.

Do not operate the machine in the rain or during thunder storms, particularly when there is a risk of lightning strike.

Exhaust gases:

Danger to life through poisoning! In the case of nausea, headache, impaired vision (e.g. decreasing field of view) hearing disorder, dizziness, decreasing power of concentration, stop working immediately. These symptoms may be caused by excessively high exhaust gas concentrations.

The machine generates poisonous exhaust gases when the engine is running. The gases contain poisonous

carbon monoxide, a colourless and odourless gas, as well as other pollutants. The engine must never be operated in closed or poorly ventilated spaces.

The engine exhaust is released into the air in front of the left rear wheel. When working with the machine, ensure that this area is always kept clean and is never covered in order to prevent the accumulation of exhaust gasses.

Starting:

The machine must only be started from the driver's seat.

Start the machine on level ground, not on a slope.

The engine may only be started in a well ventilated working area, sufficient ventilation must be ensured, particularly in garages.

Before starting the engine, disengage the cutting tool, attachments and drive and press down the brake pedal fully.

When starting, it must be ensured that there is sufficient clearance between the feet and the cutting tool.

Never start the engine by short-circuiting the starter terminal. If the normal starter circuit is bypassed, the ride-on mower may suddenly be set in motion.

Never start the engine if the smell of petrol can be detected - Explosive hazard!

Working:

Warning - risk of injury!

Observe the working area of the mowing blade. Never put hands or feet on or underneath

rotating parts. Never touch the rotating mowing blade. Always keep away from the discharge opening. An adequate safety distance must always be maintained.

Only work during the day or with good artificial light.

When driving off the lawn or when not mowing, the mowing blade must be disengaged and the mowing deck must be set to the highest cutting position.

Objects hidden in the turf (lawn sprinkler systems, posts, water valves, foundations, electrical wires, etc.) must be avoided. Never run over any such foreign objects.

The mowing deck and discharge chute should be removed when working with additional attachments - observe instruction manual for the attachments.

Always hold the steering wheel firmly with both hands when driving.

Particular care must be taken when driving on lawns and other uneven surfaces, as

the steering wheel can be made to turn due to holes, mounds, impacts, etc. Risk of injury to hands and fingers!

If, during operation, a defect in the tank, tank cap or in the fuel-carrying components (fuel lines) is detected, the engine must be stopped immediately. A specialist dealer must then be contacted. STIHL recommends STIHL specialist dealers.

Beware of depressions (holes) in the terrain and other invisible points of danger. Obstacles can be easily overlooked in long grass.

Always drive at a reasonable speed.

Use the machine with great care when working near slopes, rubbish piles, terraces, ditches and embankments. In particular, ensure that you maintain sufficient distance to such danger areas.

Particular care must be taken at points of poor visibility, bushes, trees and other obstacles, behind which persons, especially children, or animals may be hidden.

Bring the ride-on mower to a standstill immediately and stop the mowing blade if someone moves into the area to be mown.

Always monitor the area in front of the vehicle. Beware of obstacles, in order to be able to evade them in time.

Before reversing, always check the area behind the ride-on mower and, if present, disengage the attachment. Never mow in reverse, if it is not absolutely necessary. When mowing in reverse, take particular care and before beginning to mow, thoroughly check the entire area behind the ride-on mower.

When working together in a group, always inform the others in advance of what you intend to do. Maintain a safety distance!

The vehicle speed must be reduced before each change of direction, so that the user retains control of the machine at all times and also that the ride-on mower cannot tip over.

When operating near to roads and when crossing roads, other road users must be taken into account.

Take particular care when mowing near roads, cycle paths and footpaths. Objects which are thrown up by the mower can cause severe injury and damage.

Only empty the grass catcher box from the driver's seat.

Before emptying the grass catcher box, always disengage the mowing blade and wait until it has come to a standstill.

When operating the ride-on mower with attachments, always follow the instructions and safety regulations supplied with the attachments.

Switch off the drive, stop the engine and wait until the mowing blade has come to a complete standstill, engage the parking brake and remove the ignition key:

• before remedying blockages, including those in the discharge chute,
  before checking, cleaning or working on the ride-on mower,
• if the mowing blade has hit an obstacle. Inspect the machine and the cutting tool for damage and have any necessary repairs performed before re-starting.

• if the machine begins to vibrate excessively. It must be checked immediately.

• when abandoning or when transporting the machine.
  Stop the engine and wait until the mowing blade has come to a complete standstill:
  before filling with fuel,
  before removing the grass catcher box.

Working on slopes:

Slopes are one of the major causes of accidents in which control over the ride-on mower is lost causing it to tip over, which can result in severe or even fatal injuries.

There is no "safe" slope! Driving on grassy slopes requires special concentration.

For safety reasons, the machine must not be used on slopes with an inclination of more than 10^ (17.6%) . Risk of injury! A slope inclination of 10^ corresponds to a vertical height increase of 17.6cm for a 100cm horizontal distance.

In order to ensure adequate lubrication of the engine, the information in the accompanying engine instruction manual must be additionally observed when using the machine on slopes.

If you cannot drive up the slope in reverse or if you have doubts regarding safety, you should not drive on the slope.

Starting off or stopping on a gradient must be avoided.

Do not use the machine in places (slopes, ditches, etc.) where the ride-on mower can tip over or slide. The danger of tipping over or sliding increases if the ground is soft or damp.

Slopes must be driven on in a longitudinal direction. Driving transversely increases the danger of tipping over.

Do not change speed or direction abruptly when driving on slopes. Work in this type of situation requires calm, cautious and even operation of the ride-on mower.

Changes of direction on slopes must be avoided. Only turn on slopes if this is unavoidable. If possible, drive slowly and in a large curve in the down-slope direction.

Do not mow wet grass, particularly on slopes, as wheel grip is reduced on wet grass. The ride-on mower could slide and become uncontrollable for the user.

The gearbox must never be disengaged via the gearbox freewheel when driving on slopes.

Special care must be taken when operating attachments on slopes (altered weight distribution of the machine).

If the wheels start to slip or if the vehicle becomes stuck in the up-slope direction when driving on an incline, the mowing blade or the attachment must be disengaged. Then leave the slope by driving slowly downhill in a straight line.

Never try to stabilise the ride-on mower by pressing on the ground with your foot.

The weight of the grass catcher box increases the danger of the ride-on mower tipping over, particularly when it is full.

Never empty or lift the grass catcher box on an incline.

Pulling loads:

Particular care must be taken when pulling loads, in order to prevent the risk of severe or even fatal injuries due to the ride-on mower tipping over.

Only use accessories approved by STIHL for transporting objects. Transportation on the ride-on mower, in or on the grass catcher box is not permitted.

For pulling loads, use only the trailer hitch. Loads must never be attached to the axle housing or to another point above the trailer hitch.

Please refer to the section "Pulling loads" for information on pulled and coupling loads. ( 12.11)

Exceeding the specified pulled load is dangerous and may result in damage to the machine (engine, gearbox, etc.).

When transporting on slopes, the loads must be adapted so that safe handling of the ride-on mower (e.g. braking, change of direction, starting off) is ensured at all times.

Check whether loads are properly and securely fastened. Use lashing straps for securing loads.

Ensure balanced load distribution.

Use suitable additional weights (accessories) if this is described in the instruction manual for the attachment.

Do not execute tight curves. Particular care must be taken when reversing.

Do not change speed or direction abruptly.

Stopping and parking:

The ride-on mower must only be parked on a level surface.

Make sure that the ride-on mower has come to a complete standstill before you dismount.

Beware of the cutting tool running on for several seconds before coming to a standstill.

Before leaving the driver's seat, disengage the mowing blade or

the drive to the attachments, lower the mowing deck and all attachments, set all control levers to the neutral position, engage the parking brake, stop the engine and remove the ignition key.

Keep the ignition key in a place where only authorised persons can access it.

4.8 Maintenance and repairs

Before beginning cleaning, adjustment, repair and maintenance operations, park the machine on firm, level

ground, engage the parking brake, stop the engine, allow it to cool down and remove the ignition key.

Allow the machine to cool down before working on or around the engine, exhaust manifold or muffler; this also applies in particular to all maintenance operations on the mowing deck. Temperatures of 80^ and above can be reached. Danger of burns:

Direct contact with engine oil can be dangerous. Engine oil must not be spilled. STIHL recommends leaving the task of topping up engine oil or performing engine oil changes to a STIHL specialist dealer.

Cleaning:

Following operation, the entire ride-on mower and the attachments must be cleaned. In particular, all grass residues

must be removed because the moisture these contain leads to damage in the long term.

STIHL does not recommend the use of high-pressure cleaners. ( 14.2)

Remove the mowing deck for cleaning operations. Never clean the mowing deck using water under high pressure (e.g. garden hose) or by engaging the mowing deck in puddles of water.

Never drive close to an edge or a ditch for the purpose of cleaning (e.g. the frame of) the ride-on mower.

In order to prevent fire hazards, keep the engine, cooling ribs, battery compartment, area around the fuel tank and exhaust free from grass, leaves or escaping oil (or grease).

Always clean the grass catcher box.

Maintenance operations:

Only maintenance operations described in this instruction manual may be carried out. Have all other work performed by a specialist dealer.

If you do not have the necessary expertise or auxiliary equipment, please always contact a specialist dealer.

STIHL recommends that you have maintenance operations and repairs performed exclusively by a STIHL specialist dealer.

STIHL specialist dealers regularly attend training courses and are provided with technical information.

Only use tools, accessories or attachments approved for this machine by STIHL or technically identical parts.

Otherwise, there may be a risk of accidents resulting in personal injury or

damage to the machine. If you have any questions, please consult a specialist dealer.

The characteristics of original STIHL tools, accessories and spare parts are optimally adapted to the machine and the user's requirements. Genuine STIHL spare parts can be recognised by the STIHL spare parts number, by the STIHL lettering and, if present, by the STIHL spare parts symbol. On smaller parts, only the symbol may be present.

The ride-on mower and all attachments should be inspected once annually by a specialist dealer. ( 14.1)

Always keep warning and information stickers clean and readable. Damaged or missing stickers must be replaced by new, original plates from your STIHL specialist dealer. If a component is replaced with a new component, ensure that the new component is provided with the same stickers.

For safety reasons, fuel-carrying components (fuel line, fuel cock, fuel tank, tank cap, connections, etc.) must be checked regularly for damage and leaks and replaced by a technician if necessary (STIHL recommends STIHL specialist dealers).

Before starting work on or near electrical components, the negative (-) cable must be disconnected from the battery.

The machine is equipped with numerous safety devices. These devices must not be removed or modified (bypassed, etc.) and must be checked at regular intervals. Operations on the safety devices must only be carried out by a technician. STIHL recommends STIHL specialist dealers for this purpose.

Ensure that all nuts, pins and screws, especially the blade fastening screw, are securely tightened, so that the machine is in a safe operating condition.

For safety reasons, worn or damaged parts must be replaced immediately.

Check the grass catcher unit (e.g. grass catcher box, discharge chute) regularly for wear, damage or loss of functionality.

Particular care is required when working under the machine, due to the weight of the ride-on mower. Consult your specialist dealer for this purpose; STIHL recommends STIHL specialist dealers. They will have a workshop pit or a hydraulic working platform.

Check the secure fastening of the front and rear wheels.

Always maintain the ride-on mower and the attachments in perfect operating condition. All safety devices must be present and be in perfect operating condition.

Ensure that the tyres have the correct tyre pressures. The tyre pressures specified in the instruction manual must not be exceeded.

Only perform work on the cutting unit when wearing protective gloves ( 4.5) and exercising extreme care.

Check the function of the brakes at regular, short intervals and, if necessary, have the required adjustments or maintenance operations performed by a technician. STIHL recommends STIHL specialist dealers.

Electrical system and battery:

In order to prevent sparks due to short circuiting, the negative (-) cable must always be disconnected from the battery first and reconnected last.

Never smoke when working on the battery. Sparks, naked flames and other heat sources must be kept away from the

battery.

Particular care is necessary when using battery jump leads. Observe the relevant instructions in order to prevent damage to the ride-on mower (in particular, actuate the starter for a maximum of 10 seconds). ( 12.2)

When charging the battery using another charging system, observe the instructions in section "Charging the battery". ( 14.21)

Never open the battery and do not drop it.

Always charge the battery in an enclosed, well-ventilated room which is dry and weather-protected.

Do not short circuit the battery connections.

Deformed or faulty (leaking) batteries must not be used and must be replaced and disposed of in an environmentally-friendly manner. Observe country-specific legislation.

Fluid may escape from faulty batteries. Avoid contact! In the case of inadvertent contact, rinse with water. Seek medical attention if the fluid contacts the eyes. Escaping battery fluid can cause skin irritation and burns.

Visually inspect the battery connection cables for damage at regular intervals. Have damaged cables replaced by a technician.

Never bypass the fuses. Never use a fuse with a value that differs from the specified rating (ampere).

4.9 Storage for prolonged periods without operation

Allow the engine to cool before storing the machine in an enclosed space.

Store the ride-on mower with empty fuel tank and the fuel reserve in a lockable and well-ventilated room.

Never store the machine with petrol in the fuel tank inside a building in which the petrol fumes could come into contact with naked flames or sparks.

If the tank has to be emptied (e.g. immobilisation before the winter break), the fuel tank must be emptied out of doors only (empty the tank by running the engine out of doors, for example).

Store the machine in good operational condition.

The ignition key must always be removed and kept in a safe place, to prevent unauthorized or improper use by children or other persons.

Thoroughly clean the ride-on mower before storage (e.g. winter break). Dry grass residues and leaves near to the muffler may ignite. Danger of combustion!

Allow the machine to cool down completely before covering it.

Perform all the necessary maintenance operations before storing the machine. ( 14.1)

The battery cables must be disconnected if the ride-on mower is immobilised for longer periods. STIHL recommends removing the battery and storing it in a dry and locked place. ( 14.20)

Ensure that batteries are protected from unauthorised use (e.g. by children).

4.10 Disposal

Waste products such as used engine oil or fuel, used lubricants, filters, batteries and similar wearing parts can be harmful to people, animals and the environment, and must consequently be disposed of properly.

Consult your recycling centre or your specialist dealer for information on the proper disposal of waste products. STIHL recommends STIHL specialist dealers.

Ensure that old machines are properly disposed of. Render the machine unusable prior to disposal. In order to prevent accidents, ensure that you remove the ignition key, the battery and the ignition lead on the engine.

Risk of injury due to the mowing blade!

Always store an old ride-on mower in a safe place prior to scrapping. Ensure that the machine and particularly the mowing blade are kept out of the reach of children.

The battery must be disposed of separately from the machine. Ensure that batteries are disposed of safely and in an environmentally friendly manner.

5.Description of symbols

Attention!

Read the instruction manual and follow the safety instructions before initial use.

Risk of injury!

Remove the ignition key before performing any work on the cutting tool or maintenance and cleaning operations.

Attention!

Beware of objects being thrown up - keep a safe distance and keep other people away.

Attention!

Beware of objects being thrown up when the engine is running - work with the grass catcher box or deflector (special accessory).

Risk of injury!

Do not drive or mow on slopes with an incline greater than 10^ (17%) . Danger of tipping over!

Risk of injury!

Do not drive or mow straight up or down slopes and ramps with an incline greater than 10^ (17%) . Danger of tipping over!

Risk of injury!

Keep other people out of the danger area.

Attention!

Never reach into the working area of the mowing blades when the engine is running.

Risk of injury!

Do not stand on the mowing deck.

Danger of burns!

Do not touch hot surfaces and keep a safe distance. Engine components, especially mufflers, can become extremely hot.

Danger to life through poisoning!

Stop working immediately in case of nausea, headaches, impaired vision (e.g. decreasing field of view), hearing problems, dizziness or decreasing power of concentration. These symptoms may be caused by excessively high exhaust gas concentrations.

Danger to life!

Petrol is poisonous and extremely inflammable. Keep petrol away from sparks, naked flames, pilot lights, heat sources and other ignition sources. Do not smoke!

Before refilling the tank, stop the engine and allow it to cool.

Risk of injury!

Noise is produced when working. Noise may damage the hearing.

Wear hearing protection.

6. Standard equipment

Designation Qty.

Basic unit 1
Ignition key 2
- Grass catcher box 1
Instruction manual 1
- Engine instruction manual 1

7. Operations prior to initial use

Warning!

Prior to all operations on the ride-on mower, carefully read and observe the section "For your safety". ( 4.)

• Check engine oil filling level. ( 14.13)
• Fill fuel tank. (⇒ 12.1)
• Open fuel cock. (⇒ 14.15)
• Optimise tyre pressure. (⇒ 14.9)

8. Controls

8.1 Ignition lock

Note

The ignition key can only be inserted and removed in the "engine off" (STOP) position. The ignition lock can only be operated with the appropriate ignition key.

Never use a screwdriver or similar!

Insert ignition key (1) in ignition lock (2).

The following three positions can be selected by turning the ignition key:

Engine off:

The engine is switched off or will be stopped.

Ignition on/engine running:

The ignition on is switched on. Following starting, the ignition key returns automatically to this position and the engine continues to run.

Start engine:

When all safety-relevant points for starting are fulfilled and the ignition key is turned to this position, the engine starts.

On releasing the ignition key, it returns automatically to the "engine running" position.

Note

When the engine is stopped, a signal tone is activated after 20 seconds in the "ignition on" position. The acoustic signal indicates that the battery is being discharged. To deactivate the signal tone, turn the ignition key to the "engine off" position or start the engine.

8.2 Throttle lever with choke function

The engine speed is regulated using the throttle lever. To start the engine, set the throttle lever to the choke position.

Avoid damage to the machine!

Deactivate the choke as soon as the engine is running. Never move the throttle lever to the choke position when the engine is running.

Choke position:

Push throttle lever (1) fully forwards into the choke position (note detent).

Setting the engine speed:

Set the throttle lever to the MAX position during mowing and to start the warm engine.

If throttle lever (1) is pushed forwards or backwards, the engine speed changes along with the speed of the mowing blade if the mowing deck is engaged.

MAX position:

Maximum engine speed

MIN position:

Minimum engine speed

8.3 Mowing deck switch

The mowing deck switch can be used to engage the mowing deck when the engine is running and with due regard to all safety devices ( 11)

Avoid damage to the machine!

Do not engage the mowing blade in tall grass or when set to the lowest cutting level.

Only engage the mowing blade at the maximum engine speed.

Engaging the mowing deck

Press switch (1) upwards to the stop.

Disengaging the mowing deck

Press switch (1) downwards to the stop.

If necessary, the electronics can be programmed so that the mowing deck is automatically disengaged when the grass catcher box is full. ( 12.8)

8.4 Reverse mowing safety switch

The reverse mowing safety switch enables the mowing deck for mowing in reverse driving

direction. The mowing deck is automatically disengaged for safety reasons if reverse mowing is not enabled.

For reverse mowing, briefly press reverse mowing safety switch (1) once with the left foot within a defined time window.

Enable with the mowing deck disengaged:

• Bring the ride-on mower to a standstill and select reverse driving direction. (⇒ 8.5)
• Briefly press the reverse mowing safety switch once with the left foot.
• Engage the mowing deck and start reverse mowing within 5 seconds.
  (⇒ 8.3)
  Reverse mowing can also be enabled up to 1 second after starting.

2 Enable with the mowing deck engaged:

• Briefly press the reverse mowing safety switch once with the left foot during mowing operation.
• Switch to reverse driving direction within 5 seconds and continue mowing.
  (⇒ 8.5)
  Reverse mowing can also be enabled up to 1 second after changing the driving direction.

If the reverse mowing safety switch is continuously pressed, the switch must be released within the time window and pressed again.

8.5 Driving direction selector lever

The driving direction is selected using the driving direction selector lever.

The ride-on mower drives in the selected direction after the drive pedal is actuated - actuating the driving direction selector lever alone does not set the machine in motion.

For safety reasons, the driving direction selector lever is locked when the drive pedal is pressed. Therefore release the drive pedal before actuating the driving direction selector lever.

Selecting the driving direction:

Forward driving direction: Move the driving direction selector lever (1) to the front position.

Reverse driving direction:

Move the driving direction selector lever (1) to the rear position.

8.6 Steering wheel

Warning:

Always hold the steering wheel firmly in both hands when driving.

Turning the steering wheel (1) to the left or right R changes the driving direction of the machine.

The further the steering wheel (1) is turned, the smaller the turning radius.

8.7 Driver's seat adjustment lever

The seat can be adjusted to seven notched positions.

• Stop the engine. (⇒ 12.3)
• Sit on the driver's seat and put your right hand on the steering wheel.

1 With your left hand, lift and hold driver's seat adjustment lever (1).
2 Move driver's seat (2) to the required position. Then release the driver's seat adjustment lever again and allow it to engage.

8.8 Drive pedal

Note

Before actuating the drive pedal, ensure that the correct driving direction is selected at the driving direction selector lever. If the parking brake is engaged on the brake pedal is pressed, the drive pedal cannot be actuated.

The driving speed can be continuously regulated via the drive pedal.

Stopping:

Take foot off the drive pedal (selfpropulsion) (1).

Reducing the driving speed: Reduce pressure on the drive pedal (1).

Increasing driving speed: Press down drive pedal (1).

8.9 Brake pedal

The machine can be braked when driving and can be blocked at a standstill via the brake pedal.

Press the brake pedal (1). The more firmly the brake pedal (1) is pressed, the more the rear wheels are braked.

Warning!

Never operate the machine with a defective brake.

Always have a defective brake repaired or adjusted by a specialist dealer.

STIHL recommends STIHL specialist dealers.

Never try to service the brakes yourself.

8.10 Parking brake

The rear wheels of the machine are blocked by the engaged parking brake. This prevents the ride-on mower from being set in motion inadvertently (e.g. on slopes, etc.).

Note

Always check the function of the brakes before engaging the parking brake.

Engaging the parking brake

Press the brake pedal (1) down to the stop with the foot and hold. Pull the parking brake (2) upwards.

• Release the brake pedal again. The parking brake is activated if the brake pedal remains in the pressed position.

• Release the parking brake lever. This swings downwards.

• The rear wheels are blocked.

Releasing the parking brake

Briefly press on brake pedal (1) with the foot.

The brake pedal returns to the initial (unactuated) position.
The parking brake is deactivated and the rear wheels are no longer blocked.

8.11 Cutting height adjustment lever

Six cutting levels can be set using the cutting height adjustment lever.

Unlocking the cutting height adjustment lever

Risk of injury:

Hold the lever firmly at the handle before releasing the cutting height adjustment lever.

For safety reasons, unlock the cutting height adjustment lever when the machine is at a standstill.

Pull the cutting height adjustment lever (1) inwards (towards the driver's seat) and hold.

• The cutting height adjustment lever is unlocked, and the cutting height can be adjusted.

Locking the cutting height adjustment lever

Slowly guide the cutting height adjustment lever (1) outward with the hand until the cutting height adjustment lever engages in a notched position.

8.12 Grass catcher box emptying lever

The grass catcher box can be emptied comfortably using the grass catcher box emptying lever, without the user having to leave the driver's seat.

Disengage the mowing deck. ( 8.3)
- Bring the machine to a standstill before emptying the grass catcher box.
- Press the brake pedal and hold or engage the parking brake.

Pull the grass catcher box emptying lever (1) upwards.

Press the grass catcher box emptying lever (1) forward (in direction of seat). The grass catcher box (2) swings upwards and the clippings fall out.

• Slowly move the grass catcher box emptying lever towards the rear and allow the grass catcher box to reengage with the rear panel.
• Press the grass catcher box emptying lever downwards and move to the initial position.

8.13 Grass catcher box release lever

Warning:

Ensure that you do not pinch your fingers when actuating the grass catcher box release lever.

The grass catcher box release lever is located underneath the grass catcher box handle.

The grass catcher box release lever must be pulled upwards and held before attaching or detaching the grass catcher box.

Releasing the grass catcher box:
Pull grass catcher box release lever (1) fully upwards and hold.

• The grass catcher box is released and can be removed.

Locking the grass catcher box:

After attaching the grass catcher box, release the pulled-out grass catcher box release lever (1). Ensure that the lock engages fully.

• Once locked, the grass catcher box is firmly attached to the machine again.

8.14 Gearbox freewheel lever

The gearbox can be disengaged (e.g. for pushing the machine) or engaged (for self-propulsion) by means of freewheel lever.

Warning! Risk of crush injuries!

The gearbox freewheel lever should only be pulled out on level surfaces, as the machine may be set in motion.

If the machine is parked with the gearbox disengaged, the parking brake must always be engaged.

Note

The gearbox freewheel lever should only be pulled out when the ride-on mower is to be pushed.

Disengaging the gearbox

Pull the gearbox freewheel lever (1) outwards to the stop.

Engaging the gearbox

Lift up the gearbox freewheel lever (1) and then press it inwards to the stop.

8.15 Level sensor (grass catcher box)

A continuous tone sounds if the grass catcher box is full. This signals that the grass catcher box needs to be emptied.

Disengaging the mowing deck stops the continuous tone.

The time for the filled grass catcher box signal is adjusted by modifying the length of the (grass catcher box) level sensor.

This allows you to adapt filling of the grass catcher box to the characteristics of the clippings.

A shorter sensor generally causes later triggering of the signal (the grass catcher box is filled to a greater extent, ideal for very dry clippings).

The level sensor can be adjusted to 6 notched positions.

In delivery condition, the level sensor (grass catcher box) is fully extended.

Adjusting the level sensor:

• Stop the engine. (⇒ 12.3)
• Engage the parking brake. (⇒ 8.10)
• Remove the grass catcher box.
  (⇒ 12.10)

Extend or shorten the level sensor by moving slide (1) of the (grass catcher box) level sensor in the direction of the arrows.

• Attach the grass catcher box. (⇒ 12.10)

9. Electronics

In order to ensure safe operation, the ride-on mower is equipped with electronics which check all the safety devices before each starting procedure and when the mower is running.

9.1 Self-diagnosis when starting

Before the engine is started, the electronics perform self-diagnosis. This checks switches, wiring, etc. for correct functioning.

Activating self-diagnosis:

• Sit on the driver's seat.
• Release the parking brake. ( 8.10)
• Turn the ignition key to the "ignition on" position ( 8.1) - do not press any switches or actuate any pedals.

Self-diagnosis without faults:

A short beep sounds - the electronics are activated and the ride-on mower is ready to start.
- Start the engine. (⇒ 12.2)

Self-diagnosis with faults:

A continuous beep or three successive beeps sound.

A continuous beep signals a fault in the electronics or a battery connected with the incorrect polarity.
- Turn the ignition key to the "engine off" position. (⇒ 8.1)

• Check the polarity of the battery connections and connect the wiring correctly if necessary. (⇒ 14.19)
• Repeat self-diagnosis. If the continuous beep continues to sound even after the battery is correctly connected, an electronic fault is present. Consult your specialist dealer; STIHL recommends STIHL specialist dealers.

Three successive beeps signal a fault in the electrics (short circuit) or in the seat switch. It is not possible to start the engine.

• Turn the ignition key to the "engine off" position. (⇒ 8.1)
• Have a detailed diagnosis carried out by a specialist dealer. STIHL recommends STIHL specialist dealers.

9.2 Ride-on mower faults during operation

The electronics monitor the safe condition during operation. Three successive beeps sound if there is a fault in the electrics (short circuit, loose connectors, broken wire).

The engine is stopped.

Behaviour:

• Turn the ignition key to the "engine off" position. (⇒ 8.1)
• Activate self-diagnosis. ( 9.1)

If the fault cannot be rectified, detailed diagnosis is necessary. Consult your specialist dealer; STIHL recommends STIHL specialist dealers.

9.3 Electronics faults

In rare cases, electronics faults may occur during operation of the mower. A continuous beep sounds and the engine is stopped.

Behaviour:

• Turn the ignition key to the "engine off" position. ( 8.1)
  Activate self-diagnosis. ( 9.1)
• Restart the engine. (⇒ 12.2)

If the fault cannot be rectified, detailed diagnosis is necessary. Consult your specialist dealer; STIHL recommends STIHL specialist dealers.

10. Notes on working with the machine

Warning: Risk of injury.

Before each use, observe all information regarding safe operation of the machine. Working on slopes requires special concentration and care.

Note

Check the mowing deck for correct installation position before starting work.

Select a flat, even area for initial use of your machine and mow in straight and slightly overlapping strips for practising purposes.

Grass should always be mowed when dry.

A perfect, thick lawn is achieved by

• Mowing at high engine speed (throttle lever in MAX position) and a slow driving speed.
• Regular mowing and keeping the grass short.
• Not cutting the lawn too short in hot, dry conditions as it will be burnt by the sun and become unsightly.
• Using a sharp mowing blade. Mowing blades should therefore be regularly sharpened or replaced.
• Changing the cutting direction.

Mowing tall grass

If the grass is very high, it is better to mow it in two stages:

• use the highest cutting height, maximum engine speed and slow driving speed for the first mowing operation;
  for the second mowing operation, select the desired cutting height and set the maximum engine speed. Adjust the driving speed to the condition of the lawn.

Warning - fire hazard!

Avoid overloading the mowing deck drive. Overloading may lead to constant slipping of the V-belt and consequently to a fire hazard due to overheating.

Unusual running noise, e.g. a "squealing" (slipping noise) of the V-belt, indicates overloading. For this reason, never mow in high grass when the discharge chute is blocked or the grass catcher box is full; use a mulching kit (special accessory) if necessary.

The mowing deck, particularly the V-belt area, must always be kept free of combustible material (grass, leaves, etc.). It should also be cleaned regularly to prevent a fire hazard.

Preventing blockage of the discharge chute

If the discharge chute becomes blocked with grass, reduce the driving speed. This may be too high in relation to the lawn conditions. The slide of the level sensor should be fully pulled out. ( 8.15)

If the problem persists, the probable cause is damaged or worn highlift blade. Replace the mowing blade.

Furthermore, the mowing deck, discharge chute and mowing blade should be cleaned after each use to prevent the accumulation of grass deposits.

Fertilisation

Mowing the grass deprives the ground of permanent nutrients, which can be returned by using a high-grade, long-term lawn fertiliser. Usually, fertilising three times per mowing season is necessary. For this purpose, the lawn should be dry,

so that the fertiliser does not stick to the grass blades and burns them. It is then better to water the lawn, which results in the fertiliser being flushed off the grass blades. (Observe manufacturer's instructions for use.)

Natural fertilising is possible using lawn clippings. This is made possible by the use of the mulching kit. The mulching kit is available as a special accessory and is not included in the standard equipment. (Further information is available from your STIHL specialist dealer.)

Ground-conserving working

The most important factors for groundconserving working are operating technique and ground moisture.

In order to achieve clean mowing results, the driving speed must be adapted to the condition of the grass to be mowed (height and density) and to the moisture of the lawn.

Executing curves that are too tight increases the loading on the turf and leads to poor mowing results, particularly on wet grass, as the wheels sink into the soft grass.

11. Safety devices

The machine is equipped with several safety devices for safe operation and for the prevention of improper use.

Risk of injury!

If a safety device is found to be defective, the machine must not be operated. Consult a specialist dealer; STIHL recommends STIHL specialist dealers.

To start the engine, the following conditions must always be fulfilled:

• the mowing deck must be disengaged,
  the brake pedal must be pressed or the parking brake engaged.

The engine is switched off if the user

• leaves the driver's seat with the mowing deck engaged,
• lifts the grass catcher box or removes the deflector (special accessory) with the mowing deck engaged,
• leaves the driver's seat without engaging the parking brake.

Integrated blade run-down brake:

Following disengagement, the mowing blades come to a standstill after

5 seconds at the latest.

Following engagement of the mowing deck, the mowing blades turn and a wind noise is audible. The run-on time corresponds to the duration of the wind noise following disengagement. This can be measured using a stopwatch.

To check the integrated blade run-down brake, measure the duration of the wind noise following disengagement using a stopwatch.

If this duration exceeds 5 seconds: consult a STIHL specialist dealer.

12. Operating the machine

Risk of injury!

Carefully read and observe the entire section "For your safety" before operating the machine. ( 4.)

For safety reasons, the machine must not be used on slopes with an inclination of more than 10^ (17.6%) .

A slope inclination of 17.6% corresponds to a vertical height increase of 17.6cm for a 100~cm horizontal distance.

• Familiarise yourself with the controls on the machine before using it. (⇒ 8.)
  Before operating the machine, inspect the maintenance schedule and carry out all relevant maintenance operations. ( 14.1)
• Check the safety devices before each use. (⇒ 11.)

The ride-on mower must not be operated if safety devices are missing or damaged or have been bypassed or modified.

12.1 Filling the fuel tank

Maximum tank capacity:

6litres

Fuel recommendation:

Unleaded petrol; fresh, good quality fuel.

Please consult the engine instruction manual for details on the fuel quality (octane rating).

Unscrew and remove tank cap (1).

• Stop the engine and allow it to cool down (warm to the touch). (⇒ 12.3)
• Engage the parking brake. (⇒ 8.10)
• Slowly and carefully fill the fuel into the tank using a suitable funnel (not included in standard equipment). In order to prevent the fuel from overflowing, filling should be performed in several stages. Check the filling level in the tank visually on the tank display between the individual filling operations.

The more fuel has already been filled into the tank, the smaller the filling quantities should be for each filling operation.

The fuel level in the tank can be read off via tank display (2). Fill the tank with fuel until the fuel level has reached the upper marking.

• Screw on the tank cap. Then tighten the tank cap hand-tight.
• Wipe away any spilled fuel and allow it to evaporate before starting the engine.

12.2 Starting the engine

Avoid damage to the machine! If the engine does not start immediately, leave breaks between the starting attempts. Never leave the ignition key in the "start engine" position for more than 10 seconds.

Before starting:

• Check the engine oil level. ( 14.13)
• Remove grass residues from the mowing deck and engine compartment.
• Check the fuel and top up if necessary. ( 12.1)

Before each use, check the braking function. ( 12.5)
- Perform all personal settings (driver's seat adjustment) on the machine - not when the engine is running!
- Never start the machine in the vicinity of other persons, particularly children, or animals.

Starting sequence:

• Open the fuel cock. (⇒ 14.15)
• Sit on the driver's seat.
• Before starting, press the brake pedal to the stop and hold or engage the parking brake. ( 8.9) , ( 8.10)
• Insert the ignition key in the ignition lock and turn to the "ignition on" position. ( 8.1)
• Set the throttle lever to the choke position. (⇒ 8.2)
• Turn the ignition key to the "start engine" position. The engine starts. As soon as the engine is running, release the ignition key. This returns automatically to the "engine running" position.
• Return the throttle lever to the MAX position when the engine is running. Note detent! (⇒ 8.2)
• When the engine is running, the foot can be removed from the brake pedal or the parking brake released.

12.3 Stopping the engine

• Brake the machine to a complete standstill.
  Disengage the mowing deck. ( 8.3)

• Set the throttle lever to the MIN position. ( 8.2)

• Turn the ignition key to the "engine off" position. The engine is switched off.
• Engage the parking brake. (⇒ 8.10)
• Close the fuel cock if necessary.
  (⇒ 14.15)
• Remove the ignition key and store safely.

12.4 Driving

Warning!

A low driving speed must always be selected on rough terrain. Before each change of direction, especially on slopes, reduce the driving speed appropriately.

Avoid damage to the machine! In order to ensure optimum cooling of the gearbox, always drive at the maximum engine speed. Therefore only regulate the driving speed using the drive pedal and not the throttle lever.

Before driving:

• Check the function of the brakes.
• Engage the gearbox freewheel lever.
  (⇒ 8.14)
• Start the engine. (⇒ 12.2)

Forward driving:

• Set the throttle lever to the MAX position. ( 8.2)
• Select the forward driving direction.
  (⇒ 8.5)

• Disengage the parking brake, if engaged. (⇒ 8.10)

• Actuate the drive pedal - the machine moves forward.

Reversing:

• Set the throttle lever to the MAX position. (⇒ 8.2)
• Select the reverse driving direction.
  (⇒ 8.5)
• Disengage the parking brake, if engaged. (⇒ 8.10)
• Actuate the drive pedal – the machine moves backward.

12.5 Braking

• Reduce the driving speed by easing the pressure on the drive pedal - avoid braking abruptly at the maximum driving speed. (⇒ 8.8)
• Press the brake pedal down evenly until the machine comes to a standstill. (⇒ 8.9)

12.6 Adjusting the cutting height

Risk of injury!

Adjust the cutting height only when the machine is at a standstill.

• Brake the machine to a complete standstill.
• Unlock and hold the cutting height adjustment lever. (⇒ 8.11)
• The cutting height can be adjusted by moving the cutting height adjustment lever upward or downward to 6 cutting levels.
• Lock the cutting height adjustment lever. (⇒ 8.11)

Cutting level 1:

Lowest cutting height (35 mm)

Cutting level 6:

Highest cutting height (90 mm)

12.7 Mowing

If the mowing deck is engaged when driving, the engine speed is briefly reduced due to the additional load (mowing blade starting to rotate).

Before mowing:

• Read and observe the section "Notes on working with the machine". (⇒ 10.)
  Always work at the maximum engine speed. The mowing blade is optimised for this speed - it produces the best cutting pattern as well as the most powerful suction effect for collection of the clippings.

Engage the mowing deck in the following sequence:

• Start the engine. (⇒ 12.2)
• Set the throttle lever to the MAX position. ( 8.2)
• Drive the ride-on mower onto the lawn. Do not engage the mowing deck in tall grass or when set to the lowest cutting level. Only engage the mowing deck when the machine is already on the area to be worked.

Forward mowing:

Select the forward driving direction ( 8.5) then engage the mowing deck by pressing the mowing deck switch. ( 8.3)

Reverse mowing:

Select the reverse driving direction ( 8.5) and briefly press the reverse mowing safety switch ( 8.4) once, then engage the mowing deck by pressing the mowing deck switch within 6 seconds. ( 8.3)

During mowing:

• Set the throttle lever to the MAX position. ( 8.2)
  Always adapt the driving speed to the grass height/cutting level. A low driving speed should be selected when mowing tall grass/at a low cutting level.

A permanent continuous tone signals that the grass catcher box is full. ( 12.9)

Changing the driving direction with the mowing deck engaged:

• For reverse mowing, briefly press the reverse mowing safety switch once within the designated time window (5 seconds/1 second after switching). ( 8.4)
• Bring the machine to a standstill on the lawn and set the required driving direction using the driving direction selector lever. ( 8.5)
• Continue mowing.

Disengage the mowing blade in the following sequence:

• Drive onto an area of grass which has already been mown or select the highest mowing deck cutting level. ( 8.11)
  Disengage the mowing deck by pressing the mowing deck switch. ( 8.3)

Risk of injury!

After disengaging the mowing deck,
beware of the mowing blade
running on for up to 5 seconds
before coming to a standstill. ( 11.)

12.8 Programming automatic disengagement of the mowing deck

The electromagnetic blade clutch can be programmed so that the mowing deck is automatically

disengaged when the grass catcher box is full. This enhances operating convenience as blockage of the discharge chute is prevented.

• Stop the engine. (⇒ 12.3)
• Turn the ignition key to the "ignition on" position. (⇒ 8.1)
• Wait for the electronics self-diagnosis.

Activating automatic disengagement:

• Set the driving direction selector lever to forwards.
• Press the reverse mowing safety switch and actuate the drive pedal at the same time for 5 seconds.

A short beep signals that automatic operation is switched on.

• The current setting is permanently saved.

Deactivating automatic disengagement:

• Set the driving direction selector lever to forwards.
• Press the reverse mowing safety switch and actuate the drive pedal at the same time for 5 seconds.

Three beeps in quick succession signal that automatic operation is switched off.

• The current setting is permanently saved.

12.9 Emptying the grass catcher box

Risk of injury:

Only empty the grass catcher box on level surfaces, as the centre of gravity is changed by swinging up the grass catcher box and thus the danger of tipping over is increased.

A permanent continuous tone during mowing signals that the grass catcher box is completely full and must be emptied.

Disengage the mowing deck. The continuous tone ceases once the mowing deck has been disengaged.

Grass catcher box not being completely filled

• Check whether the discharge chute is installed. ( 14.6)
• Correctly adjust the level sensor (grass catcher box). ( 8.15)

• When emptying the grass catcher box, check the discharge chute for blockage and clean if necessary.

• Check the wings of the mowing blade for damage or wear and replace if necessary.

Emptying the grass catcher box

Disengage the mowing deck. ( 8.3) The continuous tone ceases.
- Select the highest mowing deck cutting level. (⇒ 8.11)
- Drive the machine to the point at which the clippings are to be emptied.
Pull out the grass catcher box emptying lever and push it forward. ( 8.12) Grass catcher box swings upwards and the clippings fall out.
- With the grass catcher box raised, it may be necessary to drive forward slightly, so that the clippings can fall out of the grass catcher box.
- Briefly swing the grass catcher box up and down so that the all the clippings fall out.
- Slowly move the grass catcher box emptying lever towards the rear and allow the grass catcher box to reengage with the rear panel.
- Release the grass catcher box emptying lever again and press down until it has returned to the initial retracted position.

12.10 Removing and attaching the grass catcher box

Before removing:

Disengage the mowing deck. ( 8.3)
- Empty the grass catcher box. ( 12.9)
- Engage the parking brake. (⇒ 8.10)
- Stop the engine. (⇒ 12.3)

When removing and attaching the grass catcher box, the grass catcher box release lever must always be held in the released position until the grass catcher box has been fully removed or attached.

Removing the grass catcher box

Pull the grass catcher box release lever (1) upwards and hold.

Remove the grass catcher box (2).

Attaching the grass catcher box

Position grass catcher box (2) on both snap-in hooks (3) on the rear panel.

• Actuate and hold the grass catcher box release lever. (⇒ 8.13)

Raise grass catcher box (2) to the stop.

• Release the grass catcher box release lever and ensure that the grass catcher box engages. ( 8.13)

If the machine is operated without the grass catcher box or deflector (accessory, not included in standard equipment), the mowing deck cannot be engaged and the engine stops automatically.

12.11 Pulling loads

Risk of injury!

The driving characteristics of the machine change when transporting loads (e.g. longer braking distance). The heavier the load, the more the driving characteristics change. Therefore select a lower driving speed when pulling loads.

Avoid damage to the machine!

The maximum pulled load is reduced on inclines.

Before attaching loads, check the braking function. ( 12.5)

Maximum trailer weight on a level surface = 250kg Maximum trailer weight on a maximum 10^ inclination = 100kg
Maximum coupling load = 40kg Maximum pulled load = 40kg
A pulled load of 40kg at the trailer coupling is achieved when pulling a trailer with a weight of 250kg on a level surface.

12.12 Operating on slopes

• Check the braking function before operating the mower on slopes.
  (✗ 12.5)

• Drive slopes in a longitudinal direction. Driving transversely increases the danger of tipping over - note the maximum slope inclination. (⇒ 4.7)

• Avoid changes of direction on slopes – if changes of direction cannot be avoided, they must be executed with particular care.

12.13 Guide

Note

The accuracy of the guide depends on the body size of the user and on the adjustment of the driver's seat.

In order to prevent uncut grass being left between several mowing strips, the machine is equipped with a guide.

The user sits on the driver seat.

When the guide (1) is positioned precisely at the mowing edge (transition from already mown lawn to unmown lawn) as

seen from the driver's seat, the lawn is cut with an overlap (A) of approx. 5cm . This overlap ensures that the mowing blades cut approx. 5cm into the already cut mowing strip. This ensures that no uncut grass is left between the two mowing strips.

13. Mowing deck

Overview of mowing deck components in installed condition

1 Mowing deck
2 V-belt
3 Cotter pin
4 Retaining pin

5 V-belt tensioner lever
6 V-belt pulley
7 Front mowing deck mounting
8 Rear mowing deck mounting

13.1 Removing the mowing deck

Risk of injury!

Prior to all operations on the mowing deck, carefully read and observe the section "For your safety". ( 4.)

Avoid damage to the machine!

When the mowing deck is removed, the ride-on mower must not be operated with the discharge chute installed.

Remove the discharge chute so that it cannot catch on objects (molehills, roots, etc.) and become damaged. ( 14.5)

• Park the machine on level and solid ground.
• Stop the engine. (⇒ 12.3)
• Remove the ignition key.
• Engage the parking brake. (⇒ 8.10)
• Remove the grass catcher box.
  (⇒ 12.10)
• Remove the discharge chute. (⇒ 14.5)

Removing the rear V-belt cover

Danger of burns:

Allow the machine, particularly the exhaust system, to cool down completely before removing the rear V-belt cover.
- Select the lowest cutting level.

Step 1:

Remove closure screw (1) by turning through 90^ anti-clockwise.

Step2:

Pull the rear V-belt cover (2) forwards and remove.

Detaching the V-belt

• Select cutting level 3.

Press V-belt tensioner lever (5) in the direction of the arrow (forwards) using a suitable length of pipe and hold.

Remove V-belt (2) from V-belt pulley (6).

After removing the V-belt, slowly release the V-belt tensioner lever.

Detaching the mowing deck at the rear

Danger of pinching:

Before pulling out the retaining pin, ensure that no body parts (hands, fingers, feet, etc.) are positioned directly under the mowing deck.

Note

To facilitate removal, note and carefully observe the specified sequence.

Step 1:

Remove the cotter pin (3) from the retaining pin (4).

Step 2:

Lift up the mowing deck (1) slightly and hold. Detach and remove the retaining pin (4).

Step 3:

Remove the cotter pin (3) from the retaining pin (4).

Step 4:

Lift up the mowing deck (1) slightly and hold. Detach and remove the retaining pin (4).

• Carefully and slowly set down the mowing deck.

Detaching the mowing deck at the front

Danger of pinching!

Before detaching, ensure that no body parts (hands, fingers, feet, etc.) are positioned directly under the mowing deck.

After detaching the mowing deck, the front mowing deck mounting automatically swings upwards.

Push mowing deck (1) forwards and detach at front mowing deck mounting (7).

Removing the mowing deck

• Select cutting level 6.

Pull out the mowing deck (1) on the right-hand side.

13.2 Installing the mowing deck

Risk of injury!

Prior to all operations on the mowing deck, carefully read and observe the section "For your safety". ( 4.)

• Park the machine on level and solid ground.
• Stop the engine. (⇒ 12.3)
• Remove the ignition key.
• Engage the parking brake. (⇒ 8.10)
• Select the highest cutting level.
• Remove the grass catcher box.
  (⇒ 12.10)
• Remove the discharge chute. (⇒ 14.5)

Pushing in the mowing deck

• Select cutting level 6.

Push the mowing deck (1) under the machine from the right-hand side with the rollers facing forward.

Position the V-belt (2) over the linkage of the mowing deck mounting (8).

Attaching the mowing deck at the front

• Select the lowest cutting level.

Swivel front mowing deck mounting (7) downwards and attach to mowing deck (1).

Push mowing deck (1) to the rear, attaching mowing deck mounting (7) to the mowing deck.

Attaching the mowing deck at the rear

Note

Before attaching, check that the mowing deck is correctly attached at the front mowing deck mounting.

• Raise mowing deck (1) with one hand and hold. The bores of the mounting on the mowing deck must be aligned with those of the mowing deck mounting on the machine.

Note

To facilitate installation, note and carefully observe the specified sequence.

Step 1:

Push the retaining pin (4) through the bores of the mounting on the mowing deck (9) and those of the mowing deck mounting (8) to the stop.

Step 2: Insert cotter pin (3) through the bore in the retaining pin (4).

Step 3:

Push the retaining pin (4) through the bores of the mounting on the mowing deck (9) and those of the mowing deck mounting (8) to the stop.

Step 4:

Insert cotter pin (3) through the bore in the retaining pin (4).

Fitting the V-belt

Danger of pinching:

When fitting the V-belt, it must be ensured that the hands or fingers do not come between the V-belt and the V-belt pulleys when releasing the V-belt tensioner lever.

• Select cutting level 3.

Press V-belt tensioner lever (5) in the direction of the arrow (forwards) using a suitable length of pipe and hold.

Fit V-belt (2) onto V-belt pulley (6). When fitting, ensure that the V-belt is installed correctly (not twisted).

• Slowly release V-belt tensioner lever (5) and ensure that the V-belt is routed correctly in the V-belt pulley.
  Install the discharge chute. ( 14.6)
  Install the grass catcher box. ( 12.10)

Risk of injury:

After attaching the mowing deck, perform an operational check. Ensure that no other persons, particularly children or animals are in the vicinity. Only perform the operational check when the user is sitting on the machine.

Installing the rear V-belt cover

Danger of burns:

Allow the machine, particularly the exhaust system to cool down completely before installing the rear V-belt cover.

• Select the lowest cutting level.

Insert the rear V-belt cover (1) with the retaining device at the locating lug (2) on the gearbox (3) in direction of arrow.

Push rear V-belt cover (1) upwards and hold. Turn the closure screw (2) clockwise through 90^ .

Note

After installing, check that the rear V-belt cover is seated securely.

Avoid damage to the machine

After installation, the V-belt must be free and must not contact the rear V-belt cover.

Check this visually.

14. Maintenance

Risk of injury!

Before all maintenance and repair work, carefully read and observe the section "For your safety" and especially the subsection "Maintenance and repairs". ( 4.)

Remove the ignition key to prevent inadvertent starting of the engine.

Always wear gloves.

Never touch the mowing blades before they have come to a standstill.

For safety reasons, maintenance operations on the brakes are not permitted. Only allow adjustment and maintenance operations to be performed by a specialist dealer. STIHL recommends STIHL specialist dealers.

General maintenance instructions:

The maintenance schedule and maintenance intervals must be strictly observed.
- Observe the maintenance schedule and maintenance operations in the engine instruction manual.

Before any maintenance, repair and cleaning operations:

• Park the machine on level and solid ground.
• Stop the engine. (⇒ 12.3)
• Engage the parking brake. (⇒ 8.10)
• Allow the engine and muffler to cool down completely.

The following maintenance and repair work can be found in the engine instruction manual:

• Replacing the air filter.
  Information on engine oil (type, oil capacity, etc.).
• Checking and replacing the spark plug.
• Changing the fuel filter.
• Cleaning the engine.

14.1 Maintenance schedule

All the instructions in the maintenance schedule must be strictly observed. Non-observation of the maintenance plan can lead to significant damage to the machine.

Note

Due to heavy-duty use, especially in professional operation, shorter maintenance intervals than those specified here may be required.

Moreover, extreme external conditions such as sandy or stony ground, dust, etc. may lead to shorter maintenance intervals than those specified in the instruction manual.

An inspection by a specialist dealer must be performed after every 100 operating hours or once a year. STIHL recommends

STIHL specialist dealers.

Maintenance operations prior to initial use:

In order to achieve more efficient and safer operation and to prevent faults, it is important to be familiar with the condition of the machine.

For this purpose, the following checks are required before each start (visual inspection):

-Tyre pressure. ( 14.9)
- Wear and damage to tyres.
- Leaks in fuel carrying lines.
- Engine oil level (see engine instruction manual).
-Fuel-tank level.
- General visual inspection of the machine and mowing deck. Particularly the protective covers must be inspected for damage.
- Tightness of bolted connections.

Maintenance operations after each use:

Avoid damage to the machine! Remove all deposits from the upper side of the mowing deck in order to prevent accumulation of dry and therefore flammable organic material.

• Clean the machine (mowing deck, discharge chute) and any attachments.
• Observe the instructions on cleaning the engine (see engine instruction manual).
• Clean the gearbox - brush off grass residues and any other dirt.

Maintenance operations after the first 10 operating hours (initial operation):

• An inspection by your specialist dealer is recommended. STIHL recommends STIHL specialist dealers.

Maintenance operations after every 25 operating hours:

• Checking of blade fastening and blade sharpness, observe blade wear limit.

Maintenance operations after every 50 operating hours:

• General lubrication.
• Checking the installation position of the mowing deck. ( 14.8)

Maintenance operations after every 100 operating hours:

• Replace the mowing blade.
• Allow inspection to be carried out by a specialist dealer. STIHL recommends STIHL specialist dealers.

Note

During the inspection by the specialist dealer, the braking function is checked and, if necessary, the brakes are serviced. Furthermore, all required maintenance operations on the gearbox are carried out.

14.2 Cleaning the machine

Avoid damage to the machine! Never spray water (high-pressure cleaner) onto engine components, seals, electrical components (battery, wiring harness, etc.) and bearing points. This may result in damage and expensive repairs.

Do not use aggressive cleaning agents. These cleaners can damage plastics and metals, impairing the safe operation of your STIHL machine. If you are unable to remove the dirt with water using a brush or a cloth, STIHL recommends the use of a special cleaner (e.g. STIHL special cleaner).

Always remove the mowing deck for cleaning and maintenance operations.

• Stop the engine. (⇒ 12.3)
• Engage the parking brake. (⇒ 8.10)
• Remove the ignition key and keep it in a safe place.
• Remove the mowing deck. (⇒ 13.1)

• First, remove accumulated clipping deposits in the mowing deck housing using a stick.

• Clean the underside of the mowing deck with water and a brush.

• When cleaning the upper side of the mowing deck, ensure that the V-belt and toothed belt do not get wet – never spray water into the openings in the covers.
• Clean the discharge chute using running water and a brush when removed and well away from the machine.
• Remove grass residues from the mowing deck (upper and underside), engine compartment and gearbox. Clean the cooling ribs of the engine and gearbox.
• Clean the mowing blades with water and a brush – under no circumstances should you hit the mowing blades (e.g. with a hammer) to loosen dirt.
• Remove the grass catcher box clean using running water and a brush well away from the machine. (⇒ 12.10)

14.3 Cleaning the level sensor (grass catcher box)

The level sensor (grass catcher box) may become soiled when mowing wet or moist grass. This results in impaired function. By way of prevention, clean the level sensor following each mowing operation or each time the discharge chute is cleaned.

• Stop the engine. (⇒ 12.3)
• Remove the ignition key and keep it in a safe place.
• Engage the parking brake. (⇒ 8.10)
• Remove the grass catcher box.
  (⇒ 12.10)

Using slight pressure, press level sensor (grass catcher box) (1) downwards. When doing so, it must move easily and a quiet "clicking" of the switch must be audible. After the level sensor is released, it must automatically return upwards to the initial position.

• If the level sensor does not move easily or is dirty, carefully clean it using a brush - do not use water.

14.4 Checking the safety devices

Risk of injury!

The safety devices must only be checked from the driver's seat.

No persons, particularly children, or animals must be in the vicinity.

Proper functioning of the safety devices must be checked at least once a month.

Following longer periods without use, for low-use machines or after repairs, always check all safety devices before using again.

Checking the brake switch:

• Sit on the driver's seat.

Install the grass catcher box. ( 12.10)
- Stop the engine and allow it to come to a standstill.
Disengage the mowing deck. ( 8.3)
- Do not actuate the brake pedal or release the parking brake.
- Turn the ignition key to the "start engine" position. ( 8.1)

The engine cannot be started when the brake switch is functioning correctly.

Checking the mowing deck switch:

• Sit on the driver's seat.
• Press the brake pedal to the stop and hold. ( 8.9)
• Engage the mowing deck. ( 8.3)
• Turn the ignition key to the "start engine" position. ( 8.1)

The engine cannot be started when the mowing deck switch is functioning correctly.

Checking the seat switch:

• Sit on the driver's seat.
• Start the engine and allow it to run at maximum speed. ( 12.2) , ( 8.2)
• Engage the mowing deck. (⇒ 8.3)
  Relieve the weight on the driver's seat by standing up slowly and carefully. Do not dismount!

The engine will be switched off if the seat switch is functioning.

Checking the grass catcher box switch:

• Sit on the driver's seat.

• Start the engine and allow it to run at maximum speed. ( 12.2) , ( 8.2)

• Engage the mowing deck. ( 8.3)
  From the driver's seat, tilt (empty) the grass catcher box upwards using the grass catcher box emptying lever. ( 12.9)

The engine will be switched off and the mowing deck disengaged if the grass catcher box switch is functioning.

Checking the reverse mowing safety switch:

• Sit on the driver's seat - do not press the reverse mowing safety switch.
• Start the engine ( 12.2) and allow it to run at maximum speed. ( 8.2)
• Engage the mowing deck. ( 8.3)
• Select reverse driving direction and drive off. (⇒ 8.5)

If the reverse mowing safety switch is functioning, the mowing deck will be disengaged after 1 second.

14.5 Removing the discharge chute

For better cleaning of the discharge chute, it is possible to remove it without the use of additional tools.

• Stop the engine. (⇒ 12.3)
• Remove the ignition key and keep it in a safe place.
• Engage the parking brake. (⇒ 8.10)
• Remove the grass catcher box.
  (⇒ 12.10)

Unscrew and remove retaining nut (1). Remove discharge chute (2).

Avoid damage to the machine! Reinstall the discharge chute immediately after cleaning so that this is not forgotten.

14.6 Installing the discharge chute

Avoid damage to the machine! When pushing in, ensure that the discharge chute fits over the discharge opening of the mowing deck on all sides.
Note When cleaning the discharge chute or each time it is removed, also check the level sensor (grass catcher box) and clean if necessary.
- Stop the engine. (⇒ 12.3)
- Remove the ignition key and keep it in a safe place.
- Engage the parking brake. ( 8.10)
- Remove the grass catcher box.
(⇒ 12.10)

- Select the lowest cutting level.
Push discharge chute (1) in to the stop and position it over the discharge opening in the mowing deck.
Screw in retaining nut (2) and tighten.

14.7 Mowing blade maintenance

Risk of injury!

Always wear gloves. If you do not have the necessary expertise or auxiliary equipment, please always contact a specialist dealer. (STIHL recommends STIHL specialist dealers).

STIHL recommends the use of original STIHL spare parts. Never touch the mowing blade before it has come to a standstill. Always set down the mowing deck on a non-slip surface.

Maintenance interval:

Every 25 operating hours

Maintenance operations:

• Check the mowing blade wear limits.

• Sharpen the mowing blades if necessary. If mowing results deteriorate, the mowing blade should be sharpened.

Checking the mowing blade wear limits

Risk of injury!

A worn mowing blade may break off and cause serious injuries. The instructions for blade maintenance must therefore always be observed. Mowing blades are subject to differing degrees of wear depending on the location and duration of use. If you use the machine on sandy ground or use it frequently under dry conditions, the mowing blade will be subjected to greater loads and will wear more quickly than normal.

Caution!

Always replace the blade fastening screw and the retaining washer when replacing the mowing blade.

STIHL recommends removing the mowing deck if the wear limits need to be checked. If a suitable lifting platform is available, the mowing blade wear limits can also be checked with the mowing deck installed.

• Remove the mowing deck. ( 13.1)
• Carefully clean the mowing deck and mowing blades.

Placing the mowing deck in safe position for checks:

Lean mowing deck (1) against a wall and secure against slipping with the foot.

Blade thickness:

Check the thickness of mowing blade (1) at several points using a slide calliper. The mowing blade must meet the minimum blade thickness A at each individual point.

A>2.5mm

Blade width:

Check the width of mowing blade (1) at the point shown using a slide calliper. The mowing blade must meet the minimum blade width B.

B>65mm

Risk of injury!

If the specified wear limits are reached or exceeded, the mowing blade must be replaced for safety reasons.

Removing the mowing blade

• Remove the mowing deck. (⇒ 13.1)
• Lean the mowing deck against a wall and secure against slipping.

Loosen and remove the blade fastening screw (1) using an A/F 17 spanner (not included in standard equipment). Remove the blade fastening screw (1) together with retaining washer (2). Remove the mowing blade.

Sharpening the mowing blade

Risk of injury!

Always wear safety glasses and gloves when sharpening.

The following points must be observed when re-sharpening mowing blades:

Cool the mowing blade when sharpening, e.g. with water. The blade must not be allowed to display blue colouring, as this would reduce its cutting quality.
- Sharpen blades evenly to prevent vibration due to imbalance.
The cutting angle of 30^ must be observed.
- Observe the wear limits when sharpening.

Risk of injury!

The mowing blade must be replaced if notches or cracks are detected, or if the specifications contained in the section "Checking the wear limits" are exceeded.

Checking the balance of the mowing blade

Insert a screwdriver 1 through the central bore.

When mowing blade (2) is properly balanced, it must balance in the position illustrated.

Risk of injury:

If the mowing blade does not balance, the procedure

"Sharpening the mowing blade" must be repeated until the blade is balanced.

The mowing blade may only be balanced by means of sharpening back or cutting.

Installing the mowing blade

Risk of injury!

Before installing, check the mowing blade for damage (notches or cracks) and wear.

Worn or damaged mowing blades must be replaced.

Replace the retaining washer each time the blade is installed.

Additionally secure the blade fastening screw with Loctite 243.

Observe the specified torque when tightening the blade fastening screw, as the secure attachment of the cutting tool depends on this.

• Install the mowing blade with the curved vanes pointing upwards (towards the mowing deck).

Attach mowing blade (1), screw in blade fastening screw (2) with retaining washer (3) (observe convexity of retaining washer) and tighten to the specified torque.

Blade fastening screw torque:

65-70Nm

14.8 Checking the installation position of the mowing deck

Maintenance interval:

Every 50 operating hours or as required (e.g. following severe impacts to the mowing deck or a poor cut).

Uniform tyre pressure is a prerequisite for checking the correct installation position.

Therefore check the tyre pressure of all the tyres and adjust if necessary before checking the installation position. ( 14.9)

The mowing deck is in the correct installation position when it is slightly lower at the front than the rear.

• Park the machine on level ground.
• Stop the engine. (⇒ 12.3)
• Engage the parking brake. (⇒ 8.10)
• Remove the ignition key and keep it in a safe place.
• Select the lowest cutting level. ( 8.11)

Measure the difference in height A.

A=10mm

14.9 Tyre pressure

i Correct tyre pressure is an important prerequisite for alignment of the mowing deck and consequently for achieving a clean cutting pattern. Moreover, the turf may be damaged by the tyre studs in the case of excessively high tyre pressure.

Remove the cap from valve (1).

• Inflate the tyres to the following tyre pressures using a suitable air pump with pressure gauge.

Front tyres:

0,9-1,2 bar

Rear tyres: 0,7 - 1,0 ba

14.10 Changing the wheels

In the case of damage (holes, cracks, cuts, etc.) to the wheels, remove the damaged wheel and take it to a specialised dealer.

Lifting and supporting the machine

Risk of injury!

Always secure the machine against rolling away before lifting.

Bear in mind the heavy weight of the machine when lifting it (see section "Technical specifications"). ( 21.)

If necessary, raise the machine with the help of a second person or using a jack (not included in the standard equipment).

The brake only acts on the rear wheels, suitable measures against rolling away must therefore additionally be taken when lifting the rear axle.

Avoid damage to the machine!

When supporting, ensure that only the axle or the rear panel of the machine contacts the support. Only lift the machine at suitable components (e.g. frame, bumper, rims, axle). Never lift or support the machine at plastic parts.

• Park the machine on firm and level ground.

• Stop the engine. (⇒ 12.3)

• Engage the parking brake. (⇒ 8.10)
• Remove the ignition key and keep it in a safe place.

Front axle:

A>200mm

Rear axle:

B>120mm

Removing a wheel

Remove the cap (1). Remove the retaining ring (2) using a screwdriver. Pull the large washer (3) together with the wheel (4) off the wheel axle.

When removing the rear wheels, ensure that the couplers (feather keys) are not lost.

Installing a wheel

Before installing the rear wheels, ensure that a coupler (feather key) is located in the groove of the wheel axle on both sides.

The following points must be observed before installing the wheels:

• Remove dirt from the wheel axle.
  Lightly coat the wheel axle with grease before installation.

Insert feather key (5) in the rear wheel axle. Push the wheel (4) with the large washer (3) onto the wheel axle.

Allow retaining ring (2) to engage into the groove on the wheel axle. Fit cap (1) onto the wheel axle.

14.11 Opening and closing the storage compartment

Opening the storage compartment:

• Stop the engine and allow it to cool down. (⇒ 12.3)

• Remove the ignition key and store safely.

• Engage the parking brake. (⇒ 8.10)
  Pull the driver's seat adjustment lever upward and move the driver's seat to the frontmost position (towards steering wheel), or fold it forward.

Remove screws (1) by turning through 90^ anti-clockwise.

Fold storage compartment (2) up and forward (toward driver's seat).

Closing the storage compartment:

Fold the storage compartment closed: Press the screws (2) downward slightly and hold.

Tighten the screws (2) clockwise (approx. 90^ ).

14.12 Engine cover

The engine cover can be folded up in order to perform maintenance and cleaning work on the engine. Sufficient space is available for these operations when the cover is folded up.

Before folding up

• Park the machine on level and solid ground.
• Stop the engine. (⇒ 12.3)
• Remove the ignition key and keep it in a safe place.
• Engage the parking brake. (⇒ 8.10)
• Remove the grass catcher box.
  (⇒ 12.10)

• Remove the discharge chute. (⇒ 14.5)

• Allow the engine to fully cool down.

• Remove the mowing deck. (⇒ 13.1)

Detaching the engine cover

Danger of pinching!

Before detaching the cutting height adjustment rod, ensure that no body parts (hands, fingers, feet, etc.) are positioned directly under the mowing deck.

Remove retaining pin (1) on the right-hand side of rear mowing deck mounting (4). Detach cutting height adjustment rod (3) from rear mowing deck mounting (4).

Loosen screws (5) until they turn freely.

Safeguard against loss!

The screws cannot be removed when unscrewed.

Folding up the engine cover

Risk of injury!

Always fold the cover up fully to the stop so that the catch engages in the frame. This prevents the engine cover from falling shut unintentionally.

Fold engine cover (6) up to the stop.
Ensure that catch (7) engages correctly in the frame.

Closing the engine cover

Danger of pinching!

Ensure that no body parts can be pinched before closing.

Close the cover slowly and carefully.

Push engine cover (6) forward slightly and hold. Release (lift) catch (7) and slowly lower cover (6).

Screw in both bolts (5) and tighten. Torque: 20 - 25 Nm

Insert cutting height adjustment rod (3) into the bore in mowing deck mounting (4). Insert retaining pin (1).

Install the mowing deck. ( 13.2)
Install the discharge chute. ( 14.6)
- Attach the grass catcher box. (⇒ 12.10)

14.13 Checking the engine oil filling level

• Park the machine on a flat, level surface.
• Stop the engine. (⇒ 12.3)
• Engage the parking brake. ( 8.10)
• Allow the engine to cool down.

• Open the storage compartment.
  (14.11)

• Check the filling level as per the engine instruction manual - top up the engine oil if necessary. (⇒ 14.14)

14.14 Changing the engine oil

Danger of burns due to hot engine oil!

Allow the engine to cool down before topping up the engine oil or before changing the oil.

Information regarding the engine oil and oil capacity can be found in the engine instruction manual.

Dispos of used oil in conformance with statutory requirements.

Oil change interval:

The recommended oil change intervals can be found in the engine instruction manual.

Draining the engine oil:

• Stop the engine and allow it to cool down (warm to the touch). (⇒ 12.3)
• Engage the parking brake. (⇒ 8.10)
• Remove the discharge chute. ( 14.5)
• Open the storage compartment.
  (⇒ 14.11)
• Drain the engine oil via the oil drain valve (above the right-hand rear wheel) as per the engine instruction manual.

Topping up engine oil:

• Top up the engine oil as per the engine instruction manual - use a suitable funnel and hose (not included in standard equipment).
• Close the storage compartment ( 14.11) and install the discharge chute. ( 14.6)

14.15 Fuel cock

The flow of fuel in the fuel line is enabled or interrupted by opening or closing the fuel cock. The fuel cock is located behind the left-hand rear wheel.

• Stop the engine. ( 12.3)
• Engage the parking brake. (⇒ 8.10)

The fuel cock (1) is opened and closed by turning control valve (2).

14.16 Removing the steering column cover

• Stop the engine. ( 12.3)
• Engage the parking brake. (⇒ 8.10)
• Remove the ignition key and keep it in a safe place.

Press both retaining lugs (1) inwards slightly and hold. Pull steering column cover (2) downwards and remove.

14.17 Installing the steering column cover

• Stop the engine. ( 12.3)
• Engage the parking brake. (⇒ 8.10)
• Remove the ignition key and keep it in a safe place.

Insert cover (1) into dashboard (2) from below. To do this, first fit the cover in the area of the dashboard and then press it into the final position.

Make sure that guides (3) are correctly positioned inside the black cover and inside the dashboard. The snap-in hooks (4) must engage in wing (5).

14.18 Fuses

Fire hazard!

Never bypass the fuses with wire or foil. Never use a fuse with a value that differs from the specified rating (ampere).

If a new fuse blows within a short time, an electrical fault (e.g. short circuit) is the probable cause. A specialist dealer should be consulted. STIHL recommends STIHL specialist dealers.

• Stop the engine. (⇒ 12.3)

• Engage the parking brake. (⇒ 8.10)

• Remove the ignition key and keep it in a safe place.
• Remove the steering column cover. (⇒ 14.16)

Plug-in fuses:

Nominal current: 10 A

Remove plug-in fuses (1). Visually check whether wire (2) in the plastic is damaged (burnt through).

Replace the fuse if wire (2) is damaged.

Main fuse:

Nominal current: 150 A

Open cover (1) by lightly pressing tabs (2) to the rear.

Visually check whether fuse (3) is damaged (blown).

If necessary have fuse (3) replaced by a specialist dealer. STIHL recommends STIHL specialist dealers.

• Close the cover again.

14.19 Disconnecting and connecting the battery

Risk of injury!

When disconnecting the battery, always remove the black negative (-) cable first and only then, the red positive (+) cable.

When connecting the battery, always connect the red positive (+) cable first.

The battery is maintenance free and must only be replaced if it is damaged or removed in the case of prolonged immobilisation (e.g. winter break).

Remove the battery before disposing of the machine. Do not dispose of the battery with domestic waste, but hand it in to a specialist dealer or at a hazardous waste collection point.

• Stop the engine. (⇒ 12.3)
• Engage the parking brake. (⇒ 8.10)
• Remove the ignition key and keep it in a safe place.
• Remove the steering column cover.
  (⇒ 14.16)

Disconnecting the battery:
Unscrew nut (1) from black connection cable (2) using two spanners (size 8). Remove the bolt, washers, spring washer and nut, remove connection cable (2) from the battery negative (-) terminal.

Detach cap (3). Unscrew nut (4) from red connection cable (5) using two spanners (size 8). Remove the bolt, washers, spring washer and nut, remove connection cable (5) from the battery positive (+) terminal.

• Remove the battery if necessary.
  (⇒ 14.20)

• Reattach bolts, washers, spring washers and nuts to the battery negative (-) and positive (+) terminals for safe keeping.
  Install the steering column cover if necessary. ( 14.17)

Connecting the battery:

• Check the battery voltage before installing the battery. If the minimum voltage is not achieved, fully recharge the battery using a battery charger before installation. Minimum voltage: 11.5 V
  Install the battery. ( 14.20)
  If necessary, remove the bolt, washer and nut from the battery.

Fire hazard!

Always observe the specified torque. Make sure that the connection cable is mounted at right angles to the positive terminal of the battery and that the screw connections on the terminals are always tightened to prevent damage due to sparking.

Attach the terminal connector of red connection cable (4) at right angles to the battery positive (+) terminal. Tighten the connection cable with bolt (5), washers (6), spring washer (8) and nut (7) using two spanners (size 8). Torque: 6 - 8 Nm

Fire hazard!

Make sure that the connection cable is attached at right angles to the positive terminal of the battery. The cover cap must completely cover the contact area to avoid damage due to sparking.

Fit cover cap (3) over contact area (A).

Attach the terminal connector of black connection cable (2) to the battery negative (-) terminal. Tighten the connection cable with bolt (5), washers (6), spring washer (8) and nut (7) using two spanners (size 8). Torque: 6 - 8 Nm

14.20 Removing and installing the battery

Removing the battery:

• Remove the steering column cover.
  (⇒ 14.16)
• Disconnect the battery. ( 14.19)

Release retaining clasp (1) and remove battery (2).

• Insert the retaining clasp.
  Install the steering column cover. ( 14.17)

Installing the battery:

• Remove the steering column cover.
  (⇒ 14.16)

Insert battery (1) and insert retaining clasp (2).

Connect the battery. (14.19)
Install the steering column cover. ( 14.17)

14.21 Charging the battery

Risk of injury!

In order to charge the battery using another charging system, the battery must be removed. The specifications on the battery supplementary sheet and on the charger must be observed.

• Stop the engine. (12.3)
• Remove the ignition key and keep it in a safe place.
• Remove the battery ( 14.20) and charge using a suitable charging system.

14.22 Lubrication

Lubricate the two front steering knuckles via the two grease nipples on the front axle using commercially available grease.

Lubricating:

• Stop the engine. (⇒ 12.3)
• Remove the ignition key and keep it in a safe place.
• Engage the parking brake. (⇒ 8.10)
• Unload the front axle by supporting (lifting) it. ( 14.10)
  Clean the grease nipple.

Using a grease gun (not included in standard equipment), inject grease on both sides via grease nipples (1) until small amounts of grease escape from the steering knuckles.

• Remove escaping lubricating grease.
• Remove support for the front axle.

14.23 Combustion engine

Observe the operating and maintenance instructions contained in the attached engine instruction manual.

To achieve a long service life, it is always particularly important to maintain a sufficient level of oil and to change the engine oil and air filter regularly.

14.24 Gearbox

For the user, the gearbox is maintenance-free.

During the inspections of the machine by the specialist dealer, the required maintenance operations are performed on the gearbox.

14.25 Storage

• Store the machine in a dry and dust-free room out of reach of children and unauthorised persons.
• Any machine faults must be remedied prior to storage in order to maintain a safe operating condition.
• Close the fuel cock. (⇒ 14.15)
• Remove the ignition key and keep in a place where no unauthorised persons, especially children, can access it.

14.26 Extended periods of inoperation (e.g. winter break)

• Carefully clean all external parts of the engine and machine, in particular the cooling ribs.
• Thoroughly lubricate/grease all moving parts.
• Remove the fuel from the fuel tank and carburettor (e.g. by running empty).
• Engage the parking brake. (⇒ 8.10)
• Observe the information in the engine instruction manual.
  Perform an engine oil change (engine instruction manual). ( 14.14)
• Disconnect the battery. ( 14.19)
• Store the battery safely in fully-charged condition, in a cool and dry room.

14.27 Following storage for extended periods (e.g. over winter)

• Check the battery voltage. If the minimum voltage is not achieved, fully recharge the battery using a battery charger before installation. Minimum voltage: 11.5 V
• Insert and connect the battery.
  (⇒ 14.20)
• Check the tyre pressures. (⇒ 14.9)
• Check the fuel level and top up if necessary.
  Perform an engine oil change if necessary. ( 14.14)
• Check the engine oil level and top up if necessary. (⇒ 14.13)

15. Transport

Risk of injury!

Before transporting, carefully read and observe the section "For your safety", in particular the subsection "Transporting the ride-on mower". ( 4.) ( 4.3)

Drive slowly and with particular caution on loading ramps, ensuring that the wheels do not drive over the edges of the loading ramps - danger of falling!

Do not change speed or direction abruptly.

On public roads, the machine may only be transported by means of a suitable vehicle or trailer. Do not tow!

Before loading, select the highest cutting level. ( 12.6)

• Support the trailer at the front so that it cannot tilt up due to the weight of the machine.
• Use a suitable lifter or suitable and stable loading ramps of sufficient width for loading the machine.
• Position the loading ramps safely and secure - observe the wheel base and track width of the ride-on mower. ( 21.)
• Ensure an even distribution of the load on trailers.
  After loading, select the lowest cutting level. ( 12.6)
• Stop the engine. (⇒ 12.3)
• Push the machine fully forward until the bumper contacts the front wall of the trailer or vehicle.
• Engage the parking brake. (⇒ 8.10)
• Close the fuel cock. (⇒ 14.15)
• Fasten the front bumper of the machine to the front wall of the trailer or vehicle using suitable fastening material (straps, ropes, etc.), apply forward tension and secure.
• Place additional wedges (not included in standard equipment) at the wheels to prevent the machine from inadvertently rolling away.

16. Standard spare parts

Mowing blade:

61407020100

Blade fastening screw:

90103452430

Spring washer:

00007026600

The fastening elements for the mowing blade (e.g. blade fastening screw) must be replaced when replacing the blade, i.e. when installing the blade. Spare parts are available from a STIHL specialist dealer.

17. Accessories

Additional accessories are available for the machine.

Further information is available from your STIHL specialist dealer, on the internet (www.stihl.com) or in the STIHL catalogue.

For safety reasons, only accessories approved by STIHL may be used with the machine.

18. Environmental protection

Lawn clippings should be composted and not disposed of in household waste.

The machine, its packaging and accessories are all produced from recyclable materials and must be disposed of accordingly.

By disposing of materials separately and in an environmentally friendly manner, recyclable waste can be re-used. For this reason, the machine should be disposed of for recycling at the end of its useful life. Improper disposal may be harmful to health and pollute the environment.

Waste products such as used oil (engine oil, gearbox oil), fuel and batteries must always be disposed of properly. Observe

local regulations.

Remove the battery before disposing of the machine.

Do not dispose of the battery with domestic waste, but hand it in to a specialist dealer or at a hazardous waste collection point.

Consult your recycling centre or your specialist dealer for information on the proper disposal of waste products. STIHL recommends STIHL specialist dealers.

19. Minimising wear and preventing damage

Important information on maintenance and care of the product group

lawn mower with driver's seat and combustion engine (STIHL RT)

STIHL assumes no liability for material or personal damage caused by the non-observance of information contained in the operating instructions, in particular with regard to safety, operation and maintenance, or which arise through the use of unauthorised attachment or spare parts.

Please always observe the following important information for the prevention of damage or excessive wear to your STIHL machine:

1. Wearing parts

Some parts of the STIHL machine are subject to normal wear even when used properly and must be replaced in due time depending on type and duration of use.

These include:

• Mowing blade

• Grass catcher box

-V-belt
-Ba t t e r y
- Tyres , rollers
- Spark plugs

2. Compliance with the information in this instruction manual

The STIHL machine must be used, maintained and stored with the care described in this instruction manual. Any damage caused by non-compliance with the safety, operating and maintenance instructions is the sole responsibility of the user.

This applies in particular to:

• Improper use of the product.

• Use of fuel and lubricants not approved by STIHL (lubricants, petrol and engine oil, see engine manufacturer's specifications).

• Product modifications not approved by STIHL.
• Use of tools or accessories which are not approved or suitable for the machine, or are of inferior quality.
• Use of the product for sporting or competitive events.
• Resultant damage due to continued use of the product with defective components.

3. Maintenance operations

All operations listed in the section "Maintenance" must be performed regularly.

If these maintenance operations cannot be carried out by the user, a specialist dealer must be commissioned to perform them.

STIHL recommends that you have maintenance operations and repairs performed exclusively by a STIHL specialist dealer.

STIHL specialist dealers regularly attend training courses and are provided with technical information.

If these operations are neglected, faults may arise which are the responsibility of the user.

These include:

Corrosive and other resultant damage caused by incorrect storage.
- Damage to the machine through the use of inferior-quality spare parts.
- Damage due to untimely or inadequate maintenance or damage due to maintenance or repair work not performed in the workshops of specialist dealers.

20. Declaration of conformity

20.1 EU declaration of conformity - STIHL RT 4082.1 ride-on mower

STIHL Tirol GmbH

Hans Peter Stihl-Strasse 5

6336 Langkampfen

Austria

declares under our sole responsibility that

-design:ride-onmower
- manufacturer's brand: STIHL
-type:RT4082.1
-cutting width:80 cm
serial number: 6140

complies with the relevant provisions of Directives 2000/14/EC, 2006/42/EC, 2014/30/EU and 2011/65/EU and has been developed and manufactured in accordance with the versions of the following standards valid on the date of manufacture: EN ISO 14982, EN ISO 5395-1 and EN ISO 5395-3.

Notified body involved:
TÜV Rheinland LGA Products GmbH
Tillystrasse 2
90431 Nuremberg, Germany

The measured and guaranteed sound power levels were determined in accordance with Directive 2000/14/EC, Appendix VIII.

RT 4082.1

• Measured sound power level: 99.7 dB(A)
  Guaranteed sound power level: 100 dB(A)

The technical documents are stored at STIHL Tirol GmbH.

The year of manufacture and machine number are indicated on the ride-on mower.

Langkampfen, 02.06.2021

STIHL Tirol GmbH

p.p.

Matthias Fleischer, Head of Research and Development Division

p.p.

Sven Zimmermann, Head of Quality Division

20.2 UKCA-Declaration of Conformity STIHL RT 4082.1 Ride-On Mower

STIHL Tirol GmbH

Hans Peter Stihl-Strasse 5

6336 Langkampfen

Austria

declares under our sole responsibility that

-design:ride-onmower
manufacturer's brand: STIHL
-type:RT4082.1
- cutting width: 80 cm
- serial number: 6140

complies with the relevant provisions of UK Regulations Noise Emission in the Environment by Equipment for use Outdoors Regulations 2001, Supply of Machinery (Safety) Regulations 2008, Electromagnetic Compatibility Regulations 2016 and The Restriction of the Use of Certain Hazardous Substances in Electrical and Electronic Equipment Regulations 2012 and has been developed and manufactured in accordance with the versions of the following standards valid on the date of manufacture: EN ISO 14982, EN ISO 5395-1 and EN ISO 5395-3.

The measured and guaranteed sound power levels were determined in accordance with the Noise Emission in the Environment by Equipment for use Outdoors Regulations 2001, Schedule 11.

Approved Body involved: TUV Rheinland UK LTD 1011 Stratford Road Solihull, B90 4BN

RT 4082.1

• Measured sound power level: 99.7 dB(A)
  Guaranteed sound power level: 100 dB(A)

The technical documents are stored at STIHL Tirol GmbH.

The year of manufacture and machine number are indicated on the ride-on mower.

Langkampfen, 01.07.2022

STIHL Tirol GmbH

p.p.

Matthias Fleischer, Vice President Product Development

p.p.

Sven Zimmermann, Head of Quality Division

21. Technical specifications

Type RT 4082.1

Serial number 6140

Engine, design 4-stroke combustion engine

Engine,typeEVC4000

Displacement 452 cc

Nominal output at

nominal speed 8,2 kW - rpm

Output speed 2700 rpm

Fuel tank 61

Starter Electric start/ignition key

Battery type Lead/gel Rated voltage 12V

Blade fastening screw torque 65-70 Nm Self-propulsion, Infinitely variable rear wheels forward and reverse

Fuel cock Yes Front wheels 13x

Tyre pressure, front wheels 0,9 - 1,2 bar

Rear wheels 16x6.50-8

Tyre pressure, rear wheels 0,7 - 1,0 bar

Cutting width 80 cm

Cutting height 35 - 90 mm

Grass catcher box capacity 250 I

Measurement in accordance with 2000/14/EC / S.l. 2001/1701:

Guaranteed sound

power level L_WAd 100 dB(A)

Measurement in accordance with EN ISO 5395-3:

Sound pressure level

at workplace L_pA 86 dB(A)

Uncertainty K_pA 2 dB(A)

Measurement in accordance with EN ISO 5395-3, EN 1032:

Vibration at seat

(whole-body accelerator

ation)aw 0,60 m/s2

Measurement in accordance with EN ISO 5395-3, EN 20643:

Vibration at

steering wheel a_hw 3,00 m/s²

Uncertainty Khw 1,5 m/s2

Specified vibration characteristic in accordance with EN 12096

Weight with mowing deck and empty

grass catcher box 204 kg

21.1 Dimensions

A=87cm

B=90cm

C=1 1 4 cm

D=177cm

E=213cm

F=110cm

G=117cm

21.2 REACH

REACH is an EC Directive for the registration, evaluation, authorisation and restriction of chemicals.

Information on compliance with the REACH Directive (EC) No. 1907/2006 is available from www.stihl.com/reach.

22. Troubleshooting

If necessary, contact a specialist dealer; STIHL recommends STIHL specialist dealers.

See engine instruction manual.

Fault:

Starter turns, engine does not start.

Possible cause:

• Throttle lever set to the MIN position.
• Choke position (throttle lever) not selected.
• No fuel in tank.
  -Fuel cock closed.
• Insufficient flow of fuel.
• Spark plug dirty or damaged.
• Incorrect electrode gap.
• Spark plug socket detached from spark plug.
• Engine flooded due to several starting attempts.
  Clogged air filter.
  Battery almost discharged.

Remedy:

• Set throttle lever to the choke or MAX position. ( 8.2)
• Set throttle lever to the choke position. ( 8.2)
• Refill fuel tank.
  -Open fuel cock. ( 14.15)
• Check fuel filter. (1)
• Clean or replace spark plug. (II)
• Adjust electrode gap. (X)

• Connect spark plug socket; check connection between ignition lead and socket. (X)

• Remove spark plug and dry; set throttle lever to MIN position and start several times with spark plug removed; screw in spark plug and connect spark plug socket. (M)

• Clean air filter. (II)
• Check charge state of battery and charge battery if necessary.

Fault:

Starter not functioning.

Possible cause:

• The safety devices are blocking the starter.
  Battery not or incorrectly connected.
• Battery completely discharged or not sufficiently charged.
• Main fuse (150 A) defective.
  -Faulty earth connection to engine or chassis.
• Starter defective.

Remedy:

• Check all the safety devices. (⇒ 11.)
• Check battery connections. (⇒ 14.19)
• Charge the battery. ( 14.21)
  -Replace the main fuse. (长)
• Check the connection cables at the battery and at the chassis. (X)
• Repair the starter. (x)

Fault:

Starting problems or deteriorating engine power.

Possible cause:

Water in fuel tank and carburettor; carburettor is blocked.
- Contaminated fuel tank.
The air filter is dirty.
- Dirty spark plug.

• Mowing grass which is too long or too wet.

Remedy:

• Empty fuel tank, clean fuel tank, fuel line and carburettor. (X)
• Clean fuel tank. (x)
• Clean/replace air filter. (11)
  Clean spark plug. (1)
• Adapt cutting level and driving speed to the mowing conditions.

Fault:

Engine overheating.

Possible cause:

• Dirty cooling ribs.
• Engine oil level too low.
  V-belt worn.

Remedy:

• Clean cooling ribs. (1)
• Check the engine oil level and top up the engine oil if necessary. (⇒ 14.13)
  -Replace the V-belt. ()

Fault:

Machine does not drive.

Possible cause:

Gearbox disengaged.
-V-belt (gearbox) detached.
V-belt (gearbox) worn or defective.
- Missing feather key between rear axle and rear wheels.

Remedy:

• Engage the gearbox (freewheel lever).
  (⇒ 8.14)
  -Fit V-belt (gearbox). (空)
  -ReplaceV-belt(gearbox). (长)
• Install feather key. (⇒ 14.10)

Fault:

Excessive vibration during operation.

Possible cause:

• Mowing blade imbalance due to incorrect sharpening or damage.
• Blade fastening screw not fastened tightly.
  Engine mounting not securely tightened.
  V-belt damaged.
• Discharge chute blocked.

Remedy:

• Re-sharpen mowing blade and balance or replace mowing blade. (⇒ 14.7)
• Tighten blade fastening screw to the specified torque. ( 14.7)
• Tighten engine mounting. (x)
  -ReplaceV-belt. ()
• Clean discharge chute. (x)

Fault:

Poor cut, lawn turns yellow after mowing.

Possible cause:

• Mowing blade blunt or worn.
• Driving speed too fast in relation to mowing conditions (cutting height, lawn condition).
  Maximum engine speed not set (throttle lever not in MAX position).
• Mowing deck adjustment not OK.
• Discharge chute blocked.
• Mowing deck soiled with grass residues (deposits on inside of mowing deck housing).

Remedy:

• Sharpen or replace mowing blade (observe wear limits). ( 14.7)
• Reduce driving speed and select a higher cutting height.

• Set throttle lever to the MAX position. ( 8.2)

• Check mowing deck adjustment and readjust mowing deck if necessary. ( 14.8)

• Remove grass catcher box and free discharge chute from grass residues.
• Clean inside of mowing deck.

Fault:

Discharge chute blocked.

Possible cause:

• Mowing blade wing worn or damaged.
• Mowing grass which is too long or too wet.
• Driving speed too high in relation to set cutting height.
  Maximum engine speed not set (throttle lever not in MAX position).
• Level sensor adjusted incorrectly.

Remedy:

-Replace mowing blade. ( 14.7)
Mow lawn in two stages: 1. Mowing at highest cutting level.

1. Mowing at desired cutting height.

2. Reduce driving speed and select a higher cutting height.

3. Set throttle lever to the MAX position. ( 8.2)
4. Adjust level sensor (pull slide out fully). ( 8.15)

Fault:

Grass catcher box not being completely filled.

Possible cause:

• Level sensor incorrectly adjusted.
• Cutting height set too low.
• Grass is excessively damp and consequently too heavy to be transported through the discharge chute in the grass catcher box.
• Mowing blade is blunt or worn.
• Grass is too high.

Air holes in the grass catcher box blocked (no air flow in grass catcher box).
- Discharge chute or mowing deck (inside) soiled through deposited grass residues (residue from last mowing operation).

Remedy:

• Adjust level sensor. (⇒ 8.15)
• Set a higher cutting height.
• Wait until the lawn is dry.

• Sharpen or replace the mowing blade. ( 14.7)
  Mow the lawn in two stages:

• Mowing at the highest cutting level,

• Mowing at the desired cutting height.

• Clean the grass catcher box (clean air holes).

• Clean discharge chute or inside of mowing deck.

Fault:

Level sensor (grass catcher box) does not respond properly.

Possible cause:

• Level sensor (grass catcher box) soiled through grass residues.
• Level sensor (grass catcher box) incorrectly adjusted.
• Driving speed too high.

Remedy:

• Clean the level sensor and check for ease of movement.
• Adjust level sensor (grass catcher box). ( 8.15)
• Adapt driving speed to the mowing conditions (reduce driving speed).

Fault:

Mowing blade does not switch on/does not turn.

Possible cause:

• The safety devices are preventing activation of the mowing blade.
  -V-belt (mowing deck) worn, detached or defective.

Remedy:

• Check whether all the safety requirements for activation of the mowing blade are met. (⇒ 11.)
• Check V-belt (mowing deck) and replace if necessary. (#)

Fault:

Engine cuts out when mowing deck activated.

Possible cause:

• User not sitting or not properly positioned on driver's seat.
• Seat switch or wiring defective.
• Grass catcher box switch not actuated or defective.

Remedy:

• Sit on driver's seat or change seat position.
• Repair/replace seat switch or wiring. (X)
• Install grass catcher box or deflector (not included in standard equipment), or repair/replace grass catcher box switch.

Fault:

Mowing deck disengaged when mowing in reverse driving direction.

Possible cause:

• Reverse mowing safety switch not pressed.

Remedy:

• Release the mowing blades within the time window (5 seconds before to 1 second after engaging the mowing deck or changing the driving direction). ( 8.4)

Fault:

Engine cuts out when user leaves driver's seat.

Possible cause:

• Parking brake not engaged.
• Mowing deck engaged (safety device).

Remedy:

• Engage the parking brake before leaving the driver's seat. (⇒ 8.10)
• Disengage the mowing deck before leaving the driver's seat. (⇒ 8.3)

Fault:

Three acoustic signals sound in quick succession.

Possible cause:

-Fault in seat switch or electrics (short circuit).

Remedy:

Turn ignition key to "engine off" position, carry out self-diagnosis. ( 9.1)

Fault:

Continuous tone sounding.

Possible cause:

• Grass catcher box full.
• Electronics fault.
  Battery connected with incorrect polarity.

Remedy:

• Disengage the mowing deck and empty the grass catcher box. ( 12.9)
• Turn the ignition key to the "engine off" position, carry out self-diagnosis. ( 9.1)
• Check the polarity of the battery connections, connect wiring correctly if necessary. ( 14.19)

23. Service schedule

23.1 Handover confirmation

23.2 Service confirmation

Please hand this instruction manual to your STIHL specialist dealer in the case of maintenance operations. He will confirm the service operations performed in the pre-printed boxes.

Service performed on

Next service date

Chere cliente, cher client,

2000/14/EC / S.I. 2001/1701:

Niveau de puis

sanceacoustique

garanti LwAd 100 dB(A)

Incertitude KwA 0,7 dB(A)

Meting conform 2000/14/EC / S.I. 2001/1701:

Gegarandeerd

geluidsniveau LwAd 100 dB(A)

Meting conform EN ISO 5395-3:

Geluidsdrukniveau

opwerkplek L_pA 86 dB(A)

Onzekerheid K_pA 2 dB(A)

Misurazione conforme a 2000/14/EC / S.I. 2001/1701:

Livello di potenza

sonora garantito

LwAd

100 dB(A)

Acoplar a transmissao