USER MANUAL MB 248 T VIKING
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Exterior view of a grass lawn mower (no signage or text visible)
MB 248.1 MB 248.1 T
DE Gebrauchsanleitung
EN Instruction manual
FR Manuel d'utilisation
NL Gebruiksaanwijzing
IT Istruzioni per l'uso
ES Manual de instrucciones
PT Manual de utilização
NO Bruksanvisning
SV Bruksanvisning
FI Käyttöopas
DA Betjeningsvejledning
SK Návod na obsluhu
CS Návod k použití
EL Οδηγίες χρήσης
B
INT 1
www.viking-garden.com
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2
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12
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Line drawing of a lawn mower with visible blades and wheels (no text or symbols)
97/68/EC, 2000/14/EC, 2004/108/EC,
2006/42/EC
Thank you for choosing a VIKING quality product.
This product has been produced using state-of-the-art production methods and extensive quality assurance procedures, because our goal is only achieved if you, the customer, are satisfied with your machine.
If you have any questions concerning your machine, please contact your dealer or our sales agency directly.
I hope that your VIKING machine will give you great enjoyment.
Dr. Peter Pretzsch
Management
1. Table of contents
Notes on the instruction manual 30
General 30
Instructions for reading the
instruction manual 30
Machine overview 31
For your safety 31
General 31
Refilling the tank – handling petrol 32
Clothing and equipment 32
Transporting the machine 33
Before operation 33
Working with your machine 33
Maintenance and repairs 35
Storage for prolonged periods
without operation 36
Disposal 36
Description of symbols 37
Standard equipment 37
Preparing the machine for operation 38
General 38
Assembling the handlebar 38
Attaching and detaching the recoil starter rope 38
Folding down the upper handlebar 38
Assembling the grass catcher bag 39
Removing and attaching the grass catcher bag 39
Central cutting height adjustment 39
Fuel and engine oil 40
Safety devices 40
Motorstop lever 40
Notes on working with the machine 40
Initial operation of the machine 41
Starting the engine 41
Stopping the engine 41
Self-propulsion lever (MB 248 T) 41
Emptying the grass catcher bag 41
Maintenance 41
General 41
Cleaning the machine 41
Engine 42
Checking the mowing blade wear limit 42
Maintaining the mowing blade 42
Storage (winter break) 43
Transport 43
Transporting 43
Environmental protection 44
Minimising wear and preventing damage 44
Standard spare parts 45
Technical specifications 46
Troubleshooting 47
Service schedule 48
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.
VIKING 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.
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: ( 2.1)
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.
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 Upper handlebar
2 Recoil starter rope
3 Rotary handle
4 Lower handlebar
5 Rear wheel
6 Cutting height adjustment
7 Primer
8 Housing
9 Front wheel
10 Spark plug socket
11 Engine
12 Discharge flap
13 Grass catcher bag (fabric)
14 Self-propulsion lever (MB 248 T)
15 Motorstop lever
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.
Make sure that you are familiar with the controls and use of the machine.
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.
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.
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.
Never allow children under the age of 16 to use the machine. Local regulations may specify a minimum age for users.
This machine is not suitable for use by persons (in particular children) with impaired physical, sensory or mental faculties or those lacking the appropriate experience and/or knowledge, unless supervised by a person responsible for their safety or having received instructions on use of the machine from such person. Children must be supervised, in order to ensure that they do not play with the machine.
The machine is intended for private use.
Caution – risk of accident!
The lawn mower is only intended for mowing lawns. Its use for other purposes is not permitted and may be dangerous or result in damage to the machine.
Due to the physical danger to the user, the lawn mower must not be used for the following applications (incomplete list):
For safety reasons, any modification to the machine, except the proper installation of accessories approved by VIKING is forbidden and results in voiding of the warranty cover. Information regarding approved accessories can be obtained from your VIKING specialist dealer.
In particular, any tampering with the machine which increases the power output or speed of the engine or motor is forbidden.
It is not permitted to transport objects, animals or persons, particularly children, on the machine.
Particular care is required during use in public green spaces, parks, sports fields, along roads and in agricultural and forestry businesses.
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.
4.2 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.
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.
Keep petrol away from sparks, naked flames, pilot lights, heat sources, and other ignition sources. Do not smoke!
Re-fill the tank out-of-doors and do not smoke during re-filling.
Before refilling the tank, stop the engine and allow it to cool.
Re-filling 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 re-filled with petrol.
Do not fill fuel tank completely, but fill to approx. 4 cm below the edge of the filler neck so that the fuel has room to expand. 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.
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.
If it is necessary to drain the tank, this must be done out of doors.
4.3 Clothing and equipment
Always wear sturdy footwear with high-grip soles when working. Never work barefoot ample, in sandals.
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.
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.
4.4 Transporting the machine
Always wear gloves in order to prevent injuries due to sharp-edged and hot components.
Do not transport the machine with the engine running. Switch off the engine, let the blades come to a standstill and remove the spark plug socket prior to transport.
Only transport the machine once the engine has cooled down and with an empty fuel tank.
Use suitable loading aids (loading ramps, lifters).
Secure the machine and any machine components being transported (e.g. grass catcher box) on the load floor using fastening material of adequate size (belts, ropes etc.).
Avoid contact with the mowing blade when lifting and carrying the machine.
Observe the information in the section "Transport". It describes how to lift and lash the machine. ( 12.)
When transporting the machine, always observe regional legislation, especially regarding load security and the transport of objects on load floors.
4.5 Before operation
Make sure that only persons who are familiar with the instruction manual are permitted to use the machine.
Observe the local regulations regarding permitted operating times for gardening power tools with combustion engines or electric motors.
Carefully inspect the complete area on which the machine is to be used and remove any stones, sticks, wires, bones and other foreign objects which 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) which are hidden in the lawn and cannot be removed before commencing work with the machine.
Defective mufflers and all other worn or damaged parts must be removed before use of the machine. Replace any illegible or damaged danger signs and warnings on the machine. Your VIKING specialist has a supply of replacement stickers and all the other spare parts.
The machine must only be used in good operating condition. Before each use, check whether:
– The machine is properly assembled.
- The cutting tool and the entire cutting unit (mowing blade, fastening attachments, mowing deck housing) are in good condition. In particular check for secure fastening, damage (notches or cracks) and wear. (⇒ 11.5)
- The tank cap is properly attached.
– The tank and fuel-carrying parts as well as the tank cap are in good condition.
- The safety devices (e.g. motorstop lever, discharge flap, housing, handlebar, protective grille) are in good condition and working properly.
- The grass catcher box is undamaged and correctly installed; a damaged grass catcher box must not be used.
- The oil closure screw is properly attached.
Carry out any necessary work or consult a specialist dealer. VIKING recommends VIKING specialist dealers.
4.6 Working with your machine
Never work when animals or persons, particularly children, are in the danger area.
The switch and safety devices installed in the machine must not be removed or bypassed. In particular, never secure the motorstop lever to the handlebar (e.g. by tying it).
Caution – risk of injury!
Never put hands or feet on or underneath rotating parts.
Never touch the rotating blade.
Always keep away from the discharge opening.
Always observe the safety distance provided by the handlebar. The handlebar must always be installed correctly and must not be modified. Never operate the machine with the handlebar folded down.
Never attach any objects to the handlebar (e.g. work clothing).
Only work during the day or with good artificial light.
Do not operate the machine in the rain or during thunder storms, particularly when there is a risk of lightning strike.
The risk of accidents is higher if the ground is damp due to increased danger of slipping.
Particular caution should be exercised
during working in order to prevent slipping. If possible, avoid using the machine when the ground is damp.
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.
Starting:
Exercise care when starting and observe the instructions contained in the section "Initial operation of machine". ( 10.)
The machine must not be tilted during start-up.
The self-propulsion lever must not be pressed when starting the engine.
Do not start the engine if the discharge chute is not covered by the discharge flap or the grass catcher box.
Working on slopes:
Always work across and back on slopes, never up and down.
If the user loses control when mowing up and down, there is a risk of being run over by the machine.
Be particularly careful when changing direction on a slope.
Always ensure good stability on slopes and avoid mowing on excessively steep slopes.
For safety reasons, the machine must not be used on slopes with an inclination of more than 25^ (46.6 %). Risk of injury! A slope inclination of 25^ corresponds to a vertical height increase of 46.6 cm for a 100 cm horizontal distance.
In order to ensure an adequate oil supply for the engine, the information in the accompanying engine instruction manual must be additionally observed when using the machine on slopes.
Working:
Risk of injury:
Never place your hands or feet above, underneath or on rotating parts.
Do not attempt to examine the blade while the lawn mower is operating. Never open the flap and/or remove the grass ox when the mowing blade is Rotating blades can cause injury.
Only operate the machine at walking speed – never run when working with the machine. Working quickly with the machine increases the risk of injury due to stumbling, slipping, etc.
Be particularly careful when turning the machine around or pulling it towards you. Risk of stumbling!
Objects hidden in the grass (lawn sprinkler systems, posts, water valves, foundations, electrical wires, etc.) must be avoided. Never intentionally run over any such foreign objects.
Beware of the cutting tool running on for several seconds before coming to a standstill.
STOP
Stop the engine, allow the work tool to come to a complete
standstill and detach the spark plug socket
– before leaving the machine unattended
– before re-filling the tank. Allow the engine to cool down before re-filling the tank.
Fire hazard!
– before remedying blockages, including those in the discharge chute,
– before lifting or carrying the machine
– before transporting the machine
– before carrying out any work on the mowing blade,
– before checking or cleaning the machine or before carrying out any other work (e.g. folding down the handlebar) on it,
– after hitting a foreign object or if the lawn mower begins to vibrate excessively. In these cases check the machine, in particular the cutting unit (blade, blade shaft, blade fastening) for damage and carry out the necessary repairs before restarting and working with the machine.
Risk of injury!
Strong vibrations are generally an indication of a fault.
In particular, the lawn mower must not be operated with a damaged or bent crankshaft or mowing blade. If you do not have the appropriate expertise, have the necessary repairs carried out by a specialist dealer (VIKING recommends VIKING specialist dealers).
Switch off the engine
- when pushing the machine to and from the area to be mowed,
– before pushing the machine onto an area not covered with grass,
– before opening the discharge flap or removing the grass catcher bag,
- when the machine has to be tilted for transportation,
– before the handlebar is folded down.
4.7 Maintenance and repairs
Before beginning cleaning, adjustment, repair and maintenance operations, park the machine on firm, level
ground, stop the engine, allow it to cool down and detach the spark plug socket.
Risk of injury due to the mowing blade!
Pulling the recoil starter rope starts the work tool rotating. Always ensure sufficient distance between the mowing blade and your body, particularly your hands and feet, when you pull the recoil starter rope.
Allow the machine to cool down before working on or around the engine, exhaust manifold or muffler in particular. Temperatures of 80^ C and above can be reached. Danger of burns:
Direct contact with engine oil can be dangerous. Engine oil must not be spilled. VIKING recommends leaving the task of topping up engine oil or performing engine oil changes to a VIKING specialist dealer.
Cleaning:
The complete machine must be cleaned thoroughly following use. ( 11.2)
Empty the fuel tank (e.g. by running it empty) before placing the machine in the cleaning position.
Remove accumulated clipping deposits using a stick. Clean the underside of the mower with water and a brush.
Never use high-pressure cleaners and do not clean the machine under running water (e.g. using a garden hose).
Do not use aggressive cleaning agents. These can damage plastics and metals, impairing the safe operation of your VIKING machine.
In order to prevent fire hazards, keep the area around the air vents, cooling ribs and the area of the exhaust free from e.g. grass, straw, moss, leaves or escaping grease.
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.
VIKING recommends that you have maintenance operations and repairs performed exclusively by a VIKING specialist dealer.
VIKING specialist dealers regularly attend training courses and are provided with technical information.
Only use tools, accessories or attachments approved for this machine by VIKING 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 VIKING tools, accessories and spare parts are optimally adapted to the machine and the
user's requirements. Genuine VIKING spare parts can be recognised by the VIKING spare parts number, by the VIKING lettering and, if present, by the VIKING spare parts symbol. On smaller parts, only the symbol may be present.
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 (VIKING recommends VIKING specialist dealers).
Always keep warning and information stickers clean and readable. Damaged or missing stickers must be replaced by new, original plates from your VIKING specialist dealer. If a component is replaced with a new component, ensure that the new component is provided with the same stickers.
Only perform work on the cutting unit when wearing thick work gloves and exercising extreme care.
Ensure that all nuts, pins and screws (in particular the blade fastening screw) are securely tightened so that the machine is in a safe operating condition.
Check the complete machine and the grass catcher box for wear or damage on a regular basis, particularly before extended periods when the machine is not in use (e.g. over winter). For safety reasons, worn or damaged parts must be replaced immediately to ensure that the machine is always in a safe operating condition.
Never alter the basic setting of the engine or run at excessive engine speeds.
Components or guards that are removed for maintenance operations must be properly reinstalled immediately.
4.8 Storage for prolonged periods without operation
Allow the engine to cool before storing the machine in an enclosed space.
Store the machine with empty fuel tank and the fuel reserve in a lockable and well-ventilated room.
Ensure that the machine is protected from unauthorised use (e.g. by children).
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.
If the tank has to be emptied (e.g. to store the machine before the winter break), this should only be done out of doors (e.g. by running the tank empty).
Thoroughly clean the machine before storage (e.g. winter break).
Only store the machine with the spark plug socket disconnected.
Store the machine in good operational condition.
4.9 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. VIKING recommends VIKING specialist dealers.
Ensure that old machines are properly disposed of. Render the machine unusable prior to disposal. In order to prevent accidents, remove the ignition lead, empty the fuel tank and drain the engine oil in particular.
Risk of injury due to the mowing blade! Always store an old lawn 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.
5. Description of symbols
Caution!
Read the instruction manual before initial use.
Risk of injury!
Keep other persons out of the danger area.
Risk of injury!
Detach the spark plug socket before performing work on the cutting tool or maintenance and cleaning work.
Risk of injury!
Cutting tool runs on for several seconds after switching off (engine/blade brake).
MB 248 T:
Switch on self-propulsion.
MB 248 T:
Start engine.
MB 248 T:
Stop the engine.
6. Standard equipment
Item Designation Qty.
A Basic unit 1
B Grass catcher bag fabric 1
C Grass catcher bag frame 1
D Rotary handle 2
E Flat head bolt 2
F Cable guide 1
• Instruction manual 1
• Engine instruction manual 1
7. Preparing the machine for operation
7.1 General
Risk of injury!
Observe the safety instructions in the section "For your safety" ( 4.).
- Place the machine on level and firm ground when performing all the operations described.
7.2 Assembling the handlebar
Danger of pinching!
Hold the upper handlebar (1) with one hand at its highest point when you screw in the two rotary handles (D).
- Insert a flat head bolt (E) through the cable guide (F).
- Attach the cable guide (F) to the motorstop cable (2).
- MB 248 T:
Attach the cable guide (F) to the self-propulsion cable (3).
- Fold the upper handlebar (1) upwards and fit onto both lower handlebar sections (4).
Insert a flat head bolt (E) – on left with cable guide (F), on right without – through bores from the inside to the outside and tighten with rotary handles (D).
7.3 Attaching and detaching the recoil starter rope
Attaching:
- Detach the spark plug socket from the engine.
- Press the motorstop lever (1) to the handlebar and hold.
- Slowly pull out the recoil starter rope (2) and attach it to the rope holder (3).
- Slowly release the recoil starter rope (2) and motorstop lever (1).
- Connect the spark plug socket.
Detaching:
- Detach the spark plug socket from the engine.
- Press the motorstop lever (1) to the handlebar and hold.
- Slowly pull out the recoil starter rope (2) and detach it from the rope guide (3).
- Slowly return the recoil starter rope (2) and release the motorstop lever (1).
- Connect the spark plug socket.
7.4 Folding down the upper handlebar
The upper handlebar (1) can be folded down for space-saving transport and storage of the mower.
Risk of injury!
Stop the engine before folding down the upper handlebar and detach the spark plug socket. No additional loads must be placed on the upper handlebar (1) (e.g. hanging work clothing over the upper handlebar).
Danger of pinching!
The upper handlebar (1) can fold down on its own when the two rotary handles (3) are released. Therefore hold the upper handlebar (1) at its highest point before releasing the two rotary handles (3).
- Detach the recoil starter rope. (⇒ 7.3)
- Release the rotary handle (3) on each side (by turning anti-clockwise).
- Slowly fold the upper handlebar (1) forwards.
7.5 Assembling the grass catcher bag
Avoid damage to the machine!
Do not pull the grass catcher bag fabric (B) over the handle (1) of the grass catcher bag frame (C) during assembly (note the opening (2) in the grass catcher bag fabric (B)!).
- Pull the grass catcher bag fabric (B) over the grass catcher bag frame (C) as shown.
Insert the handle (1) through the opening (2) in the grass catcher bag fabric (B).
- Fasten the clips (3) on the grass catcher bag fabric (B) at the top, bottom and sides of the grass catcher bag frame (C).
7.6 Removing and attaching the grass catcher bag
Risk of injury!
The engine must be stopped before attaching or removing the grass catcher bag.
Attaching:
- Open the discharge flap (1) and hold it open.
- Hold the grass catcher bag (2) by the handle (3) and guide it to the discharge chute on the lawn mower.
- Position the guiding plate of the grass catcher bag over the crossbar (4).
- Attach the grass catcher bag (2) to the grass catcher bag mount (6) by means of the two locating lugs (5) (left and right).
- Release the grass catcher bag and slowly close the discharge flap (1).
Detaching:
- Open the discharge flap (1) and hold it open.
- Hold the grass catcher bag (2) by the handle (3) and slowly lift it until both lugs (5) are detached from the grass catcher bag mount (6).
- Remove the grass catcher bag rearwards while carefully pulling the guiding plate out of the discharge chute.
- Slowly close the discharge flap (1).
7.7 Central cutting height adjustment
Risk of injury!
Stop the engine before adjusting the cutting height.
Seven different cutting heights between 25 mm and 75 mm can be set.
Cutting level 1:
Lowest cutting height
Cutting level 7:
Highest cutting height
- Press the cutting height adjustment lever (1) to the rear wheel (2) with one hand and hold in position.
- Set the cutting height adjustment lever (1) to the required position.
- Slowly release the cutting height adjustment lever (1) again and allow it to engage.
7.8 Fuel and engine oil
Risk of injury!
Note the warnings in the section
"For your safety". (⇔ 4.)
Avoid damage to the machine.
Top up the engine oil before starting for the first time (see engine instruction manual). VIKING recommends using a suitable filling aid when topping up the engine oil (e.g. funnel). The filling aid is not included in the standard equipment.
Engine oil:
Please consult the engine instruction manual for the type of engine oil to be used and the oil capacity. Check the oil filling level at regular intervals (see engine instruction manual). Avoid exceeding or falling below the correct oil level.
Fuel:
Recommendation:
Fresh good quality fuel.
Please consult the engine instruction manual for details on the fuel quality (octane rating).
- Unleaded petrol
A funnel should be used when filling the tank with fuel (not included in standard equipment).
8. Safety devices
8.1 Motorstop lever
The lawn mower is equipped with a motorstop device.
The engine stops immediately when the motorstop device is triggered (release of the motorstop lever (15)) and comes to a complete standstill within a few seconds. The engine and mowing blade come to a standstill within 3 seconds.
9. Notes on working with the machine
A perfect, thick lawn is achieved by
- Mowing at low driving speeds.
– Mowing regularly 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 blade should therefore be sharpened regularly (specialist dealer).
- Changing the cutting direction regularly.
10. Initial operation of the machine
10.1 Starting the engine
Avoid damage to the machine!
Do not start the engine in tall grass or at the lowest cutting height. This makes starting difficult.
Thanks to the fixed throttle setting, the engine always operates at the optimum working speed after starting.
Start procedure when the engine is cold:
- Press the primer (1) three times.
- Press the motorstop lever (2) to the handlebar and hold.
- Slowly pull out the recoil starter rope (3) to the point of compression resistance. Then pull forcefully and quickly to arm's length. Slowly return the recoil starter rope (3) again so that it is rolled up again.
Repeat the procedure until the engine starts.
Start procedure when the engine is warm:
Avoid damage to the machine!
The primer must no longer be pressed when the engine is warm. It should be remembered, however, that the engine can cool down very rapidly in very cold weather.
- The start procedure is the same as when the engine is cold.
However, it is not necessary to press the primer (1).
10.2 Stopping the engine
To stop the engine, release the motorstop lever (15).
Engine and mowing blade come to a stop after a short run-down time.
10.3 Self-propulsion lever (MB 248 T)
The lawn mower MB 248 T is equipped with self-propulsion.
Switching on self-propulsion:
- Start the engine. (⇒ 10.1)
- Pull the self-propulsion lever (1) to the handlebar and hold.
Self-propulsion is switched on and the lawn mower moves forwards.
Switching off self-propulsion:
- Release the self-propulsion lever (1). Self-propulsion is switched off and the lawn mower comes to a standstill. The engine continues to run.
10.4 Emptying the grass catcher bag
Risk of injury!
The engine must be stopped for safety reasons before removing the grass catcher bag.
- Detach the grass catcher bag. (⇒ 7.6)
• Empty the grass catcher bag.
- Attach the grass catcher bag. (⇒ 7.6)
11. Maintenance
11.1 General
Risk of injury!
Observe the safety instructions in the section "For your safety" ( 4.).
Annual service by the specialist dealer:
The lawn mower should be inspected once annually by a specialist dealer. VIKING recommends VIKING specialist dealers.
11.2 Cleaning the machine
Maintenance interval:
After each use.
Risk of injury!
Stop the engine and remove the spark plug socket.
Empty the fuel tank (run empty) before placing the machine in the cleaning position.
The machine is only safely in the cleaning position when the discharge flap is open.
Cleaning position:
- Select cutting level 1. (⇒ 7.7)
- Release the upper handlebar (1) by unscrewing the two rotary handles (2).
- Open the discharge flap and hold it open.
- Place the machine in the cleaning position until it stands on its own.
11.3 Engine
Maintenance interval:
See engine instruction manual.
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 oil and air filter regularly.
The recommended oil change intervals as well as information on engine oil and oil capacities can also be found in the engine instruction manual.
The cooling ribs must always be kept clean to ensure that the engine is adequately cooled.
11.4 Checking the mowing blade wear limit
Risk of injury!
Observe the safety instructions in the section "For your safety". ( 4.)
Maintenance interval:
Before each use.
Check procedure:
The mowing blade (1) must be cleaned thoroughly before each check procedure.
- Place the machine in the cleaning position. ( 11.2)
Mowing blade thickness:
The blade thickness (A) must be at least 2 mm at any point. The most important points are marked in the illustration. (Check using slide calliper).
Wear limit of the cutting edges:
The cutting edges must not be ground back by more than 5 mm (distance (B)) during sharpening. When checking, place a ruler (2) against the front blade edge (3) and check for wear.
11.5 Maintaining the mowing blade
Risk of injury!
Observe the safety instructions in the section "For your safety". ( 4.) We recommend that you have the mowing blade sharpened by a specialist dealer.
Maintenance interval:
Every 25 operating hours.
Removing the mowing blade:
For removal, use a wooden block (1) (approx. 60 x 60 mm) to counterhold the mowing blade (2).
- Loosen and unscrew the blade fastening screw (3). Remove the blade fastening screw (3), washer (4) and mowing blade (2).
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!
When resharpening the mowing blade, it is essential that the wear limits and the cutting angle of 30^ are observed.
The mowing blade must be replaced if notches or cracks are detected, or if the specifications contained in the section "Checking the mowing blade wear limit" are exceeded.
Installing the mowing blade:
Install the mowing blade (2) with the curved edges pointing upwards.
For installation, use a wooden block (1) (approx. 60 x 60 mm) to counterhold the mowing blade (2).
- Install the mowing blade (2) on the blade mount (5) and tighten the blade fastening screw (3) with retaining washer (4) to a torque of 60 - 65 Nm.
Risk of injury!
The prescribed tightening torque for the blade fastening screws of 60 - 65 Nm must be strictly observed.
The retaining washer (4) must be replaced each time the blade is installed.
Additionally secure the blade fastening screw (3) with Loctite 243.
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 subjected 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 the average.
The retaining washer must be replaced each time the blade is installed.
The blade fastening screw must be replaced each time the mowing blade is changed.
11.6 Storage (winter break)
Observe the section "For your safety" before storing the machine. ( 4.)
Note the following points when storing the machine for long periods (winter break):
- Clean all external parts of the machine with care.
- Thoroughly lubricate/grease all moving parts.
- Empty the fuel tank and carburettor (e.g. by running empty).
- Unscrew the spark plug (see engine instruction manual) and pour approx. 3 cm³ of engine oil into the engine via the spark plug hole. Turn the engine several times with the spark plug removed (pull the recoil starter rope).
Fire hazard!
Keep the spark plug socket away from the spark plug hole due to the danger of ignition.
- Screw the spark plug back in (see engine instruction manual).
- Perform an oil change (see engine instruction manual).
- Store the machine in a dry and locked place that is generally free of dust. Make sure that it is out of the reach of children.
12. Transport
12.1 Transporting
Risk of injury!
Observe the section "For your safety" before transporting. ( 4.) Carry the machine only with the help of a second person. Always wear suitable safety clothing (safety shoes, thick gloves). Detach the spark plug socket before lifting or transporting.
Lifting or carrying the machine:
- Only lift or carry the machine at the lifting point (1) and the upper handlebar (2) or, when the upper handlebar is folded, by the two lower handlebar sections (3) (see illustration A).
Transporting the machine:
Risk of injury!
Only lash the machine when it is standing on all four wheels. In this position the mowing blade is not exposed and no engine oil or fuel can escape (see illustration B).
When transporting the machine on a load floor (trailer, car, etc.), always use suitable fastening material of an adequate size to prevent it from slipping. Attach ropes or straps at the following points on the machine:
- Front wheel, rear wheel
– Lower handlebars
13. 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, valuable resources can be re-used. For this reason, the machine should be disposed of for recycling at the end of its useful life. Pay particular attention to the information in the "Disposal" section during disposal ( 4.).
Consult your recycling centre or your specialist dealer for information on the proper disposal of waste products.
14. Minimising wear and preventing damage
Important information on maintenance and care of the product group
Petrol lawn mowers
VIKING 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 VIKING machine:
1. Wearing parts
Some parts of the VIKING 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:
- Blade
- Grass catcher bag
- V-belt (MB 248 T)
The VIKING 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:
– product modifications not approved by VIKING,
– Use of fuel and lubricants not approved by VIKING (lubricants, petrol and engine oil, see engine manufacturer's specifications).
- The use of tools or accessories which are not approved or suitable for the machine, or are of inferior quality.
- Improper use of the product.
– 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.
VIKING recommends that you have maintenance operations and repairs performed exclusively by a VIKING specialist dealer.
VIKING 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.
15. Standard spare parts
Mowing blade
6350 702 0101
Blade fastening screw
9008 341 9069
Retaining washer
0000 702 6600
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 VIKING specialist dealer.
We,
VIKING GmbH
Hans Peter Stihl-Strasse 5
declare that the machine,
Manually-operated lawn mower with combustion engine (MB)
Manufacturer's
VIKING
brand:
Type: MB 248.1
MB 248.1 T
Serial number: 6350
Conforms to the following EU directives: 97/68/EC, 2000/14/EC, 2004/108/EC, 2006/42/EC
The product has been developed in conformance with the following standards: EN 836
Applicable conformity assessment procedure:
Appendix VIII (2000/14/EC)
Name and address of relevant, named location:
Compilation and storage of technical documentation:
Johann Weiglhofer
VIKING GmbH
The year of manufacture and serial number appear on the identification plate of the machine.
Measured sound power level: 95,2 dB(A)
Guaranteed sound power level: 96 dB(A)
Langkampfen,
2012-01-02 (YYYY-MM-DD)
VIKING GmbH
Research and Product Development Manager
17. Technical specifications
MB 248.1 /
MB 248.1 T:
Serial number: 6350
Engine, design: 4-stroke combustion engine
Engine type: B&S
Nominal output at 1.9 - 2900
nominal speed: kw-rpm
Displacement: 148 ccm
Fuel tank: 0.9 l
Type of cutting
utilities: Cutter bar
Cutting width: 46 cm
Speed of cutting
utilities: 2900 rpm
Engine output speed: 2900 rpm
In accordance with
Directive
2000/14/EC:
Guaranteed sound
power level L_WAd 96 dB(A)
In accordance with
Directive
2000/14/EC:
Sound pressure level
at workplace L_pA 85 dB(A)
Uncertainty K_pA 1 dB(A)
Specified vibration
characteristic in
accordance with
EN 12096:
Measured value a_hw 4,85 m/sec ^2
Uncertainty K 2,43 m/sec ^2
Measurement in
accordance with
EN 20643
MB 248.1 /
MB 248.1 T:
Safety device: Motorstop
Starter: Rope start
Tightening torque for
blade fastening
screw: 60-65 Nm
Self-propulsion, rear
wheels MB 248.1 T: 1 forward gear
Wheel dimensions,
front: 180 mm
Wheel dimensions,
rear: 200 mm
Cutting height: 25 - 75 mm
Grass catcher bag
capacity: 45 |
L/W/H: 143/52/102
Weight: 27/29 kg
18. Troubleshooting
If necessary, contact a specialist dealer; VIKING recommends VIKING specialist dealers.
See engine instruction manual.
Fault:
Engine will not start
Possible cause:
- Motorstop lever not pressed.
- No fuel in tank; fuel line blocked.
– Inferior, dirty or old fuel in tank.
– Air filter dirty.
- Spark plug socket detached from spark plug; ignition lead not properly fastened to socket.
- Spark plug dirty or damaged; incorrect electrode gap.
– Primer not pressed.
Remedy:
- Press motorstop lever to handlebar and hold. ( 8.1)
- Top up fuel; clean fuel line. ✗
- Always use fresh, good quality fuel, normal unleaded petrol; clean carburettor. ✗
- Clean air filter. ✗
- Connect spark plug socket; check connection between ignition lead and socket. ✗
- Clean or replace spark plug; adjust electrode gap. ✗
- Press primer three times before starting. ( 10.1)
Fault:
Starting problems or deteriorating engine power.
Possible cause:
– Lawn mower housing blocked.
- Mowing at an excessively low cutting height or fast pushing speed.
– Water in fuel tank and carburettor; carburettor blocked.
– Fuel tank contaminated.
– Air filter dirty.
- Spark plug dirty.
Remedy:
- Clean lawn mower housing (detach spark plug socket!). (⇒ 11.2)
- Set lower cutting height/reduce pushing speed. ( 7.7)
- Empty fuel tank, clean fuel line and carburettor. ✗
- Clean fuel tank. ✗
- Clean air filter. ✗
- Clean spark plug. ✕
Fault:
Engine overheating.
Possible cause:
– Oil level in engine too low.
– Cooling ribs dirty.
Remedy:
- Change engine oil. (⇒ 7.8)
– Clean cooling ribs. (⇒ 11.2)
Fault:
Excessive vibration during operation.
Possible cause:
– Cutting unit defective.
- Engine mounting loose.
Remedy:
- Check mowing blade, blade shaft and blade fastening (blade fastening screw and retaining washer), and repair if necessary. ✗
- Tighten engine mounting bolts. ✗
19. Service schedule
Provide your VIKING specialist dealer with this instruction manual when you have maintenance operations performed on your VIKING product.
Your VIKING specialist dealer will confirm the correct performance of the required service operations in the "Service schedule" section.
Date: ____ ____ ____ ____ ____ ____
VIKING dealer stamp
Next service
Date: ____ ____ ____ ____ ____
Date: ____ ____ ____ ____ ____ ____
VIKING dealer stamp
Next service
Date: ____ ____ ____ ____ ____
Model:
Serial number:
Handed over
Date: ____ ____ ____ ____ ____
Date: ____ ____ ____ ____ ____ ____
Next service
Date: ____ ____ ____ ____ ____
Date: ____ ____ ____ ____ ____ ____
Next service
Date: ____ ____ ____ ____ ____
Next service
Date: ____ ____ ____ ____ ____
Date: ____ ____ ____ ____ ____
Next service
Date: ____ ____ ____ ____ ____ ____
Date: ____ ____ ____ ____ ____ ____
Next service
Date: ____ ____ ____ ____ ____
Chère cliente, cher client,
97/68/CE, 2000/14/CE, 2004/108/CE,
2006/42/CE
[Figure: Two identical horizontal lines with vertical tick marks]
Datum: ____ ____ ____ ____ ____ ____
97/68/CE, 2000/14/CE, 2004/108/CE, 2006/42/CE
2012-01-02 (AAAA-MM-DD)
VIKING GmbH
Weiglhofer
Director del Departamento de
97/68/CE, 2000/14/CE, 2004/108/CE, 2006/42/CE
2012-01-02 (AAAA-MM-DD)
VIKING GmbH
Koble inn fremdriften.
MB 248 T:
Starte motoren.
Startprosedyre for kald motor:
Startprosedyre for varm motor:
97/68/EF, 2000/14/EF, 2004/108/EF, 2006/42/EF
97/68/EG, 2000/14/EG, 2004/108/EG, 2006/42/EG
