STH 10.71 W - Snow blower Kärcher - Free user manual and instructions

Product type	Snow blower (wheeled snow cutter)
Brand	Kärcher
Model	STH 10.71 W
Engine	B&S (Briggs & Stratton) 4-stroke, 305 cm³, 7.5 kW / 10.2 PS
Fuel	Regular unleaded gasoline, tank 3.8 L
Working width	710 mm
Max. clearing capacity	2200 m²/h
Dimensions (L × W × H)	1213 × 781 × 800 mm
Weight	102 kg
Number of forward speeds	6
Number of reverse speeds	2 (R1 slow, R2 fast)
Sound pressure level	94 dB(A)
Guaranteed sound power level	106 dB(A)
Vibration (hand-arm)	5 m/s²
Engine oil type (above 0 °C)	SAE 30
Engine oil type (between 0 °C and -18 °C)	SAE 5W30
Engine oil type (below -18 °C)	SAE 0W30
Engine oil quantity	approx. 0.83 L
Safety devices	Coupling levers, protective grille, ejection chute flap
Routine maintenance	Check oil level, clean ejection chute, grease moving parts
Warranty	According to applicable conditions in the country (material or manufacturing defect)
Spare parts	Use exclusively original Kärcher parts

Frequently Asked Questions - STH 10.71 W Kärcher

What fuel to use for the Kärcher STH 10.71 W snow blower?

Use regular unleaded gasoline (octane rating recommended by the engine manufacturer). The tank has a capacity of 3.8 L. Never refuel while the engine is running or hot.

How to start the engine of the Kärcher STH 10.71 W?

1. Open the fuel valve. 2. Insert the ignition key into the lock. 3. Activate the choke (pull slowly until resistance, then pull firmly). 4. For cold start, press the cold start aid 2 to 7 times. 5. Let it warm up for a few minutes before using the machine.

What engine oil to use?

Use SAE 30 engine oil above 0 °C, SAE 5W30 between 0 °C and -18 °C, and SAE 0W30 below -18 °C. The oil quantity is approximately 0.83 L. Check the level before each use.

How to adjust the cutting height (scraper plate)?

Tilt the machine forward, loosen the fixing screw of the scraper plate and adjust it higher or lower according to conditions. The plate must touch the ground at the same time as the wheel. Too high a setting throws snow backward, too low wears the plate prematurely.

How to maintain the V-belts?

The belts should be tightened if the auger drive operates irregularly. For STH 10.71 W models, tension is adjusted by repositioning the coupling cable into a higher hole. If wear is too great, have the belts replaced by a specialized workshop.

What to do in case of blockage in the ejection chute?

Danger: first turn off the engine, remove the ignition key and the spark plug connector. Wait for all moving parts to stop completely. Then remove the blockage with the supplied plastic sleeve or a plastic shovel. Never use your hands.

How to change the safety bolts (shear pins)?

When the safety bolts are sheared (to protect the machine against foreign objects), remove the damaged bolts and pins, clean and lubricate the mounting plate, then install new original Kärcher bolts and pins (spare parts).

What are the essential safety precautions?

Wear gloves, safety glasses, tight clothing and non-slip shoes. Keep people and animals at a distance. Never use the machine in an enclosed space (risk of asphyxiation). Before any maintenance, turn off the engine and remove the key and spark plug connector.

How to adjust the direction and range of the snow stream?

The direction of the stream is adjusted by turning the crank (position 7 in the image). The range is adjusted by pushing the lever (position 5) forward to increase the flap height. The higher the flap, the farther the snow is thrown.

Why won't the engine start?

Possible causes: empty tank, stale fuel, choke in 'RUN' position, throttle lever not on 'fast' (if present), spark plug connector disconnected, dirty or defective spark plugs. Check each of these points. If the problem persists, consult a specialized workshop.

USER MANUAL STH 10.71 W Kärcher

STH 8.66 W / STH 10.71 W / 13.84 W

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STH 8.66 W, STH 10.66 W Crt, STH 10.71 W, STH 13.84 W)

Bild 11 A

Please read and comply with these instructions prior to the

initial operation of your appliance. Retain these operating instructions for future reference or for subsequent possessors. In case of transport damage inform vendor immediately

Contents

Environmental protection 16

Overview 16

Symbols on the machine 16

Symbols in the operating instructions 16

Safety instructions 16

Safety Devices 17

Proper use 17

Before Startup 17

Start up 17

Operation 17

Transport 19

Shutdown 19

Maintenance and care 20

Troubleshooting 21

Technical specifications 23

Warranty 23

CE declaration 23

Environmental protection

	The packaging material can be recycled. Please do not throw the packaging material into household waste; please send it for recycling.
	Old appliances contain valuable materials that can be recycled; these should be sent for recycling.. Batteries, oil, and similar substances must not enter the environment. Please dispose of your old appliances using appropriate collection systems.
Pb	Please dispose off the normal or rechargeable batteries in an environment-friendly manner. Batteries and accumulators contain substances that must not enter the environment. Please dispose them off using appropriate collection systems.

Please do not release engine oil, fuel oil, diesel, or petrol into the environment. Protect the ground and dispose of used oil in an environmentally-clean manner.

Overview

Device elements

Figure 1

1 Clutch bow/clutch lever for auger drive 2 Clutch lever for driving 3 One-way clutch lever, left 4 One-way clutch lever, right 5 Adjust the throw distance 6 Switching lever

Forward: Gears 1-5 (only STH 5.56), gears 1-6 Reverse: R1 slow/R2 fast

7 Adjust throw direction 8 Spar handle

Figure 3

1 Ignition key 2 Choke 3 Cold start help (Tupfer) 4 Rope starter 5 Mains plug for electric starter 6 Starter knob 7 Gas lever 8 Ignition plug 9 Starter type plate 10 Fuel tap 11 Engine stop switch

Symbols on the machine

	Risk of burns! Keep safe distance from hot parts of the appliance.
	Wear eye and ear protection!
	Keep others out of the hazardous area!
	Risk of injury due to snow being thrown out or solid objects.
	Touch the parts of the appliance only when they have completely come to a standstill.
	Risk of injury on account of rotating parts. Keep hands and feet away from rotating parts.

	Only clean the discharge chute with cleaning utensils..
MAX 20 PSI MAX 1,4 BAR	Risk of explosion! Never exceed the max. tyre pressure of 1.4 bar/20 PSI.
	Switch the machine off prior to any work, such as adjustments, cleaning, testing and pull the spark plug.
	Gas lever position "fast"
	Gas lever position "slow"

Note

Keep these symbols on the machine legible at all times.

Symbols in the operating instructions

Danger

indicates an immediate threat of danger. Failure to observe the instruction may result in death or serious injuries.

Warning

indicates a possibly dangerous situation. Failure to observe the instruction may result in light injuries or damage to property.

Note

indicates useful tips and important information.

Safety instructions

The appliance should not be operated by persons below the age of 16 years (local conditions can specify the minimum age of the operator). - Please keep children and pets away from the hazardous zones of the appliance. - Please follow the national rules and regulations while operating the machine on public streets or paths. - Do not use the appliance to transport persons. Always wear gloves, ear protectors, safety goggles, tight winter clothing and firm shoes with anti-slip soles while working.

• Never use the appliance in closed rooms; do not tank up when the engine is hot or running.
• Do not bring any parts of the body or clothes in the vicinity of rotating or hot parts of the appliance.
• Switch off engine; remove the ignition key and ignition plug if you are not working with the appliance or are leaving the machine. The same is applicable while performing setting, maintenance or repairs.
• Let the engine cool down before storing away the appliance in closed rooms.
• Store the appliance and the fuel at a safe place away from sources of fire (sparks, flame) and out of children's reach.
• Get the appliance repaired only from a specialised workshop.

Safety Devices

Safety devices serve for the protection of the user and must not be put out of operation or bypassed with respect to their function.

Clutch bow

(only STH 953 W)

When the user releases this lever, the auger drive will turn off and the machine will stop moving.

Clutch lever for snail drive

Not STH 953 W

The snail drive switches off when the user releases this clutch lever.

This lever can be stopped in a depressed state (not STH 5.56 W) if the user presses the clutch lever for travel drive and keeps it depressed. Both the levers jump back as soon as the user releases the clutch lever for the travelling drive. The auger and travel drive are switched off simultaneously.

Clutch lever for driving

Not STH 953 W

The travel drive switches off when the user releases this clutch lever.

Safety grid in the discharge shaft

The safety grid prevents intervention in the discharge shaft.

Discharge flap

Figure 9

The discharge flap (2) prevents injuries from ejected objects.

Proper use

This appliance is only to be used for clearing snow from roads and other hard surfaces according to the descriptions and safety instructions given in this Instruction Handbook.

• Any other use is in contravention of the rules!
• Using the appliance in contravention of the rules or making any high-handed

changes to the machine will absolve the manufacturer from any warranty liability.

• The user is responsible for damages to third parties and their property caused by using the appliance.

Before Startup

Unpack the appliance and assemble it

→ Check the contents of the pack before unpacking. → Assemble the appliance according to the instructions given at the end of this Instructions Handbook.

Start up

△ Danger

Risk of injury!

Before doing any work on the machine:

Switch off the engine. Pull out the ignition key and the spark plug. Allow the engine to cool down.

Check the machine

Perform a visual inspection before each use. Check and ensure that all safety equipment, operator control elements, and the corresponding clutch tensions/cables and screw fittings are not damaged and are tight. Replace damaged parts before operations. Not STH 953 W: Check clutches for snail and travel drive (see "Maintenance tasks"). STH 8.66 W, STH 10.66 W Crt, STH 10.71 W, STH 13.84 W: Check switching lever (see "Maintenance tasks").

Check oil level

Check oil level; refill engine oil if required (see "Engine Instruction Booklet").

Refuelling

Danger: Risk of explosion and fire! - Only use the fuels specified in the Operations Manual of the engine manufacturer. - Do not refuel the machine in enclosed spaces. Smoking and naked flames are strictly prohibited. - Ensure that no fuel reaches hot surfaces. - Fuel up only when the engine is switched off and is cold. - Never fill the fuel tank completely. Wipe off spilled fuel. - Store fuel only in suitable containers. Fuel up (for type of fuel see "Engine Instruction Booklet"); close the lid of the tank and wipe off fuel residues.

Check the tyre pressure

Not STH 953 W: For transportation, the tyres may show a higher level of air pressure. Check air pressure in the tyres; adjust it if required (approx. 1 bar).

Adjust the machine to suit the snow and ground conditions

Setting the working position

(machines with track drive) Figure 4

Choose a suitable position using the adjustment lever (1). - Position I: For heavy and icy snow. Auger is pressed to the ground. - Position II: For normal snow conditions. - Position III: To clear uneven paths or to transport the machine. The auger has a greater distance to the ground.

Adjusting the clearing plate (only STH 953 W)

Figure 10

If the machine is sitting on even ground, the auger (1), clearing plate (2) and wheels (3) must touch the ground simultaneously.

-A clearing plate that is adjusted too high will cause the snow to be thrown to the rear. - A clearing plate that is positioned too low will wear faster. Tilt the appliance rearward. Loosen nuts (5). Adjust the clearing plate higher or lower (as required) and reattach. Tilt the machine backwards, check adjustment and repeat if necessary.

Adjusting the skids

Not STH 953 W

Figure 7

The landing skids (1) can be used to adjust the distance between the ground and the clearing plate (5) in such a way that no parts of the ground (such as soil or stones) are picked up.

Machines with track drive: Set the gear lever to position II. Loosen the nuts (2) on both the sides of the appliance. Adjust the landing skids according to the underground surface: Set it lower for uneven or loose paths; higher for even roads and paths. Fasten the landing skids with nuts (2) in such a way that they uniformly touch the ground from the bottom.

Operation

Safety instructions

Danger

Risk of injury!

• Keep persons, especially children, and pets away from the hazardous zones.
• Operate the machine only in a safe and perfect working condition.
• Check the area where the machine is to be used and remove all objects that can get picked up and thrown out by the machine.
• Work only with adequate lighting.
• Only use the machine in walking speed.
• Work slowly and safely especially on uneven or loose paths and while reversing.
• Adjust the distance between the snail casing and the underground floor in such a way that the appliance does not pick up any foreign bodies (such as stones).

Danger

Risk of suffocation on account of carbon monoxide! Only operate the combustion engine while out in the open.

Note

Follow the national/ local regulations for the usage times (ask the local authorities, if required).

Danger

Long hours of using the appliance can cause circulation problems in the hands on account of vibrations.

It is not possible to specify a generally valid operation time, since this depends on several factors:

• Proneness to blood circulation deficiencies (cold, numb fingers).
• Low ambient temperature. Wear warm gloves to protect hands. -A firm grip impedes blood circulation.
• Continuous operation is worse than an operation interrupted by pauses.

In case of regular, long-term operation of the device and in case of repeated occurrence of the symptoms (e.g. cold, numb fingers) please consult a physician.

Tips for clearing the snow

• Clear up immediately after the snowfall; otherwise, the lower layer becomes ice and makes clearing difficult.
• If possible, clear the snow in the direction of the wind.
• Clear the snow in such a way that the clearing tracks overlap a little.

Working on slopes

△Danger

Risk of injury! Danger of tipping if gradient is too high. - Do not use the appliance on slopes with an inclination greater than 20% . - Work slowly and cautiously, especially while changing the direction of travel. - Drive up and down the slope - never diagonally to the slope. - Pay attention to hurdles - do not work close to the inclination.

Setting the direction and distance of throw

Figure 9

Danger

Risk of injury! Do not direct the flap (2) of the discharge shaft (3) towards persons, animals, windows, cars and doors.

Adjust throw direction

Not STH 953 W:

Bring the discharge shaft (3) to the desired direction by turning the crank (figure 1, item 7). Only STH 953 W: Move the discharge chute (3) into the desired direction using the handle (4).

Note

Do not use the handle (4) to lift the machine.

Adjust the throw distance

The deeper the flap (2), the higher and farther the snow will be discharged.

Machines with lever: Press the lever (figure 1, item 5) towards the front to set the flap (2) higher and vice-versa. Machines without lever: Loosen the hand knob (1) and adjust the flap (2) higher or lower as required.

Start the engine

Figure 3

Read the operating instructions of the engine manufacturer before start-up and follow the safety instructions carefully. Release the clutch bow/clutch lever for auger and travel drive before starting. Check tank contents and oil level; refill oil and fuel (see "Engine Instructions Booklet").

Note

Some models do not have a gas lever; the speed is adjusted automatically. The engine always runs with optimized speed.

Starting using rope starter

Set the fuel tank tap, if there is one, to "ON/OPEN". Insert the ignition plug into the spark plug. Not STH 953 W: Turn gas lever, if there is one, to "fast". On machines without gas levers, set the engine stop switch to "ON". Set the choke for cold start to "ON/CHOKE". Insert the ignition key into the ignition lock. Press cold start help (Tupfer) once; press it twice to seven times during cold weather (depending on the engine type). Pull the rope starter slowly till you feel the resistance and then give it a quick and hard tug. Do not allow the rope starter to recoil immediately - just let it go back slowly.

Reset the choke back to "RUN/OFF" in a step-by-step manner, if the engine is running.

Starting using electrical starter (optional)

Not STH 953 W

Danger

Risk of electric shock.

• Do not use the electric starter in the rain.
• Check whether the mains are secured with a leakage current protection switch. If not, get an electrician to install a suitable switch.

To connect the electrical starter to the mains, use only extension cables (not part of standard delivery) that have been approved for use in the open and have a safety conductor.

For example: for a max. length of 50 m

-H07RN-F 3x1.5 mm² up to -25 °C -H07BQ-F 3x1.5 mm² up to -40 °C

Danger

Risk of electric shock.

• Prior to each engine start, check the extension cables and the cables/connectors on the engine for damage.
• Please arrange immediately for the exchange of damaged parts by a skilled electrician.
• Never start the machine with damaged parts.

Warning

Improper connection of the electrical starter can cause damage to the machine or to property in its vicinity. Check whether the mains are being operated according to instructions on the type plate of the starter and is protected with appropriate fuses.

Set the fuel tank tap, if there is one, to "ON/OPEN". Insert the ignition plug into the spark plug. → Turn gas lever, if there is one, to "fast". On machines without gas levers, set the engine stop switch to "ON". Insert the ignition key into the ignition lock, do not turn it. → First connect the extension cable to the mains and then connect it to the mains socket. Set the choke for cold start to "ON/CHOKE". → Press cold start help (Tupfer) once; press it twice to seven times during cold weather (depending on the engine type). → Press the starter button (max. 5 seconds) till the engine starts. Wait for at least 30 seconds before making a fresh start. → Reset the choke back to "RUN/OFF" in a step-by-step manner, if the engine is running. → First disconnect the extension cable from the mains and then from the electrical starter.

Putting/ changing gears

Not STH 953 W

Figure 1

△ Warning

Release the clutch lever for snail and travel drive before putting or changing a gear. Select the gear using the switch lever:

→ Forward: "1" (slow) to "5/6" (fast) → Reverse: R1 slow/R2 fast

Working with the appliance

Figure 1

△ Warning

Risk of damage!

• If the machine comes in contact with foreign objects (e.g. stones) or if there are unusual vibrations, switch off the machine and check the damage. Rectify the damage before starting to work again with the appliance.
• Let the engine warm up prior to using the machine. Only STH 953 W: Set the direction and distance of throw. Start the motor. Press the clutch bow and hold it. The auger is driven. The machine will move forward when the auger touches the ground. → Increasing the travel speed: Raise the spar handle slightly. The auger will have better ground traction and will drive the machine forward faster. If repeated frequently, this will cause a more rapid wear of the rubber lip on the auger. Decreasing the travel speed: Press the spar handle downward. Not STH 953 W: Set the direction and distance of throw. Start the motor. → Select the forward gear after releasing the clutch levers for snail and travel drives. Press the clutch lever for snail drive and keep it depressed. The snail and the throwing turbine will start up. Press the clutch lever for travel drive and keep it depressed. The appliance will move and clear the snow. The clutch lever for auger drive remains locked till this lever remains depressed (not STH 5.56 W) and can now be released. To change the gears, first release the clutch lever for travel drive and then use the switching lever for changing the gears. → Machines with freewheeling levers: The machine can be lowered more easily using the freewheeling levers. To the right: Pull on the right freewheeling lever. To the left: Pull on the left freewheeling lever.

Stopping the engine

Figure 3

To avoid damage to the appliance and prevent starting problems due to humidity, let the engine run for a few minutes before switching it off (so that it gets dried). Then, if there is a gas lever, turn it to "slow". On machines without gas levers, set the engine stop switch to "OFF".

Pull out ignition key.

Then, if there is a fuel tap, turn it to "OFF/CLOSE".

Remove the blockages from the snail or the discharge shaft.

Danger

Risk of injury!

Before doing any work on the machine:

• Switch off engine.
• Wait till all the moving parts have come to a stand-still.
• Pull out the ignition key and the ignition plug.

Figure 13

Then, remove the blockages using a plastic plunger or a shovel.

Snow chains (optional)

Snow chains can be purchased and used if the weather conditions are extreme.

Transport

Drive the machine

For maneuvering/travelling short distances.

Start the appliance. Select a forward or reverse gear. Press the clutch lever for travel drive and keep it depressed. Drive the machine carefully.

Transport without self-drive

Danger

Risk of injury!

Before doing any work on the machine:

Switch off engine. Pull out the ignition key and the ignition plug. Allow engine to cool down. Empty fuel tank. Transport the machine on or in a vehicle in the horizontal position. Secure the machine against slippage or from rolling off.

Shutdown

Danger

Risk of explosion!

Smoking and naked flames are strictly prohibited. Ensure that no fuel reaches the hot open surfaces.

Please follow these instructions if the machine is not to be used for more than one month:

Prepare the engine (see "Engine Instruction Booklet"). Empty the fuel tank. Clean the device. Wipe all metallic parts with an oily cloth to protect them against rusting or spray some oil on them. Store the machine in a clean and dry room.

Maintenance and care

Maintenance schedule

Once in the season:

• Get the machine checked and serviced in an authorised workshop.

Every time before use:

• Check oil level; refill engine oil if required (see "Engine Instruction Booklet").
• Check whether all screw joints are tight; tighten them, if necessary.
• Check safety equipment.
• For machines without electric starter: Check the cables and connectors on the engine.

Maintenance tasks After using	for	25 h 50 h	after the	season	depending on requirements
Clean the discharge shaft, snail and snail casing. x
Oil change 3)			x 4)
Lubricate all moving and rotating parts x x
Clean the spark plugs 1)		x
Get the spark plugs replaced 2)				x
Check air pressure in the tyres; increase it, if required x x
Clean the exhaust and the air cooling system 1)	x				x
Check clutch setting; readjust, if required x
Get the carburetor settings checked 2)					x
Check clearing plate; replace worn out clearing plate x
Check landing skids; replace worn out landing skids in pairs x
Check track, adjust if necessary, replace defective track if required					x
Replace tank lock x
Get the exhaust checked 2)					x

See "Engine Instruction Booklet" 2) Get these jobs done only from an authorized workshop 3) First oil change after 5 operating hours (h) 4) Change oil every 25 operating hours (h) if the machine is operated under heavy load or if the ambient temperature is high

Maintenance Works

Danger

Risk of injury! Before doing any work on the machine: - Switch off engine. - Pull out the ignition key and the ignition plug. - Allow engine to cool down.

Accessories and Spare Parts

Only use accessories and spare parts which have been approved by the manufacturer. The exclusive use of original accessories and original spare parts ensures that the appliance can be operated safely and trouble-free.

Cleaning the device

Park the machine on solid, even and horizontal ground. Remove dirt that is stuck. Clean the machine by letting in flowing water through the discharge shaft and let it dry. Clean the engine using cloth and brush.

Lubricate the machine

Lubricate all rotating and moving parts with some light oil.

Adjust the air pressure in the tyres (Not STH 953 W)

Danger

Risk of explosion! Never exceed the max. tyre pressure of 1.4 bar/20 PSI.

Recommended air pressure is approx. 1 bar

Maintenance jobs for the engine

See "Engine Instruction Booklet".

Adjust the clutch for the snail drive (Not STH 953 W)

Figure 2

Check clutch status:

Press the left clutch lever (1) forward (direction I); at the same time press the rubber (3) downward. The clutch tension (5) must be reduced. Otherwise loosen it (see "Changing the setting of the clutch tension"). Release clutch lever (1). Clutch tension (5) must be without tolerance but should also not be too tight. Else change the setting (see "Changing the clutch tension"). It should be possible to press down the clutch lever (1) completely. Otherwise, the clutch tension is too high and must be reduced (see "Changing the clutch tension").

Additional checks (see "Working with the appliance"):

Turn the auger drive on for 10 seconds with the engine running. Release the clutch lever, the auger must stop rotating.

Adjust the clutch for the travel drive (Not STH 953 W)

Figure 1

Machines with track drive: Set the gear lever to position III. Set the switching lever to the fastest forward gear (highest number). Push the machine forward after releasing the clutch lever for travel drive. While pushing, set the switching lever to the fastest reverse gear and then to the fastest forward gear. If you feel any resistance during pushing or changing the gears, reduce the clutch tension (see "Changing the clutch tension setting"). While pushing the machine, keep the clutch lever of the travel drive depressed. The wheels/tracks must be locked. Otherwise tighten the clutch tension (see "Changing the setting of the clutch tension"). If the setting is still not complete or is doubtful, see "Check travel drive".

Changing the clutch tension setting (Not STH 953 W) Figure 2

For clutch tensions with adjustable covers (6): Tightening: Loosen nuts (7) and screw in the adjustable covers (6). Loosening: Loosen adjusting covers (6) and screw in the nuts (7) in the opposite direction. For clutch tensions with release spring (8): Before doing the setting, remove the spring and then reinsert it. The clutch tension is correct when the spring expands 2-3 cm while coupling. Tightening: Screw the safety nut (9) upward. Loosening: Screw the safety nut (9) downward. For clutch cables with adjustment plates for travel drive (10) or for auger drive (11): Tightening: Loosen screw (A) depending on the adjustment plate, slide adjustment plate down and reattach the screw (A). Loosening: Loosen screw (A) depending on the adjustment plate, slide adjustment plate up and reattach the screw (A).

Checking the travel drive (Not STH 953 W)

Figure 12

Warning

Risk of damage to the machine! While tilting the machine, ensure that it retains its balance and no fuel or oil in the air filter leaks into the engine compartment or to the outside.

Loosen the screws of the frame; tilt the device forward, if required. Release the clutch lever for travel drive and shift to all gears; while doing so, the friction wheel (2) should not touch the drive disc (3). Otherwise loosen coupling tension (see "Changing the clutch tension setting"). Press the clutch lever for travel drive in each gear; the friction wheel must always touch the drive disc. Otherwise tighten the clutch tension (see "Changing the clutch tension setting"). Clean the drive disc and rubber on the friction wheel, if required; they should be grease-free. Remove ice pieces, if any.

Tensioning the V-belt of the auger (only STH 953 W)

Figure 5

If the auger runs unevenly while the engine speed remains constant, the V-belt (5) must be retensioned. If there is an additional boring (3b) on the clutch lever (1), hook the clutch cable (2) into the upper boring (3b).

If there is no additional (upper) boring or if it is already being used, visit an authorized workshop.

Setting the switching lever (STH 8.66 W, STH 10.66 W Crt, STH 10.71 W, STH 13.84 W)

Figure 11 A

(Machines with switching rod)

Remove spring pin (4) and underlying disc (5), remove the spindle nut (6) from the hole (7). Press the switch arm (2) downward; set the switching lever (3) to gear "6". Turn the spindle nut (6) in such a way that the pin can be inserted in the same hole (7). Secure the spindle nut with an underlying disc and spring pin.

Figure 11 B

(Machines with switching tension) Set the switching lever (3) to the fastest forward gear. Loosen screw (A) and press the holder downward till the switching tension is tight. Now tighten screw (A) again. Check correct setting.

Note

This setting is required only if the fastest gear (forward or reverse) cannot be put.

Adjusting the track belt (machines with track drive)

Figure 6

The track belt (1) is adjusted correctly if it can be deflected 10 - 12 mm by hand. Otherwise it has to be readjusted.

Position the machine on an even and horizontal surface so that the tracks no longer touch the ground. Turn the nut (2) until the track belt has the correct tension. In clockwise direction: Tighten. Anticlockwise direction: Loosen.

Replacing the track belt (machines with track drive

Figure 6

Position the machine on an even and horizontal surface so that the tracks no longer touch the ground. Turn the nut (2) anticlockwise until the track belt can be removed. Replacing the track belt: Retension the new track belt using the nut (2) (see "Adjusting the track belt").

Replacing shearing bolts

Not STH 953 W

Figure 8

The auger (3) is fastened to the drive shaft (4) using shearing bolts (1) and locknuts or splints (2). The bolts are designed in such a way that they break (shear off) when the snail comes in contact with foreign bodies. This protects the machine against damages. These parts should only be replaced by original spare parts (Spare bolts and lock nuts or splints are included as options in standard delivery, part W).

Remove broken bolts (1) and locknut or splint (2); clean and lubricate the fastening point. Use new shearing bolt and new locknut or splint.

Replacing the clearing plate

Only STH 953 W:

Figure 10

Tilt the appliance rearward. Remove screws (4) and nuts (5). Replace the clearing plate (2). Fasten new clearing plate to the casing using screws and nuts. Tilt the machine backwards, check (see "Adjusting the clearing plate").

Not STH 953 W:

Figure 7

Remove screws (6), underlying discs (7) and nuts (8). Replace the clearing plate (5). Fasten new clearing plate to the casing using screws, underlying disc and nuts.

Replacing the landing skids (Not STH 953 W)

Figure 7

Remove nuts (2), underlying discs (3) and screws (4). Loosen the landing skids (1) on both the sides of the casing. Adjust the new landing skids (see "Adjusting the landing skids").

Troubleshooting

Danger

Risk of injury! Before doing any work on the machine: - Switch off engine. - Pull out the ignition key and the ignition plug. - Allow engine to cool down.

Note

Some of the functioning problems have simple causes and you can rectify them easily. Call up an authorised workshop in case of doubt or if mentioned explicitly.

Note

Repairs should only be done by authorised workshops using original spare parts.

Troubleshooting

Fault Possible cause	Remedy of whom
Engine does not start	Fuel tank empty. Refill the fuel tank. Operator
	Fuel idling for a long time. Remove the old fuel in a	suitable container in the open (See "Engine Instruction Booklet"). Fill up the tank with clean, fresh fuel.	Operator
	Engine in cold state; choke not set to "ON/CHoke".	Set the choke to "ON/CHoke". Operator
	Gas lever no set to "fast" (not STH 953 W).	Set the gas lever to "fast".	Operator
	Engine stop switch not set to "ON" (machines without gas levers).	Set the engine stop switch to "ON". Operator
	Ignition plug not inserted. Insert the ignition plug into the spark plug. Operator
	Spark plug is dirty. Clean the spark plug (see "Engine Instruction Booklet").	Customer	Operator
	Spark plug is defective. Replace the spark plug.	and ventilation hole. Operator
	Carburetor is overflowing.	Adjust the carburetor.	Customer Service
Engine is running erratically	Choke set to "ON/CHoke".	Choke set to "RUN/OFF".	Operator
	Ignition plug is loosely inserted.	Fix the spark-plug connector properly.	Operator
	Fuel idling for a long time. Water or dirt in the fuel system.	Remove the old fuel in a suitable container in the open (See "Engine Instruction Booklet"). Fill up the tank with clean, fresh fuel.	Operator
	Ventilation hole in tank lid blocked. Clean tank lid	and Vibration hole.	Customer Service
	Carburetor out of alignment.	Replace the carburetor.	Customer Service
Machine does not clear snow	Shearing bolts torn off.	Replace shearing bolts (see "Replacing shear-ing bolts").	Operator
	Snail or discharge shaft is blocked.	Stop the engine, pull out the ignition plug. Remove the blockage.	Operator
	Clutch tension for snail drive is not set properly.	Set clutch tension (see "Setting clutch for snail drive").	Operator
	V-belt loose.	STH 953 W: Tension the V-belt (see "Tensioning the V-belt of the auger").	Operator
		Not STH 953 W: Tighten V-Belt.	Customer Service
	V-belt torn.	Replace V-belt.	Customer Service
Machinen does not run (not STH 953 W)	Clutch tension for travel drive is not set properly.	Adjust clutch tension (see "Setting the clutch for travel drive").	Operator
	V-Belt is loose or torn.	Tighten the loose V-Belt. Replace torn V-Belt.	Customer Service
	Travel drive is coated with ice.	Remove the ice (see "Check travel drive").	Operator
	Friction wheel rubber is torn.	Replace friction wheel rubber.	Customer Service
Excessive vibration	Loose parts or damaged snail.	Stop the engine immediately, pull out the ignition plug. Tighten loose screws and nuts. Repair damaged snail.	Customer Service
Gears can be switched with great difficulty (not STH 953 W)	Clutch tension for travel drive is not set properly.	Adjust clutch tension (see "Setting the clutch for travel drive").	Operator
	Gear lever not adjusted correctly (not STH 5.56 W).	Check switching lever (see "Setting the switching lever").	Operator
	Travel drive is coated with ice.	Remove the ice (see "Check travel drive").	Operator

Information about engine

The engine manufacturer assumes liability for all engine-related problems as regards output, output measurement, technical data, warranty and servicing. For further details, please refer the separate holder/ operator manual of the engine manufacturer.

Technical specifications

		STH 953 W	STH 5.56 W	STH 8.66 W	STH 10.66 W	Crt	STH 10.71 W	STH 13.84 W
Part no.:	--	1.332-101	1.335-101	1.335-201	1.335-302	1.335-203	1.335-204
Type -- Snow clearer		with wheels	Snow clearer with wheels	Snow clearer with wheels	Snow clearer with track belt	Snow clearer with wheels	Snow clearer with wheels
Motor -- MTD, 4-		stroke	MTD, 4- stroke	B&S, 4- stroke	B&S, 4- stroke	B&S, 4- stroke	B&S, 4- stroke
Rated power	kW/HP	2,0/2,7	3,5/4,8	6,0/8,2	7,5/10,2	7,5/10,2	9,7/13,2
Cylinder capacity	cm3	123	179	250	305	305	342
Operating speed	1/min	3600	3600	3550	3600	3550	3400
Capacity of fuel tank, normal petrol (unleaded)	I	1,9	1,9	3,8	3,8	3,8	7,6
Working width	mm	530	560	660	660	710	840
Working speed	km/h	Step speed	Step speed	Step speed	Step speed	Step speed	Step speed
Surface area, max.	m2/h	1700	1700	2000	2000	2200	2500
Length	mm	768	1111	1213	1257	1213	1492
Width	mm	578	629	730	749	781	959
Height	mm	645	800	800	851	800	864
Weight	kg	36	80	100	98	102	135
Amount of oil	I	approx. 0.6	approx. 0.6	approx. 0.83	approx. 0.83	approx. 0.83	approx. 0.83
Oil types above 0 °C	--	SAE 30	SAE 30	SAE 30	SAE 30	SAE 30	SAE 30
Oil types below 0 °C	--	SAE 5W30	SAE 5W30	SAE 5W30	SAE 5W30	SAE 5W30	SAE 5W30
Oil types below -18 °C	--	SAE 0W30	SAE 0W30	SAE 0W30	SAE 0W30	SAE 0W30	SAE 0W30
Noise emission
Sound pressure level (EN 60704-1)	dB(A)	92	92	98	98	94	98
Guaranteed sound power level (2000/14/EC)	dB(A)	104	104	110	110	106	110
Machine vibrations
Vibration total value (ISO 5349)
Upper limbs	m/s2	5	5	5	5	5	5

Warranty

The warranty terms published by our competent sales company are applicable in each country. We will repair potential failures of your appliance within the warranty period free of charge, provided that such failure is caused by faulty material or defects in fabrication. In the event of a warranty claim please contact your dealer or the nearest authorized Customer Service center. Please submit the proof of purchase.

CE declaration

We hereby declare that the machine described below complies with the relevant basic safety and health requirements of the EU Directives, both in its basic design and construction as well as in the version put into circulation by us. This declaration shall cease to be valid if the machine is modified without our prior approval.

Product: Snow clearer

Type: 1.332-xxx, 1.335-xxx

Relevant EU Directives

98/37/EC

89/336/EEC (+91/263/EEC 92/31/EEC,

93/68/EEC)

2000/14/EC

Applied harmonized standards

EN ISO 12100-1

EN ISO 12100-2

EN ISO 14982

ISO 8437

Applied conformity evaluation method

Appendix V

Sound power level dB(A)

STH 953 W

Measured: 102

Guaranteed: 104

STH 5.56 W

Measured: 102

Guaranteed: 104

STH 8.66 W

Measured: 108

Guaranteed: 110

STH 10.66 W Crt

Measured: 108

Guaranteed: 110

STH 10.71 W

Measured: 104

Guaranteed: 106

STH 13.84 W

Measured: 108

Guaranteed: 110

5.957-646

The undersigned act on behalf and under the power of attorney of the company management.

Type: 1332-xxx, 1335-xxx

89/336/CEE (+91/263/CEE, 92/31/CEE, 93/68/CEE)

2000/14/CE

1.332-xxx, 1.335-xxx

(STH 8.66 W, STH 10.66 W Crt, STH

10.71 W, STH 13.84 W)

Fig. 11 A

(Machine with gear lever)

Type: 1.332-xxx, 1.335-xxx

Applicable EC directives

98/37/EC

89/336/EEC(+91/263/EEC,92/31/EEC,

93/68/EEC)

2000/14/EC

Adjusting the base plate

(Only STH 953 W)

Figure 10

When the machine is on a level surface, the auger (1), the base plate (2) and the wheels (3) should all touch the ground at the same time.

Adjust the drive clutch

(Not STH 953 W)

Figure 1

-> Machines with tracks: Set the adjustment handle to position III. -> Set the throttle to the fastest forward (highest digit). -> Push the machine forward with the clutch lever released for driving.

(STH 8.66 W, STH 10.66 W Crt, STH

10.71 W, STH 13.84 W)

Fig. 11 A

Type: 1332-xxx, 1335-xxx

89/336/EEC (+91/263/EEC, 92/31/EEC,

93/68/EEC)

2000/14/EC

Applied harmonized standards

EN ISO 12100-1

EN ISO 12100-2

EN ISO 14982

ISO 8437

Applied method for conformity assessment

Annex V

Lydeffektnivà dB(A)
STH 953 W
Målt:	102
Garanteret:	104
STH 5.56 W
Målt:	102
Garanteret:	104
STH 8.66 W
Målt:	108
Garanteret:	110
STH 10.66 W
Crt
Målt:	108
Garanteret:	110
STH 10,71 W
Målt:	104
Garanteret:	106

STH 13,84 W
Malt:	108
Garanteret:	110

5.957-646

(STH 8.66 W, STH 10.66 W Crt, STH 10.71

W, STH 13.84 W)

Figure 11 A

(Unit with coupling rod)

Reverse: R1-slow/R2-fast

Forward: 1" (slow) -5/6" (fast) Reverse: R1-slow/R2-fast

(STH 8.66 W, STH 10.66 W Crt, STH 10.71 W, STH 13.84 W)

Figure 11 A

Danger of injury from grass thrown by ejected objects.

Approach the machine part only when they have completely stopped.

Danger of injury from rotating parts. Do not keep hands or feet near rotating parts.

Clean the ejection chute only with the use of suitable tools.

DANGER! The maximum air pressure must not exceed 1.4 bar.

Disconnect the device after all work, such as installation, cleaning, inspection, etc., and remove the spark plug cap.

Position of the throttle lever "fast"

Position of the throttle lever "slow"

Note

Keep the device symbol in a disassembled state.

Symbols in the operating instructions

Danger

Indicates an imminent dangerous situation. Failure to follow the instructions may result in death or the most serious injuries.

Warning

Indicates a potentially dangerous situation. Failure to follow the instructions may result in minor injuries or damage to material assets.

Note

Indicates recommendations for the use of important information.

Safety instructions

- The device must not be operated by persons under 16 years of age (local regulations may set a minimum age for users). Do not allow children, especially small children, or animals into the danger zone. - Observe the applicable national regulations when the device is operated in public places and on roads. - Transporting the device is prohibited. During work, wear gloves, hearing protection, protective goggles, close-fitting work clothing, and sturdy boots with non-slip soles. - Never point the device in an enclosed space, with the engine running or hot. Never bring any part of the body close to the rotating parts of the device. Stop the engine, remove the spark plug cap, and remove the spark plug cover when not working with the device or when it is being stored. The same applies to adjustment, maintenance, and repair work. - Before storing the device in an enclosed space, let the engine cool down. Store the device and fuel in a safe place, away from sources of ignition (sparks, flames) and out of reach of children. - Repair the device only in a specialized service center.

Device guards

Guards and protective devices must not be removed while the user is working in the danger zone.

Clutch lever

(Only for STH 953 W)

When the operator releases this lever, the clutch of the traction drive disengages and the machine stops.

Clutch lever for the feed drive

(Not for STH 953 W)

The feed drive disengages when the user releases this clutch lever.

This lever can be locked in the pressed position (except for STH 5.56 W) when the user presses and holds the feed drive clutch lever. As soon as the user releases the feed drive clutch lever, both levers spring back. The feed and traction drives disengage simultaneously.

Clutch lever for the traction drive

(Not for STH 953 W)

The traction drive disengages when the user releases this clutch lever.

Protective grid in the ejection chute

The protective grid prevents penetration into the ejection chute.

Ejector lever

Pnc.9

KlananBbIpaCbIbATEJ（2）n3aunTbOT TpaBM,NOlyuayemBX BCJeCDTBNEBbIpaCbIBAHN ppeDMTOB.

IcnoJb3OBAHne nHa3HaueHnIO

3TOT annapat npedha3auehen K NcONb3OBaHNIO NCKIHOHTeHb KOK CHERooCHNTeJI,ДЯ ydaJIeHn CHera Ha Doporax I JECTKNX NOBepxHOCTX COrnaCHO pRBeDEHHbIM B 3TOM pyKOBOIDCTBE NO 3KcnNyatauIN ONuCAHnAM n PpaBnJAM 6e3oNaChOCTN.

JIIO6oeDpyroe npIMHeHne cHTaETcH He ceJIeBbIM! -Испоьзоване annapata He no Ha3haeHHIO INI CamOBOLbHbIE N3MeHeHnA annapaTa NCKJIQUaOT OTBETCTBeHHOCTb ПОИЗБОДТЕЯ. - PONb3OBaTeIb HeCET OTBETCTBeHHOCt b 3a NOBpeXJDeHn, KOTOpIe BO3HNKaIOT y TpeTbIX IInC INx IMyUeCTBa B pe3yJIbTaTe IcNOIb3OBaHn annapaTa.

Ipeed hauanom pa6oTbI

Pacnakobka n c6opka annapata

Pn paacnakOBKe npOBepntb nepeHb coepxmo ynaKOBKn. Co6paTb annapaT, KaK noka3aHO B KOHcE 3TOrO pyKOBOIDCTBa.

Hauano pa6oTbI

Onachocmb

Onachocmb noyuhenma pmae! Ipeed Bcem npoTaMn c annapatom:

BbIKHouHTb dBnraTeIb. BbIHyTb KIOU 3axnraHnN CHrTb KOIIaQOK CBeu 3axnraHnN. → DaTb DnBnTaTeJIIO OCTbITb.

PnoBepka annapaTa

→ PpOBoDnTb Bn3yaIbHyIO npoBepKy nepeHauaIOM pa60Tbl. → PpOBepuTb Ha NoBpeKdEHHa I NIOTHOCb NocAkn IpeOxpaHHTeBbIX yCTPoiCTB, 3JemeHToB ynpabNeHn I npHaIeXaUnx K Hm TPOcIKOB/ Ka6JeN, a TaKke BCE BnHTObbie CoedInHeHH. →Перед pa60ToI 3aMeHHTb BCE NOBpeKdEHHbIe YactN. He STH 953 W:

PpOBepntb 3aueenHne YepBryHoro n XoIOBOrO npNBoDa (CM. ,Pa6ToI NO Texo6cnyKnBaHIO").

→ STH8.66W, STH10.66W CrT, STH 10.71 W, STH 13.84 W: Turn the switch (see "Maintenance work").

Check oil level

→ Check the oil level, top up if necessary (see "Engine Manual").

Refueling

Danger

Explosion and fire hazard!

• Only use the fuel specified in the engine operating manual.
• Refueling in enclosed rooms is not permitted.
• Smoking and open fire are prohibited. Make sure that fuel does not come into contact with hot surfaces.
• Only refuel when the engine is switched off and cold. Never refuel with the engine running. Wipe up spilled fuel. Store fuel only in approved containers intended for fuel. Refuel (fuel type see engine manual), close the cap and wipe off fuel residues.

Check tire pressure

(not STH 953 W)

For transport, the air pressure in the tires may be higher. → Check the air pressure in the tires, adjust if necessary (approx. 1 bar).

Adjust the device according to snow and cover conditions

Set the working position (lever for track drive)

Pnc.4

Select the position of the support lever (1). Position I: for hard and frozen snow. Attach the machine to the ground. - Position II: for normal snow conditions. - Position III: for uneven paths or for transporting the machine. The distance from the machine to the ground is greater.

Install the cutting plate (only for STH 953 W)

Pnc.10

When the machine is on a level surface, the machine (1), the cutting plate (2) and the wheels (3) must all touch the ground at the same time.

- If the cutting plate is set too high, it may throw snow backwards. - If the cutting plate is set too deep, it will wear out quickly. Tip the machine back. → Loosen the knobs (5). → Set the cutting plate higher or lower and retighten. Tip the machine back, check the setting and repeat if necessary.

Adjusting the skids (not for STH 953 W)

Pnc.7

With the skids (1), the distance between the ground and the cutting plate (5) can be set so that parts of the ground (e.g., soil, stones) are not picked up.

→ Machines with tracked drive: Move the support lever to position II. Loosen the knobs (2) on both sides of the machine. → Set the skids depending on the ground surface: lower for uneven or loose paths, higher for even paths. → Tighten the skids with the knobs (2) so that the skids touch the ground evenly from below.

Operation

Safety instructions

Danger

Danger of injury!

Do not allow people, especially children, and animals to enter the danger zone. - Operate the machine only in perfect and safe condition. - Check the area where the machine will be used and remove all objects that could be caught up and thrown out by the machine. Work only in sufficient light. - Move the machine only at walking speed. - Work slowly and carefully, especially on uneven or unsecured paths or when reversing. - Set the distance between the housing of the auger and

Check the device to ensure that no foreign objects (for example, stones) have been thrown out of the device.

Danger

Danger of injury from impact gas! The internal combustion engine may only be used in the open air.

Note

Observe national/municipal regulations regarding operating times (otherwise, contact the competent authority).

Danger

Prolonged use of the device may lead to circulatory disorders in the hands caused by vibration.

It is impossible to specify the exact duration of use of the device, as this depends on several factors:

- Personal predisposition to poor blood circulation (frequent cold fingers, tingling in the fingers). Low ambient temperature. Wear warm gloves to protect your hands. - A firm grip impedes blood circulation. - Continuous work is worse than work with pauses.

If the device is used intermittently, we recommend a medical examination when the corresponding symptoms reappear (e.g., tingling in the fingers, cold fingers).

Tips for snow removal

• Remove snow immediately after snowfall; later, the layers freeze and make the removal work more difficult.
• If possible, remove snow in the direction of the wind.
• Remove snow in such a way that the cleared strips overlap slightly.

Working on slopes

Danger! Danger of injury! The device is intended for use on sufficiently steep slopes.

Do not use the device on slopes with a gradient of more than 20%. Work carefully, especially when changing the direction of movement. Move the device up or down the slope, but not across it. Pay attention to obstacles, do not work near cliffs.

Setting the throwing distance

Fig. 9

Danger

Danger of injury! Do not set the chute (2) or the ejection opening (3) in the direction of people, animals, windows, cars, or trees.

Setting the ejection direction

Only STH 953 W:

Set the ejection direction (3) by turning the handle (Fig. 1, item 7). Only STH 953 W: Turn the ejection chute (3) using the handle (4) to set the direction.

Note

Do not use the handle (4) to lift the device.

Setting the throwing distance

The further the cover (2) is turned, the higher and further the snow will be thrown.

Device with handle:

HaxaBvpeepdpyar(pnc.1,no3.5), yTo6bIyCTaHOBnTb KpbIiKy (2) Bblue n hao6opot. ■Pn6op 6e3 pyKoTkn: OcB6oDHTb KHOJky (1) u yCTaHOBuTb KpbIuKy (2) no Heo6xoDIMOCTu Bblue HnHxke.

3anyck DnBntaTeTn

Pnc.3

→IpeπειδκπηγataúneɪnpoʊntaβpykoBOdCTBO npoɪn3BOdNTeŋMAOTopaⅠOICNθb3OBaHIO NOC6eHHO pInHmTaB BO BHmHaHne IpaBnla6e30NaCHOCTN. → Ipeed 3anyckom ocB6oOuNTb MyqTy/ pbHar cuenIeHnuepeBraHOro npB0Da n pbHar cuenIeHnXoOBorO npB0Da. →PpOBepntb coepxKmoe 6aka u ypoBeHb Macna, npn Heo6xoIMOCtN DOINTb MaCIO N TOONBO (CM. "PyKOBOCTBO NO MOTOPy").

yka3aHue

Y HekomopbIX ModeneHem dpocceIbHO2O pbIa2a, Yucno obopomoe ycmaHaJIueaemc aemomamUeCKu. DeusameJIb 0ce2a paBomaem Ha onmumJIbHbIX obopomax.

3anyck npn nomoynyckOBoro shypa

→ NObepHyTb KpaHn Knoaun TOnnBa,ecnn HmeeTcB No3nUOn/OPEN" → YCTaHOBnTb KOIIaYOK CBeUH 3aXnRAHnHa CBeYb. He STH 953 W: YcTaHOBtB DpOcCenbHbI pbUar,ecn NMeETCb,NIOJoxHeN6bICTpO".Y np6OpOB 6e3 DpOcCEJbHoro pbUara yCTaHOBtB BbIKNoHTaTeNb OCTaHOBa DBIrAtEnB No3uio,ON".

→ PnXoIOaHOM nyCe yCTaHOBNTb BO3dyHHy 3acJNoHky B noJoxHe,ON/CHOKE". BCTaBnTb KIIIOU B 3aMOK 3aKINrAHH. → Odn pa3 hkaTb BCNOMORAteJIbHoe cpeCTBO DnI XOJIOHOro NyCKA (noDCOC), npxXOJIOHOM DBIRATeNE OT ODHORO Do CEMn pa3 (B 3aBNCIMOCTNOT TUNa DBIRATeJIa). →MeIeHNONotaHybNyCKOBuShHyp CTapTepa Do OUyTUMORO COpOTnBNeHn,3aTEM DeHyTb ero 6bICTPO u CnMbHO.He No3BOJrTa bHpy CTapTepa 6bICTPO CMoTaTcra,a MeIeHNO OTBeCTNu ERO Ha3a. →Korda DBnraTeIb BKNIOueHBO3DyUHHyO 3acHOky NOCTEneHHO NepeBecTn B NcXoJHOe NOJOKeHHe,RUN/OFF".

3anyck 3JIeKtpocTapTePOM (Onu) (He STH 953 W)

Onachocmb

Onachocmb npaackehmokom.

He ucnonb3o8amb 3neKmpocmapmep 60 bpeMdoxkdo. IpoBepbme,3auiueHa nI 3neKmpocemb aBmomamueckum 3aumhBM bIKIOuyameM.B npomueHOM cnyae bI3eamb 3neKmpuka umobbI mom ycmaHOBU coomemcmeyouu aemomamueckn npedoxpahumeB.

IIOKIOHHe 3eKToCtApTepa K CETN IcNoIb3OBAbT ToIbKO yDNHNHTeIN (HE BXoNT B KOMnJEKT), KOTOpBle npNCnoc6JHeHb IINcNoJIb3ObaHHaN NOd OTKpbITbIM He6om N IMeHOT 3aUNTHOE COeDInHeHne.

Hanpimep,do MaKcMaJIbHOI dINHbI 50 M: -H07RN-F 3x1,5 MM 2do-25 C -H07BQ-F 3x1,5 MM 2do-40 C

• Before starting, check the fuel and oil levels and the machine for damage. The inspection must be carried out by a qualified electrician. Never start the machine with damaged parts.

△Prevention

If the electric starter is not connected properly, damage may occur to the device or its surroundings. Check that the electrical installation is carried out according to the instructions on the nameplate with data and is protected by the appropriate fuse.

→ Turn the fuel tap, if present, to "ON/OPEN" → Set the choke lever to the closed position. → Set the throttle lever, if present, to "fast". For devices without a throttle lever

Set the stop switch to "ON". Insert the key into the ignition lock, but do not turn it. → Connect the battery cable first to the battery connector, then to the socket. → For a cold start, set the air flap to the "ON/CHOKE" position. Press the auxiliary starting aid (choke) once or up to three times (depending on engine type) for a cold engine. → Hold the starter rope until the engine starts (max. 5 seconds). Wait at least 30 seconds before repeating the start attempt. → Once the engine is running, gradually move the air flap back to its original position, "RUN/OFF". → Disconnect the battery cable first from the socket, then from the electric starter.

Switching on/off the transmission

(Not for model 953 W)

Fig. 1

△Prevention

Switching on the device

Maneuvering/overcoming short distances.

Start the device. Select forward or reverse gear. Press and hold the clutch lever. → Slowly move the device.

Transport without its own drive

DANGER! Before operating the device, read all instructions carefully.

Turn off the engine. Remove the ignition key and remove the spark plug cap. → Let the engine cool. Empty the fuel tank. → Transport the device on a vehicle, in a horizontal position. Secure the device against slipping or rolling.

Shutdown

Danger

Danger of explosion!

• Tilting and turning over of the open flame is prohibited. Make sure that fuel does not come into contact with hot surfaces.

If the device is not used for more than one month, please follow the following steps:

→ Prepare the engine (see engine manual). Empty the fuel tank. Clean the device. → Spray all metal parts with rust preventive oil and lubricate them with oil. → Store the device in a dry and clean room.

Maintenance and technical service

Motor oil (4) during operation with

heavy load or high

ambient temperature

Technical service work

maintenance

Before starting the device, read all instructions.

- Turn off the engine.

Remove the ignition key and wait for the engine to cool down.

- Let the engine cool down.

Accessories and spare parts

Only use accessories and spare parts that have been approved by the manufacturer. Using original accessories and spare parts guarantees you reliable and trouble-free operation of the device.

Cleaning the device

Place the device on a firm, level and horizontal surface. Remove any stuck-on dirt. Clean the device with a soft brush and let it dry. Clean the motor with a cloth.

Lubricating the device

Lubricate all

rotating and moving parts with oil.

Setting the pressure in the covers

(not for model 953 W)

B3pIeOonachocmb! Maximum allowable air pressure must not exceed 1.4 bar.

Recommended air pressure in the covers is approximately 1 bar.

Engine maintenance

See the engine operating manual

Adjusting the clutch of the servo drive

drive

(not ETH 953 W)

Fig. 2

Checking the clutch condition:

Press the clutch lever (1) forward (direction I), while pressing the rubber (3). The clutch cable (5) should loosen slightly. Otherwise, loosen it (see "Adjusting the clutch cable"). Release the clutch lever (1). The clutch cable (5) should have no play, but should not be too tight. Otherwise, adjust the setting (see "Adjusting the clutch cable"). →The clutch lever (1) must be pressed all the way down. Otherwise, the clutch cable is too tight and must be loosened (see "Adjusting the clutch cable").

Additional control (see

"Working with the device"):

→With the engine running, engage the servo drive for 10 seconds. Release the clutch lever; the reserve shaft can no longer rotate.

Adjusting the clutch of the travel drive

(He STH 953 W)

Fig. 1

For tracked operation: Set the lever to position III. → Switch the lever to a higher forward gear (higher number). Push the machine forward with the clutch lever released. While pushing, move the lever to the fastest forward gear, then to the fastest reverse gear. → If resistance is felt while pushing or shifting, reduce the track tension (see "Adjusting track tension"). Push the machine, then engage the clutch lever. The wheels/tracks should lock. If not, increase the track tension (see "Adjusting track tension"). → If adjustment is still not correct or raises doubts, see "Checking the drive".

Adjusting track tension

(He STH 953 W)

Fig. 2

For tension mechanisms with adjusting nut (6): → To tighten: loosen locknut (7) and tighten adjusting nut (6) in the opposite direction. To loosen: loosen adjusting nut (6) and tighten locknut (7) in the opposite direction. For tension mechanisms with release spring (8): → Before installing the spring, it must be released, then re-engaged. The tension mechanism is correctly set if, when released, the spring extends by 2-3 cm. → To tighten: turn counter nut (9) upward. To loosen: turn counter nut (9) downward. For tension mechanisms with adjusting rod of the drive (10) or the PTO drive (11): → To tighten: loosen screw (A) depending on the adjusting rod, then turn it downward.

Install the adjusting plate and tighten screw (A) again. → Loosen: Loosen screw (A) depending on the type of drive, turn the adjusting plate up and tighten screw (A) again. (Not for STH 953 W) Danger of damaging the device! When tilting the device, make sure that it remains balanced and that no oil or coolant leaks into the machine space. Tighten the screws on the frame housing, otherwise the device may tip over. → When the clutch lever is released, all gears must be disengaged, and the friction wheel (2) must not touch the drive disc (3). Otherwise, loosen the clutch tension mechanism (see "Adjusting the clutch tension"). → For each gear, press the clutch lever, and the friction wheel must be in contact with the drive disc. Otherwise, increase the clutch tension (see "Adjusting the clutch tension"). → If necessary, clean the drive disc and the friction wheel. In this case, free the front parts from dirt. (Only for STH 953 W) If the engine runs unevenly at idle speed, tighten the V-belt (5). → If the clutch lever (1) has an additional hole (3b), insert the clutch pin (2) into the hole (3b) located above. → If the additional hole (located above) is absent or already in use, contact a specialized service. (STH 8.66 W, STH 10.66 W Crt, STH 10.71 W, STH 13.84 W) (Devices with gear shift) → Remove the spring washer (4) and the flat washer (5), pull out the sliding pin (6) from the hole (7). → Press down the switch lever (2), set the shift lever (3) to position "b".

Checking the sliding drive

Fig. 12

△Warning

Tighten the V-belt of the milling disc

Fig. 5

Setting the shift lever

Fig. 11 A

→Turn the sliding pin (6) so that the hole (7) can be aligned. Secure the sliding pin with the flat washer and spring washer.

Fig. 11B

(Devices with cable adjustment)

→Set the shift lever (3) to the fastest forward gear. Loosen screw (A) and press down the holder until the cable is taut. Tighten screw (A) again. →Check the correctness of the installation.

Note

This adjustment is necessary only if it is impossible to engage the highest gear (forward or reverse).

Adjust the track belt

Power, power measurements

Technical data, warranty service.

More detailed information you

will find in the separately supplied

engine manufacturer's manual.

Technical data

Type: 1.332-xxx, 1.335-xxx

Main directives EC 98/37/EC 89/336/EEC (+91/263/EEC, 92/31/EEC, 93/68/EEC) 2000/14/EC

Applied harmonized standards

EN ISO 12100-1

EN ISO 12100-2

EN ISO 14982

ISO 8437

Applied conformity assessment procedure

Procedure for assessing compliance

Appendix V

Sound power level dB(A) STH 953 W

STH 8.66 W, STH 10.66 W Crt, STH 10.71 W, STH 13.84 W)

Fig. 11 A

89/336/EEC (+91 / 263 / EEC 92/31/EEC, 93/68/EEC)

2000/14/EC

Harmonized standards used

EN ISO 12100-1

EN ISO 12100-2

EN ISO 14982

ISO 8437

STH 8.66 W, STH 10.66 W Crt, STH 10.71 W, STH 13.84 W)

Fig. 11 A

(machines with adjustable frame) -> Remove the spring pin (4) and washer (5), take the spindle nut (6) out of the bore (7).

-> Press the adjusting lever (2) downwards, switch the adjusting lever (3) to gear "6". Turn the spindle nut (6) so that the pin can be inserted into the same bore (7). Fix the spindle nut with the washer and spring pin.

Figure 11 B

(with towing hitch)

-> Shift the gear lever (3) to the fastest forward gear. -> Loosen screw (A) and press the bracket downwards to tension the towing hitch. -> Retighten screw (A). Check the correct adjustment.

Warning

Type: 1.332-xxx, 1.335-xxx

Subject of the EC Directive:

98/37/EC

89/336/EEC (+91/263/EEC, 92/31/EEC, 93/68/EEC

2000/14/EC

STH 8.66 W, STH 10.66 W Crt, STH 10.71 W, STH 13.84 W)

Fig. 11 A

89/336/EEC (+91/263/EEC, 92/31/

EEC, 93/68/EEC)

2000/14/EC

(STH 8.66 W, STH 10.66 W Crt, STH

10.71 W, STH 13.84 W)

Figure 11 A

(machines with levers)

-> Remove the plug (4) and washer (5), and take the spindle nut (6) out of the bore (7). -> Press the arm (2) downwards and set the gear (3) to speed "6". Turn the spindle nut (6) until the attachment can be inserted into the same bore (7). -> Secure the spindle nut with the washer plate and spring plug.

Figure 11 B

(machines with rope) Insert the gear (3) into the highest forward speed.

-> Loosen screw (A) and press the holder downwards until the rope is tensioned. -> Retighten screw (A). -> Check that the adjustment is correct.

Note

This adjustment is only necessary if the highest speed (forward or reverse) cannot be engaged.

Type: 1.332-xxx, 1.335-xxx

(STH 8.66 W, STH 10.66 W Crt, STH 10.71 W, STH 13.84 W)

Figure 11 A

STH 8.66 W/STH 10.71 W/STH 13.84 W