STH 5.56 W - Snow blower Kärcher - Free user manual and instructions

Frequently Asked Questions - STH 5.56 W Kärcher

USER MANUAL STH 5.56 W Kärcher

Line drawing of a lawn mower with handle and wheels (no text or symbols)

Line drawing of a snowman tiller with three blades and mounting flanges (no text or symbols)

Deutsch 8

English 16

Français 24

Italiano 33

Dansk 41

Norsk 49

Svenska 57

Suomi 65

Русский 73

Magyar 83

Čeština 91

Slovenščina 99

Polski 107

Hrvatski 115

Eesti 123

Technical line drawing of a snowman tiller with visible blades and housing (no text or symbols)

Line drawing of a snowman tiller with visible blades and wheels (no text or symbols)

STH 953 W

Line drawing of a lawn mower with handle and wheels (no text or symbols)

STH 10.66 W Crt

Technical line drawing of a snowman lawn tool with three blades and a central blade (no text or symbols)

STH 5.56 W

Line drawing of a snowman with three blades and a central bushing (no text or symbols)

STH 8.66 W / STH 10.71 W / 13.84 W

Line drawing of a snowman lawn tool with three blades and a central blade (no text or symbols)

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STH 953 W

8 1

STH 10.66 W Crt

Labeled diagram of a mechanical device with numbered parts for identification

STH 5.56 W

1 2 8 8 6 7

STH 8.66 W / STH 10.71 W / STH 13.84 W

2 6 8 4 5 1 8 3 7

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I 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50

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A 8 10 9 4 6 2 1 7 3 5 B 8 3 1 7 2 4 5 6 9 C 8 2 3 1 7 6 10 4 9 5

3 2 8 1 10 4 11 6 9 5 D

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4 3 1 E 8 2

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1 I II III

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10-12 mm 1 1 2 1

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1 3b 2

Technical diagram of a mechanical device with numbered parts and exploded view, likely for assembly or maintenance instructions.

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A 1 W 3 2 4 2

w 1 1 B 4 2 3 2

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A 2 1 4 3 B 2 1 3

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Technical diagram showing a mechanical assembly with labeled parts 4 and 5, including a close-up inset of a screw and a base.

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A 1 2 3 4 5 6 7 8

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12 13

Technical diagram of a lawn mower assembly with labeled parts and directional arrow indicating motion

Line drawing of a cylindrical mechanical component with stepped shafts and flanges (no text or symbols)

→ Rückwärts: R1-langsam/R2-schnell

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

Bild 11 A

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

2000/14/EG

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.
	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 and 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..
	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) prevent 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 engine.
→ Pull out the ignition key and the ignition plug.
→ Allow 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 the hot open surfaces.

- Fuel up only when the engine is switched off and is cold.

- Never tank up the fuel tank fully. 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 parths; 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!

• Keeps 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

Deeper the flap (2), so much higher and farther will be the snow discharge.

■ 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/ 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 mm ^2 up to -25 °C

-H07BQ-F 3x1.5 mm ^2 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 appliane and prevent starting problems due to humidity, let the engine run for a few minutes before switching it off (so that it gets dried).

→ Not STH 953 W: Turn gas lever, if there is one, to "slow". On machines without gas levers, set the engine stop switch to "OFF".

→ Pull out ignition key.

→ Turn fuel tap, if there is one, 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

→ 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 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

^1) See "Engine Instruction Booklet"
^2) Get these jobs done only from an authorised 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 troublefree.

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").

Addition 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 whole (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 clock-wise 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.	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.	Customer	Service
	Carburetor is overflowing.	Set the choke to "RUN/OFF" and start.	Operator
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 ventilation hole. Operator
	Carburetor out of alignment.	Adjust 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 switch-ing 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	cm^3	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.	m^2/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/s^2	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.

STH 8.66 W, STH 10.71 W, STH 13.84 W:

Figure 11 A

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

Figura 11 A

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

2000/14/CE

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

Fig. 11 A

(Maskine med gearstang)

Type: 1.332-xxx, 1.335-xxx

89/336/E∅F (+91/263/E∅F, 92/31/E∅F, 93/68/E∅F)

2000/14/EF

Stille inn bunnplate

(Kun STH 953 W)

Bilde 10

Still in glideskoene.

(Ikke STH 953 W)

Bilde 7

Still inn kobling for kjøring

(Ikke STH 953 W)

Bilde 1

(STH 8.66 W, STH 10.66 W Crt, STH

10.71 W, STH 13.84 W)

Fig. 11 A

89/336/E∅F (+91/263/E∅F, 92/31/E∅F,

93/68/E∅F)

2000/14/EF

→ STH 8.66 W, STH 10.66 W Crt, STH 10.71 W, STH 13.84 W:

Kontrollera kopplingsspak (se "Service-arbeten").

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

W, STH 13.84 W)

Bild 11 A

(Aggregat med kopplingsstag)

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

Kuva 11 A

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

2000/14/EY

Sovelletut harmonisoidut standardit

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)

Рис. 11 А

Тип: 1.332-xxx, 1.335-xxx

89/336/E3C (+91/263/E3C, 92/31/E3C, 93/68/E3C)

2000/14/EC

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

11. A. ábra

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

2000/14/EK

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

Obr. 11 A

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

2000/14/ES

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

Slika 11 A

(stroji s prestavnim ogrodjem)

→ Odstranite vzmetni vtič (4) in podložko (5), iz izvrtine (7) vzemite vretenasto matico (6).

→ Prestavno roko (2) pritisnite navzdol, prestavno ročico (3) preklopite v prestavo "6".
→ Vretenasto matico (6) obrnite tako, da se lahko zatič vstavi v isto izvrtino (7).
→ Vretenasto matico fiksirajte s podložko in vzmetnim vtičem.

Slika 11 B

(stroji s prestavnim vlekom)

→ Prestavno ročico (3) preklopite v najhitrejšo prestavo naprej.
→ Popustite vijak (A) in nosilec pritisnite navzdol, da se prestavni vlek napne.
→ Ponovno pritegnite vijak (A).
→ Preverite pravilno nastavitev.

Opozorilo

98/37/ES 89/336/EGS (+91/263/EGS, 92/31/EGS, 93/68/EGS) 2000/14/ES

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

Rys. 11 A

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

EWG, 93/68/EWG)

2000/14/WE

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

Slika 11 A

(strojevi s polugama)

→ Uklonite utikač opruge (4) i podlošku (5), a vretenastu maticu (6) izvadite iz provrta (7).
→ Krak (2) pritisnite prema dolje te mjenjač (3) postavite u brzinu "6".
→ Vretenastu maticu (6) okrenite tako da se nastavak može umetnuti u isti provrt (7).
→ Osigurajte vretenastu maticu podložnom pločicom i opružnim utikačem.

Slika 11 B

(strojevi s užetom)

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

93/68/EGZ)

2000/14/EZ

Primijenjene uskladene norme:

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)

Joonis 11 A

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

2000/14/EÜ

Diagram illustrating a mechanical device with three labeled steps: tool, component, and gear mechanism.

Diagram illustrating seven steps of car seatbelting and safety warning, with numbered instructions for each step.

STH 5.56 W

Diagram of a snowplow tractor with visible blades and wheels, showing mechanical components and motion direction (no text or symbols)

Technical diagram of a snowman tiller with labeled parts including blade, handle, and guide mechanisms

Technical diagram showing mechanical assembly steps with numbered instructions for lifting and mounting components

7. 8. 7. 9. "click" 3x

10. 11.

Line drawing of a snowman tiller with three blades and a central blade (no text or symbols)

STH 10.66 W Crt

Technical diagram of a mechanical device with labeled parts and directional arrows indicating assembly or motion.

Technical diagram showing mechanical assembly steps with numbered annotations for component identification

Technical diagram showing mechanical assembly with labeled parts and directional arrows indicating motion or assembly steps.

Technical diagram showing a snowman blade assembly with labeled components and a warning label in Chinese.

1.

Technical diagram of a snowman blade with labeled parts and directional arrows indicating tool path changes.

Technical diagram of a snowman with labeled parts and an inset showing a rope knot being inserted.

4.

6.970-052.0 6.970-387.0 6.970-970.0 6.970-766.0 6.970-819.0 6.970-817.0 6.970-946.0 6.970-950.0 6.970-387.0 6.970-381.0 6.970-708.0 6.970-387.0 6.970-931.0 6.970-937.0 6.970-938.0

6.970-387.0 7.312-005.0 7.303-204.0 6.970-766.0 7.303-204.0 7.312-005.0 7.311-510.0 A KARCHER 6.970-399.0 6.970-387.0 6.970-343.0 6.970-289.0 6.970-354.0 6.970-599.0 6.970-387.0 6.970-748.0 6.970-425.0 6.970-586.0 6.970-643.0 6.970-735.0 6.970-735.0 RECHTS RIGHT DROITE 6.970-736.0 LINKS LEFT GAUCHE 6.970-955.0 6.970-591.0 6.970-586.0 6.970-737.0 6.970-736.0 7.312-005.0 7.312-005.0 6.970-591.0 6.970-736.0 LINKS LEFT GAUCHE 6.970-764.0 6.970-780.0 6.970-780.0 07.08.2007

6.970-502.0 6.970-501.0 6.970-554.0 6.970-479.0 6.970-766.0 7.303-204.0 7.312-005.0 7.311-510.0 A KARCHER 6.970-502.0 6.970-501.0 6.970-554.0 6.970-479.0 6.970-774.0 6.970-750.0 6.970-834.0 6.970-392.0 6.970-289.0 6.970-343.0 6.970-387.0 6.970-748.0 6.970-354.0 6.970-599.0 6.970-387.0 6.970-568.0 6.970-643.0 6.970-735.0 6.970-735.0 RECHTS RIGHT DROITE 6.970-438.0 6.970-586.0 6.970-586.0 6.970-737.0 6.970-736.0 LINKS LEFT GAUCHE 6.970-736.0 LINKS LEFT GAUCHE 6.970-735.0 6.970-736.0 6.970-780.0 6.970-784.0 6.970-591.0 6.970-591.0 6.970-586.0 6.970-586.0 6.970-586.0 6.970-586.0 6.970-586.0 6.970-586.0 6.970-586.0 6.970-586.0 6.970-586.0 A D

6.970-357.0 6.970-502.0 6.970-501.0 6.970-479.0 A A KARCHER 6.970-834.0 6.970-342.0 6.970-343.0 6.970-757.0 6.970-967.0 6.970-758.0 6.970-540.0 6.970-541.0 6.970-539.0 6.970-440.0 6.970-736.0 6.970-512.0 6.970-447.0

07.08.2007

6.970-812.0 6.970-387.0 6.970-502.0 6.970-501.0 6.970-502.0 6.970-479.0 6.970-845.0 7.303-747.0 7.312-005.0 7.311-510.0 6.970-479.0 6.970-962.0 6.970-387.0 6.970-834.0 6.970-392.0 6.970-289.0 6.970-343.0 6.970-748.0 6.970-753.0 6.970-774.0 A B KARCHER 6.970-643.0 6.970-863.0 6.970-586.0 7.312-005.0 6.970-591.0 6.970-862.0 6.970-735.0 RECHTS RIGHT DROITE 6.970-736.0 LINKS LEFT GAUCHE 6.970-586.0 7.312-005.0 6.970-591.0 6.970-735.0 RECHTS RIGHT DROITE 6.970-764.0 6.970-780.0 6.970-736.0 LINKS LEFT GAUCHE 07.08.2007

6.970-801.0 6.970-387.0 6.970-502.0 6.970-501.0 6.970-479.0 6.970-898.0 7.303-204.0 7.312-005.0 7.311-510.0 A KARCHER 6.970-867.0 RECHTS RIGHT DROITE 6.970-866.0 LINKS LEFT GAUCHE 6.970-889.0 7.312-005.0 6.970-802.0 6.970-889.0 6.970-886.0 6.970-882.0 6.970-871.0 6.970-866.0 LINKS LEFT GAUCHE 6.970-752.0 6.970-752.0 6.970-392.0 6.970-893.0 6.970-387.0 6.970-748.0 6.970-753.0 6.970-753.0 6.970-289.0 6.970-343.0 6.970-964.0 6.970-774.0 6.970-753.0 6.970-917.0 6.970-067.0 6.970-889.0 7.312-005.0 6.970-802.0 6.970-785.0 07.08.2007