Kärcher STH 953 W Gebrauchsanleitung Seite 22

Fault Possible cause
Engine does not Fuel tank empty.
start
Fuel idling for a long time.
Engine in cold state; choke not set to "ON/
CHOKE".
Gas lever no set to "fast" (not STH 953 W).
Engine stop switch not set to "ON" (machines
without gas levers).
Ignition plug not inserted.
Spark plug is dirty.
Spark plug is defective.
Carburetor is overflowing.
Engine is running Choke set to "ON/CHOKE".
erratically
Ignition plug is loosely inserted.
Fuel idling for a long time. Water or dirt in the fuel
system.
Ventilation hole in tank lid blocked.
Carburetor out of alignment.
Machine does not Shearing bolts torn off.
clear snow
Snail or discharge shaft is blocked.
Clutch tension for snail drive is not set properly.
V-belt loose.
V-belt torn.
Machinen does Clutch tension for travel drive is not set properly. Adjust clutch tension (see "Setting the clutch for
not run (not STH
953 W)
V-Belt is loose or torn.
Travel drive is coated with ice.
Friction wheel rubber is torn.
Excessive vibra- Loose parts or damaged snail.
tion
Gears can be Clutch tension for travel drive is not set properly. Adjust clutch tension (see "Setting the clutch for
switched with
great difficulty (not
Gear lever not adjusted correctly (not STH
STH 953 W)
5.56 W).
Travel drive is coated with ice.
Information about engine
The engine manufacturer assumes liability
for all engine-related problems as regards
output, output measurement, technical da-
ta, warranty and servicing. For further de-
tails, please refer the separate holder/
operator manual of the engine manufactur-
er.
22 English
Troubleshooting
Remedy
Refill the fuel tank.
Remove the old fuel in a suitable container in the
open (See "Engine Instruction Booklet"). Fill up
the tank with clean, fresh fuel.
Set the choke to "ON/CHOKE".
Set the gas lever to "fast".
Set the engine stop switch to "ON".
Insert the ignition plug into the spark plug.
Clean the spark plug (see "Engine Instruction
Booklet").
Replace the spark plug.
Set the choke to "RUN/OFF" and start.
Choke set to "RUN/OFF".
Fix the spark-plug connector properly.
Remove the old fuel in a suitable container in the
open (See "Engine Instruction Booklet"). Fill up
the tank with clean, fresh fuel.
Clean tank lid and ventilation hole.
Adjust the carburetor.
Replace shearing bolts (see "Replacing shear-
ing bolts").
Stop the engine, pull out the ignition plug. Re-
move the blockage.
Set clutch tension (see "Setting clutch for snail
drive").
STH 953 W: Tension the V-belt (see "Tensioning
the V-belt of the auger").
Not STH 953 W: Tighten V-Belt.
Replace V-belt.
travel drive").
Tighten the loose V-Belt. Replace torn V-Belt.
Remove the ice (see "Check travel drive").
Replace friction wheel rubber.
Stop the engine immediately, pull out the ignition
plug. Tighten loose screws and nuts. Repair
damaged snail.
travel drive").
Check switching lever (see "Setting the switch-
ing lever").
Remove the ice (see "Check travel drive").
of whom
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