Karcher STH 10-76 W - Manual (Page 22)

22 English
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.
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"). 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. Re-
move 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 vibra-
tion 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