Kärcher 1.107-270.0, Service Manual

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9.801-760.0 Service Manual, Catch Up
23
PRESSURE
W
ASHER
Tr
oub
leshooting Guide
PROBLEM POSSIBLE CAUSE SOLUTION
ENGINE OPERATES
FOR 15 MINUTES
THEN STOPS Not enough gas or engine oil Fill tank with gas. Check oil level.
Vapor lock developed by heat of day Keep gas tank full to avoid vapor locking.
Obstruction in fuel filter Clean or replace fuel filter.
ENGINE LACKS
POWER
Dirty air filter Replace air filter.
ENGINE FALTERS
Choke is opened too soon Move choke to halfway position until engine
runs smoothly.
WATER DRIPPING
FROM UNDER PUMP
Piston packing worn Call local distributor.
O-Ring plunger retainer worn Call local distributor.
Cracked piston Call local distributor.
OIL DRIPPING
FROM UNDER PUMP Oil seal worn or damaged Call local distributor.
WATER LEAKING
FROM PUMP
PROTECTOR
Spray gun closed with machine
running 5 minutes or longer Open spray gun or turn off machine.
Excess water supply pressure Place a pressure regulator at end of 50'
garden hose.
NO DETERGENT Detergent suction tube not properly
connected to machine Check connection.
Detergent is too thick Dilute detergent. For best results, use
manufacturers detergent.
Detergent filter valve is at lowest
setting Set detergent filter valve to a higher setting.
Filter on detergent suction tube is
clogged Run warm water through filter to remove
debris.
Damaged or clogged detergent suc-
tion tube Remove obstruction or replace detergent
suction tube.
A high pressure nozzle is attached. Replace with black detergent nozzle.
Discharge nozzle is obstructed Blow out or remove debris with fine needle.
GARDEN HOSE
CONNECTION
LEAKS
Loose fittings Tighten fittings.
Missing/worn rubber washer Insert new washer.
SPRAY WAND
LEAKS
Spray wand not properly attached Slide the spray wand into the gun. Turn the
wand collar clockwise onto the spray gun
threads until tight.
Broken o-ring Call local distributor and order an o-ring.
PUMP IS NOISY
Pump is sucking air Check that hoses and fittings are air tight.
Turn off machine and purge pump by
squeezing trigger gun until a steady flow of
water emerges through nozzle.
TROUBLESHOOTING
For Models: HD 3.0/27 G, HD 3.5/35 G, HD 4.0/40 G, HD 4.0/40Ge