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9.801-760.0 Service Manual, Catch Up
PRESSURE
W
ASHER
SER
VICE MANU
AL
26
TROUBLESHOOTING
For Models: HD3.0/27 GB, HD 3.5/35 GB, HD 4.0/40 GB
,
HD 4.0/40 GeB, HD 5.0/30 GB
PROBLEM
POSSIBLE CAUSE
SOLUTION
WATER OR OIL
LEAKING FROM
BOTTOM OF PUMP
A small amount of leaking is
normal
If excessive leaking occurs, call local
distributor.
PRESENCE OF
WATER IN PUMP OIL
Water sprayed at machine
Change oil. Direct spray away from ma-
chine.
High humidity in air
Check and change oil twice as often.
Piston packing worn. Oil seal worn.
Call local distributor.
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.