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9.800-087.0 • 8.941-124.0 • 8.941-459.0 • 8.919-016.0 • Rev. 04/19
11
PRESSURE WASHER Troubleshooting Guide
PROBLEM POSSIBLE CAUSE SOLUTION
ENGINE STRAINS
UNDER LOAD
Engine governor misadjusted Readjust governor on engine. Take to local
engine representative for adjustment.
Incorrect spray nozzle Install proper nozzle size (See serial plate
for proper size).
Obstruction in spray nozzle Remove obstruction.
Misadjusted unloader valve Contact local dealer or technical support.
Engine low or out of oil Check oil level.
Pump low or out of oil Check oil level.
Obstruction in hose, fitting Clean or replace hose, fitting.
Gasoline engine altitude The gasoline engine is preset for opera-
tion at altitudes below 1000 feet above sea
level. If operated at higher altitudes, it may
be necessary to install a high altitude main
jet carburetor. Contact your local authorized
engine sales and service center for details.
OIL SQUIRTS OUT OF
OIL CAP ON PUMP
Pump overlled with oil Maintain oil level at red dot on sight glass at
rear of pump or at top of notch on dipstick
(where applicable).
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 lock.
Obstruction in fuel filter Clean or replace fuel filter.
WATER DRIPPING
FROM UNDER PUMP
Piston packing worn Check and replace if necessary.
O-ring plunger retainer worn Check and replace if necessary.
Cracked piston Check and replace if necessary.
OIL DRIPPING
Oil seal worn Check and replace if necessary.
EXCESSIVE
VIBRATION IN
DELIVERY LINE
Irregular functioning of the valves Check and replace if necessary.
WATER LEAKING
FROM PUMP
PROTECTOR
Spray gun closed with machine
running 5 minutes or longer.
Open spray gun or turn off machine.
Excessive water supply pressure Place a pressure regulator at end of 50' gar-
den hose.
TROUBLESHOOTING
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