9.801-296.0•Shark•Rev.11/12
OPERA
T
OR’S MANU
AL
PRESSURE
W
ASHER
12
MAINTENANCE
Daily:
To ensure a problem free system, simple visual checks
can be performed. Check for leaks in inlet supply,
pumping system, pump to heater hose, heater, spray
gun(s) and high pressure hose. Check for normal op-
erating functions and pump oil level/condition. Check
nozzle condition. If badly worn or leaking conditions
are found, qualified personnel should repair or replace
components with new original or equivalent manufac-
turers parts.
Check equipment for proper operation. Nozzle spray
should be uniform in flow, angle, and pressure. Clean
if nozzle is plugged and replace if worn. If a heavy
pulsation in the hose or spray is observed, repair of
the pumping system is required.
Weekly:
After the first week of operation, it is recommended
1 quart (1 litre) of motor oil be added to the heat ex-
changertankthroughthe1-1/4"illpipe.Thisoilcre
-
ates a vapor barrier and slows evaporation of water
in the tank.
Check heat exchanger water level. The level must be up
to the filler pipe neck. Add water if necessary. If cold wa-
ter has been added, heating may cause the expanding
water to escape through the filler plug. This will stop
after operating temperature has been reached.
Monthly:
Check system for operation. Automatic start/stop, hot
high pressure water, and smooth operation should be
noted.
Change oil in pump crankcase. Note the condition of
the oil when drained. If found to be creamy, water seals
in pump may have to be removed and replaced.
