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12-ENG
D20590
• Tilt unit and drain pump oil into appropriate
container.
• Fill pump with 10 ounces of R&O 150 oil. NOTE:
If unable to find R&O 150 oil, use 30W non-
detergent oil.
• Replace oil drain plug and tighten securely.
• Refill engine with oil and fuel. See Engine Oil on
page 8.
Purge Pump of Air and Contaminants
To remove the air from the pump, follow these
steps:
• Set up the pressure washer as described in
ASSEMBLY section and connect the water supply.
• Remove the wand extension from the spray gun.
• Pull the trigger on the gun and hold.
To remove the contaminants from the pump,
follow these steps:
• Set up the pressure washer as described in
ASSEMBLY section, connect the water supply.
• Remove the wand extension from the spray gun.
• Start the engine according to instructions in the
OPERATION section.
• Pull the trigger on the gun and hold.
• When the water supply is steady and constant,
disengage trigger and refasten the wand exten-
sion.
Engine Maintenance
Check Oil Level
• Oil level should be checked prior to each use or at
least every 5 hours of operation. To check oil see
Engine Oil on page 8.
Pressure Washer Maintenance
Check and Clean Inlet Screen: Examine inlet screen
on pump inlet fitting. Clean if clogged; replace if torn.
Check High Pressure Hose: High pressure hose can
develop leaks from wear, kinking, abuse. Inspect hose
each time before use. Check for cuts, leaks, abrasions
or bulging of cover, and damage or movement of
couplings. If any of these conditions exist, replace
hose immediately.
Check Chemical/Soap Hose: Examine the chemical/
soap hose and clean if clogged. Hose should fit tightly
on pump fitting. Check for leaks and tears. Replace
filter or hose if either is damaged.
Check Gun and Wand: Examine hose connection to
gun making sure it is secure. Test trigger by pressing it
and making sure it springs back into place when you
release it.
Pump Maintenance (Changing Pump Oil)
The pump on your pressure washer was shipped from
the factory with oil. The oil in your pump must be
changed every 50 hours.
• Run engine until it runs out of fuel. Otherwise, fuel
can leak out, creating a fire/explosion hazard, when
you tip engine.
• Disconnect spark plug wire and keep it away from
spark plug.
• Drain engine oil. See Changing Oil on page 8.
CAUTION: Used oil is a hazardous waste
product. Dispose of used oil properly. Do not
discard with household waste. Check with your
local authorities for safe disposal/recycling
facilities.
• Using a 5/16" Allen wrench remove pump oil drain
plug.
Oil Drain Plug