Clean Inlet Filter; Perform Engine Maintenance; Change Pump Oil - NorthStar M157119E Owner's Manual

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WARNING: High Pressure Fluid
High pressure fluid discharge from leaks (even
pin-sized) or ruptured components can pierce
skin and inject fluid into the body. Injection injury
can result in blood poisoning and/or severe
tissue damage leading to infection, gangrene,
and possibly amputation.
Never use a finger or skin to check for
leaks.
Never operate machine with damaged or
missing hoses/parts.
Never attempt to repair a high-pressure
hose or component – Always replace it
with a part that is rated at or above the
pressure rating of this machine.
1) Check hoses, fittings, wand, trigger gun, and
connections for signs of wear, cracks, looseness, or
leaks. Replace as required.
2) Check and clean the nozzle orifice.
Water dripping,
spraying, or localized
moisture
Exposed wire
mesh due to wear

Clean Inlet Filter

Clean the inlet filter before each use.
WARNING: Filter Disposal
When cleaning filters, check whether dangerous
chemicals have been used with the filter and take
any precautions that may be recommended by
the manufacturer of these chemicals. Always
dispose of hazardous fluids per local, state, and
national guidelines.
1) Unscrew garden hose from water inlet (if
connected).
2) Use Allen wrench to remove garden hose coupler.
3) Remove glass filter screen.
Maintenance & Repair
Injection Hazard
Good
Bad
Bad
4) Remove filter screen.
5) Run water through filter screen to clean.
6) Reassemble.
Inspect Fuel System
Inspect the engine fuel system and check for leaks
before each use.
Do not start pressure washer until all needed repairs
have been completed.
WARNING: Filter Disposal
Gasoline fuel is highly explosive and fuel leaks
can result in fire or explosions. You can be
burned and seriously injured if the fuel system is
not properly hooked up or there is a fuel leak
when you start the engine.
Inspect the entire fuel system. Look for:
signs of leaks or deterioration
chafed or spongy fuel hose
loose connections
loose or missing fuel hose clamps
damaged fuel tank
defective gasoline shut-off valve

Perform Engine Maintenance

As specified in the Engine Owner's Manual.
Engine maintenance items include:
1. Changing oil
2. Air filter check/replacement
3. Spark plug cleaning and replacement
4. Fuel filter check/replacement
5. Inspecting and cleaning muffler (and spark
arrestor if equipped)

Change Pump Oil

Change the pump oil after the first 50 hours of use,
and then after every 3 months or 500 hours of use after
that.
1. Remove drain plug from pump.
25

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