10
XI.) Adjust Pressure
The unloader valve regulates the operating pressure of
the pump. You can change the pressure by turning the
adjustment
knob on the unloader. The maximum
pressure is set at the factory and locked.
WARNING: Do not alter the unloader valve’s
maximum pressure. Excess pressures could cause
serious injury and/or pump damage. Any alteration
other than turning the adjustment knob will void
your warranty.
You can install an optional pressure gauge from
Northern Tool and Equipment Co. p/n 53618(gauge
reads in PSI) to your pressure washer. To order call
(800) 556-7885.
A.) Follow Shut-Down Instructions.
B.) Cut away decal from hole(shown below).
C.) Remove plug.
D.) Apply teflon tape to threads.
E.) Thread pressure gauge into port.
XII.) Cleaning
WARNING: Wear eye, ear, hand, foot and skin
protection at all times while operating this pressure
washer.
DANGER: Do not point the spray wand at yourself or
at any person. Bodily injury may result from water
under high pressure.
CAUTION: Be careful on painted or delicate
surfaces. The pressure may damage the surface if
the nozzle is too close.
IMPORTANT: Your spray gun is equipped with a
built-in trigger safety latch to guard against
accidental trigger actuation and potentially
dangerous high pressure spray. Rotate the safety
latch to the locked position when not spraying.
A.) Hold the lance with two hands, have a sturdy stance.
B.) Point lance at dirty surface and squeeze trigger.
C.) Wash from the bottom to the top, using side to side
motions. This washes away heavy dirt and allows the
detergent to soak as you work toward the top.
D.) Use the width of the spray pattern to wash in a wide
path. Overlap spray paths for complete coverage.
E.) The nozzle should be 12” to 24” from the work,
closer for tough areas.
F.) Small parts should be washed in a basket so the
pressure does not push them away. Larger, light
weight parts should be clamped down.
G.) The pressure washer is set to the maximum rated
pressure when it leaves the factory. There are two
easy ways to lower your pressure.
a. Turn the black unloader knob counter clockwise
b. Reduce the engine speed.
XIII.) Shut-Down Instructions
WARNING: Do not leave an operating machine
unattended. Always shut the machine OFF and
relieve the pressure before leaving the machine.
Never disconnect the high pressure hose from the
pump or spray gun while the system is pressurized.
Depressurize the system by squeezing the spray
gun trigger after the engine is turned OFF.
A.) Turn engine OFF.
B.) Close engine fuel line valve.
C.) Turn water supply OFF.
D.) Actuate spray gun trigger to relieve system pressure.
E.) Remove garden hose.
F.) Remove pressure hose.
Pressure
Adjustment
Knob
00479
00417
Safety
Hole covered
by decal
Pressure Gauge
#53618
