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WARNING: High Pressure Fluid
Injection Hazard
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.
Perform Scheduled Maintenance, as needed
Make sure that any other regular maintenance has been
performed as prescribed in this manual in the
"Maintenance & Repair" section.
1.
Refer to the engine owner's manual for engine
maintenance instructions.
2.
Make sure battery is charged. Charge as needed
according to your battery manufacturer's instructions.
Connect Hoses, Water Supply, and Spray
Nozzle
•
For detailed instruction on positioning your pressure
washer for use, turn to the "Initial Set-Up" section of
this manual and reference "Step 3: Select Suitable
Location".
•
Where no flammable vapors, dusts, and gases are
present.
•
Where there is adequate, unobstructed ventilation
airflow.
•
With adequate clearance from combustible materials.
•
On a firm, level, heat-resistant surface with good
drainage and nearby access to a continuous water
supply.
Attach Garden Hose to Water Inlet
1.) Make sure the water supply is clean. Debris can
cause excess pump wear and reduce performance.
2.) An insufficient water supply will damage your pump.
Make sure the water supply is steady and is 20%
over the rated flow of your pump. Use a stopwatch
to time how long it takes to fill a 5-gallon bucket with
your garden hose.
Operation
Model
1571493
3.) The water supply garden hose must have an inside
diameter of at least 5/8". If the hose is more than
100 ft. long, the diameter must be at least 3/4".
4.) The water source pressure must not exceed 115 psi
(8 bar).
5.) Always use a flexible rubber hose for your water
supply. Do not use rigid piping.
FIG06860
PUMP INLET
WASHER
GARDEN HOSE
Pressure Washing with a Low Flow Water Supply
If the water supply available does not meet the above
time-to-fill requirements, the nozzles will have to be
downsized to #3.0 nozzles. Failure to downsize the
nozzles will result in cavitation and damage to the pump.
To order NorthStar #3.0 nozzles, part number 38531, call
NorthStar Product Support at 1-800-270-0810.
Attaching Water Feed Tank (if desired)
Water may be supplied to the pressure washer either via
an external tank or via a standard tap water supply.
CAUTION: Inadequate Water Supply
Inadequate plumbing between a feed tank and the pressure
washer can cause damage to the pump from cavitation.
To avoid cavitation:
• Use ¾" hose and fittings or larger. Hose should
be shorter than 6 feet.
• Place feed tank so that bottom of tank is level or
higher than the bottom of the pump inlet.
• Place feed tank as close as possible to the
pressure washer so the connection hose is as
short as possible.
• Make sure the connection hose does not kink.
• Never allow tank to run dry.
19
Time to fill 5 gallon bucket
50 seconds
PUMP OUTLET
HIGH PRESSURE HOSE
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