Connect Hoses, Water Supply, And Spray Nozzle - North Star 1572041 Owner's Manual

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 Schedule Summary" section.
Refer to the engine owner's manual for engine
maintenance instructions.
Connect Hoses, Water Supply, and Spray
Position pressure washer for use
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. The bucket must fill
faster than the times listed in the table below.
Model Time to fill 5 gallon bucket
1572041
1572042
Nozzle
72 seconds
46 seconds
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.
Pressure Washing with a Low Flow Water
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 do not kink.
 Never allow tank to run dry.
To connect an external feed tank, follow the steps
below:
1. Customer will supply the following:
a. 200 gallon tank or larger water feed
tank
b. ¾" connection hose no longer than 6 ft.
c. ¾" fittings. Do not use 90° elbow
fittings.
2. Make sure that the bottom of the water feed
tank is level or higher than the pump inlet.
3. Connect one end of the ¾" hose to the water
tank.
4. Connect the other end of the ¾" hose to the
pump. Make sure the connection hose will not
kink.
5. Fill the tank to desired level.
18
Supply