North Star 157304, Installation, Operation And Maintenance Manual

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10
12. The pressure washer is set to the maximum rated
pressure when it leaves the factory. To change your
pressure, turn the unloader knob found inside the
machine counter clockwise.
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.
To Stop
1. If detergents were used, draw clean water through the
detergent inlet line to purge detergent. Failure to do
so may clog the chemical injector.
2. Turn the pump switch OFF.
3. Turn OFF the water supply.
4. Squeeze the trigger to relieve the system pressure.
Maintenance Instructions
WARNING: Unauthorized machine modification or use
of non-approved replacement parts may cause personal
injury and/or property damage and will void the
manufacturer warranty
.
All mechanical equipment, no matter how well designed,
will need repairs. A North Star pressure washer is no
exception. At times, a North Star pressure washer may be
inoperable because repairs are required. North Star
Customer Service will assist in these repairs as needed,
but if an inoperable pressure washer creates a major
expense to your business then we strongly recommend
the following:
1. Have someone on staff who is trained in the operation
of the pressure washer and is capable of making minor
repairs and performing all preventative maintenance
procedures as outlined in the provided manuals.
2. Keep a stock of recommended service parts for
maintenance and minor repairs.
Recommended Service Parts List
Following is a list of the service parts we recommend
stocking.
Description Part Number
Nozzle 5 Pack 778281
O-Ring for Hose 30784
Pump Oil 4043
Chemical Injector 31935
Spray Gun 319153
50’ Pressure Hose 32276
Maintenance Mode
Before performing any maintenance on the pressure
washer, it must be placed in maintenance mode.
A.) Turn off water supply
B.) Bleed water from system
C.) Disconnect power by unplugging power cord
and/or flipping circuit breaker OFF.
Maintenance Schedule
What to Check When To Check What to Do
Inlet Filter Each Use Clean
Hoses Each Use Check for Wear
Bolts Each Use Check for Loose
Bolts
Cleaning The Inlet Filter
WARNING: Check whether dangerous chemicals have
been used, and take precautions when handling filters.
A.) Unscrew inlet filter cap
B.) Remove Inlet filter
C.) Run water though to clean filter
Checking the Hoses
WARNING: Do not use a finger or skin to check for
leaks. Escaping fluid under pressure has sufficient force
to penetrate the skin, causing serious injury. Do not
operate the pressure washer if the hose is cracked,
worn, or leaking.
A.) Check all hoses for leaks
B.) Check all hoses of worn areas
+
-
Good
Bad
Bad
00426
Wire Mesh
Water Leak