NorthStar M157310K.1, Installation, Operation And Maintenance Manual

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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.) Turn off engine and disconnect the spark plug
cable.
D.) Disconnect battery.
Safety Features
I.) Safety Relief
The safety relief valve is a backup safety feature. If the
unloader malfunctions, the safety relief valve will open
and relieve system pressure.
WARNING: If the safety relief valve ever discharges
water, turn the engine off and do not use the
machine. See a dealer or call Customer Service at
1-800-270-0810.
II.) Thermostat
The adjustable thermostat is another safety feature. If
the discharge water reaches the desired temperature
setting, the burner will cycle off until the water
temperature is below the desired temperature setting
and then it cycles the burner back on for firing.
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
0
°
Nozzle
782122
15
°
Nozzle
782120
25
°
Nozzle
777844
40
°
Nozzle
778737
Chemical Nozzle 778949
Steam Nozzle 778945
O-Ring for Hose 30784
Pump Oil 4043
Chemical Injector 31935
Spray Gun 31915
Lance Extension 31930
50’ Pressure Hose 38525
Pump Seal Kit GPK28
Pump Valve Kit GPK1
Electrode Kit 5780
Fuel Pump 2184402
Flow switch 784621
Igniter 51776
Burner Nozzle 21463
Fuel Filter Element RCR12T
Cleaning The Inlet Filter
FIG01013
Thermostat
Maintenance Schedule
What to Check When To Check What to Do
Inlet Filter Each Use Clean
Tires Each Use Check Pressure
Hoses Each Use Check for Wear
Bolts Each Use Check for Loose
Bolts