Safety Features; Maintenance Instructions - NorthStar M157310K.1 Installation, Operation And Maintenance Manual

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.
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
0° Nozzle
15° Nozzle
25° Nozzle
40° Nozzle
Chemical Nozzle
Steam Nozzle
O-Ring for Hose
Pump Oil
Chemical Injector
Spray Gun
Lance Extension
50' Pressure Hose
Pump Seal Kit
Pump Valve Kit
Electrode Kit
Fuel Pump
Flow switch
Igniter
Burner Nozzle
Fuel Filter Element

Safety Features

FIG01013

Maintenance Instructions

Part Number
782122
782120
777844
778737
778949
778945
30784
4043
31935
31915
31930
38525
GPK28
GPK1
5780
2184402
784621
51776
21463
RCR12T
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 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.
Maintenance Schedule
What to Check
Inlet Filter
Tires
Hoses
Bolts
Cleaning The Inlet Filter
12
Thermostat
When To Check What to Do
Each Use
Each Use Check Pressure
Each Use Check for Wear
Each Use Check for Loose
Clean
Bolts