North Star 1574210, Owner'S Manual, Page: 25 / 64

25
Maintenance & Repair
•
Carefully check hoses, fittings, wand, trigger gun
and connections for signs of wear, cracks,
looseness, or leaks.
•
Replace before use if damaged or not functioning
properly.
•
Check and clean the orifice of nozzle to be used.
Clean Inlet Filter for Garden Hose
•
Unscrew garden hose from water inlet (if
connected).
•
Remove filter screen from water inlet.
•
Run water through filter screen to clean.
•
Reassemble.
Check Tire Pressure
•
Remove air cap on tires.
•
Check tire pressure.
•
If needed, fill tire to 30 psi. Do not over inflate.
•
Replace air caps.
Change Pump Oil
After the first 40 hours of use, and then every 3 months
or 500 hours of use after that.
•
Remove drain plug from pump. (See
Fig.1574210_6
earlier in the manual.)
•
Drain pump oil into suitable container and dispose
of according to local regulations.
•
Reinstall oil drain plug.
•
Make sure unit is sitting level. Fill pump with type
of pump oil specified below. (
See “ Specifications ”
section of this manual to determine the type of
pump that came equipped with this pressure
washer)
a. For GP pumps: Use SAE30 non-detergent oil
or Pressure Pump Oil Item #4043
b. For Cat pumps: Use SAE30 non-detergent oil
or Cat Pump Oil Item #22158.
•
Replace oil fill cap.
Drain Burner’s Fuel Filter/Water S eparator
Drain water from burner’s filter bowl as needed. Replace
filter after every 500 hours of use or annually.
•
Important : Always empty the burner’s fuel tank
before removing the filter bowl.
•
Check the filter bowl after each use of burner.
Drain accumulated water via water drain at the
bottom of the bowl.
•
After every 500 hours of operation or annually,
empty the burner’s fuel tank to remove the filter
bowl and inspect the fuel filter/water separator.
Descale Heating Coil
If pressure washer is used where the water source
contains a high mineral content, or is consider
ed “Hard
Water”, scale can build up inside the heating coil tubing.
Scale deposits will decrease the performance of
pressure washer by reducing both water flow and water
pressure. The use of a water softener and an additional
strainer may be needed in areas that have high mineral
content in the water supply. More frequent descaling
may be required if higher temperatures or steam mode
is used regularly. Descale the coil tubing more
frequently if you detect a decrease in pressure or
temperature.
CAUTION: De-scaling burn hazard
Do not run the burner while de-scaling.
Fig.1574210_11
WATER DRAIN
FILTER BOWL
DIESEL FUEL TANK
Bad
Exposed wire mesh
due to wear
Water dripping or
spraying, or localized
moisture
Good
Bad
Figure 15 – Hose Inspection