North Star M157594AF.1 Owner's Manual page 43

Change pump oil
Maintain burner's
fuel filter/water
separator
Maintenance & Repair
Change the pump oil after the first 40 hours of use, and then after every 3
months or 500 hours of use after that.
1. Open oil drain valve on pump.
2. Drain pump oil into suitable container and dispose of responsibly.
3. Close oil drain valve.
4. Make sure unit is sitting level. Fill pump with 18 oz. of SAE30 non-
detergent oil or Cat Pump Oil Item #22158 to middle of sight glass (or at
the indicator line on the dip stick if equipped).
5. Replace oil fill cap.
Sight glass
Oil drain valve
Drain water from burner's filter bowl as needed, and replace filter after
every 500 hours of use or as needed.
1) After each use of the burner, visually check the filter bowl. If any water
has accumulated, drain it via the water drain at the bottom of the bowl.
2) After every 500 hours of operation, empty the burner's fuel tank in order
to remove the filter bowl and inspect the fuel filter/water separator.
Replace filter as needed.
Important: Always empty
the burner's fuel tank
before removing the filter
bowl. There is no shut-
off valve between fuel
filter/water separator
and burner's fuel tank.
Filter bowl
Water drain
Figure 16
43
Oil fill cap
Figure 17