NorthStar M157117I.1 Owner's Manual page 39

Recharge and
maintain Battery
Perform engine
maintenance
Change pump oil
Maintenance & Repair
4) Replace air cap.
Inspect, recharge, and maintain battery according to your battery
manufacturer's instructions.
Do not store with battery charger always connected. Batteries that are over-charged
can boil themselves dry and produce excessive amounts of hydrogen, an explosive
gas.
Perform engine maintenance as specified in the engine owner's manual.
Engine maintenance items include:
1. Changing oil and oil filter
2. Air filter check/replacement
3. Spark plug cleaning and replacement
4. Fuel filter check/replacement
5. Inspecting and cleaning muffler (and spark arrestor if equipped)
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. Remove drain plug from pump.
2. Drain pump oil into suitable container and dispose of responsibly.
3. Reinstall oil drain plug.
4. Make sure unit is sitting level. Fill pump with 18 oz. of SAE 30 non-detergent
oil or Cat Pump Oil Item #22158 to middle of sight glass.
5. Replace oil fill cap.
OIL CAP
OIL SIGHT GLASS
PLUG
39
DRAIN HOSE
Fig157117-5