North Star M1108D Owner's Manual page 28

3. Spark arrestor
As specified in spark
muffler
arrestor muffler
manual
Periodic Maintenance
7. Dispose of used oil at an oil recycling center. Used hydraulic oil
is hazardous waste.
8. Extend and retract wedge 5 (five) times to purge air from the
system.
9. Check hydraulic oil level and fill if necessary.
If the engine is equipped with a spark arrestor muffler, clean and
inspect it regularly (follow manufacturer's service instructions).
Replace if damaged.
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