Manual
JT9 Operator’s Manual Service - 149
1000 Hour
CMW
®
1000 Hour
Drilling Unit
Change Rotation Gearbox Oil
Drain oil at gearbox oil drain (2) every 1000 hours.
Replace drain plug. Fill with MPL at fill plug (1).
Replace fill plug.
Location Task Notes
DRILLING
UNIT
Change rotation gearbox oil MPL,
IMPORTANT: Drill frame must be level for
accurate reading.