JT100/JT100 All Terrain Operator’s Manual Service - 221
1000 Hour
1000 Hour
Location Task Notes
DRILLING
UNIT
Change hydraulic fluid and filters THF
Change ground drive gearbox oil 2 gearboxes, MPL
Change JT rotation gearbox oil 2 gearboxes, MPL
Change AT rotation gearbox oil 2 gearboxes, MPL
Change thrust drive gearbox oil 2 gearboxes, MPL
Change spindle brake oil THF
Change AT fluid pump oil PTF
Lube AT SaverLok® wrench collar and sliding output
shaft
EPS
Change rotation, thrust, and fluid pump remote charge
filter
Change engine drive belt
Replace diesel exhaust fluid (DEF) tank filter
LOADER/
DRIVER
Grease loader/driver swivel MPG
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