JT100/JT100 All Terrain Operator’s Manual Service - 217
200 Hour
200 Hour
Replace Drive Shaft
Replace drive shaft on AT Rockmaster housing (excluding 400-1200) every 200 hours as measured by
inner rotation hourmeter when rebuilding AT Rockmaster tool. See your Ditch Witch
®
dealer for parts.
250 Hour
Drilling Unit
Change JT Drilling Fluid Planetary Oil
Change every 250 hours. Remove oil at fill (1).
Add MPL until oil comes out level plug (2).
Replace plugs.
Location Task Notes
DOWNHOLE
TOOL
Replace drive shaft on AT Rockmaster
®
housing
(excluding 400-1200)
Location Task Notes
DRILLING
UNIT
Change JT drilling fluid planetary oil MPL
Inspect air intake system
LOADER/
DRIVER
Check swing drive gearbox oil level MPL
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