Service - 198 JT100/JT100 All Terrain Operator’s Manual
Each Use
Downhole Tool
Lube Rockmaster
®
Tool
Lube Rockmaster tool before first use, every 8
hours, and after every bore.
1. Remove plug (shown) from tool body and
install zerk.
2. Inject WRG into zerk while rotating the bit.
3. Continue pumping until grease seeps into the
gap between the tool body and the bit.
4. Remove zerk and reinstall plug.
For Rockmaster tool 400-1200 only:
1. Remove plug (shown) from tool body and
install zerk.
2. Inject WRG into zerk.
3. Continue pumping until grease seeps into gap
between tool body and the bit.
4. Remove grease gun and step away.
Communicate to drill operator to rotate bit.
5. Repeat steps 2-4 until grease that seeps into gap between tool body and the bit is free from
contaminants.
6. Remove zerk and reinstall plug.
IMPORTANT: Do not use calcium-based
grease. Use only Ditch Witch
®
recommended grease or equivalent.
IMPORTANT: Do not use calcium-based
grease. Use only Ditch Witch
®
recommended grease or equivalent.
IMPORTANT: If more than one cup of drilling fluid is displaced while greasing, inspect and
repack bearings and replace seals.
j50om057w.eps
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