User Manual

JT20 Operator’s Manual Systems and Equipment - 127
Downhole Tools
CMW
®
Installation
Remove all paint from mating surfaces before attaching any bit to housing. Install screws (p/n 107-277)
and tighten to 120 ft•lb (163 N•m).
Beacon Housings
Lid Installation
1. Clean all threads, bolt holes, and mating surfaces.
2. Use removable thread locker (Loctite® 242 or equivalent), if desired.
3. Tighten bolts to 60-70 ft•lb (81-95 N•m).
4. Repeat tightening sequence.
Soil Description
sandy soil sugar sand, blow sand, or other soils where sand is the predominant component
soft soil sandy loam
medium soil loams, loamy clays
hard soil packed clays, gumbo, all compacted soils
rocky soil chunk rock, glacial till, cobble, rip rap, gravel
soft rock soft limestone, sandstone, shale, coral, caliche
hard rock granite, schist, marble, hard limestone