Systems and Equipment - 164 JT40/JT40 All Terrain Operator’s Manual
Downhole Tools
Installation
Remove all paint from mating surfaces before attaching any bit to housing. Install screws (p/n 107-277)
and tighten bolts to 120 ft•lb (163 N•m).
Beacon Housings
Rockmaster
®
Lid Installation
1. Clean all threads, bolt holes and mating
surfaces.
2. Follow tightening sequence (shown).
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
cobble rock chunk rock, glacial till, cobble, gravel
soft rock sandstone, shale, coral, caliche, chaulk
medium rock limestone, caliche, sandstone, shale
hard rock granite, schist, marble, hard limestone
IMPORTANT: Lid bolts are one-time-use parts.
Install new bolts each time lid is installed.
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