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JT5 Operator’s <strong>Manual</strong> Service - 149<br />
As Needed<br />
Replace Saver Sub<br />
Check saver sub and replace as needed. See your <strong>Ditch</strong> <strong>Witch</strong> dealer for replacement parts.<br />
To replace<br />
IMPORTANT: Saver sub must mate up to every drill pipe. Check sub for thread wear. If saver sub<br />
threads are more worn than pipe threads, saver sub is damaging the drill pipe.<br />
1. Remove six bolts from saver sub flange.<br />
2. Remove and discard saver sub.<br />
3. Replace o-ring, if necessary.<br />
4. Install new saver sub.<br />
5. Apply Loctite 242 to bolts and install. Tighten<br />
in a cross pattern to 28 ft•lb (38 N•m).<br />
Check Drilling Fluid Pump Check Valve<br />
Check fluid pump check valve (shown) o-ring for<br />
wear and replace as needed.<br />
CMW
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