JT520 Operator’s Manual Conduct a Bore - 81
Surface Drill Head
CMW
Surface Drill Head
1. Guide drill head to target pit or up through surface. Make all bends gradual. See “Recommended Bend
Limits” on page 51.
2. Clean area around exit point.
3. If using tracker control mode, tracker operator turns off tracker to disable drilling unit thrust/pullback
and rotation hydraulics. Tracker operator waits for green light to enter pit and change tools.
If not using tracker control mode, tracker operator signals to drilling unit operator to stop engine before
changing downhole tools.
4. Turn fluid flow control to off position as soon as drill head emerges.
5. Clean drill head especially around threads.
6. Disconnect EZ-Connect joint or use quick wrench to remove drill head. Keep threads clean. See
“Quick Wrench” on page 107.
Moving tools will injure or kill. Shut off drill string power when anyone can
be struck by moving or thrown tools. Never use pipe wrenches on drill string.
To Next Page
Loading...
