JT1220 Mach 1 Operator’s Manual Conduct a Bore - 105
Remove Pullback Device
CMW
Remove Pullback Device
The pullback device can be removed when the last pipe is on the frame. It can also be removed when a
target pit along the bore path has been reached. Remaining pipe is then pulled back and removed.
1. Press bottom of drilling unit throttle switch until engine is at low throttle.
2. Turn off drilling fluid.
3. Turn drilling unit engine off.
4. Clean pullback device.
5. Use quick wrench to remove pullback device. See “Quick Wrench” on page 129.
Moving tools will kill or injure. Shut off drill string power when anyone can
be struck by moving or thrown tools. Never use pipe wrenches on drill string.
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