M o d e l Z Q 1 2 7 / 2 5 Y D r i l l P i p e P o w e r T o n g
6. Common troubles and remedy
Common troubles
Reason
Remedy
Tong dies slip
Die groove fill with hard objects
Cleaning up sundries in the
groove
Dies over worn
Replace new dies
Tong body not level
Adjusting tong level (master
tong and backup tong)
Master tong head backup
tong head not in alignment
with the opening
Retaining pin can’t be contained by
reset knob axle
Turn the reset knob and reset
again
Master tong clamps well
while backup tong slips
The turning direction of jaw plate
frame of backup tong opposite to
the turning direction of the master
tong
Exchange the positions of the
two hoses.
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