Hawk Industries Hawkjaw Sr. Manual 100K-2GSR Serial Numbers 101 to 120 - Manual (Page 68)

Trouble Shooting
The spinner is adjusted too small for the drill pipe
tube. Adjust the spinner to the correct pipe size.
See Operation.
Adjust the spinner to the next smaller pipe size.
See Operation. If the Drive Rollers still touch, the
chain is severely stretched. Replace the chain. See
Maintenance & Repair.
Grease the spinner mount sliding block first and check
if symtom continues. See Maintenance & Repair, p.
47. If symtom continues, Adjust the Spinner push
cylinder valve (Spin Block port V1) slightly clock-
wise .
The spinner is adjusted too small for the drill pipe.
Adjust the spinner to the correct pipe size. See
Operation.
Use an allen wrench to tighten the Spinner Push
cylinder pressure reducing valve adjustment
counter-clockwise until the spinner does not force the
HawkJaw away from the pipe. While holding the
pressure reducing valve adjustment steady with an
allen wrench, lock in the adjustment by
tightening the valve lock nut. The pressure
reducing valve is located at Port V1 on the Spinner
hydraulic block. See Drawings.
Use an allen wrench to rotate the Spinner Door
sequence valve adjustment counter-clockwise until
the spinner doors begin to close as the HawkJaw
moves onto the pipe. While holding the sequence
valve adjustment steady with an allen wrench, lock
in the adjustment by tightening the differential valve
lock nut. The Spinner door sequence valve is located
at Port V2 on the Spinner hydraulic block. See
Drawings.
Use an allen wrench to rotate the Spinner motor
sequence valve adjustment clockwise until the doors
close before the spinner begins to spin. While hold-
ing the sequence valve adjustment steady with an
allen wrench, lock in the adjustment by
tightening the differential valve lock nut. The Spinner pops off the drill pipe tube when the
spinner rotates the pipe.
Spinner Drive Rollers touch when the spinner
clamps onto the drill pipe tube.
Spinner does not slide forward on the spin
mount block or does slide forward and closes
prematurely and bangs on pipe body while
closing.
Spinner chain hinders the correct alignment of
the HawkJaw on the pipe.
Spinner clamps on the pipe and forces the
HawkJaw back away from the pipe.
The spinner doors do not begin to close as the
spinner moves onto the pipe.
Spinner begins to spin before the spinner doors
close on the drill pipe tube.
68 Troubleshooting
Problem Remedy