Hawk Industries Hawkjaw Sr. Manual ALS Serial Numbers 1 to 100 - Manual (Page 85)

Trouble Shooting
Symptom Remedy
z
Make sure the hydraulic power unit is shut down.
Press the Grip button repeatedly to bleed hydraulic
pressure. Access the main hydraulic block. See
Maintenance & Repair, p. 66, Drawings p. 114, 128.
Check if air is reaching the Spin Make/Break
hydraulic valve VM3. Push in the "E" stop button.
Turn the Selector switch to Make. Disconnect the
yellow Spin Make/Break air hose to hydraulic valve
VM3. To disconnect the air hose, push the hose and
collet ring into the valve pilot port. While holding
down the collet ring, pull out the yellow air hose.
Place your hand over the disconnected yellow air
hose, and pull out the "E" stop button. A steady
blast of air should come out of the hose. Turn the
Selector switch to Mouse Hole. No air should come
out of the hose. Turn the Selector switch to Break.
No air should come out of the hose. If any of these
tests fail, replace the air logic system. See
Drawings, p.126. If the air signals are correct,
replace the Spin Make/Break hydraulic valve VM3.
See Drawings, p. 114, 128.
z
For break out, if the drill pipe connection is not
broken, the spinner is unable to spin the drill pipe.
Break out the connection, and spin again. See
Operate, p. 28.
The spinner will only spin out
regardless of the Selector switch
setting.
While performing up to par, the
Spinner clamps on the drill pipe
tube, but the drill pipe does not
spin.
Trouble
Shooting
Troubleshooting 85
Spinner
(cont.)
Spinner
Performance
Continued on next page.