Hawk Industries Hawkjaw Jr. Manual 65K-ALS Serial Numbers 4 to 9 - Manual (Page 81)

Trouble Shooting
Symptom Remedy
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The filter element is clogged. Replace the filter
element. See Maintenance & Repair, p. 35.
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The air pressure is low. Increase the air pressure
to the HawkJaw.
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The hydraulic pressure is low. Increase the
hydraulic pressure.
Do not increase the pressure over 2600 psi, or the
hydraulic fluid will pass over the relief valve and
heat up the hydraulic fluid. This will cause damage
to the HawkJaw and to the pump, and will severely
shorten component life.
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Check to make sure the hydraulic power unit is
producing 2600 psi at 20-35 gpm.
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Check to make sure the hydraulic power unit
pressure compensa-
tor setting is at 2600 psi.
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The Spinner sequence valve SV1 could need
adjustment. See trouble shooting page 78 on
Spinner motor will not spin pipe (or spins too slowly)
when spinner doors close.
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The spinner chain is worn out. Replace the spinner
chain. See Maintenance & Repair, p. 48-49.
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The Drive Roller Sprocket Bearings are worn
out. Replace the Drive Roller Sprocket Bear-
ings. See Maintenance & Repair, p. 52-53.
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The Drive Rollers are worn out. If the Drive
Roller Groove is no longer visible, replace the
Drive
Rollers. See Mainte-
nance & Repair, p. 50-51.
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The Bottom Drive Shaft Flange Bearing is worn
out. Replace the Flange Bearing. See Drawings,
p. 92.
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The Reducer is worn out. If properly lubricated,
the reducer is a long term wear item. If all other
rotating members on the spinner work, inspect the
gears and bearings in the reducer for wear. Re-
place where necessary. See Drawings, p. 132.
Spinner performance and speed
not up to par, or spinner doors
close on the drill pipe tube, but
the pipe does not rotate down to
the drill pipe connection
shoulder. Spinner
Performance
Trouble
Shooting
Troubleshooting 81 Continued on next page.