Hawk Industries Hawkjaw Jr. Manual 65K-ALS Serial Numbers 4 to 9 - Manual (Page 82)

Trouble Shooting
Symptom Remedy
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The Drive motor is worn out. With filtered
hydraulic fluid through a Hawk approved filter, the
Drive motor is a long term wear item. If all
other rotating members on the spinner work,
inspect the rotating group, bearings and seals for
wear. Replace where necessary. See Drawings, p.
134.
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The filter element is clogged. Replace the filter
element. See Maintenance & Repair, p. 35.
Check the lead-in pressure and tank lines for any
obstructions. Also check the quick disconnects
to see that they are securely tightened. A bad
quick disconnect can cause the Hawkjaw to mal-
function. Replace the faulty connector.
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The air pressure is low. Increase the air pressure
to the HawkJaw to at least 100 psi.
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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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There is a leak in the hydraulic system. Check for
any visual leaks in the hoses, fittings, manifolds,
cylinder rod heads, or cylinder rod wiper seals.
Replace necessary components. See Drawings, p.
114, 94, 96, 98, 100.
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There is a leak in the hydraulic system. Operate
the HawkJaw. Feel the outside of all actuators. If
a portion of the cylinder surface is too hot to leave
your hand on the cylinder, the leak is inside the
cylinder. Replace the cylinder seals. If necessary,
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. ( Cont.)
HawkJaw performance and
speed not up to par.
HawkJaw
Performance
82 Troubleshooting
Continued on next page.