Trouble shooting – Hawk Industries Hawkjaw Sr. 100K-2GSR M100K Serial Numbers 141 to 200 User Manual

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Trouble Shooting

There is a leak in the hydraulic system. See Trouble
Shooting.

Check to make sure the hydraulic power unit is
producing 2500 psi at 20-35 gpm.

Check that the HawkJaw is getting at least 100 psi air.

Check that the pump pressure compensator setting
is at 2500 psi.

Check that the hydraulic filter element is not com-
pletely full of contaminants. If the red indicator button
on the hydraulic filter body pops up, change the filter
element. See Filter Maintenance.

There is an inner seal leak in the cylinder. Make sure
the HawkJaw rests on the rig floor. Shut down the
hydraulic power unit. Push the Grip button repeat-
edly to bleed all hydraulic pressure. Push in the “E”
stop button. Disconnect the Raise/Lower cylinder
Hanger Eye from the hanging cable. See Installation
& Drawings. Place the Raise/Lower cylinder Rod side
end on the rig floor. Pull out the “E” stop button.
Turn on the hydraulic power unit. Push in the Lower
button, and hold down the Lower button. While hold-
ing down the Lower button, check for Raise/Lower
cylinder piston seal integrity. Make sure no bodily
parts are in the extension path of the cylinder rod.
Slowly loosen the HawkJaw Rod side Leader hose.
Check for fluid flow. If there is a piston seal leak,
fluid will flow with volume out of the Rod side leader
hose. Replace the seals. See Drawings. Replace the
cylinder if necessary. See Drawings. Push and hold
the Raise button. After the Raise/ Lower cylinder has
fully retracted, check for Raise/ Lower cylinder piston
seal integrity. Make sure no bodily parts are in the
extension path of the cylinder rod. Slowly loosen the
HawkJaw Cap side Leader hose. Check for fluid flow.
If there is a piston seal leak, fluid will flow with vol-
ume out of the Cap side leader hose. Replace the seals.
See Drawings. Replace the cylinder if necessary. See

Hydraulic fluid heats up.

The Raise/Lower Cylinder moves
slower than usual, or the HawkJaw
sinks while it hangs..

Problem

Remedy

.
.

Trouble Shooting 73