Hawk Industries Hawkjaw Sr. Manual 100K-2GSR Serial Numbers 101 to 120 - Manual (Page 58)

58 Maintenance & Repair
Tools Required
Two 11/16" wrenches, Two 1 1/2"
wrenches
Changing the Grip Cylinders
E
CH RH
1. Make sure the HawkJaw is off the
drill pipe connection and in the
rest position on the derrick.
2. Shut down the Hydraulic power
unit.
3. Press the Grip button
repeatedly to bleed hydraulic
pressure.
4. Disconnect the Air power supply.
5. Push in the "E" stop (E).
6. Assume that there is still a load
on every actuator. Proceed with
caution.
Initial Steps
Top Grip Cylinder
1. Use the Two 11/16" wrenches to
slowly loosen the Rod side Hose
(RH). Check for fluid flow.
Bleed any pressure. Disconnect
the Rod side Hose (RH).
2. Use the Two 11/16" wrenches to
slowly loosen the Cap side Hose
(CH). Check for fluid flow.
Bleed any pressure. Disconnect
the Cap side Hose (CH).
Continued on next page.