Hawk-industries Hawkjaw Jr. Manual 65K-ALS Serial Numbers 4 to 9 Manuel d'utilisateur télécharger pdf (Page 63)

Changing the Grip Cylinders

Maintenance

& Repair

Tools Required

Two 11/16" wrenches, 15/16" wrench,

Screwdriver

Initial Steps

Middle Grip Cylinder

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, push, and pull all control

buttons repeatedly to bleed

hydraulic pressure.

4. Disconnect the Air power supply.

5. Assume that there is still a load on

every actuator. Proceed with

caution.

1. Adjust the Middle Wrench (MW)

to 3 1/2".

2. Unhook the retract springs (RS)

on the middle wrench using a pair

of pliars or vice grip pliars.

3. Swing the entire middle wrench

assembly out toward the left of the

unit

Maintenance & Repair 63

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Hawk-industries Hawkjaw Jr. Manual 65K-ALS Serial Numbers 4 to 9 Manuel d'utilisateur Page 63