Hawk Industries Hawkjaw Jr. Manual 65K-2GJR Serial Numbers 10 to 20 - Manual (Page 48)

Part Numbers
48 Maintenance & Repair
Changing the Drive Roller Sprocket Bearings
Tools Required
Four 1/4"-20 x 1 1/2" Hex Tap SS
(Part # 999-805867), 7/16" wrench, 3/
4" wrench
Drive Roller Sprocket Bearings
1. Use the 3/4" wrench to remove all
Bearing Cap Bolts (1).
2. Remove the Bearing Caps (3) and
Bearing Seals (5).
3. Use the 7/16" wrench to remove
the four small screws in the top of
the Bearing Caps (3).
4. Use the 7/16" wrench to screw in
the Hex Tap screws into the four
small threaded holes in the top of
the Bearing Caps (3). As the
screws tighten, the bearing (4) is
Continued on next page.
Initial Steps
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. Press the E-Stop (E) button on the
right control handle.
5. Disconnect the Air power supply.
6. Assume that there is still a load on
every actuator. Proceed with
caution.