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Page Title:
INTEGRAL DERRICK AND DERRICK SHEAVE ASSEMBLY REMOVAL, REPAIR, AND REPLACEMENT - continued |
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 TM 9-2320-209-34-2-2
FRAME 2
CAUTION
Do not feed rack bar (1) more than six feet from bottom
of boring case (3) while in horizontal position. Weight
of rack bar may cause damage to pinions in boring
gearcase (3).
1. Feed rack bar (1) halfway out of derrick assembly (2) as shown. Rack bar
should stick out five feet. Refer to Raising, Leveling, and Lowering the Derrick
Tube, TM 9-2320-209-10.
2. Turn off engine.
GO TO FRAME 3
17-710
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