TM-9-2320-361-34

2-1/2-TON, 6x6, M44A2 SERIES TRUCKS (MULTIFUEL)

TECHNICAL MANUAL; DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE

MAY 1992

TM-9-2320-361-34 - Page 438 of 764

TM 9-2320-361-34

15-36. INTEGRAL DERRICK MAINTENANCE

(Contd)

b. Inspection

Inspect derrick tube (5) for bends, breaks, cracks, or flat spots. Straighten minor bends. Replace if

derrick tube (5) is badly bent, broken, or cracked.

c. Installation

1.

2.

3.

4.

5.

Apply a coat of GAA grease inside base (2).

NOTE

Assistant will help with steps 2 and 3.

Slide derrick tube (5) over auger rack bar (8) and into base (2).

Aline sighting hole (6) to face three screws (3). Tighten screws (3) and new locknuts (4) on base (2).

Retract auger rack bar (8) into derrick tube (5) (TM 9-2320-361-10).

Return derrick (7) to resting position (TM 9-2320-361-10).

FOLLOW-ON TASKS:

. Install derrick sheave (para. 15-37).

●

Install earth boring machine seat and backrest (TM 9-2320-361-20).

15-127