TM-9-2320-272-24-2

TRUCK, 5-TON, 6X6, M939, M939A1, AND M939A2 SERIES TRUCKS (DIESEL)

TECHNICAL MANUAL; UNIT, DIRECT SUPPORT, AND GENERAL SUPPORT MAINTENANCE MANUAL; VOLUME 2 OF 4

JUNE 1998

TM-9-2320-272-24-2 - Page 236 of 991

TM 9-2320-272-24-2

3-330. REAR WINCH ADJUSTMENT

THIS TASK COVERS:

a. Cable Tensioner Check

b. Cable Tensioner Adjustment

INITIAL SETUP:

APPLICABLE MODELS

REFERENCES (TM)

M936/A1/A2

TM 9-2320-272-10

TOOLS

TM 9-2320-272-24P

General mechanic ’s tool kit (Appendix E, Item 1)

EQUIPMENT

CONDITION

Test rod. 5/8 in. diameter

Rear winch cable removed (para. 3-331).

a. Cable Tensioner Check

1.

Start engine (TM 9-2320-272-10) and allow air system to build to normal operating pressure.

2.

Place cable tensioner control valve lever (1) in ON position.

3.

Place test rod (3) between sheaves (2). If test rod (3) cannot be inserted or fits loosely, adjust cable

tension (task b).

4.

Stop engine (TM 9-2320-272-10) and remove test rod (3) if adjustment is not required.

b. Cable Tensioner Adjustment

1.

Remove cotter pin (6), pin (8), and pushrod yoke (7) from pivot arm (5).

2.

Place test rod (3) between sheaves (2) on cable tensioner (4).

3.

Loosen jamnut (9) on pushrod (10).

4.

Position pivot arm (5) so sheaves (2) are against test rod (3).

5.

Turn pushrod yoke (7) until holes in pushrod (10) and pivot arm (5) align.

6.

Install pushrod yoke (7) on pivot arm (5) with pin (8) and pin (6). Tighten jamnut (9).

7.

Place tensioner control valve lever (1) in OFF position and remove test rod (3) from sheaves (2).

8.

Stop engine (TM 9-2320-272-10).

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