TM-9-2320-272-24-4

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

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

JUNE 1998

TM-9-2320-272-24-4 - Page 532 of 836

TM 9-2320-272-24-4

5-77. HINGED ROOF MAINTENANCE (Contd)

NOTE

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Insulate areas of dissimilar metal-to-metal contact with zinc

chromate primer.

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Apply sealing compound to exterior joints prior to installation.

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Apply adhesive to both rubber and metal surfaces.

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Perform step 1 only if skin was removed.

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Assistant will help with step 1.

1.

Install skin (7) on hinged roof frame (11) with one-hundred fifty-seven new rivets (8).

2.

Install four new grommets (10) on hinged roof frame (11) with four screws (9).

3.

Install clevises (18) on bars (15) and (25) and position in slots of hinged roof frame (11).

4.

Install latch (17) on hinged roof frame (11) with four washers (20) and nuts (21).

5.

Install two clevises (18) on latch (17) with two pins (16) and new cotter pins (19).

6.

Install new O-ring (36), new gasket (6), plate (5), and handle (3) on skin (7) with two screws (4).

7.

Install handle (3) on latch (17) with washer (22), nut (23), and new cotter pin (24).

8.

Install angle bracket (37) on skin (7) with three screws (38).

9.

Install chain hook (1) and padlock and chain (2) on angle bracket (37).

10.

Install new seals (31) and (33) on hinged roof frame (11).

11.

Install new seal (35) and retainer (34) on hinged roof frame (11) with fifty-two new rivets (32).

12.

Install new cushion pads (12) and (27) on hinged roof frame (11).

13.

Install new seal (28) and retainer (30) on hinged roof frame (11) with twenty-four new rivets (29).

14.

Install new seal (13) and hinge (14) on hinged roof frame (11) with sixty-eight screws (26).

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