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 464 of 991

TM9-2320-272-24-2

3-418. MACHINE GUN MOUNTING KIT MAINTENANCE (Contd)

d. Installation

1.

2.

3.

4.

5.

6.

NOTE

Step 1 may require the removal of some insulation material from

inside of cab.

Install two U-bolts (9) in each rear gun mount bracket (7) with four washers (5) and new

locknuts (8). Finger-tighten locknuts (8).

Install right rear bracket and post (1) through two U-bolts (9) and rear gun mount bracket (7).

Ensure welded post nib (2) rests on top of U-bolt (9) and bracket and post (1) turns freely.

Install left rear bracket and post (10) through two U-bolts (9) and rear gun mount bracket (7).

Ensure welded post nib (2) rests on top of U-bolt (9) and bracket and post (10) turns freely.

Loosen four screws (11) on front gun mount bracket (6) and install right front bracket and post (3)

in front gun mount bracket (6). Ensure pin (4) rests on top of front gun mount bracket (6).

Position ring mount (12) to adapters (15), (18), and (16) and align locating hole (19) in rear

adapter (18) and locating hole (20) in ring mount (12).

Install ring mount (12) on adapters (15), (18), and (16) with twelve washers (14), screws (13),

washers (14), and new locknuts (17). Tighten screws (11).

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