TM-9-2320-272-23-5

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

TECHNICAL MANUAL; FIELD MAINTENANCE MANUAL; VOLUME 5 OF 5

SEPTEMBER 2012
TM-9-2320-272-23-5

  TM-9-2320-272-23-5 - Page 87 of 623

ASSEMBLY - Continued
4.
Install handle (Figure 15, Item 7) on armament support assembly (Figure 15, Item 10) with four screws
(Figure
15,
Item 6) and locknuts (Figure 15, Item 8).
NOTE
Finger-tighten locknuts in Steps (5) through (10).
5.
Align three-hole pattern in armament support assembly (Figure 15, Item 10) with three-hole pattern of bearing
assembly (Figure 15, Item 11) and install screw (Figure 15, Item 14), washer (Figure 15, Item 20), and locknut
(Figure 15, Item 21) in center hole (Figure 15, Item 15).
6.
Install two backrests (Figure 15, Item 17) on bearing assembly (Figure 15, Item 11) and armament support
assembly (Figure 15, Item 10) with four screws (Figure 15, Item 16), washers (Figure 15, Item 19), and locknuts
(Figure 15, Item 18).
7.
Install tube (Figure 15, Item 31) on bearing assembly (Figure 15, Item 11) and armament support assembly
(Figure 15, Item 10) with six screws (Figure 15, Item 5), washers (Figure 15, Item 23), and locknuts
(Figure
15,
Item
22).
8.
Install pin assembly (Figure 15, Item 38) on armament mount panel (Figure 15, Item 2) with screw
(Figure
15,
Item
1), washer (Figure 15, Item 37) and locknut (Figure 15, Item 36).
9.
Install armament mount panel (Figure 15, Item 2) on armament support assembly (Figure 15, Item 10) with
four screws (Figure 15, Item 4), washers (Figure 15, Item 33), locknuts (Figure 15, Item 32), two screws
(Figure
15,
Item 3), washers (Figure 15, Item 35), and locknuts (Figure 15, Item 34).
10.
Install seven screws (Figure 15, Item 9), washers (Figure 15, Item 12), and locknuts (Figure 15, Item 13) on
armament support assembly (Figure 15, Item 10) and bearing assembly (Figure 15, Item 11).
11.
Tighten locknuts (Figure 15, Items 13, 18, 21, 22, 32, 34, and 36).
NOTE
Use spacers as needed to center lockpin in lockring.
12.
Position lock assembly (Figure 15, Item 28) between bearing assembly (Figure 15, Item 11) and lockring
(Figure 15, Item 24), centering lockpin (Figure 15, Item 25) in lockring (Figure 15, Item 24) using spacers
(Figure 15, Item 29) as needed.
13.
Install lock assembly (Figure 15, Item 28) on bearing assembly (Figure 15, Item 11) with two screws
(Figure
15,
Item
30), washers (Figure 15, Item 27), and locknuts (Figure 15, Item 26).
TM 9-2320-272-23-5
0775
0775-24


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