TM-9-2320-272-23-3
TRUCK, 5-TON, 6X6, M939, M939A1, AND M939A2 SERIES TRUCKS (DIESEL)
TECHNICAL MANUAL; FIELD MAINTENANCE MANUAL; VOLUME 3 OF 5
SEPTEMBER 2012
TM-9-2320-272-23-3 - Page 1022 of 1469
INSTALLATION - Continued
NOTE
Assistant will help with Step (8).
8.
Install hub (Figure 6, Item 11), drum (Figure 6, Item 12), outer bearing (Figure 6, Item 9), and outer bearing oil
seal (Figure 6, Item 8) on axle housing (Figure 6, Item 10) with bearing adjusting nut (Figure 6, Item 7).
9.
Tighten bearing adjusting nut (Figure 6, Item 7) while turning hub (Figure 6, Item 11). Tighten bearing
adjustment nut 50 lb-ft (68 N·m).
10.
Loosen bearing adjusting nut (Figure 6, Item 7) 1/6 to 1/4 turn. Install washer (Figure 6, Item 6) on axle housing
(Figure 6, Item 11) and adjusting nut.
11.
Install outer bearing locknut (Figure 6, Item 5) on axle housing (Figure 6, Item 10). Tighten outer bearing locknut
250 to 400 lb-ft (339 to 542 N·m).
12.
Apply silicone rubber adhesive to mating surfaces of axle shaft (Figure 6, Item 2) flange.
13.
Install axle shaft (Figure 6, Item 2) on hub (Figure 6, Item 11) with ten washers (Figure 6, Item 3) and screws
(Figure 6, Item 4). Tighten screws 60 to 100 lb-ft (81 to 136 N·m).
4
3
2
1
12
11
10
9
8
7
6
5
M5020DAA
Figure 6.
Rear Hub and Drum Installation.
END OF TASK
TM 9-2320-272-23-3
0480
0480-7
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