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

  TM-9-2320-272-23-3 - Page 1097 of 1469

REMOVAL
WARNING
Air system components are subject to high pressure. Always relieve pressure before
loosening or removing air system components. Failure to comply may result in injury or death
to personnel.
1.
Remove cap (Figure 1, Item 11) and valve stem (Figure 1, Item 12) from tank valve (Figure 1, Item 13) and
allow tire (Figure 1, Item 17) to deflate completely.
2.
Remove two nuts (Figure 1, Item 6), washers (Figure 1, Item 7), screws (Figure 1, Item 10), washers
(Figure
1, Item 9), and support bracket (Figure 1, Item 8) from bracket (Figure 1, Item 3) and axle flange
(Figure
1, Item 14).
3.
Remove hose (Figure 1, Item 5) from connector (Figure 1, Item 4) and tube (Figure 1, Item 15).
4.
Remove wheel valve (Figure 1, Item 21) from connector (Figure 1, Item 20).
5.
Remove connector (Figure 1, Item 20), o-ring (Figure 1, Item 19), and washer (Figure 1, Item 18) from hub
(Figure 1, Item 16). Discard o-ring.
6.
Remove connector (Figure 1, Item 4) from wheel valve (Figure 1, Item 21).
7.
Remove two locknuts (Figure 1, Item 1), washers (Figure 1, Item 2), and bracket (Figure 1, Item 3) from wheel
valve (Figure 1, Item 21). Discard locknuts.
8.
For General Cleaning Instructions, refer to (Volume 5, WP
0819).
9.
For General Inspection Instructions, refer to (Volume 5, WP
0819).
10.
Inspect wheel valve (Figure 1, Item 21) for cracks, leaks, and stripped threads. Replace wheel valve if cracked
or leaking. Repair stripped threads.
11.
Inspect bracket (Figure 1, Item 3), support bracket (Figure 1, Item 8), connectors (Figure 1, Items 4 and 20),
hose (Figure 1, Item 5), tube (Figure 1, Item 15), and hub (Figure 1, Item 16) for cracks, bends, and stripped
threads. Replace part(s) if damaged.
TM 9-2320-272-23-3
0491
0491-2


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