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 849 of 1469
REAR AIR COUPLINGS REMOVAL (M923/A1/A2)
1.
Remove dummy coupling (Figure 2, Item 9) and S-hook (Figure 2, Item 8) from air coupling (Figure 2, Item 10)
and bracket (Figure 2, Item 11).
2.
Remove air coupling (Figure 2, Item 10) and pipe nipple (Figure 2, Item 7) from valve (Figure 2, Item 12).
3.
Disconnect air line (Figure 2, Item 1) from elbow (Figure 2, Item 2).
4.
Remove elbow (Figure 2, Item 2) from pipe coupling (Figure 2, Item 3).
5.
Remove pipe coupling (Figure 2, Item 3) from adapter (Figure 2, Item 4).
6.
Remove four locknuts (Figure 2, Item 15), washers (Figure 2, Item 14), screws (Figure 2, Item 6), bracket
(Figure 2, Item 11), and plate (Figure 2, Item 13) from frame rail (Figure 2, Item 5). Discard locknuts.
NOTE
Perform Step (7) for emergency coupling on right side of vehicle.
7.
Loosen nut (Figure 2, Item 18) from adapter (Figure 2, Item 4).
8.
Remove valve (Figure 2, Item 12) from elbow (Figure 2, Item 16).
NOTE
Perform Step (9) for service coupling on left side of vehicle.
9.
Remove elbow (Figure 2, Item 16) and pipe coupling (Figure 2, Item 17) from adapter (Figure 2, Item 4).
10.
Remove elbow (Figure 2, Item 16) from adapter (Figure 2, Item 4).
11.
Remove nut (Figure 2, Item 18), lockwasher (Figure 2, Item 19), identification plate (Figure 2, Item 20), and
adapter (Figure 2, Item 4) from frame rail (Figure 2, Item 5). Discard lockwasher.
TM 9-2320-272-23-3
0450
0450-4
Back to Top
