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 999 of 1469
REMOVAL
WARNING
Do not disconnect air lines or hoses before draining air reservoirs. Small parts under pressure
may shoot out with high velocity. Failure to comply may result in injury or death to personnel.
NOTE
Tag air lines for installation.
1.
Remove locknut (Figure 1, Item 5), screw (Figure 1, Item 3), and clamp (Figure 1, Item 4) from front step brace
(Figure 1, Item 1). Discard locknut.
2.
Remove and discard tiedown strap (Figure 1, Item 2).
5
4
3
1
2
5
M6265DAA
Figure 1.
Double Check Valve Removal.
3.
Remove eight screws (Figure 2, Item 19), lockwashers (Figure 2, Item 18), and access box cover
(Figure
2,
Item
16) from step box access (Figure 2, Item 11). Discard lockwashers.
4.
Disconnect air lines (Figure 2, Items 8, 9, and 10) from double check valve No. 4 (Figure 2, Item 12).
5.
Disconnect air lines (Figure 2, Items 3, 7, and 8) from double check valve No. 3 (Figure 2, Item 15).
TM 9-2320-272-23-3
0477
0477-2
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