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 870 of 1469
INSTALLATION
NOTE
•
If double check valve is being installed, use fittings from old double check valve.
•
Apply sealant to all male pipe threads before installation.
1.
Install elbow (Figure 2, Item 5) on double check valve (Figure 2, Item 9).
2.
Install stoplight switch (Figure 2, Item 3) on elbow (Figure 2, Item 5).
3.
Install elbow (Figure 2, Item 6) on end of double check valve (Figure 2, Item 9).
4.
Install tee (Figure 2, Item 13) on double check valve (Figure 2, Item 9).
5.
Install elbow (Figure 2, Item 12) on tee (Figure 2, Item 13).
6.
Install double check valve (Figure 2, Item 9) on frame rail (Figure 2, Item 1) with screw (Figure 2, Item 16),
washer (Figure 2, Item 17), and locknut (Figure 2, Item 2).
7.
Install air line (Figure 2, Item 14) on tee (Figure 2, Item 13) and tighten nut (Figure 2, Item 15).
8.
Install air line (Figure 2, Item 10) on elbow (Figure 2, Item 12) and tighten nut (Figure 2, Item 11).
9.
Install cross fitting air line (Figure 1, Item 8) on elbow (Figure 2, Item 6) and tighten nut (Figure 2, Item 7).
10.
Connect two wires (Figure 2, Item 4) to stoplight switch (Figure 2, Item 3).
M9388DAA
1
17
16
13
15
2
3
4
14
12
11
10
9
8
7
6
5
Figure 2.
Double Check Valve No. 5 Installation.
END OF TASK
FOLLOW-ON MAINTENANCE
1.
Start engine and allow air pressure to build to normal operating range. (TM 9-2320-272-10)
2.
Check for air leaks at double check valve No. 5. (TM 9-2320-272-10)
3.
Road test vehicle. (TM 9-2320-272-10)
END OF TASK
END OF WORK PACKAGE
TM 9-2320-272-23-3
0453
0453-3/4 blank
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