TM-9-2320-272-23-2
TRUCK, 5-TON, 6X6, M939, M939A1, AND M939A2 SERIES TRUCKS (DIESEL)
TECHNICAL MANUAL; FIELD MAINTENANCE MANUAL; VOLUME 2 OF 5
SEPTEMBER 2012
TM-9-2320-272-23-2 - Page 809 of 1417
REMOVAL
WARNING
Diesel fuel is highly flammable. Do not perform fuel system procedures near open flame.
Failure to comply may result in injury or death to personnel.
1.
Remove screw (Figure 1, Item 1), lockwasher (Figure 1, Item 2), and lever (Figure 1, Item 3) from left rear cab
floor (Figure 1, Item 5). Discard lockwasher.
2.
Remove two screws (Figure 1, Item 12), lockwashers (Figure 1, Item 11), and selector valve
(Figure
1,
Item
9) from mounting bracket (Figure 1, Item 10). Discard lockwashers.
3.
Remove two locknuts (Figure 1, Item 13), screws (Figure 1, Item 15), washers (Figure 1, Item 14), indicator
plate (Figure 1, Item 4), and mounting bracket (Figure 1, Item 10) from cab floor (Figure 1, Item 5). Discard
locknuts.
NOTE
•
Use soft-nosed vise to hold selector valve.
•
Tag fittings for installation.
4.
Remove two elbows (Figure 1, Item 7), pipe nipples (Figure 1, Item 6), and elbows (Figure 1, Item 8) from fuel
selector valve (Figure 1, Item 9).
END OF TASK
INSPECTION
1.
Install lever (Figure 1, Item 3) on selector valve (Figure 1, Item 9) with screw (Figure 1, Item 1).
2.
Turn lever (Figure 1, Item 3) left, then right, while checking inside of selector valve (Figure 1, Item 9) for burrs
and nicks. Replace selector valve if nicked or burred.
3.
Remove screw (Figure 1, Item 1) and lever (Figure 1, Item 3) from selector valve (Figure 1, Item 9).
4.
Inspect two pipe nipples (Figure 1, Item 6) and elbows (Figure 1, Items 7 and 8) for stripped threads. Replace
any part if threads are stripped.
TM 9-2320-272-23-2
0255
0255-2
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