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 575 of 1417
REMOVAL
NOTE
Have adequate drainage container ready to catch oil.
1.
Remove two screws (Figure 1, Item 7), washers (Figure 1, Item 6), and clamps (Figure 1, Item 5) from oil pump
pickup and return hose (Figure 1, Items 1 and 2) and engine oil pan (Figure 1, Item 4).
2.
Disconnect oil pump return hose (Figure 1, Item 2) from adapter (Figure 1, Item 8) and oil pan aerator
(Figure
1,
Item
3).
3.
Remove adapter (Figure 1, Item 8), elbow (Figure 1, Item 9), and nipple (Figure 1, Item 10) from oil pump
(Figure 1, Item 11).
M0024DAA
11
1
2
3
4
5
7
6
5
7
6
8
9
10
Figure 1.
Oil Pump Return Hose Removal.
END OF TASK
INSPECTION
1.
Inspect oil return hose. Replace hose if cracked, frayed, or split.
2.
Inspect adapter, elbow, and nipple. Replace if adapter, elbow, or nipple have cracks or threads are stripped
or crossed.
END OF TASK
TM 9-2320-272-23-2
0225
0225-2
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