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 613 of 1417
DISASSEMBLY
1.
Remove four screws (Figure 3, Item 1), strainer screen (Figure 3, Item 2), drain plug (Figure 3, Item 4), and
spacer (Figure 3, Item 3) from oil pan (Figure 3, Item 14). Discard spacer.
2.
Remove three screws (Figure 3, Item 9), lockwashers (Figure 3, Item 8), washers (Figure 3, Item 7), aerator
(Figure 3, Item 6), and gasket (Figure 3, Item 5) from oil pan (Figure 3, Item 14). Discard lockwashers and
aerator gasket and clean gasket remains from oil pan mating surfaces.
3.
Remove two screws (Figure 3, Item 10), washers (Figure 3, Item 11), suction flange (Figure 3, Item 12), and
gasket (Figure 3, Item 13) from oil pan (Figure 3, Item 14). Discard gasket and clean gasket remains from oil
pan mating surfaces.
4.
Clean oil pan (Figure 3, Item 14), aerator (Figure 3, Item 6), drain plug (Figure 3, Item 4), suction flange
(Figure
3, Item 12), and screen (Figure 3, Item 2) (Volume 5, WP
0819).
5.
Inspect oil pan (Figure 3, Item 14), aerator (Figure 3, Item 6), drain plug (Figure 3, Item 4), suction flange
(Figure
3, Item 12), and screen (Figure 3, Item 2) (Volume 5, WP
0819).
6.
Check oil pan (Figure 3, Item 14) for cracks, screen (Figure 3, Item 2) for damage or tears, and oil pan, aerator
(Figure 3, Item 6), drain plug (Figure 3, Item 4), suction flange (Figure 3, Item 12), and screen for damaged
threads and uneven gasket mating surfaces. Replace oil pan if damaged or cracked. Replace screen if
damaged or torn. Repair or replace oil pan if threads are damaged.
TM 9-2320-272-23-2
0231
0231-4
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