TM-9-2320-272-23-4

TRUCK, 5-TON, 6X6, M939, M939A1, AND M939A2 SERIES TRUCKS (DIESEL)

TECHNICAL MANUAL; FIELD MAINTENANCE MANUAL; VOLUME 4 OF 5

SEPTEMBER 2012

TM-9-2320-272-23-4 - Page 1105 of 1393

REMOVAL

1.

Remove cotter pin (Figure 1, Item 1), washer (Figure 1, Item 2), clevis pin (Figure 1, Item 4), and clevis

(Figure

1,

Item

3) from transfer case Power Takeoff (PTO) select lever (Figure 1, Item 5). Discard cotter pin.

NOTE

•

Have drainage container ready to catch oil.

•

Use drain pans to retain leaking/draining fluids. Refer to local procedures and plans for

preventing and responding to fluid spills or leaks. Comply with local regulations when

disposing of clean up material and leaked and spilled fluids.

2.

Disconnect transfer case oil return line (Figure 1, Item 9) from adapter (Figure 1, Item 10) and plug opening

of transfer case oil return line.

3.

Remove adapter (Figure 1, Item 10) from PTO unit (Figure 1, Item 11).

4.

Remove six screws (Figure 1, Item 6) and washers (Figure 1, Item 7) from transfer case (Figure 1, Item 8).

5.

Remove PTO unit (Figure 1, Item 11) from transfer case (Figure 1, Item 8).

6.

Remove setscrew (Figure 1, Item 12) from PTO oil pump drive gear assembly (Figure 1, Item 15).

7.

Slide PTO oil pump drive gear assembly (Figure 1, Item 15) off transfer case main input shaft

(Figure

1,

Item

13).

8.

Remove oil seal (Figure 1, Item 14) from PTO oil pump drive gear assembly (Figure 1, Item 15).

Discard

oil

seal.

TM 9-2320-272-23-4

0725

0725-2