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 893 of 1393

DISASSEMBLY

1.

Remove four screws (Figure 2, Item 1) and lockwashers (Figure 2, Item 2), adapter (Figure 2, Item 23), and

gasket (Figure 2, Item 3) from cover (Figure 2, Item 22). Discard lockwashers and gasket.

2.

Remove woodruff key (Figure 2, Item 5) from input shaft (Figure 2, Item 6). Discard woodruff key.

3.

Remove ten screws (Figure 2, Item 20), lockwashers (Figure 2, Item 21), cover (Figure 2, Item 22), and gasket

(Figure 2, Item 7) from housing (Figure 2, Item 12). Discard lockwashers and gasket.

4.

Remove bearing (Figure 2, Item 8) from cover (Figure 2, Item 22).

5.

Remove input shaft gear (Figure 2, Item 4) and input shaft (Figure 2, Item 6) from housing

(Figure

2,

Item

12).

6.

Remove input shaft gear (Figure 2, Item 4) from input shaft (Figure 2, Item 6).

7.

Remove snapring (Figure 2, Item 15) from worm shaft (Figure 2, Item 19).

8.

Using puller, remove drive gear (Figure 2, Item 16) from worm shaft (Figure 2, Item 19).

9.

Remove woodruff key (Figure 2, Item 9) from worm shaft (Figure 2, Item 19). Discard woodruff key.

10.

Remove four screws (Figure 2, Item 14), lockwashers (Figure 2, Item 13), housing (Figure 2, Item 12), and

gasket (Figure 2, Item 11) from gearcase (Figure 2, Item 10). Discard lockwashers and gasket.

11.

Remove bearing (Figure 2, Item 17) and seal (Figure 2, Item 18) from housing (Figure 2, Item 12).

Discard

seal.

TM 9-2320-272-23-4

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