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 897 of 1393

DISASSEMBLY - Continued

16.

Remove six screw assembled lockwashers (Figure 4, Item 14), cover (Figure 4, Item 15), and gasket

(Figure

4,

Item

16) from brake housing (Figure 4, Item 13). Discard screw assembled lockwashers and gasket.

17.

Remove screw (Figure 4, Item 19), washer (Figure 4, Item 20), seal (Figure 4, Item 21), spring

(Figure

4,

Item

18), and brake band (Figure 4, Item 17) from brake drum (Figure 4, Item 4) and brake housing

(Figure

4,

Item

13). Discard seal.

18.

Remove screw (Figure 4, Item 1), lockwasher (Figure 4, Item 2), and washer (Figure 4, Item 3) from brake

drum (Figure 4, Item 4) and worm shaft (Figure 4, Item 8).

19.

Using puller, remove brake drum (Figure 4, Item 4) from worm shaft (Figure 4, Item 8) and brake housing

(Figure

4,

Item

13).

20.

Remove woodruff key (Figure 4, Item 11) from worm shaft (Figure 4, Item 8). Discard woodruff key.

NOTE

Mark brake housing and gearcase for assembly.

21.

Remove four screws (Figure 4, Item 5) and lockwashers (Figure 4, Item 6), brake housing

(Figure

4,

Item

13), and gasket (Figure 4, Item 7) from gearcase (Figure 4, Item 9). Discard lockwashers

and

gasket.

22.

Remove seal (Figure 4, Item 12) from brake housing (Figure 4, Item 13). Discard seal.

TM 9-2320-272-23-4

0696

0696-8