TM-9-2320-272-23-3

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

TECHNICAL MANUAL; FIELD MAINTENANCE MANUAL; VOLUME 3 OF 5

SEPTEMBER 2012

TM-9-2320-272-23-3 - Page 689 of 1469

DISASSEMBLY

NOTE

•

Twelve-degree wedge assembly should also be replaced when repairing front brake

actuator. It is not offered in any of these Rockwell kits (TM 9-2320-272-23P).

•

Do not perform this procedure unless repair kit is available.

•

Rockwell does not make a repair kit for the front spider wedge brake. The entire spider

must be replaced. Individual parts are available under a separate NSN.

1.

Remove wedge assembly (Figure 2, Item 14) from back of adjusting plunger housing (Figure 2, Item 10).

Discard wedge assembly.

2.

Remove two hollow screws (Figure 2, Item 9), gaskets (Figure 2, Item 8), springs (Figure 2, Item 7), and

adjusting pawls (Figure 2, Item 6) from adjusting plunger housing (Figure

2,

Item

10). Discard adjusting bolts,

plunger seals, adjusting sleeves, and adjusting plungers.

3.

Remove two adjusting bolts (Figure 2, Item 2), plunger seals (Figure 2, Item 3), adjusting sleeves

(Figure

2,

Item

4), and adjusting plungers (Figure 2, Item 5) from adjusting plunger housing

(Figure

2,

Item

10). Discard adjusting bolts, plunger seals, adjusting sleeves, and adjusting plungers.

4.

Remove two guide screws (Figure 2, Item 11) and gaskets (Figure 2, Item 12) from anchor plunger housing

(Figure 2, Item 13). Discard guide screws and gaskets.

5.

Remove two anchor plungers (Figure 2, Item 15) and seals (Figure 2, Item 1) from anchor plunger housing

(Figure 2, Item 13). Discard anchor plungers and seals.

TM 9-2320-272-23-3

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