Assembly - TM-9-2520-249-34-P0158

TM 9-2520-249-34&P

b. Assemble and install the right and left

NOTE

brake apply body assemblies as outlined in c through v,

The right and left brake apply valve body

below.

assemblies are identical except that they

c. If pins (80) were removed from brake apply

are designed for opposite sides, therefore,

body (82), install new ones. Press pins (81) into body

e through o, below, will apply to either one.

(82), 0.060 inch below the surface of the body and stake

The instructions are keyed to the left brake

securely.

apply body (FO-13, items 72 through 98).

d. If bearing (83) was removed from brake

e. Remove preformed packing (72) from

apply body (82), install a new bearing. Install the

brake apply shaft (74).

bearing, pressing against the numbered side, 0.060 to

Remove springs (73 and 75) from cover

0.070 inch above the oil port relief surface of the body.

assembly (36).

e. If bearing (80) was removed from brake

g. Remove air valve assembly (76) from

apply body (82), install a new bearing. Install the

brake apply body (82). Do not remove seal (77) from air

bearing, pressing against the numbered side of the

valve (78). except for replacement.

bearing, flush with, to 0.010 inch below, the surface of

h. Remove retaining ring (91) and washer (92)

the body .

from brake apply shaft (74).

Install signal valve (95), small end first, into

Remove brake apply shaft (74, FO-13)

brake apply body (82).

from brake apply body (82). Refer to figure 7-62.

g. Install signal valve spring (96) and washer

Remove lever (86. FO-13), cam (88),

(97) into brake apply body (82) and secure washer (97)

rollers (90), bearing race (87), and plate (89) from brake

with retaining ring (98).

apply body (82).

h. Apply a coating of oil-soluble grease to

k. Remove retaining ring (98) from brake

needle bearing race (87), cam (88,) and rollers (90).

apply body (82).

Place the brake apply cam side plate (89)

Remove flat washer (97, FO-13), spring

on the assembly table and position brake cam (88) on

(96) and valve (95) from brake apply body (82).

the plate. Refer to figure 7-61.

m. Do not remove bearing (80 or 83) from

brake apply body (82) except for replacement.

n. Do not remove pins (81) from the brake

apply body (82) except for replacement.

o. Do not remove hexagon-head plugs 138)

from cover (37) except for replacement.

7-190. Cleaning

Refer to paragraph 5-2 for cleaning recommendations.

7-191. Inspection and Repair

Refer to paragraph 5-3 for inspection and repair

recommendations.

7-192. Repair Standards

Figure 7-61. Components of left brake assembly,

a. Refer to paragraph 5-4 for explanation of

showing relation of parts.

repair standards.

Place bearing race (87, FO-13) over cam

b. Refer to repair standards (table 7-27).

(88) and install 58 rollers (90) between the cam and

race. Refer to figure 7-61.

7-193. Assembly (FO-13)

k. Place the brake air valve lever onto the

a. If hexagon-head plugs (38) were removed

components (fig. 7-61), as shown.

from housing cover (37), install plugs.

Install the brake components into the brake

apply body (82, FO-13). Refer to figure 7-62

7-60