Section XVIII. RIGHT AND LEFT BRAKE AND STEER CLUTCH-REPAIR

TM 9-2520-249-34& P

Section XVIII. RIGHT AND LEFT BRAKE AND STEER CLUTCH-REPAIR

unless replacement of retaining rings or pins is

7-104. Description.

necessary.

Refer to paragraphs 2-13 and 2-15 for description of the

g. If inspection shows that anchor pins (6)

right and left brakes and steer clutches.

require replacement, press them out of reaction plate

(7).

7-105. Disassembly (FO-7)

h. If pins (8) require replacement, remove

them from plate (7).

NOTE

The right and left assemblies are identical;

7-106. Cleaning

therefore, only the left assembly is described in

the following procedures.

Refer to paragraph 5-2 for cleaning recommendations.

a. Position the assembly in a press with the steer

7-107. Inspection and Repair

clutch (side with fewer plates) down (fig. 7-34).

Refer to paragraph 5-3 for general inspection and repair

recommendations.

7-108. Repair Standards

a. Refer to paragraph 5-4 for explanation of

repair standards.

b. Refer to repair and overhaul standards

(table 7-15).

7-109. Assembly (FO-7)

a. If pins (8) were removed from plate (7),

install new replacement parts. The pins must be

pressed in, flat sides of the ends out, and flat sides

parallel to the centerline of the plate, to a radius of

5.350 inches (center of plate to inner end of pin).

b. If pins (6) were removed from plate (7),

install new pins. Pins (6) must be pressed into plate (7)

so that the pins project 2.000 inches from the plate

surface on the side that has the largest inner diameter.

c. Install 12 spring guide pins (15), assembled

Figure 7-34. Removing o r installing) snaprings which

to 12 retaining rings (17), into the small holes in apply

retain brake and steer clutch release guide pins.

disk (16). The retaining rings must seat against the flat

side of the disks (opposite the counterbores at the pin

b. Depress the brake apply plate (fig. 7-34)

holes).

until pressure is relieved from the snaprings. Remove

d. Position disk (16), flat side down, on a flat

the 12 snaprings.

surface. The ends of the pins (15), which do not have

c. Remove the brake apply plate and 12

retaining rings, will project upward.

springs, Remove six internal-splined brake plates and

e. Install four internal-splined disks 114) and

six external-tanged brake plates (fig. 7-34).

four external-tanged disks (12) onto apply disk (16).

d. Lift the brake and steer clutch reaction

Begin with an internal-splined disk (14) and alternate

plate assembly off the oil baffle plate and steer clutch

with external-tanged disks (12) in the clutch. The

plates (fig. 7-34).

external tang of disks (12) must be positioned between

e. Remove the oil baffle plate. Remove four

the closest adjoining pins. The smaller cutouts (in the

external-tanged steer clutch plates and four internal-

tangs) must aline with identical cutouts in apply disk

splined steer clutch plates (fig. 7-34).

(16).

Remove 12 spring guide pins (15, FO-7)

Install oil baffle plate (11) on external-

from steer clutch apply disk (16). Do not remove the

tanged clutch disks (12), centering it with the clutch

remaining 12 retaining rings (17) from pins (15)

disks.

g. Position reaction plate assembly (5),

largest

7-31