TM-9-2320-273-34

TRUCK TRACTOR, LINE HAUL; LIGHT EQUIPMENT TRANSPORTER; TRUCK CHASSIS; MEDIUM EQUIPMENT TRANSPORTER

TECHNICAL MANUAL; DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE

DECEMBER 1980

TM-9-2320-273-34 - Page 230 of 801

TM 9-2320-273-34

d. Removal and Disassembly.

NOTE

The number of shims, shown in figures

7-48 and 7-49 (6), (9), (13), and (17) will

vary from transmission-to-transmission.

The quantity shown in the figures are

for illustration purposes only,

(1)

Maintain hand pressure down on the pressure regulator and remove the four mounting

capscrews (1, fig. 7-49) and washers (2).

When removing the pressure regulator in

step (2), shims (6) and (9), guide (7),

spring (8), and piston (10) will remain in

the control group cavity as shown in

illustration. Take care that these parts

do not fall out and become lost.

(2)

Lift off assembled pressure regulator (4),

NOTE

At this point changes can be made to

shims (6) and (9).

(3)

If further disassembly is required remove two screws ( 19) from pressure regulator (4) and

separate the assembly to gain access to shims ( 13) and (17).

e. Assembly and Installation.

NOTE

Be sure the “V” grooves in plates (12,

fig. 7-49), (14), (15), and (18) are

alined during assembly.

(1)

Assemble pressure regulator (4) if disassembled, with thickness of shims as determined in

paragraphs 7-8a and 7-8b, with new O-ring seals. Assemble to center plate ( 15) the following parts: plate

(14), shims (13). upper plate (12), piston (16), shims (17), and lower plate (18). Secure with two screws (19).

(2)

Install O-ring seals on pistons (5) and (11) and install pistons in pressure regulator (4).

(3) Install

O-ring seal on piston (10).

(4) Install shims (9),

piston (10), spring (8), guide (7), and shims (6) in transmission control

cavity.

7-52

CAUTION