TM-9-2330-238-14

CHASSIS, SEMITRAILER: 6-TON, 4-WHEEL M295A1; SEMITRAILER, VAN: EXPANSIBLE, 6-TON, 4-WHEEL M313; SEMITRAILER, VAN: SHOP, FOLDING SIDES, 6-TON, 4-WHEEL M447 AND M447C; SEMITRAILER, VAN: REPAIR PARTS, SHOP EQUIPMENT, 6-TON, 4-WHEEL M749; SEMITRAILER, VAN: REPAIR PARTS STORAGE, 6-TON, 4-WHEEL M750

TECHNICAL MANUAL; OPERATOR’S, ORGANIZATIONAL, DIRECT SUPPORT, AND GENERAL SUPPORT MAINTENANCE MANUAL

JULY 1992

TM-9-2330-238-14 - Page 177 of 462

TM 9-2330-238-14

4-39. WHEEL CYLINDER REPLACEMENT.

This Task Covers:

a.

Removal

b.

Installation

Initial Setup:

Equipment Conditions:

Materials/Parts:

●

wheels chocked.

●

Rags (Item 11, Appendix E)

●

Semitrailer uncoupled from towing

●

Four Iockwasher

vehicle (para 2-11).

●

Wheel removed (para 4-49).

Tools/Test

Equipment:

●

Hub and brakedrum removed (para 4-48).

●

General mechanic’s tool kit

1.

Disconnect brake line (10) from multiple connector (11).

2.

Remove two fluid passage bolts (8) and ring spacer (7) from two tube tees (6). Pull tube tees away from cylinder

assemblies (17 and 18). Remove washers (5) from between tube tees and cylinder assemblies.

3.

Remove tube assemblies (9 and 12) from rear of backing plate (2).

CAUTION

Do not allow brake fluid to contact brake linings.

4.

Remove two brakeshoe return springs (13) and slide brakeshoes(14 and 15) away from wheel cylinder piston

rods.

5.

Remove four bolts (4), Iockwasher (3), cylinder assemblies (17 and 18), and spark shields (1 and 16) from

backing plate (2), Discard Iockwasher,

TA701981

4-79