TM 5-4310-452-14
4-67. TRAILER BRAKESHOES AND WHEEL CYLINDER REPLACEMENT.
This Task Covers:
a. Removal
c. Adjustment
b. Installation
Initial Setup:
Equipment Conditions:
Materials/Parts:
• Engine off
• Two self-locking screws
• Engine off.
• Trailer parked on flat, level surface.
Tools/Test Equipment:
• Trailer tire removed (see paragraph 4-73).
• General mechanic's tool kit
• Trailer brakedrum removed (see paragraph 4-66).
a.
REMOVAL
1.
Remove 2 springs (9) and guide plate (8) from backing plate (3).
2.
Remove 2 hold-down springs (15) and 4 spring seats (14) by depressing hold-down springs and turning spring seats
on pins (19).
NOTE
Perform step 3 if removing front brakeshoes only.
3.
Remove strut (11) and spring (10) from slot in brakeshoes (7).
4.
Remove 2 brakeshoes (7), spring (12), and brake adjuster socket (13) from backing plate (3).
NOTE
Perform steps 5 and 6 on front brakeshoes only.
5.
Disconnect parking brake cable assembly (20) from lever (18) and remove cable from backing plate (3).
6.
Remove retainer (16), lever (18), nut (17), and pin (6) from brakeshoes (7).
7.
Disconnect brake line (1) from wheel cylinder assembly (5).
8.
Remove 2 self-locking screws (2) from backing plate (3) and remove wheel cylinder assembly (5) and link (4).
Discard self-locking screws.
9.
Remove 5 nuts (21) and backing plate (3) from axle.
b. INSTALLATION
1.
Install backing plate (3) on axle with 5 nuts (21).
2.
Position wheel cylinder assembly (5) and link (4) in place on backing plate (3) and install 2 new self-locking screws
(2).
3.
Connect brake line (1) to wheel cylinder assembly (5).
NOTE
Perform steps 4 and 5 for front brakeshoes only.
4.
Install lever (18), pin (19) with nut (17), retainer (16), and pin (6) on longer brakeshoe (7).
4-130
