TM 5-4220-233-14
Figure 4-30. Install Brake Shoes and Brake Cylinder.
(1)
Install new brake cylinder (1) onto backing plate assembly (2) and secure with two screw and washer
assemblies (3).
(2)
Install two push rods (4) into brake cylinder (1).
(3)
Secure parking brake lever to new rear brake shoe with pin (5), spring tension washer (6) and retainer (7).
(4)
Secure new brake shoes (8) to backing plate assembly (2) with two new pins (9) and holddown springs
(10).
(5)
Insert parking brake strut (11) and spring between brake shoes (8).
(6)
Install anchor post washer (12) onto backing plate assembly (2).
(7)
Install two retractor springs (13) onto brake shoes and around anchor post of backing plate assembly (2).
(8)
Insert adjuster assembly (14) between brake shoes (8).
(9)
Install adjuster spring (15) onto brake shoes (8).
(10)
Apply a thin coat of high-temperature silicone grease (Item 11, Appendix D) to bearing surfaces of brake
assembly.
(11)
Connect brake line to brake cylinder (1).
(12)
Install hub and drum assembly as prescribed in paragraph 4-42.
(13)
Install wheel & tire assembly as prescribed in paragraph 3-5.
(14)
If brake shoes on other side of trailer are to be replaced repeat this procedure, otherwise bleed and
service brake system as prescribed in paragraph 4-47.
(15)
Adjust brake assembly as prescribed in paragraph 4-43.
4-69
