6-8. SERVICE BRAKES--SHOES AND LINING REPLACEMENT.
This Task Covers:
c. Follow-On Tasks
Tools and Special Tools:
Tool kit, general mechanic's (Item 4, Appendix B-3)
Grease, GAA (Item 6, Appendix F)
Appendix C - LO
Semitrailer disconnected from prime mover
Other wheels chocked
Tires and wheels removed (para. 6 -18)
Brake drum removed (para. 6 -9)
Ground boards /Chocks emplaced
Clean and check service brakes and all brake components for wear and
damage. Replace worn or damaged parts. At Triennial Service replace
all springs, pins, rollers, clips, and bushings on each axle end. May
cause injury to personnel and damage to the equipment.
Do not allow lining surfaces to become contaminated with any
There are four brake shoe assemblies and they are
removed and installed the same way. This procedure
covers one brake shoe assembly.
Support axle on both side with jack stands.
Push S-cam end of lower shoe and lining (2) down. Pull lower roller retainer (12) to remove roller
(11) and retainer (12).