TM 9-2330-294-14
4-31. Brake Shoe Assembly Inspection and
Replacement
a. Inspection. Remove wheel and hub and drum
damage and wear. New lining has approximately
inch of stock above center rivets and approximately
inch of stock above end rivets. Replace if lining is
brake shoe assembly rest pads and the anchor
damaged or worn within .030 inch of rivet heads. By
plunger and adjusting bolt slots.
recording lining wear between scheduled annual
(2) Rotate adjusting bolts to aline slots in bolt
brake maintenance periods, expected wear can be
retainer with brake shoe webs, being certain that
calculated. Lining that will not last until the next
bolts are not bottoming in adjusting plunger (para 4.
scheduled maintenance interval should be replaced.
35e (7).
The lining must be replaced if it haa cracks that are
50% of the way through a new lining. (Cracks 3/8
inch deep in a new lining 3/4 inch thick).
CAUTION
Take care that return springs overlap as
(1) Remove wheel end hub and drum assembly
(2) Lift brake shoe assembly out of plunger
NOTE
slots and hold down clip, and tilt brake shoe to
Brake shoes should be installed with the
unhook return springs. Remove brake shoe assembly
direction of rotation arrow, stamped on the
brake shoe web, pointing in the direction of
and return springs. Do not remove dust shield or
wheel rotation for forward movement.
hold down clip, unless in need of service.
(3) Hook the return springs to the upper brake shoe
(3) Service plunger housing asssmblies by
web.
(4) Place the upper brake shoe web in the hold down
c. Repair. Repair of brake shoe assembly should
clip.
be accomplished by direct support maintenance
(5) Make sure that the long radius of the brake shoe
web is in the adjusting bolt slot and the short radius in the
d. Installation.
anchor plunger slot. (fig 29.1 )
(1) Apply film of GAA grease to new or relined
Change 2