TM 9-2330-238-14
4-38. BRAKESHOE REPLACEMENT.
This Task Covers:
a.
Removal
c.
Installation
b.
Cleaning and Inspection
Initial Setup:
Equipment Conditions:
Materials/Parts:
l Wheels chocked.
l Rags (Item 11, Appendix E)
l Semitrailer uncoupled from towing
l Dry cleaning solvent (Item 14, Appendix E)
vehicle (para 2-11).
l Seven lockwashers
l Wheel removed (para 4-49).
• Hub and brakedrum removed (para 4-48).
Tools/Test Equipment:
l General mechanic’s tool kit
a.
REMOVAL
WARNING
1.
2.
3.
4.
5.
6.
DO NOT handle brakeshoes, brakedrums, or other brake components unless area has
been properly cleaned. There may be asbestos dust on these components which can
be dangerous if you touch it or breathe it. Wear an approved filter mask and gloves.
Never use compressed air or a dry brush to clean brake components. Dust may be
removed using an industrial-type vacuum cleaner. Clean dust or mud away from brake
components with water and a wet, soft brush or cloth. Failure to follow this warning may
result in serious illness or death to personnel.
Remove two brakeshoe return springs (22), slotted washers (5), flatwashers (6), and spring tension washers (7)
from four spring pins (8).
Remove nut (1), Iockwasher (2), flatwasher (3), sleeve spacer (4), and square neck bolt (12) from front
brakeshoe (9). Discard Iockwasher.
Remove front brakeshoe (9) and connecting link (13) from backing plate (14). Remove connecting link from front
brakeshoe spring pin (8).
Remove capscrew (20), lockwashers (2 and 16), flatwasher (3), sleeve spacer (4), bracket (17), and nut (15)
from rear brakeshoe (18). Discard Iockwasher.
Remove rear brakeshoe (18) and internal lever (19) from backing plate (14). Remove internal lever from rear
brakeshoe spring pin (8).
Remove four spring pins (8), Iockwasher (10), and nuts (11) from brakeshoes (9 and 18) if replacement is
required, Discard Iockwasher.
4-76
