B O G I E AND REAR AXLE, SERVICE BRAKES, AND FRONT AXLE
ASSEMBLIES REPAIR INSTRUCTIONS
Section I. SERVICE BRAKES AND AIR BRAKE COMPONENTS
(3) Install the wheel and hub assemblies
(TM 5-3820-205-20/1).
The service brake assembly in the roll
( 4 ) Adjust the brakes (TM 5-3820-205-
crusher is air actuated. The assembly consists
20/1).
of an air relay,valve, air chambers, brakeshoes,
lines, hose, and fittings. Air is supplied by the
towing vehicle.
2 2 8 . Air Relay Valve Assembly Removal
and Disassembly
225. Service Brake Assembly Removal
a. Removal. Remove, the air relay valves
and Disassembly
a s s e m b l y (TM 5-3820-205-20/1).
a. Remove the wheel and hub assemblies
(TM 5-3820-205-20/1).
assemble the air relay valve assembly.
b . Remove the slack adjuster (TM 5-3820-
205-20/1).
229. Air Relay Valve Assembly Cleaning,
c . Remove the brakeshoe (TM 5-3820-205-
I n s p e c t i o n , and Repair
20/1).
a. Cleaning. Clean all parts with an ap-
d . Refer to figure 64, and disassemble the
proved cleaning solvent and dry thoroughly.
brake assembly.
b . I n s p e c t i o n a n d R e p a i r . Inspect all parts
f o r wear and damage. Replace or repair worn
226. Service Brake Assembly Cleaning,
o r damaged parts.
I n s p e c t i o n , and Repair
a. Cleaning. Clean all parts with an ap-
230. Air Relay Valve Assembly Reassembly
proved cleaning solvent and dry thoroughly.
a n d Installation
b . I n s p e c t i o n a n d R e p a i r . Inspect all parts
f o r wear and damage. R e p a i r or replace worn
a s s e m b l e the air relay valve assembly in the
or damaged parts as necessary.
r e v e r s e order.
227. Service Brake Assembly Reassembly
b. Installation. Install the air relay valve as-
a n d Installation
sembly (TM 5-3820-205-20/1).
a. Reassembly. Refer to figure 64, and reas-
semble the brake assembly in the reverse order.
2 3 1 . Air Chamber Assembly Removal
and Disassembly
b. Installation.
a . Removal. Remove the air chamber assem-
(1) Install the brakeshoe assembly (TM
bly (TM 5-3820-205-20/1).
5-3820-205-20/1).
(2) Install the slack adjuster (TM 5-
b . Disassembly. Refer to figure 66, and dis-
3820-205-20/1).
a s s e m b l e the air brake chamber assembly.
AGO 8498A