SERVICE BRAKES - SHOES AND LINING MAINTENANCE
Ground Boards Emplaced
Antiseize Compound (WP 0086 00-2)
Landing Legs Down
Grease, GAA (WP 0086 00-2)
Semitrailer Disconnected from Prime Mover
Tires and Wheels Removed (WP 0016 00-2)
Brake Drum Removed (WP 0036 00-2)
General Mechanic's Tool kit (WP 0077 00-9)
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.
Wipe excess lubricant from area of brake shoe linings to prevent any
contamination of linings. Replace all wheel end linings if one has been
contaminated with lubricant. Failure to follow this warning may cause
brakes to malfunction, resulting in serious injury or death.
There are six brake shoe assemblies and they are removed and installed the
same way. This procedure covers one brake shoe assembly.
Dispose of all hazardous material in accordance with TB 43-0244
If slack adjusters cannot be adjusted properly or the hex nut is damaged,
brakes must be caged according to WP 0007 00-14.
1. Measure brake lining thickness. Thickness must be NO LESS than 1/4 in. (6.4mm). If brake lining is less
than 1/4 in. (6.4mm), replace brakeshoes.
2. Measure clearance between top of brake lining and top of all rivet heads. Clearance must be a minimum of
1/32 in. (0.8mm). If clearance is less that 1/32 in. (0.8mm) , replace brakeshoes.