FIGURE 8-2. FOUNDATION BRAKE COMPONENTS.
R e p l a c e cracked, badly scored, or severly
heat checked brake drums.
8-17. REFINISHING DRUMS.
a. Do not exceed maximum inside drum diameter
specification cast into brake drum.
b. Refinish both drums on an axle at the same
FIGURE 8-3. CHECKING FOR SCORED DRUM.
c. Use a finish of 180 micro-inches
Use new anchor pin bushings,
8 - 1 8 . CHECKING BRAKE PARTS.
cam rollers, roller shafts and lin-
a. Check brake shoe against anew shoe (if pos-
Do not use distorted shoes.
sible) for distortion.
d. Examine the cam face, cam washers, anchor
pins, clips and snap rings for wear, breakage, and
b. Check retract spring for elongation.