2-43. SERVICE BRAKE MAINTENANCE (cont)
a. Service Brake Assembly (cont).
Replace if worn to 3/32 inch or less; or
a. Shoe and linings (6)
Inspect for wear
if contaminated by lubricant or brake
and signs of over-
Don't depress brake pedal completely in following step; depress
pedal only enough to check that brake shoes expand.
Replace if necessary
Inspect for fluid
b. Wheel cylinder (9)
leakage at boots.
pedal and check
that brake shoes
brake pedal and
check that brake
If brake shoes don't expand or retract in the above step, this
indicates that wheel cylinder piston is sticking.
c. Retaining hardware
Inspect for missing Replace missing parts
If brake shoes, wheel cylinder, or retaining hardware are okay,
reinstall axle shaft and hub assembly (para 2-39f) and wheel
assembly and perform above procedures on remaining wheel and
axle. If brake shoes, wheel cylinder, or retaining hardware are
not okay or other problems are observed, proceed to step 2