30
Section 5
Recommended Periodic Service
Minor Inspection:
Mechanical Brakes
1. Check lining wear. Lining wear must be even
on both shoes.
2. Check the lining to brake drum contact pattern.
Contact must be the same on both shoes.
3. Check the operation of the brake by actuating
and releasing the brake control and observing
the actuation and release.
4. Check the brake adjustment.
Major Inspection:
Mechanical Brakes
Major inspection must be made at every reline
and when there is poor brake performance.
1. Check all the points described in the minor
inspection procedures.
2. Check for worn or corroded areas where
components contact or slide against each
other.
3. Replace all shoe return springs.
4. Check the cam (if used) for wear, rust, bending
and seizing.
5. Check the actuator lever for rust, bending,
seizing or other damage.
6. Check the spider or backing plate for
looseness and elongated mounting holes.
7. Check for loose or broken lining rivets.
8. Check for grease or oil on the lining. Do NOT
reuse contaminated linings.
9. Check the brake shoes for bending and rust.
10. Check the actuator pawl, if used, for wear and
correct alignment.
11. Check the brake drums for wear and damage.
12. Before assembly, lubricate the sliding parts
with a thin layer of Meritor specification 0-616
brake lubricant such as Texaco Thermatex
EP-2 grease or equivalent listed on page 31.
