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10. Brake System
Brake Drum
10-12
Removal
Use a vacuum cleaner and other suitable tools
to clean the brake parts to minimize the
hazard caused by the asbestos dust.
Caution
● Inhaling asbestos dust may cause
respiration system disorder or even
cancer. Never use compressed air or dry
brush to clean the brake system.
z Grease on brake shoe will reduce braking
efficiency.
Remove the wheel rim and brake drum.
Inspection
Check the brake drum for wear or damage.
Replace the wheel hub if necessary.
Measure the brake drum inner diameter at
several points and record the largest value.
Service limit： 130.5mm
Caution
Remove the rust by using #120 sand
papers.
z An inside micrometer must be used when
measuring the brake drum inner
diameter.
Brake drum
Brake Shoe
Inspection
Measure the brake shoe thickness at three
points (both ends and center).
If the thickness is less than specified, or if it is
contaminated by oil or grease, replace as a
set.
Service limit： 2.0 mm
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