Inspect the brake linings every 10 000 km (6,000 miles)
and any time the wheels are removed. Check the following:
| • |
Inspect the outer brake
lining at each end of the caliper. The highest rate of wear occurs at this
point. |
| • | Check the inner brake lining thickness for premature wear. Some
inboard shoes and brake linings have a thermal layer against the shoe that
is integral to the lining. Do not confuse this extra layer with uneven
inboard-outboard brake lining wear. |
| • | Look down through the inspection hole on top of the caliper and
inspect the inner brake linings. Replace bonded brake shoe and lining assemblies
when the thickness of any lining is worn within 0.76 mm (0.030 in)
of the shoe. Replace riveted shoe and lining assemblies when the thickness
of any lining is worn within 0.76 mm (0.030 in) of any rivet
head. Always replace the disc brake shoe and lining assemblies as a complete
axle set. |
| • | Check the flatness of new or used brake linings. Place the inboard
and the outboard brake lining surfaces together. Check for a gap between the
brake lining surfaces. The gap should not exceed 0.13 mm (0.005 in)
at the middle of the lining surfaces. |
The outboard brake shoe and lining assembly has a wear indicator (1)
that contacts the rotor when the lining needs replacement (2) and the brakes
are applied. This produces a loud scraping noise.
