Meritor Automobile Accessories MM-9902 Manuel D’Utilisation
11
Inspect the Brake Components
WARNING
Use Meritor parts only. Do not use parts
manufactured by other suppliers. Use of
non-Meritor parts can cause damage, loss of
braking and serious personal injury.
Lining Thickness
Lining material thickness must not be less than
0.200-inch (5.1 mm). Replace the linings before
the lining material thickness reaches this
specification.
Anti-Rattle Springs
1. Anti-rattle springs are attached to the linings.
Inspect for bent, cracked or broken springs.
2. If you find damaged springs, replace both
springs.
Seals
Replace the caliper if you find cracked, torn or
damaged seals.
CAUTION
Install only the specified components when you
service the caliper. Do mix components from
other calipers. Installing non-specified
components can cause the caliper to operate
incorrectly and can cause equipment damage.
Caliper
1. The caliper should slide freely on the slide
pins. Slide the caliper back and forth to
check for clearance between the disc and
pad.
2. Check that the linings slide freely in the
caliper.
3. If components are worn enough to restrict
free movement of the caliper or linings,
replace the caliper.
5. Measure the distance from the bottom of the
chamber to the center of the clevis pin while
the brakes are applied. Figure 5.1.
Figure 5.1
MEASURE
THIS
DISTANCE
MEASURE ADJUSTED
CHAMBER STROKE
6. Have another person release and hold the
brakes.
7. Measure the distance from the bottom of the
chamber to the center of the clevis pin while
the brakes are released.
•
To determine push rod travel (adjusted
chamber stroke): Subtract the
measurement you recorded in Step 5 from
the measurement recorded in Step 7. The
difference is the push rod travel (adjusted
chamber stroke). Push rod travel (adjusted
chamber stroke) must not exceed
2.0-inches (50.8 mm).
•
If push rod travel (adjusted chamber
stroke) exceeds specification: Refer to
Section 6.