C 3500 HD Truck 2WD V8-6.5L DSL Turbo VIN F (2001)
Brake Caliper: Adjustments
Brake Caliper/Mounting Plate Wear Adjustment
Bendix calipers have wear shims available to compensate for wear at the caliper to anchor plate contact points. A rattling sound, originating from the
front brake area, will occur when the caliper and anchor plate are excessively worn. Use the following procedure to measure and correct this condition.
Notice: Support the brake caliper with heavy mechanic's wire, or equivalent, whenever it is separated from it's mount and the hydraulic flexible brake
hose is still connected. Failure to support the caliper in this manner will cause the flexible brake hose to bear the weight of the caliper, which may
cause damage to the brake hose and in turn may cause a brake fluid leak.
1. Remove the caliper.
2. Clean surfaces (1-4) with a wire brush.
3. Smooth any deep nicks or gouges with a file.
4. Measure the caliper contact surface for wear by performing the following steps.
4.1.
Lay a straight edge (1) across the caliper surfaces.
4.2.
Measure the maximum depth of any wear on the surfaces using feeler gage (2).
4.3.
Replace any calipers worn to a depth of 1.25 mm (0.050 inch) or more.
5. Measure caliper to anchor plate wear by performing the following steps.
5.1.
Install the caliper.
5.2.
Install a new standard size key without the spring.
5.3.
Install the key retention bolt.
5.4.
Insert a screw driver into the center of the key bumper gap (1).