The brake caliper V-ways and brake caliper mounting plate support rails will wear and eventually cause the brake caliper to fit loosely. Bendix® uses shims to adjust for this wear. Use the following procedure to replace the linings:

1. Remove the brake caliper retainer screw (4).
2. Tap out the brake caliper retainer (5) and the brake caliper retainer spring (6).
3. Remove the brake caliper (7). Refer to Brake Caliper Replacement .
4. Clean the V-way surfaces of the brake caliper with a wire brush.

File smooth any nicks and gouges.

5. Clean the support rail surfaces of the brake caliper mounting plate with a wire brush.

File smooth any nicks and gouges.




6. Lay a straight edge across the brake caliper V-way surfaces.
7. Measure the maximum depth of the brake caliper V-way surfaces.
8. If the brake caliper V-way surfaces are worn to a depth of 1.27 mm (0.050 in) or more, replace the brake caliper.
9. Temporarily mount the brake caliper on the brake caliper mounting plate.
10. Install a new brake caliper retainer.
11. Install the brake caliper retainer bolt.

Important: 

•	Do not install the spring at this time.

•	Make sure that the tool is equally distant from each edge of the brake caliper.

12. Insert a screwdriver between the brake caliper and the brake caliper retainer.
13. Pry firmly in order to ensure that the brake caliper is seated against all three slide surfaces.



14. Measure the bumper gap with the largest feeler gage (or stack of gages) that fit in the gap on either side of the screwdriver.
15. Select the correct size shim. Refer to Caliper Wear Shim Specifications .
16. If the gap exceeds 3.68 mm (0.145 in), replace with a new brake caliper.
17. Re-measure the gap.
18. If the bumper gap with the new brake caliper is 1.49-3.68 mm (0.059-0.145 in), insert a screwdriver between the brake caliper and the brake caliper retainer, and pry firmly in order to ensure that the brake caliper is seated against all three slide surfaces.
19. If the bumper gap with the new brake caliper exceeds 3.68 mm (0.145 in), replace the brake caliper mounting plate.




Important: Use a new brake caliper retainer and brake caliper retainer spring in order to assemble the new components.

20. Remove the brake caliper.
21. Install the selected shim on the brake caliper mounting plate support rail opposite to the brake caliper retainer and spring V-way.
22. Install the brake caliper.

Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

23. Install the brake caliper retainer screw.

Tighten
Tighten the screw to 40 N·m (29 lb ft).




24. Measure the bumper gap.
25. If the gap exceeds 1.47 mm (0.058 in), install a thicker shim or replace the components as necessary.