Front

WARNING: Never use an air hose or dry brush to clean brake assemblies. Use an OSHA-approved vacuum cleaner to avoid breathing brake dust.

DISC RUNOUT
1. Loosen the front wheel nuts slightly, then raise the vehicle and support on safety stands. Remove the front wheels.





2. Remove the caliper bolt (pin A), and pivot the caliper up out of the way.

NOTE: Check the hoses and pin boots for damage and deterioration.





3. Remove the pad shims, pad retainers and pads.

4. Inspect the disc surface for damage or cracks. Clean the disc thoroughly and remove all rust.





5. Use wheel nuts and suitable plain washers to hold the disc securely against the hub, then mount a dial indicator as shown, and measure the runout at 10 mm (0.4 inch) from the outer edge of the disc.

Brake disc runout (MAX): 0.10 mm (0.004 inch)
Max Refinish Limit: 21.0 mm (0.83 inch)

NOTE: New disc should be refinished if its runout is greater than 0.10 mm (0.004 inch).

6. If the disc is beyond the service limit, refinish the brake disc with an on-car brake lathe. The Kwik-Lathe produced by Kwik-way manufacturing Co. and the "Front Brake Disc Lathe" offered by Snap-on Tools Co. are approved for this operation.


DISC THICKNESS AND PARALLELISM



1. Using a micrometer, measure disc thickness at eight points, approximately 45° apart and 10 mm (0.4 inch) in from the outer edge of the disc.

NOTE: Replace the brake disc if the smallest measurement is less than the max. refinishing limit.

Brake disc thickness: 22.9 - 23.1 mm (0.90 - 0.91 inch)
Max refinishing limit: 21.0 mm (0.83 inch)
Brake Disc Parallelism: 0.015 mm (0.0006 inch) max.

2. If the disc is beyond the service limit for parallelism, refinish the brake disc with an on-car brake lathe. The Kwik-Lathe produced by Kwik-Way Manufacturing Co. and the "Front Brake Disc Lathe" offered by Snap-on Tools Co. are approved for this operation.