Bronco L6-300 4.9L VIN Y 1-bbl (1983)
Brake Pad: Service and Repair
REMOVAL
1.
To avoid fluid overflow when pistons are pushed into caliper, remove some brake fluid from master cylinder.
2.
Raise vehicle and remove wheel assembly.
3.
Remove key retaining screw then, using a brass drift and hammer, drive out the key and spring.
4.
Remove caliper and its support by rotating the key and spring end out and away from the rotor. Slide opposite end of caliper clear of the slide in
the support and off the rotor. Place caliper on tie rod or axle. Do not allow the brake hose to support weight of caliper, as this can damage the
hose.
5.
Remove caliper brake shoe anti-rattle spring and inner and outer shoe and lining assemblies.
6.
Clean and inspect caliper assembly. Thoroughly clean areas of caliper and support that contact during the sliding action of the caliper.
Fig. 3 Bottoming caliper pistons
Fig. 4 Caliper spring & key
INSTALLATION
1.
Place used inner lining and shoe assembly over the pistons, then place a C-clamp on the caliper housing midway between the two pistons over the
lining and shoe assembly, Fig. 3. Tighten the clamp until pistons are bottomed in caliper, then remove C-clamp and lining and shoe assembly.
2.
Install the new inner and outer shoe and lining assemblies, and the anti-rattle spring.
3.
Position caliper rail into the slide on the support and rotate the caliper onto rotor.
4.
Position the key and spring, Fig. 4, then install the subassembly between the caliper and support. Note that the spring is between the key and
caliper and that spring tangs overlap the ends of the key.
5.
If necessary use a screwdriver to hold caliper against support assembly, then using a hammer, drive the key and spring into position aligning the
correct notch with the existing hole in the support.
6.
Install the key to support retaining screw and torque to 12---20 ft. lbs.
7.
Install wheel assembly and lower vehicle. Check brake fluid level and add as necessary with heavy duty brake fluid.
8.
Depress brake pedal several times to seat linings on rotor. Do not move vehicle until a firm brake pedal has been obtained.
