Parking Brake System: Service and Repair

Fig. 15 Parking Brake Assembly.. Expo & Sigma:

Fig. 16 Installation Of Return Spring. Expo & Sigma:

1. Raise and support vehicle and remove rear wheels.
2. Remove rear caliper as outlined under CALIPER.
3. Disassemble parking brakes in numbered sequence shown in Fig. 15, noting the following:
a. When removing the speed sensor from knuckle, use care not to hit pole piece at its tip against the rotor teeth or other parts.
b. Remove parking brake clips.
c. Disconnect parking brake cable from parking brake lever of shoe and lining assembly using suitable pliers.
d. Remove parking brake cable from backing plate.
4. Reverse numbered sequence shown in Fig. 15 to assemble parking brakes, noting the following:
a. Install return springs as shown in Fig. 16.
b. When installing brake disc, ensure that there is no corrosion or oil on parking brake drum.
5. Adjust rear wheel bearing as follows:
a. Inspect play of bearing while vehicle is raised and supported.
b. If any play is noted, remove hub cap, split pin and lock cap then loosen locknut.
c. Torque bearing nut to 14 ft. lbs.
d. Turn hub 180° and then return it to it's original position. Repeat this step several times.
e. Completely loosen locknut. Retorque locknut to 7.ft. lbs.
f. Repeat step d turning hub in same direction.
g. Retorque locknut to 7 ft. lbs.
h. Install lock cap and cotter pin.
i. Seat bearing as described in step d.
j. After securing wheel nuts, Ensure that rotary sliding resistance is .6 ft. lbs. when a new bearing is used or .05 ft. lbs. if bearing is reused.