5 - 14
BRAKES - BASE
HYDRAULIC/MECHANICAL (Continued)
Fig. 15 Rear Brake Rotor Comparison
1 - BRT BRAKE ROTOR
2 - STANDARD ROTOR THICKNESS
8.75-9.25 MM
3 - PERFORMANCE ROTOR THICKNESS
11.75-12.25 MM
4 - BR4 PERFORMANCE BRAKE ROTOR
5 - INDENTIFYING MACHINED AREA
The rear wheel drum brakes are a two-shoe, inter-
nal-expanding type with an automatic adjuster screw
(Fig. 17). The automatic adjuster screw is actuated
each time the brakes are applied. The automatic
adjuster screw is located directly below the wheel cyl-
inder.
DIAGNOSIS AND TESTING - DRUM BRAKE
AUTOMATIC ADJUSTER
To properly test the drum brake automatic
adjuster, the aide of a helper inside the vehicle to
apply the brakes will be necessary.
(1) Raise the vehicle. (Refer to LUBRICATION &
MAINTENANCE/HOISTING - STANDARD PROCE-
DURE).
(2) Remove the access plug from the rear adjust-
ment slot in each brake support plate.
Fig. 16 Rear Drum Brakes
1 - WHEEL CYLINDER
2 - SEAL
3 - SUPPORT PLATE
4 - BRAKE SHOES
5 - RETAINER CLIP
6 - DUST CAP
7 - NUT
8 - DRUM
9 - HUB AND BEARING
Fig. 17 Drum Brake Shoes (Left Side Shown)
1 - WHEEL CYLINDER
2 - AUTOMATIC ADJUSTER SCREW ASSEMBLY
3 - RETURN SPRING
4 - HOLD DOWN CLIP
5 - HOLD DOWN CLIP
6 - AUTOMATIC ADJUSTER LEVER AND SPRING
7 - PARK BRAKE LEVER
8 - PARK BRAKE CABLE
9 - FRONT BRAKE SHOE
10 - BRAKESHOE TO ANCHOR SPRING
11 - BRAKE ANCHOR PLATE
12 - REAR BRAKE SHOE
PT