Wheel Cylinder: Service and Repair

Component Notes And Information

NOTE: During removal and installation procedures, refer to the component location illustration above and component notes below.

1 Spring plate
- To remove push against the spring and turn through 90°
2 Spring
3 Brake shoe with lever for parking brake
4 Upper return spring
- Unhook with pliers
5 Lower return spring
- Lubricate contact points with G6, or equivalent, grease
6 Wedge spring
7 Brake shoe
- Minimum lining thickness: 2.5 mm
8 Cap
- Remove to check brake lining thickness
9 Tensioning pin
10 Wheel speed sensor
- Used only on models with ABS
11 Backing plate
12 Socket-head bolt
- Tighten to: 10 Nm (7 ft lb)
13 Wheel cylinder
- Checking for leaks. Testing and Inspection
14 Adjusting wedge
- To remove or install the brake drum, push upwards through a wheel bolt hole.
15 Push rod
- Lubricate contact points with G6, or equivalent, grease
16 Locating spring
- Unhook with pliers


Removal
1. Remove brake drum.
2. Remove spring retainers (1).
3. Unhook lower return spring (5).
4. Remove brake shoes.
5. Unhook parking brake cable.
6. Disconnect fluid line, cap and seal lines and fittings.
7. Remove socket head bolts (12) retaining wheel cylinder to backing plate.
8. Remove wheel cylinder from backing plate.

Installation

1. Position wheel cylinder into backing plate
2. Tighten socket head bolts (12).
3. Connect fluid lines to wheel cylinder.
4. Connect parking brake cable to brake lever.
5. Place brake shoes on wheel cylinder pistons.
6. Connect lower return spring and install brake shoes onto lower support.
7. Install wedge spring.
8. Install springs and retainers.
9. Install brake drum and adjust wheel bearing play. Refer to Transmission and Drivetrain.
10. Bleed brake system. Service and Repair
11. Depress brake pedal firmly one time to set self-adjusting mechanism.