Brake Shoe: Service and Repair

Brake Shoes

Special tools, testers and auxiliary items required

• Hook (3438)

• Torque Wrench (V.A.G 1331)

• After replacing the brake cylinder, the brake pads and the brake shoes, press the brake pedal once so that the brake shoes are properly seated.

• Use Brake filling and bleeding equipment (VAS 5234) to extract brake fluid from brake fluid reservoir.

• Before removing a brake cylinder, a brake carrier or disconnecting a brake hose from the brake cylinder, the brake pedal actuator (V.A.G 1869/2) should be installed (relieve pressure when doing this).

Removing

- Loosen the wheel bolts.

- Raise the vehicle.

- Remove the wheel.

- Reset brake. Refer to => [ Reset Rear Drum Brake ] Procedures.

- Remove brake drum. Refer to => [ Brake Drum ] Brake Drum.

- Remove the spring plate - 1 - and pressure springs.






- Press against the spring and twist 90°

- Disengage the return spring - 3 - and the (3438) underneath.

- Pry out the lower brake shoe with a screwdriver.

- Lay the brake shoe on the support plate.

- Disengage the parking brake cable - 2 -.

- Remove the brake shoes between the wheel hub and the brake carrier.

Disassembling

- Clamp brake shoes into vise.

- Remove the tension spring - 4 - for the wedge - 2 -.






1. (3438)


- Disengage the upper return spring - 3 -.

- Disengage the contact spring - 4 -.






1. (3438)


- Remove the pressure rod - 2 - and wedge - 3 - from the brake shoe.

Cleaning


Do not blow brake system using compressed air, the dust produced is harmful to health!

• Use only appropriate solvents for cleaning brake system.

Installing

Install in reverse order of removal. Note the following:

- Hook the contact spring - 4 - into the pressure rod - 2 -.






1. (3438)


- Fit in the wedge - 3 - at the same time.

Installation position:

The elevation - arrow - must be visible when installing.

- Attach the brake shoe with the parking brake lever to the pressure rod.

- Attach the return spring - 3 -.






1. (3438)


- Attach the tension spring - 4 - for the wedge - 2 -.

Lubricate the contact surfaces for the brake shoes on the support plate - arrow - and on the brake carrier - arrow - (distributed on the circumference; 6 places) using adhesive lubricating paste (G 000 650).






- Install the brake shoes between the wheel hub and the brake carrier.

- Mount the brake shoes on the brake cylinder piston - 1 -.






- Attach the parking brake cable - 3 - to the parking brake lever.

- Install the return spring - 5 - and the (3438) underneath.

- Pry out the brake shoe behind the lower support - 4 -.

- Install the spring plate - 2 - with the pressure spring and turn 90°.

- Install the brake drum. Refer to => [ Brake Drum ] Brake Drum.

- Install the wheels and tighten them.

- Adjust parking brake. Refer to=> [ Parking Brake, Adjusting, with Drum Brake ] Parking Brake, Adjusting, with Drum Brake.

Tightening Specification