Removing
Remove the brake drum see above.
Press the spring plate strongly with pliers against the pressure spring and turn it 90° (1/4 turn). Press the pin on the reverse side of the brake shield forward while pressing.
Remove the second spring plate.
Remove the lower return spring.
Remove the brake pads from the lower support by hand and remove the lower return spring.
Remove the handbrake cable.
Clamp the brake pads in a vise.
Remove wedge tension spring and upper tension spring with pliers.
Clamp the primary shoe in a vise and remove the extension spring.
Installation
Be sure to use brake shoes of the same quality, blow the brake drum and brake shield with compressed air if possible. When the brake pads are removed, do not press the brake pedal, as this will cause the pistons to slip out of the wheel brake cylinder. If the wheel brake cylinder is wet, it must be repaired. If there are marks, grind the brake drum. When doing this, always grind both drums of the rear axle.
Clamp the pressure plate in a vise, install the tension spring and insert the brake shoe into the pressure plate.
Insert wedge. The wedge is located between the primary block and the pressure plate.
Attention: The tab on the wedge must face the pressure plate.
Insert the brake shoe with lever, the brake mechanism into the groove of the pressure plate (fig.46-360).
Install the upper return spring
Connect the handbrake cable to the brake lever.
Support the brake shoes on the pistons of the wheel brake cylinder.
Install the lower return spring and support the brake pads on the lower support.
Attach the extension spring to the wedge.
Pass the pins of the pressure springs through the holes in the brake shoes. Insert the pressure springs, attach the spring plate with pliers and compress the spring. While doing this, hold the pin on the other side of the brake shield. Turn the spring plate with pliers by 90° (1/4 turn) and thus fix. Install the second spring plate in the same way.
Install the brake drum and adjust the axial clearance of the wheel bearing, see above.
Depress the foot brake pedal repeatedly. Thanks to this, the rear wheel brakes are adjusted.
Screw on the wheel, lower the vehicle and tighten the wheel bolts crosswise to 110 Nm.
Perform test braking while driving at medium speed.
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