Contents: Rear wheel drum brake assembly ⬇ Removal ⬇ Installation ⬇ Checking the tightness of wheel…⬇ Checking the thickness of the brake…⬇
Important: Before removing the wheel brake cylinder, rear axle brake mechanism, or disconnecting the brake line from the wheel brake cylinder, it is necessary to secure the brake pedal with a spacer bar to hold the brake pedal. The brake line pipe screws should always be tightened to 14 Nm. After completing work on the rear wheel brake mechanism: Release the parking brake control lever; press the brake pedal firmly several times.
Rear wheel drum brake assembly
- 1 - Plate
- 2 - Compression spring
- 3 - Brake shoe tension spring
- 4 - Release lever
- 5 - Wedge (pin), when removing and installing the brake drum, move the wedge upward through the hole for the wheel mounting bolt (releasing the brake)
- 6 - Wheel brake cylinder
Removal
Remove the brake pads. Install the brake pedal holding device. Unscrew the brake line. Remove the wheel brake cylinder.
Installation
Screw on the brake line. Remove the brake pedal holding device. Install the brake pads. Bleed the brake system.
- 7 - Hexagon socket head cap screw, 8 Nm
- 8 - Finger
- 9 - Brake caliper (brake mechanism shield)
- 10 - Plug, remove when checking brake shoe lining wear
- 11 - Sliding plug, lubricate the mating surfaces with the brake shoe with solid plastic grease
- 12 - Brake pad, minimum lining thickness without backing pad: 1.5 mm
- 13 - Wedge extension spring (pins)
- 14 - Lower return spring
- 15 - Upper return spring
- 16 - Brake shoe with parking brake system engagement lever
Checking the tightness of wheel brake cylinders
Squeeze out the dust cover. To do this, you should use a dismantling wedge. If there is brake fluid inside the dust cover, the wheel brake cylinder must be replaced. When squeezing the dust cover, be careful not to damage it.
Checking the thickness of the brake shoe lining through the inspection hole located in the brake shoe holder
Loosen plug "1" on brake shoe holder "2". Check the brake shoe lining thickness through the inspection hole located in the brake shoe holder. Minimum thickness of the pad without the support block (wear limit) -1.5 mm.
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Important: Do not allow the brake pad linings to become contaminated with brake fluid or grease.