Removing
1. Disconnect the cardan shaft.
2. Remove the drum.
A) Loosen the nut with a hammer and chisel.
b) Loosen the nut and remove the washer.
V) Loosen the parking brake lever.
G) Remove the drum.
Note: If it is difficult to remove the brake drum, turn the adjusting device in the direction of unlocking until the drum is released.
3. Remove two return springs.
A) Remove the two return springs from the top side of the brake shield, then separate the washer.
b) Remove the return springs from the underside.
4. Remove the brake pads and pad spreader lever.
A) Remove the retainer and holder.
b) Using pliers, disconnect the parking brake cable from the lever and remove the spring.
5. Remove the adjuster.
Parking brake (type 6.3).
1 - Lever for breeding pads,
2 - Thrust washer,
3 - Return spring,
4 - Washer,
5 - Retainer,
6 - Drum,
7 - Adjusting device,
8 - Brake pads,
9 - holder,
10 - Plug.
6. If necessary, disconnect the shoe spreading lever from the shoe.
Component Check
1. Measure the inner diameter of the brake drum.
- Maximum inner diameter: 161.0 mm
- Nominal inner diameter: 160.0 mm
If the drum is scored or worn, you can machine the brake drum on a lathe.
2. Measure the thickness of the lining on the brake pads:
- Max Thickness: 1.5mm
- Nominal Thickness: 4.0mm
If the pad lining thickness is less than the minimum, or shows signs of uneven wear, replace the brake pads.
3. Check up contact between blocks and a brake drum.
4. If necessary, replace the bolts and) Turn out bolts.
b) Insert new bolts into the brake drum.
V) Finally install the bolts as shown in the figure.
Parking brake assembly
Note: The assembled parts should look like the picture shown.
1. Apply high temperature grease to the brake shield as shown.
2. Install the brake pad spreader lever onto the brake pads.
3. Install the adjustment device.
4. Establish brake pads in gathering with the lever of dilution of pads.
A) Using pliers, connect the parking brake cable to the brake lever.
b) Install the pads on the brake shield.
V) Install the holder and retainer.
5. Install return springs.
A) Install the return spring from the underside of the brake shield.
b) Install the washer and return spring from the top side.
6. Install the brake drum.
A) Tighten the adjusting device until the blocks are completely unlocked.
b) Install the brake drum.
V) Install the washer and tighten the nut.
- Tightening torque: 127 Nm
G) Turn the adjusting device until the shoes are completely apart, then turn the adjusting device one tooth in the opposite direction.
e) With the shoes fully extended, make sure the drum is locked.
h) Release the parking brake lever and make sure the parking brake does not stick. Otherwise, turn the adjusting device one more tooth.
7. Coin the nut.
8. Connect the cardan shaft.
9. Check and adjust the parking brake.