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Rear brake drum - removal, inspection and refitting
Braking system / Rear brake drum - removal, inspection and refitting


Note: To prevent uneven braking, BOTH rear brake drums should be renewed at the same time.

Removal
1 Chock the front wheels, release the handbrake and engage 1st gear (or УPФ).

Loosen the relevant wheel nuts, jack up the rear of the vehicle and support it on axle stands. Remove the wheel.

2 Remove the two special clips (where fitted), and withdraw the brake drum over the wheel studs. If the drum will not pass over the shoes, it is possible to release the automatic adjuster mechanism by prising out the small rubber grommet near the centre of the backplate, and inserting a screwdriver through the small hole. The self-adjusting ratchet can then be rotated, so that the brake shoes move to their lowest setting (see illustrations). Refit the rubber grommet before proceeding.

5.2A Releasing the automatic adjuster mechanism with a screwdriver inserted
5.2A Releasing the automatic adjuster mechanism with a screwdriver inserted through the small hole in the backplate

5.2B Removing a rear brake drum
5.2B Removing a rear brake drum

3 With the brake drum removed, clean the dust from the drum, brake shoes, wheel cylinder and backplate, using brake cleaner or methylated spirit. Take care not to inhale the dust, as it may contain asbestos.

Inspection
4 Clean the inside surfaces of the brake drum, then examine the internal friction surface for signs of scoring or cracks. If it is cracked, deeply scored, or has worn to a diameter greater than the maximum given in the Specifications, then it should be renewed, together with the drum on the other side.

5 Regrinding of the brake drum is not recommended.

Refitting
6 Locate the brake drum over the wheel studs, and (where fitted) refit the special clips.

Make sure that the drum contacts the hub flange.

7 Refit the wheel, then check the remaining rear drum.

8 Lower the vehicle to the ground, and tighten the wheel nuts to the specified torque.

Depress the brake pedal several times, in order to operate the self-adjusting mechanism and set the shoes at their normal operating position.

9 Test the brakes carefully before returning the vehicle to normal service.


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