Page 795 - Workshop Manual - Aumark (BJ1051)

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Rear axle- rear wheel brake
9. Inspect brake drum
(a). Inspect the inner diameter working
surface of the brake drum for any cracks.
If the brake drum appears grooves or
furrows due to the damage, repair or
replace it, if it appears tiny furrows or
slight abrasion, it can be used again after
repairing.

(b). Measure the inner diameter of the brake
drum as shown in the illustration. The
dimensions of the brake drums on both
sides of the same axle shall be the same,
repair or replace them if necessary.

(c). Measure the roundness error (radial
circular run-out) of brake drums as
Dial indicator shown in the illustration, repair or
replace them if necessary.

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