INCORRECT ASSEMBLY 5

APPEARANCE

Dirt and/or rust on hub surface

CAUSE

Contamination on the hub surface can lead to misalignment during mounting leading to irregular contact between pad and disc surfaces and uneven wear of the disc

EFFECT

Disc Thickness Variation which leads to oscillation of the disc surface resulting in noise and vibration. The effect becomes progressively greater with use

REMEDY

Remove the disc and carefully clean the surfaces of wheel hub and disc, eliminating rust and other debris. Check that the support surface is neither distorted nor damaged. Replace discs observing manufacturer's recommended torque and sequence during tightening

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