Drum Brake System: Testing and Inspection

Checking Drum Brake


WHEEL CYLINDER







Check operation and for leakage.


DRUM







Check condition of inner surface.


Standard diameter:................203.2 mm (8.000 inch)
Maximum inner diameter:..................204.5 mm (8.051 inch)



LINING







Measure wear and check for damage.

Standard thickness:.................4.5 mm (0.177 inch)
Minimum thickness:.........................1.5 mm (0.059 inch)