Servicing a brake drum with hard spots that are causing chatter and brake pull is being discussed. Technician A says he can grind off the hard spots. Technician B says the drum must be replaced. Who is correct?
A)A only
B)B only
C)both A and B
D)neither A nor B

Question

Quizplus · Accepted Answer

Technician B is correct because grinding off hard spots on a brake drum can compromise the structural integrity of the drum, making it unsafe. The proper solution for a brake drum with hard spots causing chatter and brake pull is replacement.

Servicing a Brake Drum with Hard Spots That Are Causing