College

Technician A says that brake drums should never be machined beyond the maximum diameter designated on the drum.

Technician B says that a brake drum with more than 0.005 inch out-of-roundness should be machined true on a lathe.

Who is right?

Answer :

Final answer:

Technician A highlights the importance of adhering to drum diameter limits, while Technician B focuses on the machining of brake drums. Both technicians are correct in their statements.

Explanation:

Technician A is correct that brake drums should never be machined beyond the maximum diameter designated on the drum, as exceeding this limit can compromise safety and performance.

Technician B is also correct that a brake drum with more than 0.005 inch out-of-roundness should be machined true on a lathe to ensure proper functioning of the braking system.

Therefore, both technicians are correct in their statements as they address different aspects of brake drum maintenance and machining processes.