What is the recommended practice for inspecting brake linings and shoes on a bus?

• A. Remove the drum or inspect from access points, measure lining thickness, check for glazing or cracks, and ensure automatic adjustment.
• B. Inspect from outside only
• C. Replace immediately
• D. Ignore glazing and cracks

Answer: (A)

Direct access to the friction surfaces is essential. You remove the drum or inspect through the proper access points, so you can actually see the lining. Then measure the lining thickness with the right tool to ensure it meets the minimum specification, and check for glazing (a shiny, hard surface from overheating) or cracks that weaken braking performance. Also confirm the automatic adjustment mechanism is working so the shoes stay properly spaced from the drum during operation. This approach catches wear or damage early and keeps braking reliable; simply inspecting from the outside misses hidden wear and damage, and glazing or cracks should not be ignored.