Question

Excessive use of the service brakes results in over heating which can lead to

a. Improper adjustment of the S-Cam
b. Increased contact between brake drums and brake linings
c. Expansion of the brake drums

Answer 1

Excessive use of the service brakes can result in overheating, causing issues such as improper adjustment of the S-Cam, increased contact between brake drums and linings, and expansion of the brake drums.

Step-by-step explanation:

Excessive use of the service brakes can result in overheating, which can lead to several potential issues:

1. Improper adjustment of the S-Cam: When the brakes overheat, the expansion of brake drum can cause the adjustment of the S-Cam to become incorrect, affecting the braking performance.
2. Increased contact between brake drums and brake linings: Overheating can lead to expansion of the brake drums and increased contact with the brake linings, resulting in excessive friction and potential damage to both components.
3. Expansion of the brake drums: The heat generated during excessive braking can cause the brake drums to expand, which can lead to issues such as warping or distortions.