What should happen to the S-cam bushings to promote even wear?

To promote even wear on S-cam bushings, turning them 180º is beneficial because it allows for a fresh wear surface to be exposed. S-cam bushings are subject to wear due to the constant movement and friction they endure as the brakes are applied. By rotating them, you can distribute the wear more evenly across the bushing surface rather than allowing one side to wear down faster than the other. This practice extends the lifespan of the bushings and enhances the overall performance and efficiency of the braking system.

While other maintenance practices such as regular lubrication, thorough inspections, and complete replacements are important for the overall health of the braking system, they do not specifically address the immediate goal of even wear in the same direct manner as rotating the bushings. Proper lubrication can reduce wear but does not assist in redistributing existing wear patterns that may have already developed. Therefore, turning the bushings serves as a more proactive solution to ensure long-term performance.