Which of the following is NOT a criterion for inspecting brake linings?

Brake linings play a crucial role in the overall functionality and safety of brake systems, and various criteria are established to ensure their effectiveness during inspections. The focus of the inspection includes parameters that directly affect the performance of the brakes.

Thickness is essential because it determines how much material is available for friction. As brake linings wear down, reduced thickness can lead to diminished braking performance and could eventually cause damage to the brake shoe or rotor. Measuring their thickness during inspections is therefore a fundamental criterion.

Oil or grease saturation is also a significant concern. Contamination of the linings with oil or grease can drastically reduce their friction capabilities, leading to brake failure. Inspectors must check for signs of such saturation, as it could indicate underlying issues, such as leaks from other components.

Separation from shoes is another critical factor, as any delamination or detachment from the brake shoe can lead to severe braking issues. Inspections should ensure that the linings are securely attached to the shoes without any signs of separation, as this can compromise the entire braking system.

In contrast, rusting typically pertains more to the metal components of the braking system rather than the brake linings themselves. While rust may impact the structural integrity of parts like the brake shoe, it is not