Question

In a floating type caliper disc brake unit, which pad is applied first?

a) Inner pad
b) Outer pad
c) Both pads simultaneously
d) The order varies

Answer 1

In a floating type caliper disc brake, the inner pad is typically applied first due to hydraulic pressure acting on the caliper piston, which then causes the caliper to float and apply the outer pad.

Step-by-step explanation:

In a floating type caliper disc brake unit, the pads are applied in a specific order. When the brakes are applied, the hydraulic pressure pushes the caliper piston outward, which in turn applies the inner pad against the brake disc. As the caliper floats on its mounts, it moves slightly causing the outer part of the caliper to apply pressure to the outer pad. This action ensures that both pads are applied to the brake disc, though the inner pad typically makes contact first.