MSG Equipment explains caliper types, the warning signs of a faulty caliper and why calipers wear out under harsh operating conditions.
MSG Equipment’s article classifies calipers, part of the disc brake mechanism, as fixed or floating, single- or multi-piston, and front-axle or rear-axle units with a parking brake mechanism.
Signs of a faulty caliper include:
- the car pulling to one side because a front caliper is jammed,
- a burning smell from pads rubbing when a rear piston sticks,
- knocking from the wheel area over bumps,
- uneven pad wear on one axle and brake fluid spots near a wheel.
Because calipers face high temperatures, dirt, moisture and road chemicals, the article stresses regular inspection and repairs verified on dedicated test equipment.