Ranger 2WD V6-245 4.0L (1990)
Brake Caliper: Description and Operation
Caliper Assembly
Brake Caliper
The caliper assembly consists of a pin slider caliper housing, inner and outer pad and lining assemblies, and a single piston. The caliper assembly slides
on two pins which also attach the caliper to the spindle.
The caliper housing contains a piston. The piston has a molded rubber dust boot on its outer end that is pressed into a cylinder bore groove to prevent
cylinder contamination. There is also a rectangular section rubber piston seal located in the cylinder bore providing sealing between the cylinder and
piston. This seal also causes the piston to retract once the brakes are released.