Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

Disc Brake System: Description and Operation

The caliper assembly consists of a pin slider caliper housing, inner and outer pad and lining assemblies and a single piston. The caliper slides on two pins which also act as attaching bolts between the caliper and caliper bracket. The inner and outer pad and lining assemblies are attached to the caliper bracket by pad retainers. A wear indicator is attached to the inner pad and emits a noise when the lining is worn to a point when replacement is necessary.