Glossary “brake pedal reserve” Definition:
Pedal travel distance before the brakes begin to apply.

Glossary “brake power assist” Definition:
A device installed in a hydraulic brake system that reduces pedal effort and affords better braking.

Glossary “brake pull” Definition:
When a vehicle pulls to one side when the brakes are applied during a stop.

Glossary “brake line” Definition:
Small-diameter, rigid-steel tubing, or flexible, rubber, reinforced hose, used to transmit brake fluid from the master cylinder to the wheel cylinders or calipers when the brakes are applied.

Glossary “brake lining” Definition:
A special friction material that will withstand high temperature and pressure, used for lining the brake shoes or pads, either by riveting or bonding.

Glossary “brake lining pad” Definition:
The friction lining and plate assembly that is forced against the rotor to cause braking action in a disc brake.

Glossary “brake machining” Definition:
A procedure of turning a drum or a rotor on special lathe to remove surface imperfections such as scoring, and to eliminate runout and other dimensional problems.

Glossary “brake mean effective pressure” Definition:
The average effective pressure in an engine’s cylinders at a specific brake horsepower and speed.

Glossary “brake moan” Definition:
A low pich noise that is felt in the floor and/or the steering wheel during light brake application.. Common vehicle speed range between 8 and 40 mph.

Glossary “brake lights” Definition:
Red lamps at the rear of the vehicle that illuminate when the brakes are applied.

Glossary “brake horsepower (bhp)” Definition:
A measurement of horsepower delivered at the engine crankshaft. A pony brake or an engine dynamometer is used to determine brake horsepower.

Glossary “brake hose” Definition:
A flexible tubular conduit for the transmission of fluid pressure in the brake system. Designed to allow for suspension travel.

Glossary “brake light switch” Definition:
An electrical switch, operated either mechanically or hydraulically when the brakes are applied, that causes the brake lights to light up.

Glossary “brake feel” Definition:
A term relating to the driver’s ability to determine the amount of braking force exerted or required during a stop.

Glossary “brake fluid” Definition:
A specially formulated liquid used to transmit brake pedal pressure from the master cylinder to the wheel cylinders. The proper type of fluid must be used in the system that it was designed for.

Glossary “brake flushing” Definition:
The removal of fluid from a brake system, washing out sediment by flushing with denatured alcohol or clean brake fluid, and refilling the system with fresh brake fluid.

Glossary “brake grab” Definition:
The sudden increase in the braking of a wheel, often caused by a contaminated lining due to a leaking wheel cylinder, or worn of binding components .

Glossary “brake hop” Definition:
Condition that occurs when the swing-arm length of the rear suspension is too short, causing the rear wheels to repeatedly leave the ground during braking.

Glossary “brake drag” Definition:
A light, but constant, contact of the brake shoes or pads with the drum or rotor, resulting in early failure due to excessive heat.

Glossary “brake drum” Definition:
The cylinder part that rotates with the wheel and surrounds the brake shoes.