SERVICE/PARKING BRAKE SYSTEM OPERATION

TM 9-2320-280-20-1 1-27. SERVICE/PARKING BRAKE SYSTEM OPERATION The parking brake system is a mechanically-actuated system that provides a means of keeping the vehicle still once it stops. It also assists in emergency stopping if there is a complete service brake system failure. Major components of the parking brake system are: PARKING BRAKE ROTORS - Attached to output flanges on rear differential, rotors prevents output flanges from turning when parking brake is applied. BRAKE PADS – Apply friction to rotors when hand lever is applied. PARKING BRAKE CALIPERS - Forces brake pads against rotors when hand lever is applied. PARKING BRAKE CABLES - Connects parking brake hand lever to equalizer bar. EQUALIZER BAR - Evenly distributes braking pressure to the rear brake rotors. PARKING BRAKE ROD - Connects parking brake hand lever to equalizer bar. PARKING BRAKE HAND LEVER - Permits operator to engage the parking brake. PARKING BRAKE HAND LEVER ADJUSTING CAP - Permits operator to make minor tension adjustment of parking brake. 1-46