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.
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