PARKING BRAKE SYSTEM OPERATION

TM 9-2320-280-20-1 1-26. PARKING BRAKE SYSTEM OPERATION The parking brake system for vehicles with serial numbers 1 through 44824 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 service brake system failure. Major components of the parking brake system are: PARKING BRAKE ROTOR - Attached to pinion flange on rear differential, rotor prevents pinion flange from turning when parking brake is applied. BRAKE PADS - Apply friction to rotor when hand lever is applied. PARKING BRAKE CALIPER - Forces brake pads against rotor when hand lever is applied. PARKING BRAKE CABLE - Connects brake caliper to parking brake rod at bracket on left frame rail. PARKING BRAKE ROD - Connects parking brake hand lever to parking brake cable by means of a adjustable clevis. 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. 1-45