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
