TM-9-2320-280-20-1
TRUCK, UTILITY: M998 SERIES
TECHNICAL MANUAL; UNIT MAINTENANCE; VOLUME 1 OF 3
JANUARY 1996
TM-9-2320-280-20-1 - Page 78 of 888
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
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