Buick Enclave: Description and Operation
PARK BRAKE SYSTEM DESCRIPTION AND OPERATION
System Component Description
The park brake system consists of the following:
Park Brake Pedal Assembly
Receives and transfers park brake system apply input force from driver to park brake cable system.
Park Brake Release Handle Assembly
Releases applied park brake system when pulled.
Park Brake Cables
Transfers input force received from park brake pedal, through park brake cable equalizer, to park brake apply lever.
Park Brake Cable Equalizer
Evenly distributes input force to both the left and right park brake units.
Park Brake Apply Lever
Multiplies and transfers input force to park brake actuator.
Park Brake Actuator/Adjuster
Uses multiplied input force from apply lever to expand park brake shoe toward the friction surface of the drum-in-hat portion of the rear brake rotor.
Threaded park brake actuators are also used to control clearance between the park brake shoe and the friction surface of the drum-in-hat portion of the rear brake rotor.
Park Brake Shoe
Applies mechanical output force from park brake actuator to friction surface of the drum-in-hat portion of the rear brake rotor.
System Operation
Park brake apply input force is received by the park brake pedal assembly being depressed, transferred and evenly distributed, through the park brake cables and the park brake cable equalizer, to the left and right park brake apply levers. The park brake apply levers multiply and transfer the apply input force to the park brake actuators which expand the park brake shoe toward the friction surface of the drum-in-hat portion of the rear brake rotor in order to prevent the rotation of the rear tire and wheel assemblies. The park brake release handle assembly releases an applied park brake system when it is pulled rearward.
SPECIAL TOOLS AND EQUIPMENT
SPECIAL TOOLS
READ NEXT:
Propeller Shaft
SPECIFICATIONS
FASTENER TIGHTENING SPECIFICATIONS
Fastener Tightening Specifications
ADHESIVES, FLUIDS, LUBRICANTS AND SEALERS
Adhesives, Fluids, Lubricants and Sealers
DIAGNOSTIC INFORMATION AND PR
SEE MORE:
Customer Satisfaction Procedure (U.S. and Canada)
Your satisfaction and goodwill are important to your dealer and to Buick. Normally,
any concerns with the sales transaction or the operation of the vehicle will be
resolved by your dealer's sales or service departments. Sometimes, however, despite
the best intentions of all concerned, misu
Scheduling Service Appointments (U.S. and Canada)
When the vehicle requires warranty service, contact your dealer and request an
appointment. By scheduling a service appointment and advising the service consultant
of your transportation needs, your dealer can help minimize your inconvenience.
If the vehicle cannot be scheduled into the service
