Chevrolet Trax: Hydraulic brake system description and operation
System Component Description
The hydraulic brake system consists of the following:
Hydraulic Brake Master Cylinder Reservoir
Contains a supply of brake fluid for the hydraulic brake system.
Hydraulic Brake Master Cylinder
Converts mechanical input force into hydraulic output pressure.
Hydraulic output pressure is distributed from the master cylinder through two hydraulic circuits, supplying diagonally-opposed wheel apply circuits.
Hydraulic Brake Pressure Balance Control System
Regulates brake fluid pressure delivered to hydraulic brake wheel circuits, in order to control the distribution of braking force. Pressure balance control on non-ABS equipped vehicles, is achieved through a proportioning valve assembly. Pressure balance control on ABS equipped vehicles, is achieved through electronic brake distribution (EBD), which is a function of the ABS modulator.
Hydraulic Brake Pipes and Flexible Brake Hoses
Carries brake fluid to and from hydraulic brake system components.
Hydraulic Brake Wheel Apply Components
Converts hydraulic input pressure into mechanical output force.
System Operation
Mechanical force is converted into hydraulic pressure by the master cylinder, regulated to meet braking system demands by the pressure balance control system, and delivered to the hydraulic brake wheel circuits by the pipes and flexible hoses. The wheel apply components then convert the hydraulic pressure back into mechanical force which presses brake linings against rotating brake system components.
SPECIAL TOOLS AND EQUIPMENT
SPECIAL TOOLS
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NOTE: Review the system operation in order to familia
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Removal Procedure
Open hood.
Place a drain pan below the vehicle.
CAUTION: To prevent damage to oil filter cap ensure proper tool is
used. Do not
use an open end wrench which may cause damage to filter cap.
Using a 24mm socket or closed end wrench loosen oil filter cap. Unscrew
filter cap 3
Power brake booster vacuum hose replacement
Removal Procedure
With the engine OFF, apply and release the brake pedal several times to
deplete the power vacuum brake
booster vacuum reserve.
Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle
.
Fig. 173: Power Brake Booster Vacuum Hose Quick Connect
Through the
