YH4
GRAND
VITARA
[FOR VEHICLE WITHOUT ABS]
[FOR VEHICLE WITH ABS]
1. Master cylinder
2-1. 4-way joint
2-2. 2-way joint
3. LSPV (Load Sensing Proportioning Valve)
4. Rear axle housing
5. ABS actuator (H.U.)
F.R.:Front side
5-2 BRAKES
GENERAL DESCRIPTION
When the foot brake pedal is depressed, hydraulic pressure is developed in the master cylinder to actuate pistons
(two in front and four in rear).
The master cylinder is a tandem master cylinder. Brake pipes are connected to the master cylinder and they make
two independent circuits. One connects front brakes (right and left) and the other connects rear brakes (right and
left).
The load sensing proportioning valve (LSPV) is included in these circuits between the master cylinder and the rear
brake for the vehicle without ABS.
In this brake system, the disc brake type is used for the front wheel brake and a drum brake type (leading/trailing
shoes) for the rear brake.
The parking brake system is mechanical. It applies brake force to only rear wheels by means of the cable and me-
chanical linkage system. The same brake shoes are used for both parking and foot brakes.
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