Master Cylinder Assembly Construction; Booster Assembly Construction - Suzuki Grand Vitara 2011 Manual

Master Cylinder Assembly Construction

The master cylinder has two pistons, two pressure seal (3) and two separating seal (4). Its hydraulic pressure is
produced in the primary (A in the figure) and secondary (B) chambers. The hydraulic pressure produced in the primary
chamber (A) acts on the front right and rear left brakes.
Also, the hydraulic pressure produced in the secondary chamber (B) acts on the front left and rear right brakes.
WARNING
!
Brake master cylinder cannot be disassembled. When anything faulty is found in it, it must be replaced
as an assembly.
CAUTION
!
Brake master cylinder cannot be disassembled in principle. Should primary piston (1) have come off
from cylinder while dismounting or handling it, wash it in the same specified fluid as that in reservoir
and place it back in cylinder.
2. Secondary piston
5. Primary piston return spring

Booster Assembly Construction

The booster is located between the master cylinder and the brake pedal. It is so designed that the force created when
the brake pedal is depressed is mechanically increased combined with the engine vacuum.
CAUTION
!
• Never disassemble brake booster assembly. If it is found faulty, replace it with new assembly.
• The torque values specified are for dry, unlubricated fasteners. If any hydraulic component is
removed or brake line disconnected, bleed the brake system.
6. Secondary piston return spring
7. Grommet
Brake Control System and Diagnosis:
8. O-ring
9. Master cylinder body
4A-4
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I5JB0A410004-01
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