Brake Master Cylinder: Description and Operation

Brake Master Cylinder
The brake master cylinder is a dual piston type. The master cylinder operates as follows:
When the brake pedal is applied, pressure is applied by mechanical linkage to the primary and secondary systems.
Brake master cylinder pistons apply hydraulic pressure to the two circuits.
The master cylinder consists of the following components:
Primary and secondary pistons.
Brake master cylinder fluid reservoir with integral fluid level warning indicator.