MASTER CYLINDER CONSTRUCTION/OPERATION

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• The master cylinder is a dual-piston type. The master cylinder operates as follows:

― When the brake pedal is depressed, pressure is applied by mechanical linkage to the primary and secondary pistons.

― Brake master cylinder pistons apply hydraulic pressure to the two hydraulic circuits.

• The master cylinder consists of the following parts:

― Reservoir tank

― Master cylinder body

― Primary piston

― Secondary piston

― Snap ring

• Whenever the brake master cylinder is removed from the power brake unit, new nuts must be installed.