5.1.2 MASTER CYLINDER
The master cylinder is installed on the bracket of the brake pedal unit as shown in Figure 5.3.
Built in the master cylinder are a check valve, spring and piston. They are kept in position by a
snap ring.
The primary and secondary cups installed on the piston slide inside the cylinder when brake
pedal is operated.
The check valve is operated so that the proper pressure remains in the wheel cylinder and brake
pipe. This pressure keeps pushing the piston cup of each wheel cylinder so as to prevent oil leakage
and also prevent vapor locking from occurring.
Fig. 5.3 Master Cylinder
YOKE
SNAP RING
from RESERVE TANK
BLEEDER PLUG
CHECK
VALVE
LOCK NUT
BOOT
PUSH ROD
SECONDARY CUP
PISTON
PRIMARY CUP
SPRING
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