PROCEDURES

BRAKES

The spring is placed between the cups. Consequently,

each of the cups is held in constant contact with its

mating piston. The cups and pistons are assembled in

the cylinder bore so that the lips of the cups face each

other. The flat side of each cup contacts the flat side of

the mating piston leaving the opposite end of the pistons

(which are recessed) facing the open ends of the

cylinder.

The purpose of the boots is to prevent foreign materials

entering into the open ends of the cylinder. A boot is

slipped over each end of the cylinder, forming a seal

against foreign elements, A seal is also formed around

Figure 14 deleted.

the piston to the brake shoe link. It is important that

these boots be inspected at every opportunity and

replaced whenever any defect is noticed.

Pressure formed in the master cylinder is transferred

from the master cylinder through the hydraulic lines to

Figure 14.

the wheel cylinder bore. The cups are forced apart by

the pressure and this motion is carried to the brake

shoes through the connecting links.

BLEEDING THE SYSTEM

B. PROCEDURES

A. GENERAL

1. Removal: Refer to

Brake

Shoe

Removal

Bleeding the system means removing air from the

Section.

system.

2. Cleaning and Inspection:

Refer

to Master

When a brake line is disconnected from and then

Cylinder, Cleaning and Inspection.

reconnected to an individual cylinder, only that cylinder

need be bled. Most of the time the foregoing is true for

SELF-ADJUSTERS

the master cylinder also.

NOTE: Always check master cylinder fluid level before

starting the bleeding process. If a pressure bleeder or

Text deleted. This model not equipped

master cylinder filler is not available, keep a close check

with self-adjusters.

on the fluid level in the master cylinder during bleeding,

otherwise, fluid level may become too low and allow air

to enter the system.

CAUTION: Do not mix two brands of brake fluid unless

they are known to be compatible. Use specified fluid

only.

B-136