TOPIC 1. BRAKES

TM 10-3930-644-14&P

BRAKE SYSTEM

TOPIC 1. BRAKES

A. DESCRIPTION

The tops of the brake shoes move freely in a brake wear

plate while the bottoms of the shoes transfer movement

The hydraulic brakes are the type referred to as "semi-

from the hydraulic wheel cylinders. (See Figure 1.)

floating, self-centering," and are specially designed for

lift truck applications.

The hydraulic brake system

No manual adjustment of the brake shoes is required as

consists of a mechanically activated hydraulic master

the system incorporates self adjusting brakes through

cylinder with heavy duty brake lines transmitting

use of a friction operated link assembly in each wheel.

hydraulic pressure to brake wheel cylinders located

(See Figure 2.) The friction In the link assembly is great

between the brake shoes of each drive wheel. The

enough to prevent the shoe return springs from

double ended wheel cylinders have links extending from

collapsing the link, but not great enough to prevent the

each side of the cylinder which transmit the movement

brake pedal pressure from expanding it. The Link

from the wheel cylinders to the brake shoes.

assemblies are

Figure 1. Hydraulic Brake System

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