SERVICE BRAKE AND INCHING CONTROL SYSTEM

SERVICE BRAKE AND INCHING

1-28.

CONTROL SYSTEM.

Examing the inching and brake circuits

you will note that we have two master

cylinders - the left one for left foot

inching and braking, the right one for

With neither

right foot braking only.

pedal applied, the inching valve is in

Note that there

a neutral position.

is no residual pressure from either

the right or left master cylinder to

the inching-and-brake selector valve

and wheel cylinders does have residual

pressure.

(Refer to Fig. 1-3)

The inching-and-brake selector valve,

mounted on top of the differential

housing, c o n t r o l s f l o w o f f l u i d t o t h e

wheel cylinders.

When the right master cylinder is applied

for braking, fluid under pressure flows

from the master cylinder, through the

s e l e c t o r v a l v e , and through the residual

check valve to both wheel cylinders.

(Refer to Fig. 1-2)

1-6