Page 17
AIR EQUIPMENT
AIR BRAKE EQUIPMENT
The Schedule PS-68 brake equipment, arranged for single-end multiple-unit operation, is used on this locomotive. The principal parts are :

Figure 4. -- No. 68 motorman's brake valve
NO. 68 MOTORMAN'S BRAKE VALVE
(See Figs. 1 and 4)
This brake valve controls electrical trainline circuits for initiating electro-pneumatic applications and releases. It also controls the development of equalizing reservoir pressure for piloting the development of brake pipe pressure for automatic pneumatic brake applications. The electro-pneumatic drum on the controller opens and closes electric contacts to trainline circuits to provide electric automatic brake instantaneously and simultaneously throughout the train. The handle positions of this brake valve are as follows :
ON TO PAGE 18
BACK TO PAGE
16
BACK TO TABLE
of CONTENTS