User Manual

TRAIN CHIEF® II LRCS W/ Lightweight OCU-BT – OPERATORS MANUAL

95-00-0-062, Rev 08 3-1 Control Chief Corporation

3 PHYSICAL DESCRIPTION AND INSTALLATION

3.1 The Lightweight OCU-BT

Train Chief® II equipped locomotives are controlled by using one or two Lightweight

OCU’s (Operator Control Unit). Each OCU is a small 3.9 lb hand operated device that

gives an operator complete speed and braking control of the locomotive up to

approximately ½ mile away. Control of the locomotive can be passed between two

OCU’s when the optional Selective Dual Control feature is installed.

3.2 OCU Control Groups

The OCU has controls for:

1. Movement commands (direction, throttle and braking)

2. Miscellaneous locomotive commands (bell, horn, and sand)

3. OCU operations (power, reset, status, pitch, time, tilt)

It also has visual and audio signals indicating the status of commands to the

locomotive and OCU operational status.

3.2.1 Movement Controls

Figure 3-1: Lightweight OCU-BT Movement Controls

Reverser (Directional) Selector:

This 3-position switch selects locomotive movement

direction as Forward, Reverse, or Neutral.

Note: Train Chief® II does not allow you to change the direction of movement

while the locomotive is in motion. If attempted, Train Chief® II will

automatically stop the locomotive by commanding a Full-Application

Locomotive Stop (see section 4.1).

EMERGENCY Mushroom Switch: Push in to activate an Emergency Locomotive Stop.

See section 4.5.10 for E-Stop actions. For normal operations the EMERGENCY

switch must be pulled out.

Note: E-Stop develops high brake cylinder pressures that increase the chance

of sliding wheels. Only use the EMERGENCY mushroom switch when

absolutely necessary.

Throttle

Selecto

Reverser

Selector

Independent

Brakes

(Locomotive)

Automatic

Brakes

(Train)

EMERGENCY

Mushroom

Switch