User's Manual

TRAIN CHIEF® II LRCS w/Lightweight OCU OWNER’S MANUAL

95-00-0-xxx Rev 000 3-1 Control Chief Corporation

3 PHYSICAL DESCRIPTION AND INSTALLATION

The Lightweight OCU-BTIND

Train Chief® II equipped locomotives are controlled by using one or two Lightweight OCU’s.

Each OCU is a small 3.9 lb hand operated device that gives an operator complete throttle and

braking control of the locomotive up to 2500 feet away. Control of the locomotive can be

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

OCU Control Groups

The OCU has controls for:

1. Movement commands (direction, throttle and braking)

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

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

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

OCU operational status.

Movement Controls

Figure 3-1: Lightweight OCU-BTIND 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 page 4-1).

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

page 4-1 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