HYDRAULIC ACTUATORS AND RELATED COMPONENTS - Continued
STACKER MOTOR - drives the stacker sprocket and chain. The motor is hydraulically
operated and operation is reversible. Rotational direction of the motor is determined by the
STACKHI directional control valve. Rotational speed of the motor is controlled by the
setting of a flow control valve.
STACKER BRAKE - automatically applies whenever hydraulic pressure is removed from
stacker motor supply line. This brake will prevent stacker tray movement until the motor
supply line is again pressurized.