TM 5-6675-328-14
5-3.5 Controller. An electronic control unit which controls operation of the lathe and accessories. It consists of:
DIRECTION CONTROL SWITCH. A three position switch allowing forward, stop, and reverse control. When switched to
STOP, dynamic braking stops the motor.
COOLANT PUMP INDICATOR. Indicates coolant pump operation (where applicable).
MANUAL/FOOT SWITCH. Allows motor to be controlled manually or remotely through a foot switch.
MOTOR SPEED CONTROL. Rheostat which controls drive motor speed.
INDICATOR LIGHT. Indicates that CIRCUIT BREAKER is on.
CIRCUIT BREAKER. Protects the electrical system from short circuits or power over-loads. Resets manually.
PUMP SWITCH. Controls operation of coolant pump (where applicable).
5-3.6 Drive Motor. A 130 V dc permanent magnet, variable-speed, reversible motor with dynamic braking. It provides
rotary power to drive the headstock spindle through a pulley-and-belt arrangement.
5-3.7 Compound Slide Rest. Holds various tools for turning operations. Micrometer adjustments allow precise
positioning of cutter tools in both the longitudinal and cross-feed directions.
5-5
