A-FRAME

PROPEL MACHINERY

The propel machinery is driven by two AC motors, each horizontally mounted to the crawler frames. Each motor is coupled to a right-angled planetary gearcase high up off the pit floor for protection from water and rock damage. One spring-set, air-released, disc brake is mounted to each of the two motors. The dual planetary configuration with separate drive motors permits straight ahead or reverse propel as well as counter rotation steering.