Winch motor drive consists of universal motor heavy duty and a adapter (special part). It has bi-direction control and multi-speed. User can select speed forward/ reverse for take fixture plate form (carriage) up and down through the high mast as you should be low speed when take carriage though up the top of mast. As carriage up/down and between middle high mast you can use upper speed. But it nearly the top or ground. You must be use low speed and beware.