7.4.9 Hoisting and Lowering Limits

For safety purposes, to prevent over-running when the wire rope has reached its maximum extended or retracted position, in most cases a limit can be fitted to the wire rope or winch. In the case of manually operated winches, this is normally in the form of a simple stop. In the case of power operated winches, it is often in the form of a stop and lever operated switch, valve or slipping clutch arrangement. Such arrangements are not however normally supplied as standard and it is advised that for lifting operations they are requested from the supplier.