Abstract: A traveling crane incorporates a self-retracting/erecting live mast or the like, pivotally mounted on the base unit and capable of moving to and from a flipped, stowed position on the opposite side of vertical from the positions of the normal operating mode. A cable and winch is provided to raise and lower the mast during the normal operating mode and to move the mast toward the stowed position. A power cylinder operates to control the mast during retraction and to erect the mast from the stowed position. A control system operates the power cylinder to controllably move the mast during retraction/erection. Flexible pendants and telescopic guide links interconnect the cylinder with the mast and the base unit. Optimum operating angles are provided. The control system includes an electrical circuit and a hydraulic circuit, the hydraulic circuit having a restricted orifice to resist movement of the mast by gravity during retraction.