Abstract
Many customers request the replacement of an installed hydraulic elevator with a rope traction-type elevator. However, since a conventional renewal type elevator requires a long work period and incurs high costs, the renewal market for hydraulic elevators is not expanding. We have developed a renewal product of its latest machine-room-less elevator that is environmentally friendly, saves energy, and provides a comfortable ride. And shortened work period and low cost have been achieved by using the existing hall parts, car, rail, etc. The renewal product eliminates hydraulic operating fluid. Further more it reduces power consumption, switching parts, etc. We show the techniques of the replacement of an installed hydraulic elevator with a rope traction-type elevator in this paper.
