Winch mainly used for coal, suspension hanging plate, pumps, pipes, grouting pipe, duct and other tunneling equipment metal ore and non-metallic mineral Vertical Shaft excavation. It can substitute for ground building construction winches for lifting and handling the role. Winch line suspension device according to wellbore excavation work system design it only applies to short-term work system is not suitable for long-term use of the hoist operation. Must be checked and adjusted winch installed. Check the flexible coupling concentricity two axes: its offset shall not more than 0.16 mm 25 tons sinking winch, twisting slope not greater than 40. Check float coupling concentricity two axes: it can not be more than 1 mm offset 25 tons sinking winch manufacturer, twisting slope of not greater than 30. Inspection of each transmission system is flexible and reliable brake, and adjust so unbraking the total gap in the horizontal direction is not greater than 1 mm, the contact area of ??the brake band brake and brake drum is not less than 70%.