Q: how is the guide wheel working? Answer: guide wheel parallelism is a traction sheave elevator car center point and the guide wheel of heavy center line should be with bearing beam, a guide wheel, a guide wheel positioning datum line in the vertical direction superposition, and on both sides of the guide wheel surface should be parallel with the baseline. Q: is the feature of the Guide wheel? Answer: a guide wheel, its characteristic is which is composed of a sleeve, a regulating screw, casters, a pedestal, a steering pin seat and composition, is sheathed in the sleeve with adjusting screw, regulating screw at one end of the handle is installed, on the other end of the frame connected by adjusting screw nut and the caster, castor rack and castors connection; turning seat connected with the base through a pin, base and steering seat are respectively provided with the same center distance corresponding to the holes, U-shaped pin in order to insert to turn a corresponding hole of a seat and a base, a U-shaped bolt the base is fixed on the trailer of the rectangular pipe.