I have a newly acquired completely rebuilt older Lagun vertical knee mill with variable speed head. The variable speed has gone awry and the rebuilder says it is due to the newness of the bearings and probably needs some more lube. I removed the top plate and poured oil down the shaft and bearings areas as he recommended. The tilter did start to move some, but the speed adjustment chain mechanism is not working correctly. It changes the speed only slightly. Also, upon start up there is a high pitched screeching in the upper head area. Sounds very scary, like a bearing.
Anyone know how to reset that silly little chain and sprocket?