Variable speed problem

mercredi 2 juillet 2014

Have an old Woodfast lathe that has variable speed that you engage by turning the motor on and tilting (pulling towards you) the lever then you hear a click of it engaging then turn to adjust the speed of the lathe.



I was showing someone this last night after i had moved the lathe. I dont know for sure if someone or something has moved the lever while the machine was turned off or not but now when i turn it back on and attempt to change the speed it only spins at rhe slowest speed it last spun at and when i try to speed it up the pully actually dis engages and the motor still runs but the head stock stops spinning as there is no trackion from the pully cones.



It seems that the pulley cones have been put into the wrong position while the lathe is turned off and then now its turned back on its not applying the correct pressure on the belt to increase the speed.



i found another guy online that had a similar issue but he said he fixed it by cleaning the dust out fo the head unit so the variable speed lever would move more freely. im not convinced this would be the same solution for mine but am willing to give it a shot and clean it out.



Has anyone experienced any variable speed issues on older lathes? It is mechanical variable speed based on a spring tension and cones that move in and out pinching and relaxing on the pully to increase/decrease the speed.



Any help would be much appreciated. This has only happen once before on the lathe and before i was going to ask the question on here i corrected it by moving the lever around and fiddling around with it then it come good. and has been running perfectly since then. Funny enough that occured when i purchased it and moved it so the lever could have moved while turned off back then also. Sounds like the same issue has occured again im just not 100% of what is occuring to make it happen and what i did to fix it.



Thanks

Nathan




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