Had a problem with my PM3520B quill was hard to advance and got worse. I took it apart and cleaned and oiled and it worked better. Then yesterday could only barely get it to move so did some research at the Mustard Monster site . One solution was that there was a burr on the quill. I could not find a burr. and the quill would not go back in completely so tried to file in the slot on it and clean the opening in tailstock. Still not going in but a little farther. One last try filed the top of the slot instead of in the slot and that did the job and working better than it has in years.
Have see some comments on drilling with the tailstock so I am guessing that is what caused the burr. Thought this might help someone else.
Have see some comments on drilling with the tailstock so I am guessing that is what caused the burr. Thought this might help someone else.