I am relatively new to woodworking and woodturning. I have access to a Powermatic circa 1960's planer and jointer, which belonged to my grandfather. He has been deceased since the late 80's so these machines have been idle since then. Does anyone have the knowledge how to go about rebuilding these machines? I have tried the jointer and it does work, though I'm sure it needs to be tuned up. Are these machines even worth going to the trouble of rebuilding them? Any input would be appreciated.