I picked up a j-head that has been stored for several years. I cleaned it lubed it and ran it unloaded both in hi and lo everything was good nice and quite. I used it to drill a number 21 hole in a handle I was in high and the lowest speed step something kinda dragged for a second and the head got noisey. Low was pretty quite until I sped it up. the other thing I noticed is the bearing at the very top gets pretty warm I saw 140 F with the thermal scan after about twenty minutes running. I see no other heat issues and the spindle turns free when in neutral. Also this machine was stored with the head up side down. Is there a source for disassembly instructions on this machine. Also should the step pulley move up and down when shifting gears.