THis gives me some place to start. I need to get a manual of some kind.
Manuals are in the downloads section of this site.There are several sites that have the manuals in pdf format for free, google it. Does your return spring work at all?
I know this is a old post but I have this same problem on a jet BP clone. If the nuts are too tight will just loosening them up and re-torqueing in the correct fashion fix this?Very common problem on a Bridgeport, the nuts for swiveling the head are only supposed to be torqued to 25 ft lbs first and then 50 ft lbs. using a diagonal pattern. Over torqueing will distort the casting and cause the quill to be tight.
I checked the bolt torques, they weren't over tightened, didn't make a difference.You could try loosening and retorquing the swivel lock bolts, it might work. Check the quill travel with the bolts loose.
I have been through this a few times, these are the problems that I have found.
Don't try to adjust the quill return spring until you get the stiff quill issue fixed. You will snap the end off of of the spring if you get it too tight. It should be adjusted to just barely return the quill to the top when everything is free.
Check your quill lock, make sure the clamps are free to move in the bore. With the quill extended, look for gauling in the area the the clamps contact the quill. Then oil the he!! out of the quill with light oil, Marvel Mystery Oil or sewing machine oil works well for this. If that frees it up then oil with something heavier. To get a lot of oil in there, you can pull the power down feed engage lever out of the head. Just two socket head cap screws to remove and it pulls out. Much faster than oiling by the oil cup on the right rear. The oil goes to the same place.
Also check that the nut on the bottom of the quill does not have a burr on it. That can score the bore a bit, right at the bottom and cause tightness. If all else fails, then drop the quill out and inspect it and the bore for burrs.
Nope, that's how the spindle comes out after you remove the quill. No need to loosen the nut. The quill does come out the bottom.I don't know how the quill is removed. It looks like a threaded collar is on the bottom of the quill. There are two holes on the underside, maybe for a spanner type of wrench but with two pins?
Thanks for the help Jim.
I think so. But that never stopped me, but then again I'm half crazy anyway. It's not that big of a deal to get things lined up. You can feel it when it's right.2) Head to lower portion is not aligned correctly. Aren't these the boltsthat BP says to never loosen?