Powermatic model 50 jointer

[Bill Dufour]

I like Dupont chainsaver lube. Goes on wet like wd40 evaporates to leave wax behind. Use no silicone. Any silicone left behind will rub off onto wood and cause fisheye in finishes and glue problems.
I would spray wd40 on the moving bits and crank it up down a few times before taking it all the way apart. If you are lucky that may cure it.
Bill D

[Rob Sack]

You might want to pick up a can of Kroil. It's probably the best penetrating lube I have ever used. Keep in mind that while it has some lubricating properties, WD 40 is primarily a water displacement product. In fact the name is based on its primary function and the number of attempts that were made to develop the formula. WD (water displacement) 40 (fortieth formula) developed that met the chemists requirements.

[Steve Jenkins]

Big second for Kroil. If you’ve never used it you’re missing out on the penetrating oil.

[Alan Truelove]

Yes I have used kroil penetrating oil. We use it at work. It’s not cheap but does work well.

[Cameron Wood]

There's not much you can screw up. To true the tables after cleaning up, if necessary, slipping pieces of feeler gauge shims into the ways of the outfeed table works well. Because it is rarely moved, it's better to shim it than the infeed table.