Think it can be saved?

[amertrac]

I've got a 10 inch Diamond Caulk that I've been fussing with from time to time for months.   Just made some progress last week.  The big problem is with the bolt that makes the axle for the adjuster.  A little more heat and a stronger screw driver and it might get returned to service.
Tke a small piece of plastic 1/4 thick set in on your vise, rr track or anvil.use a heavy plastic hamer. set the wrench knurled cylnder on the plastic and give it a whack. then try to turn . another whack might help. then turn the wheel until it stops . repeat the process f turning the wheel back and forth until it is free soaking it with any rust solvent each time.THIS IS MESSY BUT IT WORKS   
bob w,

[Branson]

Thank you Bob!  I never thought of that!  Maybe I'll try that today.