I have a '44 SC that had the right brake lock up. We took it apart & found a broken spring. When we went to put in back together, the adjuster wouldn't move-even w/generous application of heat from a gas welder. Nephew suggested that I put it into the "cooker" that I had rigged up using Baggsy-Wy suggestion to use a battery charger/electrolysis method to remove rust. I'd cleaned a couple of carbs & removed rust from some wrenches w/great results, so we figured it was worth a try.
Mixed up a fresh batch of solution w/washing soda, put the brake adjuster in for about 24 hrs. Took a steel brush to it, washed it off w/clean H2O, let it dry & applied a fresh layer of PB Blaster. Let it set for about an hour. Put a 3/4" bolt through the center hole, clamped the flange in the vice & put impact wrench on the nut for the 3/4" bolt & proceeded to tighten the nut. As soon as the nut got tight, the adjuster turned loose. (The use of the impact may have been "overkill", as it spun freely on the flange w/first rattle.) Thanks for the info, Baggsy!
BTW Baggsy, how's the cross-motor project coming & how are Baby Baggsy & mom doing?
Additional info on the spring-we thought we might have a tough time finding suitable brake springs, but I went to my local True Value hardware store to look through their selection of springs & found the same tension spring, except it had 2X as many coils as we needed. (That was easily remided w/chisel-made two out of one.) Cost was only $1.05 for each long spring. I told them that I'd bet they didn't have a clue that they were an antique tractor parts store. They didn't.
I just love it when a plan comes together! (My $0.02 worth. jal-SD)