Well I finally got the cap off......had to hold the cap while it was spinning, which caused it to melt the caps inside, and pop off, yeah it must have broke free from the bolt, which was really stuck on there.....I will probably epoxy it back together, and grease the bolt before I put it back on.....
I can't seem to locate an exact date on these....but I am probably guessing from the 80's...maybe 85.......I know the Marathon series was out then, and these are close to it......suprising that there was not a stainless tub....
TWINS....that was one reason I got them...a matched pair....which gets to be a little rare these days......
Raytheon never did the 210 arc........my solid tubs are, and so are the new ones by Alliance.....I wasn't sure about it, until I marked the caps, and then measured the stroke
Kudos to our DanManTN for making a video/link for us....he did one better with 2 color dots to see what how the agitator is doing a complete circle