I am very grateful that Dave got down to visit. We managed to find new casters (though not locking ones) for the wringer. I was paranoid to use the wringer, I didn't want to run it with the possibility of salt water in the oil. Thanks so much everyone for telling us how to check for it. Dave was a great help in getting it working.
Also the 1980 Maytag set is so much nicer than the latter Whirlpools that they replaced. Much better quality. The only thing is it drains so quick it makes every drain in the house gurgle and bubbles come up through the toilet!!! Remind me not to use it while washing!