Repair/troubleshooting for very old washing machine?

It is a 1980s Maytag A712, and when it goes through the wash cycle, once it gets to the rinse/spin portion the sound from the motor gets much louder like its under a heavy load, then it shuts off completely except for the the timer ticking, and will not respond for hours.  It seems like something is partially seized and it has some overload protection but I am not sure?  They actually still make a ton of parts for them so if I knew what was wrong I could probably repair it, but there is almost no information about them online because they were already old by the time putting stuff on the internet was popular.   Any ideas of what could cause that?

It doesn't have any troubleshooting information, but I found this website that has exploded parts diagrams for that washer that may help: https://www.partselect.com/Models/A712/  The Maytag website has owner's manuals available for their products, but I entered A712 in their search function and nothing turned up:  https://www.maytag.com/services/manuals.html

In reply to Tk8398 :

I'm no expert but it sounds like there's a thermal breaker on the motor circuit that's being tripped due to an increased load. I'd pull it apart & clean/lube anything related to the motor/belt/drum movement...well, don't lube the belt...and see if that helps. My hunch is that will fix it.

If not, I'd see if you can find the circuit breaker in series with the motor. Some of them can be opened & it may have burnt contacts. You should be able to find another 120vac breaker with the same amperage as yours & be able to swap it out if needed too. 

They are so simple.  Sounds like a wasted motor.  Might be able to get brushes for it or adapt other brushes into it.

I think appliance parts pros has a forum of knowledgeable people. 

Sounds like a worn bearing could be overloading the motor.  Is the schematic still under the access cover?  Try to find a wiring diagram and locate any overload protection.

I've had pretty good luck fixing appliances.  Some older, some too new to be breaking, but you know how that goes.  Parts Select is another good source of parts.

The thing I am stuck on is that it goes through the wash cycle with no problem, but seizes when it gets to the rinse cycle, which seems like it should be the exact same thing as far as a mechanical failure.  I will have to try stopping it before it gets to that point and see if it will go through the wash cycle again to rule out that it's something that happens just after running a certain amount of time and getting hot, but I don't think it is. 

Jammed drain pump will cause the overload at the end of the wash cycle too.

Im not sure where you are located, but I bought a new maytag in 1986. It still runs, but was in a lean to wash room in VA its whole life, so the humidity made the exterior look horrible. My wife will not allow it in the house, but it had been too good to me to scrap, so its setting in one of my carports here in AL. Free to good home!

The very beginning of the spin cycle is more load on the motor than any other cycle.

Moving the agitaor is easier than trying to get the big drum full of water to start moving.