Tub fill control
David,
With this machine, since under that perforated liner it is a solid tub, when it fills the Gyratator Float rises. Yes it is that silver thing in the center of the agitator (Gyratator). It is shaped like a long soda can, and is hollow, I believe it is chrome plated metal. As the float rises it hits the button in the center of the lid, which actuates a mercury switch. This starts the machine agitating, while it continues to fill until a second switch is activated (aprox. 10 seconds). This ensures a complete fill, and the water valve shuts off.
When the machine spins the water is thown through centrifugal force over and out of the tubs into a larger tub, which is pumped out in the case of an AMP (Automatic Maytag Pump). Models AM were also available which would drain into a floor drain if that is what you had.
The other interesting thing about this machine, is that I owned one before, many years ago (many) when I was in college in Berkeley. I moved into an apartment, and saw this washing machine in the back yard. I ran an extension cord to it and it seemed to work. After further testing, with a water hose conected, I moved it into the apartment. A friend helped me push it up the stairs. Later I made a hook-up for it in the bathroom.
A couple of years later, the building owner decided to tear this building down, and we were all evicted. I decided to move to San Francisco, and there was no place to hook-up a washer, so I just left it there. So part of the reason of enjoying this machine is the memories of using one for those years.
Since that time I have purchased two new Maytag washers, one in 1980 and one in 2000. So this is my 4th. Of course I had many other washers inbetween.
Martin