Pincher
Yup Mike, that's all it does. I think there were 2 reasons for this actually and one I think being a symptom of the other. The way this drain pump is setup, the spinner side is always open, no matter what. With the old pumps with the switching valve in the top, the plungers could get stuck or the user could simply misuse the machine and cause water to be trapped in the spinner while it is trying to run, possibly damaging the machine. This design eliminates that possibility completely.
The "effect" of the new design is that there is always an air leak in the pump. When you are trying to drain the wash tub, the pump is also sucking in air from an empty spinner, so it slows down the output by quite a bit in the draining process. It takes one of these Hoovers about 3 minutes roughly to drain a wash tub. My 0510 and 0512 (older pump design) can do this in less than half the time. This slow draining also serves a purpose as well I believe though. Since these machines were never marketed as a "family" washer like there, they were mostly relegated to apartment dwellers or people with no machine hookups. As so, many of these machines ended up being used anywhere there was space like say a bathroom or other shallow sink. The reduced drain flow meant that a much smaller capacity sink could be used to drain off the machine without the hose flying out or over-running. That's my theory anyhow, but it makes sense. The question is which was the reason they did it?
The newer pump uses the same base piece as the older pumps though, but if you think about it, they run almost twice as much as the older machines as the drain time is over twice as long. It is very rare that I find one of these Hoovers with a good pump in them. If I find one with a working pump, I will take it apart and use some light machine oil on the pump shaft and lube it up again, it seems to prolong things, but o-rings for the housing are also scarce.
Thanks
-Tim
www.automaticwasher.org
