Mike...you are not alone. There seems to be a problem with '02 Windsor hydraulic generator slide rams. I had the same problem that started as intermittent, then just quit. It turns out the ram locked up and this caused the pump to fail. In our case the pump was replaced under the extended warranty that we got at the time of purchase of our used Windsor. Then it was discovered that the ram was locked but had to be handled as a separate issue.....

. I think Dr4Film on this forum has the same issue. Yours is the third one I have heard of on this forum. When the shop took the old ram off, it had no identifying numbers or manufacturer. They took some measurements and ordered a new part based on that information. I'm sorry, but don't have that info. I'm thinking the mechanism was not used very much and came from Florida, so moisture may have been an issue (just guessing). As a maintenance thing I open it up once a month now just to keep things moving.
Thanks Diplomat Don for the heads up on this post.