David:
As somebody else mentioned today, it doesn't hurt to read all the other topics on the forum when you get a chance. There just happens to be a thread in the CCC and MTD Machines & Equipment section (actually updated today !) about 582D Hydro problems. I know you aren't talking 'bout a 582, but if you read that thread, you'll see quite a bit of good info, including the name of a guy that spends his day troubleshooting them....
Yea Right!
Naw there was an 8:22am post on the front page by some guy named Brian ... but it wasn't on this page, I reloaded and the front still had it but it wasn't here