Hello I have a 910a 2010 model. The right hydro is leaking from the seal that the pulley for the drive belt is on. I checked on the part and the seal is cheap. Has anyone replaced this themselves? Is this a common problem? I have just under 600 hours on the machine. About 7 hours ago I purchased the mower and noticed it leaked almost the entire reservoir. My local dealer couldn’t give me a time or cost to replace it just said $82 an hour. I am really mechanically inclined just wanted to get ny tips or tricks to make it go smoother.