Join Date: Jun 2009
Location: Kingston, PA, USA
Re: EHCS Gasket repair method?
20/50 oil blew your seal out. I haven't had one of these apart so I don't know what their using for a relief.
It blew the weakest point. In hydraulics a few things can happen with over pressure, it stalls the motor, blows a seal, splits the housing.
You need a new seal, silicone will never seal it. Even if you were able to seal that area, you will have another failure point using motor oil. Dead head a fixed displacement pump and it will fracture.
Find the original cause of no operation (I would guess you're bleeding flow past a sealing surface, the motor oils flow was restricted through the leak to build enough pressure to operate the stand until another seal failed), repair it, use hydraulic oil.