View attachment 523487
That looks possible, thank you! See attached photo of where it has to go. I'll go back to the dealers and see if he can find something similar.
I think you need to step back a bit if I understand your situation.
The photo of the flange with two bolt holes you posted, is connected to the pump by bolting to another flat surface on the hydraulic pump.
Is this correct?
The last time I dealt with a similar connection was on a large road grader.
What I found was that the two surfaces, the pump one and the flange one were no longer flat.
The flange, like the one on your knee, was bowed so where the bolt holes are, the flange and pump body touched when the bolts were tight but the flange was bowed and the other two corners of the flange, where there are no bolt holes, did not mate to the pump surface. This bowing did not support the seal and it was constantly blowing out.
This grader situation was a sort of emergency one so I carefully used a fine flat file to make the surface flat again.
A piece of thick glass with a sheet of emery paper on it would provide a better flat surface where you could rub your flange back and forth until the entire flange surface was polished and flat.
I think if your try the glass and emery paper technique you will see immediately that the surface is not flat and there will be areas of the flange which are not being polished.
Continue polishing and the high spots will be worn down and eventually the face will be flat. A machinist could do an even better job.
I doubt from the photo, an O ring is the proper seal for the joint. Your local hydraulic shop may have square edged circular seals that just fit in the flange groove.
Dave
M7040
