MM ZB Hydraulic Question

[steddy]

FIL having issue with crank case filling with hydraulic oil. :crybaby: He put a new seal on the hydraulic pump, but the problem still exists.:banghead3 He knows of a breather tube that goes into the crank case from the hydraulic reservoir where the oil is coming from. He's trying to figure out what is causing the fluid to blow out of that tube.
Anyone else have this issue? Any help would be greatly appreciated.

[ILL John]

He either has the reservoir toooo full or the line inside the reservoir has broken off and is trying to lower the level of oil. I don't know how the reservoir sets in a ZB but my UTS/LP has the vent on the side and inside it has a line which goes up to the top of the reservoir to vent air, not fluid.

[ILL John]

Did you find the problem, Welters has the gasket and special o-rings for the pump and box if you have to take it apart. BTDT