Howdy All! I have one problem on my Dads compact tractor I want to ask about. The monster is a Hinomoto E14D 4X4.
The scenario is that a couple of time a year the hydraulic filter gets gummed up with some type of pasty gumbo s*** and looses all strength. It comes back around after a service but it doesn't seem one should have to do this twice a season
it only gets used maybe 30 hours yearly. Any insight on this Blue Devil from Hell ? Thanks 

anyway, the gumbo you are referring to is paraffin..... the oil is breaking down under stress and trying to return back to its natural state....it may have an internal leak in a circuit causing the oil to overheat....IIRC it doesn't have a filter, just a very fine screen on the pickup tube located in the final drive....... anyway... do a search on hydraulic oils and select a better grade oil than your using........
We use Super Tech oil in this little tractor and from what I understand its supposed to be a good oil. I know it is packaged for Wal-Mart but made by Quaker State. Any thoughts on that fact