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