Spotted horse, I just had this same problem with Dads (now mine) 400. Heres something to check. If its an original PS it will have a U pipe from the first (inside most hydro valve) to the bottom of the priority valve. There is also a plug in the steering post manifold to block hydro fluid and force the priorty valve to supply the hydro valves after the PS has fluid,hence the priorty. Mine the plug had migrated to the valve passage. Its suppose to be sandwiched between the manifold and valve. Mine was missing the washer to hold it there. I welded a washer and put a new O-ring and it was good to go. HTH Tim
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Today's Featured Article - Women and Tractors - Tractor Engine Repair - by Teri Burkholder. One of the great things about working on a tractor engine with your other half is that you know what he is thinking of at all times and can anticipate his every move and his next thought of what he will do. With Ben, anyway, I can tell! He'll be busy working and I’m handing him tools and he says, "give me that..." and I’ve already got it in his hand or "hand me that....."and I’ve got the portable light right where he needed it placed to see. "Run in the house and get me a...."as I open th
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