Deere 1530 Loader Control Valve

[DeereJunior]

I am in need of the experts advise and direction. My neighbor has a Deere 1530 tractor of which he just bought a 145 loader. He has had hose chaatter and poor performance with the loader since he got it. He got a new pump ($900), replaced the seals/rings in the steering column, added the oil filter adapter to go right to the valve and had the rock shaft rebuilt -still doesn"t work. The Deere dealership indicated the problem is he has a closed center system and the control valve is from a 2350 and is the wrong valve for his 1530. They state he needs either aw17528, aw20889 or aw28888. He has two of the "wrong" valves and needs to find the correct control valve to swap - any resources for swapping such items - trades?
Thanks for any assistance

 

[Tx Jim]

JD 2350 tractor are closed-center same as 1530. The valve that came with loader is possibly a converta-valve which means either open or closed by changing a plug. This plug has a quad-ring on inside of valve that has been known to blow out and cause similiar problem on other JD tractors! It is simple to check for leaking/wrong valve by disconnecting return line from tractor. Then crank tractor with both spools in neutral position and if oil comes out return line then valve is problem. Tx Jim