Quote:
Originally Posted by Oak
He added a hydraulic lift to this tractor from the original armstrong lift. IIRC, I was thinking the relief needed to be adjusted or changed. If you go to Parts Tree and look up an 1810 & 1811 the relief valves have different numbers. The 1810 uses a SU-9510385-0006 and the 1811 uses a part that ends in -0003. I think I remember reading about this a few years ago but I may be wrong.
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Oh. I assumed he had to swap pumps. I didn't even think about the 1810 having a ported pump. Oak, you are correct.
Quote:
Originally Posted by weatherby
Maybe I could take a relief valve out of my 782 to see if that will change anything....Does it make a difference which one I swap, or should I swap both of them ?
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He's not talking about the big hydro relief valves. He is referring to the charge pump relief valve.
Here are the pics of the 1810 pump (left) and the 1811 pump (right). See the other relief valve in the 1811 pump? Well, I'm at a loss on this one, because it looks like (from parts book research) that the 1811's pump used that second valve (D) as the "center relief" and then the other valve (C) is the implement relief. Whereas on the 1810, valve "C" is the center relief. I'm gonna have to do some digging......... Did you have a parts machine for the conversion? If so, maybe just swap pumps.
hydro.jpg1811 pump.jpg