You have the early hydrostatic PS. It has a flow control valve, a piloted slave valve, and a two port directional control valve on the steering shaft.
You can get rid of the last two items and replace them with a four port "hand pump" found on later tractors. I did something similar on a 8000lb Clark forklift. It has its own PS pump from the factory. Works great. I got a brand new four port "hand pump" on eBay for $125. Surplus Sales, Lincoln, NE, has them at a higher price.
I have a 504 that didn't have PS. I put a Char-lynn torque generator down where the steering shaft enters the bolster. IH had the same system but placed the TG below the steering wheel. If you don't want to break into the hydraulic plumbing, install a A or C (or later) hydraulic pump on the engine. It's a bolt-on with your engine. A little bit of the right frame rail has to be ground away.
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Today's Featured Article - Picking Corn - by Rick Nikolich. It was the day before Christmas shutdown at work and I asked our lead engineering expert Scott Andrzejewski what he was going to do over the holidays. He said that he had some corn that he still needed to pick with an antique one-row New Idea corn picker. Scott has a nice farm about an hour north of Lansing in St. Johns, MI. He wanted to get the rest of his corn in by the next day (Christmas Eve). We had about an inch of new snow on the ground and single digit temperatures. So in the bac
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