This is where you need a parts book. IH still has the Power Steering manual for the 504. There are two systems. One uses a Charlynn inside the dash casting. I think the input is keyed and threaded for the steering wheel. The other is fully hydrostatic. I have a new flow control valve for that. It might work for the Charlynn as well. I believe the hydrostatic also requires an oil cooler.
I put a Charlynn on the steering shaft that comes out of the bolster. I didn't want all the steering torque to go through the three mickey-mouse U-joints. Can't remember where I got the hydraulic power from. I'd have to look at it. I know that I put a Farmall Super A or C hydraulic pump in the blocked off opening on the right front of the engine. The frame channel had to be notched slightly.
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Today's Featured Article - Tractor Traction - by Chris Pratt. Our first bout with traction problems came when cultivatin with our Massey-Harris Pony. Up till then, this tractor had been running a corn grinder and pulling a trailer. It had new unfilled rear tires and no wheel weights. The garden was already sprouting when we hooked up the mid-mount shovel cultivators to the Pony. The seed bed was soft enough that the rear end would spin and slowly work its way to the downhill side of the gardens slight incline. From this, we learned our lesson sinc
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