The manual stays to just turn the wheel all the way in each direction to bleed it. I did a bunch of work on the steering on my Farmall 560, and had no trouble bleeding - it seemed to work immediately. I'm not sure how to best test it, but eliminating the question of hydraulic fluid supply as suggested by Les seems like a good start. There are 2 lines that come off the left side of the control valve (left as if you are driving). One line goes into the top of the upper bolster in front of the radiator, and one behind the radiator. Unless I'm all turned around, the one to the front gives the power for a left turn and works as a return line on a right turn. Opposite for the other line. Anyway, loosen the front one and turn left and watch for fluid (with the tractor running). I've never done that, and don't know how much to expect - it might be a bunch. Might be a 2 person outside job. You can get to this line either at the valve or by removing the front grill. I had access to one of the manuals, but was pretty confused until I got it apart because the manual covered the 460, 560, and a newer model, and there are different directions for manual versus power steering and for Farmall vs International. Once I got it apart I could match the instructions to the part, but was pretty confused for a while! Good luck and give a yell if this doesn't make sense.
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