Tod Michigan said: (quoted from post at 08:01:33 06/28/11) OK, If that is the case, then what is the Bolster, where is it located and how can I test it??? What you're saying is I don't need to take the pump out and inspect the relief valve, Right?
Thanks, Tod.
At this point, it looks to me like the pump and relief valve are eliminated as the problem. As for the bolster, someone more familiar with a Farmall 460, like pete 23, can help. It's the steering column in the front, but I'm not sure how the PS is done in the 460. You have to have some sort of valve to input the direction to turn and that has to work off the input from the steering shaft... may be inside the bolster, but it's there somewhere. Then there has to be some form of power assist, which can be some form of rotary torque generator (like Char-Lynn or Behlen make), or it could be a pair of cylinders, or a single two-way cylinder. My guess is on a Farmall type bolster, it may be a pair of cylinders built into the bolster, but that's just my guess.
I'm not that familiar with the workings of individual tractor models, but my input is from 38 years at Cessna/Eaton, with 25 of that time in the Cessna engineering lab. However, without a hydraulic schematic of the system, it can be hard for me to pin-point problem areas... also been retired for almost 9 years and I've forgotten a lot. Dad had a 460 Farmall that I have used, but never worked on any mechanicals.
This post was edited by IH fan at 06:38:45 06/28/11.
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