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Hyster S25A:
Power Steering doesn’t work

I just picked up a well worn S25 and it works pretty well, but has no power steering. All other hydraulics work fine so I'm leaning toward a check valve or similar. I picked up a diagram manual off of eBay, but it doesn't give a lot of detail. Any ideas?
  • Posted 25 Mar 2025 10:36
  • Discussion started by Aliquantus
  • Minnesota, United States
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Aliquantus,

There is a flow control valve that is supposed to ensure the steering has a constant flow of hydraulic oil. There could be a failed or sticking valve inside. Also, the hydraulic pump has the relief valve inside for the steer system. Connect a gage at the pump and turn the steering wheel until it stops. If you have no pressure, there may be a problem in cylinder, steer control unit or hoses. Will the steering work any if you run the tilt valve while trying to steer? Good Luck.
  • Posted 26 Mar 2025 05:55
  • Reply by Fishmech
  • Virginia, United States
The hard to do we do right away. The impossible just takes a little longer.
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