Loss of power stering

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    • February 10, 2013 at 8:44 pm #35746
      Affordable
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        You need to start with what model tractor you have ? This will help with how to try and resolve your problem

         

        Tommy

        Affordable Tractor Sales

        “Your Jinma Parts Superstore”

        http://www.affordabletractorsalesco.com

      • February 10, 2013 at 9:34 pm #35747
        Len10
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          Hi Tommy,

          The tractor is a Luzhong TC254.  I don't think there are many Luzhong tractors sold in this country, but is seems to be very similar to the Jinma.

        • February 11, 2013 at 9:12 am #35748
          Len10
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            I want to clarify something from my original post.  There is no mechanical connection between the steering wheel and the wheels.  Since I am still able to steer, I assume the steering pump referred to as a “hydraulic steering wheel assembly” in parts diagram is functioning properly.  In addition the steering cylinder must also be working properly.  If my assumptions are correct, does this mean the priority valve (called the “one-way stable distributing valve” in the parts diagram) is defective?  Am I on the right track?  I'll try to scan and post the exploded parts diagram later today.

          • February 11, 2013 at 11:03 am #35749
            rdstevens
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              From your clarification, if you are sure the hydraulic tank is at or near the proper level, I'd be looking at the priority valve as a likely source of your problem.  Could be sticking, could be plugging up, could be foaming fluid. 

            • February 11, 2013 at 12:33 pm #35750
              Len10
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                Thanks for the reply.  I'll try topping off the hydraulic tank. If if were low or foaming fluid, wouldn't I have loss of power to the loader as they run off the same pump?  Below is the exploded parts diagram.  

              • February 11, 2013 at 8:24 pm #35751
                DavidPrivett
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                  I had a ford that in winter the power steering would not work until the fluid warmed up.I used universal tractor fluid because it was thicker and did not run out all the small leaks it had. but it had that issue in the winter.the loader I would think has larger ports letting the thicker fluid pass. but trash in the valve would restrict it giving the same symptom.

                • February 11, 2013 at 10:09 pm #35753
                  Len10
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                    I'll try replacing the hydraulic fluid. I've been meaning to do it soon anyway.

                  • February 12, 2013 at 4:40 pm #35754
                    circleg
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                      Most of the time when the PS works as you described on the Jinma 254's it is a torn seal in the Power steering cylinder itself allowing the fluid to by pass causing you to make many turns of the steering wheel before the wheels will turn. You may want to pull the shaft out of the PS cylinder and check them as well.

                       

                      Ben

                      http://www.circlegtractorparts.com

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