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Toro proline 44" hydro adjustability for tracking

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  • Toro proline 44" hydro adjustability for tracking

    I recently purchased my first hydro wb and have no idea what im doing. It is a toro proline 44" with the 30144 deck and 400hrs on it. I purchased for $250 with a bad clutch brake and flat tires. I replaced the tires first and tried to drive it to the back yard and it had very little power in forward and stopped on a slighttest of hills. So i backed it up.

    Well i adjusted the what i think now is called the check valve on the inner side of the pumps. It now pulls strong in forward and reverse but did not track straight.

    Question #1, is all the tracking adjustment in the tbar linkage ( i have instructions on this) or do the adjustable valves on the pumps play into it as well. Or maybe i was not supposed to adjust the bolt on the pumps.

    The blade clutch is fixed and the mower is ready to cut but i need to make sure it is set up correct before i try to take it to use on customers yards. I want to adjust it right before i get accustomed to it.

    Any help with knowledge about this hyro setup would be appreciated as it is foreign to this guy who has only owned belt driven machines to this point.

    Im sure there is a post on this but i have been unable to find it if it exists

    Question #2, i need to buy blades for it. Does anyone have recomendations on the best blade paing with this deck? Hi or low rise or specific blades you recommend?
    Last edited by Gls; 05-13-2017, 09:35 PM.

  • #2
    I was thinking there would be a lot more information available online about this but there wasn't.

    I did find this manual on adjusting the tracking. https://www.manualslib.com/manual/11...6.html?page=40.

    It looks like the linkage bar is where they want the adjustment to be made.

    As far as the blades go, are you bagging or would you rather have high lift mulching blades? That makes a difference in your choice.
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    • #3
      I will mulch most of the time. So i might try high lift blades. I will post pictures tonight on the hydro system. I have the linkage adjusted and can go pretty staight at full speed but while going slow and at a comfortable walk it is hard to keep straight because the Tbar control is so touchy. This may be because i am not use to it but i feel like it is not set up correctly. Btw i have new grommets and have made sure everything is tight with no play from the tbar to the pumps.
      Last edited by Gls; 05-18-2017, 12:52 PM.

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      • #4
        This isn't for the same mower, but maybe seeing a visual may help in adjusting the hydro mower tracking. Let me know.

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        • #5
          Well i changed the filter and fluid to mobile dte 26, toro recomended, and have been able to fix the tracking. It also no longer "jumps" when going from neutral, but has smoothed out.

          I can not find any info on how much the check valve should be screwed in but have set it to where it seems to run best on hills but can still be maneuvered at a slow speed for around obstacles.

          LOSS OF POWER ON HILLS, is this a pump issue or could it be from lack of power from 14hp engine?

          Thanks steve for trying to help me through this one, sometimes you learn best by having to figure it out yourself and good ole trial and error!

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          • #6
            I can not find any info on how much the check valve should be screwed in but have set it to where it seems to run best on hills but can still be maneuvered at a slow speed for around obstacles.
            It sounds like what you are doing is correct.

            LOSS OF POWER ON HILLS, is this a pump issue or could it be from lack of power from 14hp engine?
            Does it sound like the engine is bogging down on the hills or is it sounding strong?
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            • #7
              Engine sounds normal. Left pump is weaker than right but right struggles on step inclines as well. Still a month or two from feeling confident in using on a customers yard but im starting to get use to how the tbar and hydros work. Just need a little more fine tuning on the machine and myself.
              Im going to try changing the hydro fluid again. I changed filter the first time and allowed the tank to empty but i couldnt completely drain the pumps,motors, and oil cooler.

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              • #8
                Were there any metal shavings in the emptied oil? This is a good video to show how to rebuild the pumps. I don't know if that is necessary, but if you needed to, this might help expand your knowledge on it.
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