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Troubleshooting Toro Wheel Horse 14-38 HXL Hydrostatic Drive

Posted by kslusser NC (My Page) on
Sun, Sep 13, 09 at 11:47

I have a Toro Wheel Horse 14-38 HXL Riding Mower w/ Hydrostatic drive. Mower drives okay on flat of decline, but struggles to move on any sort of hill. I want to check and/or change the gearbox fluid, but can't seem to figure how where the drain plug is. There's a rubber hose w/ a plastic fitting on the top of housing. Any thoughts or suggestions on troubleshooting this or checking/changing the gear oil?


Follow-Up Postings:

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RE: Troubleshooting Toro Wheel Horse 14-38 HXL Hydrostatic Drive

The topic of drain & fill of modern day hydro trannies has been discussed time and again in this forum. Using the forum search feature (found near bottom of tractor forum home page) will produce quite a few threads for your perusal. But, you need to be aware that you might need to put in "different key words" and do separate, multiple searches to find all the threads. Example, you might do a search using words like "hydrostatic oil change" or "hydro fluid change" or "hydrostat oil drain" or "hydrostat slipping" or "hydrostat overheating" or "hydrostat won't pull". Try to avoid using words like Toro Wheel Horse or any other words that are "too general" or you will be directed to every thread that has the word Toro or Wheel Horse in it. I'm not giving you a "brush off", it's simply that there is just too much info and too many variations for what you might have to do on your TWH to drain & fill the hydrostat. Do some searches, get familiarized with the search feature and read about what has been suggested in the past while you wait for a more specific response in this thread. You will probably also read about the correct way to operate your hydro and some other tips, do's & don'ts for hydros as well. Welcome to the tractor forum.


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RE: Troubleshooting Toro Wheel Horse 14-38 HXL Hydrostatic Drive

  • Posted by baymee LehighValleyPA (My Page) on
    Sun, Sep 13, 09 at 19:05

The key statement is that it won't go uphill. This also happened to my Wheelhorse. The drain on mine was a large hex nut, plastic, on the very bottom. It was very hard to remove because it was turned so far inward.

It's probably worn out internally. But, anyway, on mine, I kept changing the oil from 20W to 30W to 50W to 90W and I got a few years out of it and then it just wouldn't work anymore. Replacement Eaton transmission: $800 just for the part. Replacement was easy.


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RE: Troubleshooting Toro Wheel Horse 14-38 HXL Hydrostatic Drive

You can download the manual though Toro parts. You get to R&R the transaxle to change the oil. Keep the dirt out!


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RE: Troubleshooting Toro Wheel Horse 14-38 HXL Hydrostatic Drive

I have a wheel Horse lawn tractor that the hydrostat transmission slips when it gets hot I need a shop manual that shows me the rebuilding process


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