Question about Craftsman 17.5 hp 42 in. Deck Lawn Tractor - CA Model

4 Answers

My craftsman tractor model # 917.259556 ,hydro gear transaxle model #310-0650 has a worsening problem loosing drive power, I had removed the transaxle and left it upsidedown for several days to drain and refilled it with the correct amount of required oil and reinstalled it on the tractor , I purged it as described in owners manual more than 5 times , it worked somewhat better for a while but now we have to push it up hills and reverse barely works, I double checked brake adj. & fluid level-ok. the internal parts are expensive, if i pull it apart will i find it to be excessivly worn and lots of metal filings, or could it be carefully cleaned and filter cleaned or replaced. Has any one had any luck reparing these with out replacing 100s of dollars on parts. ADAM thanks for the help

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  • Adam Harrer Aug 29, 2010

    The engine does not lack power.

  • Adam Harrer Aug 29, 2010

    would disassembly and manual cleaning be worth a try.

  • Adam Harrer Aug 29, 2010

    what about the filter inside

  • Adam Harrer Aug 29, 2010

    thanks for your help , I think I will pull it apart and check the filter and look for the sludge problem you mentioned, do you know if its a washable mesh type screen or paper. Note: This unit has only an internal filter, not a screw on type like conventional auto filters.

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Yes disassembling the unit and getting filter cleaned should help in this types of problem. And in this type of craftsman tractor there are mostly washable mesh type screen. Keep updated.Thanks.

Posted on Aug 29, 2010

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One thing you can try is to drain your fluid and refill with stp oil treatment,it not a perment fix but it will help you for now,and maybe you can trade,I have had this happen to me and it worked

Posted on Aug 29, 2010

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Adam it most likely has some gunk / debris inside of it that is allowing fluids to bypass across rubber surfaces that should be sealed. I have to be honest I have had very little sucess as a tech tearing into one of these. Mainly because the time it takes ends up running up a labor cost more than the replacement unit cost. I always tell the owner that there is a 50 - 50 chance of saving the unit. I have used engine flush in them before and had about a 50% success rate of returning them to service. You fill it about half full install the plug and shake it vigorously. Then drain it and do it again. You keep doing that until you notice that the exiting fluid are free of debris. You can Cheese Cloth the engine flush over a bucket so you can keep using it for cleaning. Just note the cheese cloth will be flammable after your finished and will need to be stored in a covered metal container. I do not recommend using B-12 chemtool as it will cause the seals to harden quickly. Once your sure that the debris is gone.. you have to let it sit upside down for about an hour before refilling and installing the plug for the last time. If after all of this it does not work properly it is your call as to attempt repair or replace the drive. Like I said I have very little success professionally with attempting repair and have been doing lawn equipment service since the very first hydro-static drives became common place.

Thanks for choosing FixYa.

Kelly

Posted on Aug 29, 2010

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  • Kelly
    Kelly Aug 29, 2010

    The debris we are talking about is relatively small in nature but that is all it takes on a hydraulic action type seat to cause it to leak by. I would try the flushing routine that I mentioned before I tore into it as a last resort. You have nothing to lose by taking it apart but if you go the remaufactured replacment route they may ask for your (core) transmission. And a remaufactured unit is just as good as a new one. I am sure you know these rascals (310-0650) run a small fortune to the tune of over $500.00 new.



    I like this parts breakdown because it is in pdf format and you and enlarge it. Nice when it comes to parts searching or oops where does this part go and I do not have the service manual.....





    http://www.mymowerparts.com/pdf/Husqvarn...





    I am not in this for the money. I would rather see your hydrostatic drive working again by sharing my experience and knowledge. I do wish you the best.



    Kelly




  • Kelly
    Kelly Aug 29, 2010

    Here is the service manual that should assist you in finding out what has failed. http://www.mymowerparts.com/pdf/Husqvarn... See section 3



    Kelly

  • Kelly
    Kelly Aug 29, 2010

    Adam the filter maintenance interval is that it should be changed every 200 hours or more often in extreme conditions.



    Since your having problems of course I recommend changing the filter. Note the 5 - 10 psi pressure check in section 3 of the manual page 21 if you have noted leaks. Also note the bypass valve linkage on page 20 which is part of the freewheel control. A sloppy linkage can cause the symptoms your having. You should test that it freewheels when in transport position and locks when transport is deselected.



    I see your question keeps going back to the main questions board. How the site works: Everytime you reject an answer it goes back to the main board. You can just reply vs reject answers. You are not charged unless you accept an answer. (You can respond without accepting) When you reject an answer you will get a different expert answering your question. I don't mind at all. My preference is to get you enough information to so you can get your Hydro Gear functioning properly at the lowest possible cost. I am just explaining how the site works.



    Kelly

  • Kelly
    Kelly Aug 31, 2010

    Adam,

    I have never seen a paper filter as an internal filter so at this point not being the person taking it part I would assume it is a washable mesh filter. We soaked them in solvent. (and engine flush is a good soaking medium) Maybe the book is wrong but it is showing the -0650 drive with an external filter. You said that there was no external filter so evidently the service manual is incorrect as published. As a professional I sure would like to hear about the end result when your finished be it good or bad. I would bet the farm on your finding even more gunk and goo inside the unit. That is why I recommended you use engine flush in an attempt to clean by solvent flushing before tearing into it. I do wish you the best and honestly hope that in the end it works fine.

    Kelly

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