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  1. #21
    Elite Member George2615's Avatar
    Join Date
    Feb 2005
    Posts
    4,488
    Location
    Central Square, NY
    Tractor
    LS XR3037HC

    Default Re: Problems with Mahindra 15 Series

    Dougster,
    The inch an hour drop was with an empty bucket. It was almost 2-3 inches an hour with a few hundred pounds in it. That was how I found it was leaking, Had a load of topsoil in the bucket that I was putting in several small flower beds for the wife. Every time I turned around for another shovel full the bucket seemed lower. When I finished I checked its drop rate empty and based on the loader manual troubleshooting guide it lead me to believe I had an internal leak in the valve and my dealer agreed.
    I've seen other tractors in fields with the bucket up for a week or two at a time without any drop. I wish mine had zero leakage, even the new valve allows bucket drop but nowhere's near the inch per hour of the old one. My dealer has had some tractors on his lot with the buckets up for display that he says have been up for weeks without starting the tractors.

  2. #22
    Veteran Member
    Join Date
    Sep 2006
    Posts
    2,435
    Location
    Eastern MA
    Tractor
    2004 Mahindra 4110 w/509 BH

    Default Re: Problems with Mahindra 15 Series

    Quote Originally Posted by George2615
    Dougster,
    The inch an hour drop was with an empty bucket. It was almost 2-3 inches an hour with a few hundred pounds in it. That was how I found it was leaking, Had a load of topsoil in the bucket that I was putting in several small flower beds for the wife. Every time I turned around for another shovel full the bucket seemed lower. When I finished I checked its drop rate empty and based on the loader manual troubleshooting guide it lead me to believe I had an internal leak in the valve and my dealer agreed.
    I've seen other tractors in fields with the bucket up for a week or two at a time without any drop. I wish mine had zero leakage, even the new valve allows bucket drop but nowhere's near the inch per hour of the old one. My dealer has had some tractors on his lot with the buckets up for display that he says have been up for weeks without starting the tractors.
    Thanks for the explanation. I can see where that kind of FEL drop would be troubling. Good that you got it fixed under warranty!

    By the way... Is it accurate to say that cylinder seals tighten and leak less under load... and therefore any marked increased "relaxation" under load is likely to be from a leaking valve? Conversely, if relaxation is somewhat higher with no load, than the valve is probably fine and the cylinder seals may be leaking? Or am I out to lunch on this armchair theory?

    Dougster

  3. #23
    Veteran Member rback33's Avatar
    Join Date
    May 2003
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    1,446
    Location
    Kansas

    Default Re: Problems with Mahindra 15 Series

    Quote Originally Posted by Dougster
    Thanks for the explanation. I can see where that kind of FEL drop would be troubling. Good that you got it fixed under warranty!

    By the way... Is it accurate to say that cylinder seals tighten and leak less under load... and therefore any marked increased "relaxation" under load is likely to be from a leaking valve? Conversely, if relaxation is somewhat higher with no load, than the valve is probably fine and the cylinder seals may be leaking? Or am I out to lunch on this armchair theory?

    Dougster

    Sorry to say Doug, but yer out to lunch on the armchair theory. Increased pressure makes them leak faster. There is a proper method for checking leak down though. Most of the dealers on have had service school training on it already.

  4. #24
    Veteran Member
    Join Date
    Sep 2006
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    2,435
    Location
    Eastern MA
    Tractor
    2004 Mahindra 4110 w/509 BH

    Default Re: Problems with Mahindra 15 Series

    Quote Originally Posted by rback33
    Sorry to say Doug, but yer out to lunch on the armchair theory. Increased pressure makes them leak faster. There is a proper method for checking leak down though. Most of the dealers on have had service school training on it already.
    Oh well... So much for my 5-minute engineering assessment of hydraulic cylinder seal design! Win a few... lose a few!

    Dougster

  5. #25
    Veteran Member AchingBack's Avatar
    Join Date
    Jun 2005
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    2,311
    Location
    Southern Oregon
    Tractor
    Mahindra 2615HST

    Default Re: Problems with Mahindra 15 Series

    Just had a talk with my 2615. Seems he is gettin' pretty bored sittin' in the shed. He says to me, " I don't care if it is winter. Fact is, I'd be a heck of a lot warmer if I was out there workin'. For cryin' out loud, boss; give me sumthin' to do."

    By this time last winter, my access road had flooded twice, and I spent one full day putting about 200 yards of it, back together. This year, instead of the rain, we are experiencing near record low temperatures.

    I think if I were a cold machine, on a day like today; I'd be begging for some action. I guess the least I could do is go out and share a warm beer with the poor guy.

  6. #26
    Veteran Member tractorErnie's Avatar
    Join Date
    Mar 2002
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    2,214
    Location
    Bahamas
    Tractor
    Yanmars = Fx235- F255- FX335... branson 4220i tlb - hinomoto JF1 New Holland 7610 Branson 3510 tlb

    Default Re: Problems with Mahindra 15 Series

    Quote Originally Posted by AchingBack
    Just had a talk with my 2615. Seems he is gettin' pretty bored sittin' in the shed. He says to me, " I don't care if it is winter. Fact is, I'd be a heck of a lot warmer if I was out there workin'. For cryin' out loud, boss; give me sumthin' to do."

    By this time last winter, my access road had flooded twice, and I spent one full day putting about 200 yards of it, back together. This year, instead of the rain, we are experiencing near record low temperatures.

    I think if I were a cold machine, on a day like today; I'd be begging for some action. I guess the least I could do is go out and share a warm beer with the poor guy.

    Dont worry hes not crazy, I talk to my yanmars

  7. #27
    New Member
    Join Date
    Nov 2004
    Posts
    16
    Location
    Indiana
    Tractor
    Mahindra 2615 HST

    Default Re: Problems with Mahindra 15 Series

    120 Hrs and no complaints here with my 2615 HST.

    I did have a hydraulic leak that the dealer came to my house and fixed the very next day....free of charge!

    In fact we, had a house built this past summer and I did all of the grade work myself with this tractor (moved & graded tons of dirt). I also grade my 500' driveway once every 3 to 4 months, mow around 3 acres a week, grade the snow from our gravel county road (when we get snow...lol) and occasionally drag a tree out of the woods.

    Great little tractor for the money or maybe I should say "a lot of tractor for the money".



    Matt Sullivan
    Scipio, IN.

  8. #28
    Veteran Member rback33's Avatar
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    May 2003
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    1,446
    Location
    Kansas

    Default Re: Problems with Mahindra 15 Series

    Quote Originally Posted by Dougster
    Oh well... So much for my 5-minute engineering assessment of hydraulic cylinder seal design! Win a few... lose a few!

    Dougster
    Yer right about that. win some lose some. I just realized I left the smilies out, but I think you knew I was just giving you a hard time. Not trying to bust your chops to much over here...

  9. #29
    Veteran Member
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    Sep 2006
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    2,435
    Location
    Eastern MA
    Tractor
    2004 Mahindra 4110 w/509 BH

    Default Re: Problems with Mahindra 15 Series

    Quote Originally Posted by rback33
    Yer right about that. win some lose some. I just realized I left the smilies out, but I think you knew I was just giving you a hard time. Not trying to bust your chops to much over here...
    Never a problem... I've got a very thick skin! Plus it was just a casual theory (no pride of authorship!) formed after I "Googled" hydraulic cylinder seal design. Most of you here have forgotten more than I will ever know about hydraulics... and some, like the MadReferee... should be teaching it at the graduate level!

    Me, I'm just scratching the surface...

    Dougster

  10. #30
    Veteran Member
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    May 2004
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    1,062
    Location
    Moyie Springs, Idaho and Kalispell, Montana
    Tractor
    Lots of them, I'm a dealer

    Default Re: Problems with Mahindra 15 Series

    Just quickly reading but look at these loader bleedoff specs.

    Loader and backhoe boom/bucket lower slowly while parked

    Maka

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