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  1. #1

    Join Date
    Jan 2012
    Posts
    40
    Location
    Florida
    Mower
    LawnBoy

    Blade speed slows down as I lower the height

    Hi there, I have a JD D100 tractor, bought last year.. we don't use it much so it sits a lot. I noticed that we're having a problem with the blade speed. If the blade height is 1 or 2, the blades barely spin at all. Up at 4, they seem to spin fine. If I start the blades at 4 inches, they're fine, but as I then lower it, the blades slow down, til I think they're not spinning at all. What do I need to adjust to get things working again? The little LED on the tractor says 8.2 , if that helps..

    Pete

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  3. #2
    Bison's Avatar
    Join Date
    Mar 2011
    Posts
    666
    Location
    Alberta -Can
    Mower
    JD 112

    Re: Blade speed slows down as I lower the height

    Tighten the belts

  4. #3

    Join Date
    Jan 2012
    Posts
    40
    Location
    Florida
    Mower
    LawnBoy

    Re: Blade speed slows down as I lower the height

    Will do, is there a how to you can point me to?

  5. #4
    Bison's Avatar
    Join Date
    Mar 2011
    Posts
    666
    Location
    Alberta -Can
    Mower
    JD 112

    Re: Blade speed slows down as I lower the height

    Should be in your operators manual

  6. #5

    Join Date
    Aug 2010
    Posts
    776
    Location
    150 west of tulsa
    Mower
    Murray

    Re: Blade speed slows down as I lower the height

    Quote Originally Posted by peteclark3 View Post
    Hi there, I have a JD D100 tractor, bought last year.. we don't use it much so it sits a lot. I noticed that we're having a problem with the blade speed. If the blade height is 1 or 2, the blades barely spin at all. Up at 4, they seem to spin fine. If I start the blades at 4 inches, they're fine, but as I then lower it, the blades slow down, til I think they're not spinning at all. What do I need to adjust to get things working again? The little LED on the tractor says 8.2 , if that helps..

    Pete
    The manual for my LA 135 states to check belt tension after 5-10 hours of operation or some such number like that.

    How about after 30 minutes of operation if you really want to mow grass. If just riding it to get the mail don't bother.

  7. #6
    PJ's Avatar
    Join Date
    Mar 2012
    Posts
    166
    Location
    South Africa
    Mower
    John Deere

    Re: Blade speed slows down as I lower the height

    Quote Originally Posted by peteclark3 View Post
    Hi there, I have a JD D100 tractor, bought last year.. we don't use it much so it sits a lot. I noticed that we're having a problem with the blade speed. If the blade height is 1 or 2, the blades barely spin at all. Up at 4, they seem to spin fine. If I start the blades at 4 inches, they're fine, but as I then lower it, the blades slow down, til I think they're not spinning at all. What do I need to adjust to get things working again? The little LED on the tractor says 8.2 , if that helps..

    Pete
    Hi it sounds like a v-belt that is either worn or the tensioner is not doing its job look at the belt condition and the tensioner spring for a start.
    Regards
    PJ

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