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  1. #21
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    In another life I was a Gravely dealer for 14 years.
    Buy a true OEM belt, most decks will not tolerate an aftermarket especially if you snap the deck in under moderate or full throttle.
    Providing the deck is in good mechanical condition, belt fingers adjusted correctly and tension springs are OEM an OEM belt will last.

    Marketing is sly these days, be cautious of OEM "replacement"

    Buying any other brand/type of belt will only prolong your misery and drain your wallet........

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  3. #22
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    Use Kevlar only, all others will fail. What did these machines use before Kevlar was invented? Interesting.

  4. #23
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    Quote Originally Posted by DJ2 View Post
    Use Kevlar only, all others will fail. What did these machines use before Kevlar was invented? Interesting.
    Simple, the designers kept
    the power density lower.
    Last edited by digger doug; 06-15-2021 at 05:49 AM.

  5. #24
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    Well Kevlar was invented in 1966..........................
    As a note the Gravely 11216 belt that was used on all 50" mower since day 1 was corded. You almost never saw a "clean" break in that belt, usually was worn down so far it just simply shredded. Was a common thing to see one go 15 plus years..... Now that i write this the one on my deck right now is over that....

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  7. #25
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    Quote Originally Posted by BT Fabrication View Post
    check your bearings....... the shaft bearings in the newer style john deeres are garbage. it has a grease fitting on the high end ones, but doesn't help when the bearings have dual shields.
    but that being said, bad bearings make the belt jump and put a snapping tension on them when started causing them to break. also belt alignment and good tension is key to long life.
    I guess you post without reading, note post 13.

  8. #26
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    Quote Originally Posted by GregSY View Post
    I don't have an answer, but if they are failing that quickly, it's more than just the belt brand. I've used lots of belts in a similar application (my Cub Cadet and Land Pride mowers) and the big difference between brands was the cheaper ones would tend to slip even when properly tensioned. Assuming you are using Kevlar belts....you problem lies elsewhere.

    By 'break' do you mean shred apart or snap in a clean break or? The way it failed can give clues as to why it failed.
    No damage to the belt what so ever, a clean break.

  9. #27
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    Can you post a photograph of the belt that shows the features of the break?

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  11. #28
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    Quote Originally Posted by muckalee View Post
    Can you post a photograph of the belt that shows the features of the break?
    I can't post photos. PM your cell number to me and I'll text photos to you. You are welcome to post them here.

  12. #29
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    What do you mean you can't post photos here. Everybody can.

    Using This Board's Image Hosting



    Quote Originally Posted by moonlight machine View Post
    I can't post photos. PM your cell number to me and I'll text photos to you. You are welcome to post them here.

  13. #30
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    Another aspect I've seen with belts and hoses and gaskets and seals.....they are produced then sit in a hot attic warehouse for many years. Super hot in the summer, cold in the winter. Then someone buys them 'new' and wonders why they failed so quickly.

    I see this a lot in the automotive world.....people selling 50 year old seals and hoses for big money....when they should be tossing them in the dumpster.

  14. #31
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    Quote Originally Posted by EPAIII View Post
    What do you mean you can't post photos here. Everybody can.

    Using This Board's Image Hosting
    I could probably figure it out if I could get the photos off my Apple phone and on my computer, but for some reason they won't talk to each other.

  15. #32
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    Quote Originally Posted by MwTech Inc View Post
    Well Kevlar was invented in 1966..........................
    As a note the Gravely 11216 belt that was used on all 50" mower since day 1 was corded. You almost never saw a "clean" break in that belt, usually was worn down so far it just simply shredded. Was a common thing to see one go 15 plus years..... Now that i write this the one on my deck right now is over that....
    I've got you beat, the belt on my JD 62" deck is over 18 years old, and showing no indications of giving up either. I grease the spindles every spring, haven't lost a bearing yet either. (*Knock on wood*)

  16. #33
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    Quote Originally Posted by moonlight machine View Post
    I could probably figure it out if I could get the photos off my Apple phone and on my computer, but for some reason they won't talk to each other.
    It's a marketing thing - Apple is trying to herd the customers, for unobvious reasons.

    Anyway, I solve this problem with an app that allows me to mount the iPhone's disk as a disk on the iMac's desktop, like a USB drive. (Older iPhones had that capability built in, but now an app is required.)

    What I've been using is iExplorer, which has a quirk - it reports successful copying of a photo from phone to computer before it is actually done. If you get empty files, try again, with more patience.

    I assume that there are other apps that will do this as well.
    Last edited by Joe Gwinn; 06-17-2021 at 08:05 PM. Reason: spellchucker


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