Super Z Drive belt keeps snapping

Discussion in 'Hustler Turf Equip (Archived)' started by Mack77, Oct 15, 2012.

  1. Mack77

    Mack77 LawnSite Member
    from NJ
    Posts: 208

    2008 Super Z, 31HP/60" cut keeps snapping the hydro drive belt. I'm on my 3rd belt of the season. Why is this happening?? How can this be fixed?
     
  2. hustlermidwest

    hustlermidwest LawnSite Senior Member
    Posts: 636

    Mack77,
    When you say snapping you are referring a clean break or is there wear from a foreign object and then it breaks. 3 belts in a season, something ain't Kosher. Is there anything in common that you are doing prior to breakage? Before I go any further I need to know what the ends of the belt looks like and that will send me down a path.

    Brian O
     
  3. Mack77

    Mack77 LawnSite Member
    from NJ
    Posts: 208

    Brian -

    It's a clean break. It happens out of no where, for example yesterday I was mowing a straight 1 acre piece of property at speed, then all of a sudden the machine loses momentum and coasts to a stop. No sticks, rocks, or debris.

    Attached are pictures of the belt, and the break.

    Thanks!

    IMAG0062.jpg

    IMAG0061.jpg

    IMAG0060.jpg
     
  4. hustlermidwest

    hustlermidwest LawnSite Senior Member
    Posts: 636

    Mack,
    Perfect photo's. The reason I asked to see them because how they break normally tells a story. If they were shredded and ripped I would look for debris in the pulley, these show a clean cut. This tells me that a jerking motion, a quick pull caused the belt to break. I mostly see this with deck belts when you strike something, and not so often in drive. Normally when this happens to the drive I first look the idler arm and make sure it's free moving. Belt needs to be off to do this. I also grease the pivot point at this time. If all is well, the next thing would be the spring. If it's weak it will allow the idler arm to move back and forth as resistance in the drive changes working like a whip. I believe that is the cause of your issue but first check the arm.

    Brian O
     
  5. RiggitanoLandscape

    RiggitanoLandscape LawnSite Member
    Posts: 24

    It's most likely your motor mounts loosing up. I had a mini z that had this problem. if you don't check the motor mounts like every 100 hours or so if they back off then with all the vibration the belt will start snapping. That belt should last like 500 hours easily
     

Share This Page