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Walker MT started eating pto belts

Discussion in 'Mechanic and Repair' started by diggerdanny, May 27, 2009.

  1. diggerdanny

    diggerdanny LawnSite Member
    Posts: 5

    My MT Walker suddenly started eating pto belts. It's the belt that drives the blade. Any common problems that would cause this? None of the guides are touching it. The last belt actually wore through the grooves and created 3 separate belts. Any advice appreciated. Thanks
  2. tomo

    tomo LawnSite Senior Member
    Posts: 660

    Walker maintenance 101
    Walkers eat up pulleys
    Between 1500-2500 hrs most pulleys will be worn out . Some will have wear that seems minor but replacing them gives good results

    The pto belt system
    crank pulley and pto box pulley work together Always replace as pair with new belt

    In saying that as above the best way is to buy a speed up kit which comes with crank and jack shaft . Purchase pto pulley as an addition

    Further The reason u should buy speed up kit is to get the later generation pulleys in the larger diameter [larger diamater gives belt improved grip]

    THERE is 4x other components u need to inspect
    1/ The tensioner 4 the pto belt needs to be pulled apart and checked . The brass sleeve is most likely worn out . A failed part can cause tensioner to stick etc
    1a / Once the above has been checked and repaired . Adjust spring tension to factory specs as per manual IT CANNOT BE UNDERESTIMATED that to much or to little tesion is bad for belt life
    2 / The tensioner pulleys for both the ground drive belt and pto belt should NOT be worn in the bottom of groove [shiny surface ],if they are replace .
    3 / The enguagement arm for the blades . At the pivot base for this item depending on year of machine, there will either be DUfor bearing [sleeve] or the original needle rollers .If it is fitted with needle roller setup uprade required .The needle roller s will eventually cause very notchy/sticky operation
    4/ There is an upgraded tensioner arm for the ground drive belt also


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