Toro Z-Master Diesel belt rubbing????

Discussion in 'Mechanic and Repair' started by Shappie, Mar 10, 2013.

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  1. Shappie

    Shappie LawnSite Member
    Posts: 44

    We have two Toro Z-Masters with the Kubota diesel motor. The belt rubs the hydraulic Filter as it passes when the deck in set on any of the higher settings on both mowers. This causes the belt to slip off multiple times a day. Is there any fix for this?? Seems like it would be a common problem with these ZTRs.THANKS IN ADVANCE!!
     
  2. Patriot Services

    Patriot Services LawnSite Fanatic
    Posts: 12,531

    Not familiar with the specific model per se. Would a slightly longer or shorter belt allow the idler to give a better angle away from the filter? I'm surprised a design flaw like this hasn't been addressed by Toro. Have you checked with them to see if there is a factory fix?
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  3. ricky86

    ricky86 LawnSite Bronze Member
    Posts: 1,719

    Check the push bars and pins. Excessive wear will cause the deck to pivot to the side.
    Make sure the guide is on the spring loaded idler arm and, while in the operator's position,
    is at about 7-8 o'clock
    The same guide #108-7220-01 can be installed on the opposite idler.
    Engaging PTO at any other than full rpm's will cause problems in some cases.
    And I'm not getting into a debate about the last statement.
     
  4. brassmonkay

    brassmonkay LawnSite Member
    Posts: 3

    i have the same problem. the problem would be resolved with a shorter hydro filter but not sure which one would match up. what toro refers to as the deck struts are worn but the side to side movement isnt significant. it is mainly when the deck pushes up on one side from the scalp wheel any hits the filter(which has bad wear marks on it now), which in turn pulls it off of the idler pully. have new struts on another unit and have the same problem.. i feel your pain shappie!

    -Danno
     
  5. brassmonkay

    brassmonkay LawnSite Member
    Posts: 3

    no guides are on the pulley, but i dont think i want the belt to be forced to stay on if it is hitting the filter. mine are a 2007 and 2008 model 74267 and neither came with the guides. also had a 74251 (kaw equivalent) that had a few put on under warranty after some problems (mainly from sticks etc) not from a filter or ?
     
  6. ricky86

    ricky86 LawnSite Bronze Member
    Posts: 1,719

    74251 is a Z500 not a Z593 series. Completely different design, not a Kawasaki equivalent And my point is a guide belongs on the r/s. The guides were installed on the Z500 to reduce belt slap. They are on the Z593 to retain the belt during engagement. And if you don't want them don't use them. Shappie you gots youself one of those experts, so I'll bow out.
     
  7. brassmonkay

    brassmonkay LawnSite Member
    Posts: 3

    that was very helpful from the mouth of an expert.
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    Last edited: Mar 11, 2013
  8. Shappie

    Shappie LawnSite Member
    Posts: 44

    Brass, seems like my problem is near and dear to you :). Ricky, appreciate your opinion. We can have more than one though until our problem is resolved. Aren't we all here for the same reason???
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  9. Dodge Boys

    Dodge Boys LawnSite Member
    Posts: 41

    In longer wet grass ours did that all the time. Tried everything to solve it, but was never able to find a fix. Ended trading them on Green ones, that fixed everything! :canadaflag:
     

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