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Lesco ZTR problem

Discussion in 'Mechanic and Repair' started by rbig, Apr 24, 2007.

  1. rbig

    rbig LawnSite Member
    Messages: 112

    I do volunteer work on lawn maint eqpt at our church and Elks Lodge, as well as maintain my own four garden tractors.

    Got a report today that a big Lesco ZTR (model 707207) I maintain had "some kind of deck problem". The report was right. I got by the eqpt shed today and checked it out.

    Everything looks good; belts OK, engine runs fine, etc. What happens is when I pull the PTO switch, I get a loud "clack", but the blades don't spin.

    I believer the clacking noise is the PTO coil sucking the rotor in, like it should be doing when power gets to the coil. Now I'm wondering if maybe the rotor is cracked or something so that it goes up an down, depending on whether the PTO coil is energized or not, but it doesn't engage the deck pulley as it should.

    Any thoughts appreciated. Looks like I may have to drop the deck and put a new PTO in. Sure hope not.
  2. MowerMedic77

    MowerMedic77 LawnSite Bronze Member
    Messages: 1,164

    What is that a 60" ZTwo Mower? I would check that the deck can free spin without the unit on please:) Take the tension of the pto belt and spin each blade a couple of revolutions by hand and make sure nothing is hitting under the deck first before replacing anything.
  3. rbig

    rbig LawnSite Member
    Messages: 112

    Thanks for the response. First thing I did was make sure deck was OK and functional by turning things by hand.

    The PTO just isn't engaging. It's trying to, but just doesn't make it. I'm afraid it may be a broken rotor. I may call Lesco tomorrow and see what their take on it is.
  4. MowerMedic77

    MowerMedic77 LawnSite Bronze Member
    Messages: 1,164

    Has it had a clutch air gap adjustment?
  5. Restrorob

    Restrorob LawnSite Fanatic
    Messages: 11,029

    That was my first guess MM....

    There is three slots in part # 5 to insert a 0.012 feeler gage and adjust the three nuts until you feel a little drag on the gage. But only move each nut a little at a time because one will throw the other out.

    Also, I have seen the spring bands (In Red) snap from hitting things, You would hear it engage but wouldn't spin the deck.


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