Discussion in 'Lawn Mowing' started by Expert Lawns, Aug 18, 2003.

  1. Expert Lawns

    Expert Lawns LawnSite Silver Member
    Posts: 2,660

    Are the belts that turn your blades supposed to be shakey a little bit? I never noticed it until one of my workers went by me and I could see between the top of the deck and the footboard (on my lazer z) and I noticed that the belts kinda shook a little bit. Are they supposed to be really tight? thanks
  2. Phishook

    Phishook LawnSite Bronze Member
    Posts: 1,143

    How many belts turn you blades?
  3. geogunn

    geogunn LawnSite Gold Member
    from TN
    Posts: 3,010

    I believe that a certain amount of shaking...or vibrating between pulleys is normal for belt driven spindles.

    all belts have a tight spot somewhere and the spindle pulleys might not be exactly perfectly round.

    and, in the case of my deck, one belt remains tight while the blade engager pulley causes a little vibration when it is engaged.

    the tight belt has very little vibration.

  4. Expert Lawns

    Expert Lawns LawnSite Silver Member
    Posts: 2,660

    No clue how many belts turn my blades. I believe there are 3 pully's though.
  5. Runner

    Runner LawnSite Fanatic
    Posts: 13,494

    Expert, you have one belt that turns all of your blades, powered from the center spindle, and yes, the belt is supposed to appear "shaky". Don't freak when you see the idler jumping back and forth, either.... it's normal. Oh yeah,... keep that idler greased! This should be done with the belt slipped off of it for a sec..
  6. turkp15

    turkp15 LawnSite Member
    Posts: 123

    I figured I would put this in this thread. I went to my local dealer to get a blade drive belt for my Exmark Viking he told me $63.00 for the belt. I was like you've got to be crazy "he said no these are very heavy duty belts thats why they cost so much" . I ended up leaving with no belt went on to j-thomas they have the belt for I think $12.50. Whats up with this guy charging so much for the belt?
  7. work_it

    work_it LawnSite Senior Member
    Posts: 976

    Thanks turkp15 for the input. I just went to J-Thomas Distributers website and ordered a free parts book. I had the same experience a month ago at the Bunton dealer. They charged me $68 for two drive belts for the blades.:confused:
  8. Phishook

    Phishook LawnSite Bronze Member
    Posts: 1,143

    Witch Bunton do you have? The new Twister, or the old cheapo's?

    FELPRO LawnSite Member
    Posts: 13

    A small bit of belt shake is nothing to be concerned about but the less the better. Shake can indicate a belt with a thin or a thick spot on it from manufacture, no big deal. But, if you have stalled the blades at some time you usually will burn a section of belt that will give up in the future. You can cause a lot of wear on components that move or shake every time the belt goes around a pulley.

    Another factor is shake due to harmonics. No matter how well the belt is made at some rev range you will get a bigger vibration due to harmonics. Try not to use the machine at this setting.

    The price of a belt mostly reflects how well it is made - there are several ways a belt is made and you pay accordingly, but look around for some of the non genuine belts that are made as well or better than the genuine (or best said 'branded') belt. A good dealer will have some obligation to the equipment maker to sell the branded article but will know some non genuine belt that will do the job.

    Sometimes the genuine is dearer, better and cheaper in the long run.
  10. work_it

    work_it LawnSite Senior Member
    Posts: 976

    I guess you could call it an "old cheapo". It has the old belt drive instead of the hydro. I can honestly say I have no complaints though. Guess I just got lucky. This is my first commercial mower and the only maintenance I've had to do this season is: change oil, 2 belts, grease spindles weekly, new air filter every other month, and a new set of gator blades. Can't complain too much after reading week after week about all the problems with these new "advanced" mowers that spend too much time in the shop. I've only lost one day in down-time this season.

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