Vibration in deck

Discussion in 'Tractors' started by OutlawJoseyWales, Jul 6, 2007.

  1. OutlawJoseyWales

    OutlawJoseyWales LawnSite Member
    Posts: 6

    This is my first time posting, but have enjoyed reading the many experts here.

    However, Now I have but a problem.
    I have a new mower, a MTD 601 model 46" cut. I ran over a limb and after I got off of it, I had a bad vibration in my deck when I engaged the blades.
    Although I can still mow fine, it shakes badly, which it didn't before.

    I dropped the deck, which is easy with this mower and turned it over but I can't see anything wrong with any of the blades.
    It has three blades, the two outside ones are larger than the inside one.

    If anyone can help me, I certainly need help.
    Thanks in advance for any advice. OJW
     
  2. lawnspecialties

    lawnspecialties LawnSite Silver Member
    Posts: 2,513

    Check these:
    1: Did a blade slip? Is there any way a blade could have moved on the spindle bolt. It only takes a fraction one way or the other to cause vibration.
    2: Check ALL the pulleys. Any damage? Is there any small piece of debris lodged in the V of a pulley? This happens once in a while and will cause considerable vibration. Don't forget the PTO pulley, too.
    3: Check your belts. Did a chunk of belt get ripped off?
    4: Check all your mounts. Have the spindles been moved slightly?

    Keep us informed. Good Luck
     
  3. OutlawJoseyWales

    OutlawJoseyWales LawnSite Member
    Posts: 6

    Thanks for the ideas I'll check those things in the morning.
    I pulled the belts around and didn't see any chunks missing.
    But I'll see if anything has been moved slightly, I was looking for big things, mainly a bent blade, I've had that before.
    Thanks again, OJW
     
  4. OutlawJoseyWales

    OutlawJoseyWales LawnSite Member
    Posts: 6

    Thanks so much for your help.
    I took off the covers that are over the pulleys, and I couldn't believe it but the large nut that holds it was so loose that the pulley was almost off.
    This is a new mowever. Maybe the limb jammed the blades and caused this.

    Thanks for you help, it worked.
    OJW
     
  5. lawnspecialties

    lawnspecialties LawnSite Silver Member
    Posts: 2,513

    Good job, Josey. One time I hit a metal stake in the ground on my zero-turn and it spun the blade completely off.:dizzy:
     

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