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Vibration in deck

2K views 4 replies 2 participants last post by  lawnspecialties 
#1 ·
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 ·
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
 
#4 ·
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
 
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