Exmark zero turn

[UT-longbeard]

I've had this mower for roughly 10 years. It's a 60" zero turn. Go to put new blades on it today, engage PTO to mow and notice the blades were hitting bad. They won't hit turning by hand with the belt off, but I can notice the right (discharge side) and middle blade are very close to touching compared to the left blade. No major play in the spindle or odd noise. I will say I spun the middle pully with an impact and it rotated the least amount compared to the others. Any suggestions to pin pointing the issue??

Thanks

 

[imograss]

Possibly a slightly bent spindle . I had this happen once . Blades didnt touch each other when I looked at it. The torque of the PTO was causing it to intermittently shift and make contact with the deck. I could spin them myself and they would not contact anything.

 

[TNTreeman]

Are you sure the new blades are correct? Sharpen your old ones and try them to see if they hit.