Pro Cut S 61 inch New Blades Hit each other

[ETMELM]

I have a Ferris 5900632 Deck. It requires 5101755S Blades. Why do they hit each other? Is this a timed deck or an offset deck?
Typically I remove 1/8 inch of material on each end of the blade to make them work. Wouldn't think I should have to do this. Only thing I can figure is the blades need to be installed in a certain manner, like middle pointing front to back and side blades pointing side to side. What do you think?

 

[Rivets]

I looked up the model number you posted and it calls for a different blade number than the one you posted. It calls for part number 5020842. https://www.messicks.com/FE/3014.

 

[StarTech]

Check the diagonal blade length, also check the length from center to each end. I have seen a couple blades over the year where the center hole was off centered.

 

[ETMELM]

I looked up the model number you posted and it calls for a different blade number than the one you posted. It calls for part number 5020842. https://www.messicks.com/FE/3014.

Thanks I called the shop I bought them from and had them measure the length of the 5020842 thinking they would be shorter. It was exactly 21 inches. Same as the 5101755.

 

[MParr]

Check for damage to the deck. Pay close attention to where the spindles are mounted to the deck.

 

[bertsmobile1]

Bad bearings can also provide just enough lateral movement to have the blades touch

 

[rdedrick]

Check the diagonal blade length, also check the length from center to each end. I have seen a couple blades over the year where the center hole was off centered.

View attachment 66651

On the last set of mulching blades I bought the hole was not centered and the blades would have hit. Also way off balance. A few minutes on the grinder remedied the problem

 

[Fish]

Look closely at the bottom of the spindle and the bolts, etc.. Look for wear/slop.