Agri Fab Aerator question

/ Agri Fab Aerator question #1  

gstrom99

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Nov 4, 2015
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Location
Butler County, Iowa
Tractor
Deere 855, Deere 530R zero turn, Allis Chalmers D17 III, Polaris Ranger, Deere 3032E (SIL's), Yamaha Timberwolf 250, Husky saws, H & H 10k and Carry-On trailers
I just bought/assembled an Agri-Fab 48" core aerator (45-02994). It seems well built, but I did the tongue strength weld modification to be pro-active.

I found out (the hard way) they weren't kidding when they warned about the sharpness of the knives. (!)

Question to anyone that has this: What is the purpose of the four "whizloc" nut and bolts they had me install. They don't attach anything, and I don't see the reason for them...
agi fab.jpg
 
 
 
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