Quadratrac inspection

[Simontrips]

I have two quadratrac units sitting on the floor of my garage.How do I tell which one is in better condition.
How do I check cones and how do I tell if they are worn or not.I will go ahead and replace the chain in both,what else should I check for.

[River Beast]

Go to my site and check out the info I have on QT instpection with detailed pics....

[Simontrips]

Thanks R.B. I was hoping for a speedy response so I could get into this tonight.