Tips on keeping drag chains aligned?

Hi all,

Having a lot of fun with my new Gen 2 Elite Foreman. Setup was smooth and all test cuts are coming out great.

One slight issue that I haven’t been able to figure out (not a show stopper) - neither of my drag chains want to stay on their rails. Everytime I run a job they both want to come loose and just kind of hang off the side of the gantry. Any tips for keeping them where they’re supposed to be?