My Mars acceptors were resetting and sporadically working. I thought it was related from the sun, this would explain the reason I have never had any problems except the morning after someone broke off the shields. So the plan was to use Lexan to be in-front of the bill acceptor.
This really was a 2 person job but my friend Duct tape and broom helped.
I had to grind down the nut and screw to allow it to lay flat.
Finished