Ammeter disassembly

Did you read the thread I posted? There is a tremendous amount of info in there
I read the entire post. I guess I could grind off the rivets and remove the ammeter faceplate. Right now I am having some issues with the gauge needle rubbing the faceplate, and getting hung up as a result. Also, it's not properly calibrated. If I can get the needle clear of the faceplate and get it calibrated, I'll be a happy camper!