Oregon 410-120 vise is garbage

[Tree Tater]

I'm really getting aggravated with the vise on my Oregon 410-120 bench grinder. It won't grip chains and is causing me to lose so much time fiddling with the vise trying to get it to securely grip the chains....

Any insight to what the issue is and how to fix it? Really p#$&3d off at this point.

 

[coffeebrk]

Can you post some pictures?
There should be no clearance between the rails when the lever is moved to the closed position