[Elecraft] Astron VS-35M Powwer Supply V-

[paul ecker]

I have been working on bonding my station equipment and have come the issue of bonding/RFI fixes to the VS-35M. I have read that it is suggested to scrape the paint around the green wire from the ac round plug attachment point to the case. But there is also a small black wire that bonds the V- terminal to the case. Should the paint around that screw also be removed?  Does that negative rail need to be bonded to the chassis? 
73Paulkc2nyu