I managed to kill Raze by standing in the generator he uses to rebuild his hit points. But now the levers to destroy the generators cannot be used so I cannot destroy them. Any ideas?

I had a hell of a time just getting to that point because some bug kept tossing me out of Raze's area after I talked to him so I was outside the locked gate. Since I had previously used the key I couldn't get back in. I managed to get by that one by immediately running toward Raze after I finished talking to him but now I'm stuck again with these non-destructing generators. buggy buggy.