Who ever owned my rv before must have used epoxy or that red lock tite on the 4 screws that hold the a/c cover on because I used a big phillips head screw driver and cant budge them. I mean I have nev...
I have used an 18V cordless drill set on its highest torque setting with a good screw driver bit on screws that I could not loosen by hand. Drill has much more "immediate" torque than can be applied by hand.