30amp Plug on Oliver

[John Dorrer]

I decided to check the backside of the 30amp plug under the rear dinette seat.. I want to check and make sure the wiring screws were tight. Someone else did this and it looked easy. I'm electronically challenged. First, I tried regular and metric Allen wrenches

 I could seem to find one that fit and I couldn't budge the Allen screw. Need someone to walk me through the steps. The lower screw appears to go through the power cord. What does the Allen screw do and what is the larger screw do? Any help would be appreciated. Sometimes it is better to not open Pandora's box. Any help on what needs to be done and how would be greatly appreciated.

[Wandering Sagebrush]

Lordy God!  I’m having a hard time seeing detail in the zoomed in photo, but the top screw appears to be an apex head, and I hate them with a passion.  It’s like a Phillips, but the center point is offset.  
 

The bottom might be a square drive, but again there isn’t enough detail when I zoom in.

[John Dorrer]

Regular screw for the bottom one. I hate those screws with a passion. I'll try and get a better picture.

[MAX Burner]

They both look like (maybe) #2 Phillips screws. The bottom screw may secure the cord itself to the plug assembly.  The center screw likely removes the cap to expose the individual 30Amp wire connectors.

[Geronimo John]

55 minutes ago, MAX Burner said:

They both look like (maybe) #2 Phillips screws. The bottom screw may secure the cord itself to the plug assembly.  The center screw likely removes the cap to expose the individual 30Amp wire connectors.

Using a DeWalt Impact Driver would be my tool of choice.

GJ