battery & 7way Junction box

zorro

I’m trying to track down a possible electrical short in our TAB. Does anyone know how to open the junction box that’s under the trailer? This is a little black box that the power lead from the battery goes into & the 7 way cable. I’ve remove the two 10mm screws, but the box will not open.  Is there a trick to it? Any help would be appreciated. I need to test the red power lead to see if there is current too & from the box.

Nomad

Just need to pry the cap off. I used a small screwdriver. A rock knocked a hole in mine so took it off to repair. There's pics in this thread...
Check Your Bottom - http://tab-rv.vanillaforums.com/discussion/2619/check-your-bottom/p1

zorro

Thank you for your help and all the other people on the form. Now I've tracked down one problem. I am not getting any power from the battery to the junction box. The installation around the 30 amp fuse connection is cracked and maybe damaged.

Nomad

Hopefully that's it - Sounds like a somewhat easy thing to fix.