Thanks to Nick and Stan for reply on first post. In the 3rd bay is where I have all my utilities and may have to remove my tanks to get to the regulator. Stan, the only cover that I remember is the one covering the air tank. Is this the one that you are referring to ?When I look at the rear bulkhead from the outside, in front of the drive wheels, I cannot see where the regulator may be. Thanks for any and all help.
Should be at top in corner where the tunnel holds all your air lines and cables. Normally it is a cover that is hinged with vent holes. My fresh water tanks is in last right bay and I fixed so I could drain and remove if I need to get to voltage regulator. Good Luck, Charlie