1998 F 53 fuel pump troubleshoot (update) Pace Arrow

Im trying to see if i have voltage to the fuel pump , I know its a fuel issue because it fires right up on starter fluid,this is the first time ive ever worked on this system,Im trying to find out how the fuel system works, does it supply continuous voltage to the pump or just momentary? Also trying to figure out the power route, does it go from Ign switch to relay then fuse to the inertia switch then the pump?Just trying to check all windows before i drop the tank for nothing. The M/H didnt quit on me , It just wouldnt start in the driveway after sitting for about a month and a half. Thanks,Jason