You have to turn ALL the fuel pumps ON. Then you will need to figure out which fuel pump switch goes with which tank, so you can turn the ones to the empty tanks OFF. I also think that some are fuel flow valves that need to be opened too. I'm still working on figuring it out at the moment.

This is where you find the information:    ‘B-52 Driver’ FLIGHT MANUAL Part II – Aircraft and Systems, page 23, 38. FUEL SYSTEM MANAGEMENT PANELS

Mark