How do you prime fuel system of Kenworth with cummins power plant?

The question is WHICH Cummins engine? Either there'll be a hand pump on the left hand side of the engine, which you'll have to unscrew and pump manually, or it'll do it electronically... if you put on dry fuel filters, you might have to turn the ignition switch on, let it prime for a couple minutes, and repeat that process a couple times.