Fuel pump pushrod?

In the middle of changing the mechanical fuel pump on my 340. Having trouble locating the pushrod that runs the pump. Shouldn't I be able to push up on the rod and slide the pump arm underneath? I slid the new pump in and it seems I have to push up on the pump with a good bit of force to get the bolts to line up...is this all I need to do? Any help would be greatly appreciated. First time doing this. Thanks guys.

The pump arm is riding on the eccentric and is probably on the high side. Just hand crank the engine over a half turn and if that doesn't do it crank about another half turn and it should go almost flush at some point. Reason for up to a full turn is the cam turns at half crank speed.