The diverter should send the ball to the lock on every pass when the storage multiball locks are lit, mine was never diverting.
The diverter has an adjustable screw, (visible from right side of machine with playfield up) on my machine it required the adjustable screw to be all the way in for the solenoid to be close enough to the diverter bracket to engage the diverter, otherwise it would just buzz. I wil need to modify the bracket to make it so it doesn't affect the balls path in its resting state.
Just thought I'd put more info in this thread for the next pinsider that has this problem.