Adjusting the pump pressure is really easy. It just looks more than it is.
All you need to do is remove the drip tray and remove the front panel. You now have full access to the pump adjustment.
All you need to do is loosen the nut on the adjustment screw (hold the screw in place, to prevent it from moving to keep your initial position) and adjust the pressure by turning the screw in or out. There is nothing to be intimidated about really.
Remember that with a closed P/F you will measure peak static pressure which will be higher than the shot pressure.
Sylvain L. Ouellette
Vivaldi II, Elektra MCaL, La Pavoni Europicola, Astoria Fiore lever
MXKR, Major, NS Mythos, B-Vario,
Toper Cafemino Electric and Poppery 1 roaster