Hi Richard
According to the manual the pressure should be 2 bar to 2.5 bar (~30 to 37 psi) at 1000 rpm at 60-65 degrees C. So yours is a bit low compared to spec.
However – if it’s not making knocking noises I wouldn’t worry about it. Davy’s and Alistair’s experiences seem to bear that out. Keeping the oil topped up to the maximum mark will allow the pump to deliver its best pressure.
Chris
Chris