Not sure about your car, but after removing the shrowd, which I can remove from my car without taking the fan off, you may have enough clearance to get the radiator off. I would consider taking the fan off to have enough clearance.
I'll check my manual and see what it says. They don't list the removal of the fan as a peliminary step to removing the radiator.
I would thinks as previously posted removing the fan would make life easier.
good luck Joel