Correct Fan Shroud for a #2898027 Radiator 273

Once I receive the fan shroud, any tips for installation?
Cause to tighten the fan bolts without the shroud is not so easy cause of the small amount of space... but with a shroud installed is impossible... what's the trick?
Maybe to remove the fan first, put the shroud in place without tighten its bolts... then tighten the fan putting the hand between the radiator and the shroud and in the end I tighten the shroud bolts? Thanks