He's want to take off the fan bolt for this disassembly procedure, which i guess isn't neccesary if you have a good tool to remove all the waterpump bolts:
Remove shroud and fan
Remove serp belt
Remove pulley from fan hub, water pump, and power steering pump
Remove belt tightener, incl tightener bracket
Remove remaining bolt holding power steering pump to accessory bracket (the other bolts were removed when the tightener bracket was removed)
Loosen bypass hose clamps and procede with removing waterpump bolts.
In a nutshell, that's how the pump would need to come off unless you can access the waterpump bolts without removing anything.