Originally Posted by JohnDThompson

Yes, but removing the cogs is a good deal easier than completely rebuilding the freewheel. All you need is a freewheel vise and a chain whip. Or, if you want to service it on the wheel, just two chain whips. One to hold the freewheel steady and the other to unthread the smallest cog so you can slide the splined cogs off the body and expose the oil port.