How to add an Animation to an npc?

Like if I build a model of a Blacksmith and want him to always be swinging his hammer. I made the Animation and every, how would I put this animation into him, the Wiki didn't help much. All help is appreciated.

Use this: http://www.roblox.com/Animation-Maker-V-3-item?id=120242512 then import it over into the Blacksmith.