I need to fix leaking kohler kitchen faucet model 12172, leaking from o'rings, how do I take faucet apart and how do I replace the o'rings?

Is this your unit? Kohler Plumbing (http://www.kohlerserviceparts.kohler.com/ServicePartsPage.aspx?DocumentID=5dc12c290eca40d7a 7ba9df79ba423aa&ModelID=841fa480bbe64568899fc185ae76ea81)

Can't seem to download the flash player to view the unit. It is a kitchen faucet K-12172 with a sprayer off to the side

Try googling kohler kitchen faucet model 12172 directly from your computer, I am fairly certain this is your uint.