Ok first you find a small flat tool that will remove the two plastic covers on the cranks. Remove. Then you remove the pedals. Then remove the two 14mm nuts from inside the cranks. Then You will find you need some special tool you dont have that screws into the crank and pushes the crank arm off. SO you grab your trusty porta bandsaw. The first cut is made on the bottom tube....the next cut is to the bottom of the seat post ...the last cut is the chainstays....Voila you have sucessfully removed a Schwinn 3 piece crank. :lol: :lol: :lol: :lol: :lol: :lol: :lol: :lol: :lol: :lol: :lol: :lol: