m.e. no lubing the crank.
Perhaps the chain, but after 3 weeks it probably doesn't need it. If you insist, clean chain, put a drop on each pin. Let it sit there for at least 30 minutes and then wipe the outside of the chain clean
The quick and easy way to clean the chain. spray it with WD 40, Simple Green, or your favorite degreaser and then while grabbing the chain with a rag, spin the crank backward.