Master Lock 646T Padlock

646T Master Lock set your own combination padlock.

This lock is preset at the factory to open at 0-0-0. To set your own combination:

1. With dials at 0-0-0, pull out shackle.
2. Turn shackle counterclockwise 90 degrees and press it down.
3. Continue pressing shackle and turn another 90 degrees.
4. Set the dials to your own combination.
5. Turn the shackle clockwise back to the original 90 degree position. Lift and return shackle to the closed position.

manufacturer website - http://www.masterlock.com/