How do you reset the lock to use combination for sentry 1380?

To reset the Sentry 1380 lock to use a combination, first, ensure the lock is in the unlocked position. Next, locate the reset button on the back of the lock; you may need a small tool to press it. While holding the reset button, set your desired combination by turning the dials, then release the reset button to save the new combination. Finally, test the new combination to ensure it works correctly.