Combination padlocks are locks that open with a code. Some padlocks come without a code, so you can set your own, while others come with a default code. It is recommended to change your code several times while using a padlock to better secure your items. If you are ready to change your padlock's code, whether it came with a default code or not, all you need is the current code.
Unlock the combination padlock.
Turn the shackle away from the hole it locks into. Stop when you hear a click.
Enter the new combination. Write it down to make sure you don't forget it.
Lock the combination padlock.
Unlock the combination padlock using the new combination to make sure it works properly.
Some combination padlocks have a tiny reset hole on the back side of the lock. You can reset it by sticking a paper clip in the hole until it clicks.