Take note of the first number in the combination. This will be the first number you must select when you begin spinning the padlock's dial. Review or remind yourself of the second and third numbers as well.
Turn the lock dial clockwise for three full revolutions. After the third revolution, carefully stop spinning the dial on the first number in the combination sequence.
Turn the dial counter clockwise. Continue turning the dial until you pass the first number in the sequence and then stop on the second number.
Turn the dial clockwise again. This time, stop when the dial reaches the third number in the sequence. Do not pass the number.
Pull the lock downward. This should disengage the shackle from the body of the lock. If the lock doesn't open, check the combination and repeat the steps from the beginning.
Examine your lock carefully. Locate an engraved serial number on the body of the lock. The number may also be painted or inscribed in some other way. Take note of the serial number location.
Review the documentation that came with the lock. It will provide instructions for proving that you are the owner of the lock and serial number you identified. For instance, if you are using a Master Lock, you will be required to complete a Lost Combination Form and have it notarized by a Notary Public. You can typically find a Notary Public at local banks, law offices and document stores. You will need an ID when using a notary's services, and they may charge a small fee ($2 in New York state as of 2011).
Send the necessary documentation to your lock manufacturer. When you receive your new combination from the company, memorize it and then store the number sequence in a safe place.
