Frequently Asked Questions

Q: How do I set or reset a Master Lock combination padlock that has a resettable “Set-Your-Own” combination? I would like to reset the lock to a different combination, but have lost the instructions for this. Can you help me?

Category: "Set-Your-Own" Combination Locks Instructions

A:

Click on the PDF below that matches your lock model number for instructions on how to change/reset the combination:

Note: Once the lock is set, there is no way to open it without the combination. Please make sure you record your new combination in a safe place.

Store your combination at www.masterlockvault.com - a free service from Master Lock! The Master Lock Vault provides a safe & convenient place to store all of your confidential data for quick & easy access from your PC, iPhone, or any other mobile devices!

Q: How do I change the combination on a "Set-Your-Own" combination lock model #643D?

Category: "Set-Your-Own" Combination Locks Instructions

A:

Here are the instructions for changing the combination on your model 643D lock. This lock is preset at the factory to operate at 0-0-0-0.

  1. With dials at 0-0-0-0, pull out the shackle.
  2. Turn shackle 90 degree (1/4 turn) so notch on shackle is aligned with notch in lock body.
  3. Press and hold the shackle down.
  4. Set the dials to your own combination by lining up middle of numbers with red stripe.
  5. Lift and return the shackle to closed position.
  6. Scramble the dials to lock.

Note: Be sure to record your NEW combination as you are the only one that knows it!

Store your combination at www.masterlockvault.com - a FREE service from Master Lock! The Master Lock Vault provides a safe & convenient place to store all of your confidential data for quick & easy access from your PC, iPhone, or any other mobile devices!

Note: The lock may only be reset when it is in the open position. If you do not recall the combination the lock is set to, you will not be able to reset the combination.

Q: How do I set or reset the combination on a "Set-Your-Own" combination padlock model 175, 176, 177 or 178?

Category: "Set-Your-Own" Combination Locks Instructions

A:

Models #175, 176, 177 and 178:

  • Open lock with the factory set or previously set combination. The lock must be set to the current combination, or you cannot reset it. Note: the shackle must be in the open position to reset the combination.
  • Insert reset tool (enclosed in package) in hole on side of lock.
  • Push reset tool in and turn 90 degrees (in either direction). Reset tool automatically stays in this position.
  • Set wheels to desired combination.
  • Turn and remove reset tool. Lock is now set to new combination.
  • Record your new combination in a safe place.

Store your combination at www.masterlockvault.com - a FREE service from Master Lock! The Master Lock Vault provides a safe & convenient place to store all of your confidential data for quick & easy access from your PC, iPhone, or any other mobile devices!

Q: How do I set or reset a Master Lock luggage lock that has a resettable “Set-Your-Own” combination? I would like to reset the lock to a different combination, but have lost the instructions for this. Can you help me?

Category: "Set-Your-Own" Combination Locks Instructions

A:

Click on the PDF below that matches your lock model number for instructions on how to change/reset the combination:

Note: Once the lock is set, there is no way to open it without the combination. Please make sure you record your new combination in a safe place.

Store your combination at www.masterlockvault.com - a free service from Master Lock! The Master Lock Vault provides a safe & convenient place to store all of your confidential data for quick & easy access from your PC, iPhone, or any other mobile devices!

Q: How do I open or reset my TSA Approved Master Lock Travel Sentry Certified lock Model # 4680DBLK or # 4680DNKL?

Category: "Set-Your-Own" Combination Locks Instructions

A:

View instructions on how to change/reset the combination for your TSA Approved Master Travel Sentry™ Certified lock.

Note: Once the lock is set, there is no way to open it without the combination. Please make sure you record your NEW combination in a safe place.

Store your combination at www.masterlockvault.com - a FREE service from Master Lock! The Master Lock Vault provides a safe & convenient place to store all of your confidential data for quick & easy access from your PC, iPhone, or any other mobile devices!

Q: How do I change the combination on my key, mini or portable safe?

Category: "Set-Your-Own" Combination Locks Instructions

A:

Instructions for Set-Your-Own Combination Key, Mini, or Portable Safes:

Note: Once the lock is set, there is no way to open it without the combination. Please make sure you record your NEW combination in a safe place.

Store your combination at www.masterlockvault.com - a FREE service from Master Lock! The Master Lock Vault provides a safe & convenient place to store all of your confidential data for quick & easy access from your PC, iPhone, or any other mobile devices!

Q: Can Master Lock keep a record of my combination or key number for me?

Category: Lost Keys & Key Replacement

A:

Master Lock provides an exciting online tool called masterlockvault.com that allows you to store up to five combinations and/or key numbers in a secure database. You can access your combos 24 hours a day, seven days a week.

Q: I've forgotten the combination to my standard dial combination lock. How do I obtain the combination for personal use?

Category: Lost Combinations

A:

A) My lock does not have a serial number:

To provide enhanced long–term security, Master Lock has discontinued imprinting a serial number on the lock body on combination locks sold through retail locations. For greater convenience, we encourage consumers to store their combination at our secure website, Masterlockvault.com, which is easy to use and offers 24/7 access. Unfortunately, we are unable to provide combinations for non–serialized locks. Please see examples of a serial number if you are unsure if your lock features one.

B) My lock has a serial number:

Please see examples of a serial number if you are unsure if your lock features one.

Choose from one of the two options below to obtain your combination:

Note: Due to increased security concerns nationwide, Master Lock recognizes the heightened need for additional safety measures. We no longer provide lock combinations in response to phone, fax, or email requests.

1) Visit a Master Lock Distributor/Retailer

  • Bring the lock to a Master Lock distributor or retailer. The lock must not be attached to anything. Important: If the lock is not brought to the retailer or distributor, we will not release the combination.
  • Ask the distributor or retailer to contact Master Lock for the combination on your behalf and we will validate ownership through them. US distributors may call 1-800-308-9244. Canadian distributors may call 1-800-227-9599.
  • Please note that although Master Lock does not charge for this service, some distributors or retailers may charge a fee.

- OR -

2) Submit a Lost Combination Form

  • Confirm that your lock features a serial number prior to submitting a Lost Combination Form. Please see examples of a serial number if you are unsure if your lock features one.
  • Print out the Lost Combination Form from a Printer Friendly Page or download the PDF file.
  • Have your Lost Combination Form notarized by a Notary Public to prove you are the owner of the lock. You can include up to 6 combinations on one notarized form.
    • Note for inmates at a correctional facility: In addition to the Lost Combination Form, you must submit your request on official prison facility letterhead. In lieu of notarization, the Lost Combination Form must be signed by a prison facility official.
  • Submit your form to:
    Master Lock Warehouse
    1600 W. La Quinta Rd
    Suite/WHSE #1
    Nogales, AZ 85621
  • Once the request is received, your combination will arrive in approximately 4-6 weeks.

Store your combination at www.masterlockvault.com - a FREE service from Master Lock! The Master Lock Vault provides a safe & convenient place to store all of your confidential data for quick & easy access from your PC, iPhone, or any other mobile devices!

Q: What is the dialing sequence to open a standard combination lock?

Category: Lost Combinations

A:

Please follow the steps outlined below:

  1. Turn the dial 3 times to the right and stop on the first number of the sequence.
  2. Turn the dial to the left, pass the first number of the sequence and stop on the second number.
  3. Turn the dial to the right and stop on the third number of the sequence.
  4. Pull up on the shackle.

Q: I lost the keys for my padlock. Is it possible to obtain new keys?

Category: Lost Keys & Key Replacement

A:

It may be possible to obtain replacement keys for your padlock only if you know the key number. The key number is stamped on the original keys provided with your lock. If you do not know the key number, it is possible to obtain additional keys from a locksmith who can impression your lock. If you do know the key number, go to a locksmith or local hardware store to order keys. Please note that the locksmith will charge you a fee for this service. Not all Locksmiths, Hardware Stores or Home Centers offer this service; please phone ahead.

Q: How do I install my mounting bracket for my u-bar or cable?

Category: More Information on Master Lock Products

A:

View instructions on how to use the Universal Mounting Bracket for U-locks and cable locks.

View instructions on how for using the Mounting Bracket for U-locks.

Q: How do I set or reset the combination on my backpack lock model #1542, 1544, 1547, 1548 or 1554?

Category: "Set-Your-Own" Combination Locks Instructions

A:

Here are the instructions on how to reset the combination on your backpack lock (which is pre-set at the factory to open to combination 0-0-0):

  1. With dials at 0-0-0 (or combination the lock was previously set to), push in the shackle
  2. With shackle pushed in, set your new combination
  3. Release shackle and scramble wheels to lock
  4. Be sure to record your new combination as you are the only one who knows it!

Store your combination at www.masterlockvault.com - a free service from Master Lock! The Master Lock Vault provides a safe & convenient place to store all of your confidential data for quick & easy access from your PC, iPhone, or any other mobile devices!

Note: The lock may only be reset when it is in the open position. If you do not recall the combination the lock is set to, you will not be able to reset the combination.

Q: How do I set or reset my "Set-Your-Own" combination lock model 179LH?

Category: "Set-Your-Own" Combination Locks Instructions

A:

Here are the instructions on how to change the combination to your model #179 lock:

  • To Open: Turn each digit to "0" and depress shackle.
  • To Lock: Depress Shackle. Scramble digits.

Important: When changing to new combination, dial setting must remain on old combination!

Before leaving the factory, your combination padlock has been set to open at 0-0-0-0.

To Reset a New Combination:

  • Open Lock and expose shackle hole.
  • Leaving digit wheels on old combination, insert attached combination changing tool and press it as far as it will go. turn the combination tool 180 degrees until it is aiming at the shackle. Warning: If the combination changing tool is not fully depressed, a lost combination will result!
  • Set digits to your own personal combination and make sure the numbers are perfectly in line with the indicator.
  • Return combination changing tool 180 degrees and remove.
  • Depress shackle. If shackle cannot return to locking position, the change of combination is not successful. Adjust the dials so that they are lined up exactly with the indicator.
  • Spin the dials.

Note: Please make sure you record your NEW combination in a safe place since you are the only one that knows it!

Store your combination at www.masterlockvault.com - a free service from Master Lock! The Master Lock Vault provides a safe & convenient place to store all of your confidential data for quick & easy access from your PC, iPhone, or any other mobile devices!

Q: How do I change the combination on a "Set-Your-Own" combination lock model #643DWD?

Category: "Set-Your-Own" Combination Locks Instructions

A:

Here are the instructions for changing the combination on your model 643DWD lock. This lock is preset at the factory to operate at P-L-A-Y.

  1. Decide on your new 4 letter combination - choose from suggestions on reverse side or create your own.
  2. With dials at P-L-A-Y (middle of letters should be aligned with red stripe), pull out the shackle.
  3. Turn shackle 90 degree (1/4 turn) so notch on shackle is aligned with notch in lock body.
  4. Press and hold the shackle down.
  5. Set the dials to your desired combination by lining up middle of letters with red stripe.
  6. Lift shackle, return to closed position and hold shackle down while scrambling letters to lock.
  7. To re-open lock, set dials to your combination and lift shackle.

Note: Be sure to record your NEW combination as you are the only one that knows it!

Store your combination at www.masterlockvault.com - a FREE service from Master Lock! The Master Lock Vault provides a safe & convenient place to store all of your confidential data for quick & easy access from your PC, iPhone, or any other mobile devices!

Note: The lock may only be reset when it is in the open position. If you do not recall the combination the lock is set to, you will not be able to reset the combination.

Q: How do I set or reset the combination on my "Set-Your-Own" combination bike or cable lock?

Category: "Set-Your-Own" Combination Locks Instructions

A:

Please look for specific directions under the model number of your lock.

Model #8114:

  • Open the lock & withdraw the cable.
  • Turn the collar (circular, ribbed & in front of the combination wheels) - clockwise until it stops (about halfway around).
  • Set the combo wheels to your desired combination.
  • Turn the collar counterclockwise until it stops at its original position.
  • Record your new combination in a safe place.

Model #8119 and 8122:

  • The lock is preset to open at 0-0-0-0.
  • Set the combination dials to 0-0-0-0 and withdraw the cable.
  • Turn the knob 90 degrees in clockwise direction to the designated position.
  • Reset the combination dials to the desired combination, making sure the numbers are lined up with the marks on the case.
  • Once you have selected your combination, turn the knob back to the original position in a counterclockwise direction.
  • Store your combination at masterlockvault.com

Model #8280 (Pro-Sport):

  • Press the button and remove u-bar from lock body.
  • Open the anti-dust cover and align the opening combination to the guide points.
  • Push the red button towards notch in body. Hold down (there should be a clicking sound).
  • Turn the dials to your desired combination.
  • Pull back reset button to its original position. The lock should now be reset to your new combination.
  • Record your new combination in a safe place.

Store your combination at www.masterlockvault.com - a free service from Master Lock! The Master Lock Vault provides a safe & convenient place to store all of your confidential data for quick & easy access from your PC, iPhone, or any other mobile devices!

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