Change Key Lock Combination

Insert change key into the holes on the back of the lock.

Change key lock combination.

Remove dust cover plate to access change key holes. With dials at 0 0 0 pull out shackle. Picking the lock cylinder is not a reliable way to continue to change these style of locks. Fortunately master lock offers a way to change the combination on most of its models.

Keep the third number on the change mark and turn the change key a quarter rotation back in the clockwise direction. If done correctly you should see the button flash at which point the unit will beep three times and you would then enter your old four digits lock key code twice to confirm. If you are looking for information on how to change a combination lock by removing it and using a different lock device call a locksmith. Changing a lock s combination.

This tutorial is specific to one of the most common master lock padlocks model 646 and similar versions. To delete the old combination press schlage button and number 2 at the same time to trigger the combination change setting. Enter the existing combination and retract the bolt. I went to send a special thanks the folks at kingman security for their customer support and for sending out a replacement key right away.

Turn shackle counterclockwise 90 1 4 turn and press it down. The new combination can now be used to open the safe. Some dial locks require that a key be placed into the back of the lock to move it to a neutral mode so a new combination can be accepted. The usps lost the original package.

Numbers will appear on the lcd display screen when the lock is powered up. Enter a new three number combination using the changing index dialing as follows. Insert change key into key hole on the lock s cover. Change combination lock vs.

Set the dials to your own combination. This change key will also work in ilco kaba ilco ilco unican 67 series three wheel combination locks 673000 675000 67 021 this change key is not for star amsec round doors or any mosler lagard or diebold lock products. Turn dial left until the first new number aligns with the changing index the fourth time. Change key must be completely inserted.

Release container locking bolt if necessary. This key worked flawlessly to change the combination for my s g r6700 safe lock. Continue pressing shackle and turn another 90 1 4 turn. Once you know the location of your lock s change position most manufacturers make theirs either 11 o clock or 1 o clock on the dial you are ready to change the combination on the lock.

It is easy to forget the combination to a lock. There are also others it does not work in. Within 30 seconds anyone can reset the numeric code. This process should not be handled without a change key.