Change Key Lock Combination

It is easy to forget the combination to a lock.

Change key lock combination.

Fortunately master lock offers a way to change the combination on most of its models. The usps lost the original package. Rotate key left 90 degrees. Continue pressing shackle and turn another 90 1 4 turn.

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. Insert change key into the holes on the back of the lock. To change the combination on a set your own combination lock model 646d 647d or 646t follow these steps. Change key must be completely inserted.

This tutorial is specific to one of the most common master lock padlocks model 646 and similar versions. This key worked flawlessly to change the combination for my s g r6700 safe lock. 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. Insert change key into key hole on the lock s cover.

Enter the existing combination and retract the bolt. Turn dial left until the first new number aligns with the changing index the fourth time. Remove dust cover plate to access change key holes. Enter a new three number combination using the changing index dialing as follows.

Turn shackle counterclockwise 90 1 4 turn and press it down. Set the dials to your own combination. Dial the new combination using the change mark exactly as it was done for steps 3 4 and 5. Release container locking bolt if necessary.

To delete the old combination press schlage button and number 2 at the same time to trigger the combination change setting. There are also others it does not work in. 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. Within 30 seconds anyone can reset the numeric code.

Picking the lock cylinder is not a reliable way to continue to change these style of locks. This process should not be handled without a change key. Change combination lock vs. 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.

Changing a lock s combination. Numbers will appear on the lcd display screen when the lock is powered up. The new combination can now be used to open the safe. With dials at 0 0 0 pull out shackle.