How To Change Combination On Master Lock With Key

Rotate the dial three times counterclockwise to the left.

How to change combination on master lock with key. Rotate the dials to the current combination. Insert the special key into the keyhole in the side of the master lock 175 combination lock and push the key all the way in. If the lock box has never been used before the combination is factory set at 0 0 0 0. Press down on the release button and pull the compartment door open.

Rotate the dial to the left counterclockwise so that the first number of your old combination stops on you locks change position either 11 oclock or 1 oclock on the dial. Open lock with the factory set or previously set combination. Step 3 turn the key 90 degrees in either direction. The lock must be set to the current combination or you cannot reset it.

Fortunately master lock offers a way to change the combination on most of its models. This tutorial is specific to one of the most common master lock padlocks model 646 and similar versions. Open shutter door to access the combination dials and the release button. Insert reset tool enclosed in package.

It is easy to forget the combination to a lock.