Setting Combination Lock On Master Lock Safe Space Portable Storage Box

Updated 05/26/2017 | Published 05/25/2017

Question:

I FORGOT MY PASSWORD FOR MY MASTERLOCK 5900d AND NEED TO OPEN IT I am leaving TONIGHT and need my phone

asked by: Logan B

Expert Reply:

For your Master Lock Safe Space Portable Storage Box with Combination Lock # ML5900D, there is no way of knowing the combination if it is forgotten. Unfortunately there is not a master reset to open a locked box.

If the box is new or if the case is open, you can set the combination by doing the following:
Open the protective cover to reveal the combination dials.
Rotate the dials to the default combination (0-0-0-0).
Push the door-release button to open the case.
Locate the light gray "set combination" lever on the top of the combination lock on the left-hand side. Move the lever to the right and hold the lever in place.
While holding the lever, move the dials to set your new combination.
Release the lever. The safe will now unlock with the new combination.

expert reply by: Jason S