How to Change a Combination for a Locker Lock

Written by gail delaney
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How to Change a Combination for a Locker Lock
You can reset the combination on a locker lock. (Combination Lock image by Mario Ragsac Jr. from

Sometimes the wrong people can find out your locker combination. If you want to store valuables or money in your locker, you want the things to remain safe until you take them out. Instead of running out to buy a new lock, you can simply change the combination of your locker lock with a combination of your choice. As long as you can open the lock and have a reset tool, you are on your way to changing the combination to the numbers you want. This works for Master Lock models 175, 176, 177 and 178. 

Skill level:

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Things you need

  • Reset tool

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  1. 1

    Open your lock using the current lock combination. Leave the shackle in the open position or you cannot reset the combination.

  2. 2

    Examine the lock and look for a hole on the side. Insert a reset tool into this hole as far as possible and turn it 90 degrees. You can turn it either to the left or right.

  3. 3

    Leave the reset tool in the lock while you turn the wheels to the combination of your choice.

  4. 4

    Turn the reset tool back and remove it from the lock. You lock is now set to work with your new combination.

Tips and warnings

  • Before putting the lock back on your locker, test it first to make sure that it works.
  • Remember your new combination.

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