How to Reset Master Lock No. 175 and 176
How do I set or reset a Master Lock "Set-Your-Own" Combination?
What are “Set-Your-Own” combination locks? Combination locks use rotary dials to unlock when in a specified sequence. With “Set-Your-Own” combination locks the user is able to define their own combination when the lock is open. This eliminates the common problem of lost keys. Common “Set-Your-Own” combination locks are the Master Lock 175 and 176. The Master Lock 175 and 176 are brass combination locks. Brass locks are a common choice for areas that have harsh weather or during the rainier seasons because it is a metal alloy made of copper and zinc; which makes these locks very durable. Brass locks are one of the most economic choices for your security needs, and due to the alloy’s durability brass padlocks are ideal for caustic, marine environments. The Master Lock 175 and 176 are nearly identical. The main benefit from purchasing a 176 is that it has a control key override just in case you don’t have the combination.
Resetting Master Lock No. 175 and 176 To reset the 175 and 176 you will go through the same process using the K175 reset tool.
1. Open the lock with the factory set (0-0-0-0) or the previously set combination. The lock must be set to the current combination, or you cannot reset it.
2. Insert reset tool (enclosed in package) in the hole on side of lock. Push reset tool in and turn 90 degrees (in either direction). Reset tool automatically stays in this position.
3. With the change tool still in the lock, set wheels to your desired combination.
4. Turn the reset tool back 90 degrees and remove. The Lock is now set to your new combination.
Now your lock should open when you put in your new combination. Make sure to save your unique combination at MasterLockVault.com or download the app to ensure you never lose your combinations again.