Changing the Combination for a Safe

Quck answer

To change the combination for a safe, follow these steps:

1. Open the safe using the current combination.

2. Locate the combination change mechanism, which is usually located on the inside of the safe door.

3. Enter the current combination again to activate the change mechanism.

4. Follow the specific instructions provided by the safe manufacturer to enter the new combination.

5. Test the new combination by locking and unlocking the safe several times.

6. Remember to keep the new combination in a secure place and not share it with others.

By following these steps, you can easily change the combination for your safe and ensure the security of your belongings.


Prior to using a safe to secure your valuables, it is important to change the combination. Safes are initially shipped with a default combination that is the same for all safes of a specific model. This allows retailers to open the locks for display purposes. However, it is up to the consumer to select a unique combination and keep it confidential. Although the process of changing the combination may differ depending on the model, the general procedure is similar to the instructions outlined for a Chubb three-wheel lock. Changing the combination at any time provides added security for your valuables.

Step 1

Begin by identifying the marks on the lock for opening and changing it. Chubb Lock and Safe typically uses an arrow at the top of the circle as the opening mark, and a line to the left or right of the arrow as the change mark.

Step 2

Open the door of the safe and extend the lock bolts. Once the combination has been dialed through the change mark, it can be removed.

Step 3

Rotate the combination knob counterclockwise until the first number passes the change mark three times. On the fourth revolution, align the first number with the change mark. For Chubb three-wheel locks, the factory combination setting is often 10, 20, 30.

Step 4

Turn the knob clockwise until the second number passes the change mark twice. On the third revolution, line up the second number with the change mark.

Step 5

Rotate the knob counterclockwise until the third number passes the change mark once. Stop when the third number aligns with the change mark on the second rotation.

Step 6

Insert the change key into the back of the lock and turn it a quarter turn counterclockwise. Create a new combination, ensuring that the last number is greater than 25.

Step 7

Enter the new combination using the change mark, following the same steps as in steps 3, 4, and 5. Keep the third number on the change mark and turn the change key a quarter rotation back in the clockwise direction. The new combination can now be used to open the safe.

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