How to Unlock a Master Lock
- Turn the dial at least three rotations clockwise first, just to make sure it is clear.
- Apply pressure on the shackle, which is the curved handle at the top of the padlock.
- Find the first sticking point.
- Release the shackle tension and turn the dial clockwise slightly past the first sticking point. ...
- Turn the dial to the right at least three times.
- Stop on the first number in the combination. ...
- Turn the dial to the left a full rotation so you go past the first number, in this case, 2, and stop on the second number in the combination.
How do you Crack a Master combination lock?
Method 2: Cracking A Combination Master Lock
- TURN THE DIAL. Spin the dial on the combination lock three complete times in a row in order to clear out the combinations.
- PRESS UP ON THE SHACKLE. Start turning the dial clockwise while keeping that pressure on the U of the lock. ...
- FINDING THE STICKING POINT. ...
- LET TENSION OFF. ...
- PUT TENSION BACK ON. ...
- FIGURING OUT THE 3RD NUMBER. ...
- LET’S DO A LITTLE MATH. ...
How do you unlock a Master Lock?
How do you unlock a 3 digit combination Master Lock? Turn the lock until the numbers read right-side-up. Roll the left-most dial until the first number of your combination lines up with the scored hash mark just to the left of the dial.
How do you open a combination Master Lock?
Method 1 Method 1 of 2: When You Don't Know Your Master Lock's Serial Number
- Turn the dial at least three rotations clockwise first, just to make sure it is clear. Turn the lock's dial clockwise to zero.
- Apply pressure on the shackle, which is the curved handle at the top of the padlock. Turn the dial clockwise (CW) slowly as you press the shackle.
- Find the first sticking point. ...
How do you reset a Master combination lock?
- Open the lock using the previous combination. …
- Insert the reset tool in the hole on the side of the lock. …
- Push the reset tool in and turn 90° in either direction. …
- Set wheels to your new combination.
- Turn and remove the reset tool.
How do you unlock a master lock when you forgot the combination?
0:045:59How to Crack Your Master Lock Combo in 3 Easy Steps - YouTubeYouTubeStart of suggested clipEnd of suggested clipSo you need to apply just the right amount of pressure because right now I'm applying no pressureMoreSo you need to apply just the right amount of pressure because right now I'm applying no pressure and you see it rotates pretty easily. If I applied too much pressure then it's very hard to turn.
How do you unlock a 3 digit Master combination lock?
0:293:56How to Reset the Combination to a 3 Digit Master Lock - YouTubeYouTubeStart of suggested clipEnd of suggested clipIt is usually set to a code one zero zero now the one is just there just to keep it locked. It'sMoreIt is usually set to a code one zero zero now the one is just there just to keep it locked. It's actually the code it comes with is the zero zero zero.
Can you reset Master Lock combination?
This depends on whether or not the Master Lock in question is a "resettable" lock. It also depends on whether it is in the open or closed position...
How do you open a master lock combination?
If you know the code, place the lock so the combination dial faces you. Then, turn the combination to the right three times but on the third time,...
How do you reset a combination padlock?
For help with resetting a combination padlock, see the manufacturer’s instructions first, to be sure you’re using the right technique for your padl...
Can you pick a combination lock?
It’s possible but you’ll need to try a few different ways and there are no guarantees, especially not if you have to destroy the lock in the proces...
I've lost or forgotten the combination to my Master Lock lock. What can I do?
Does your Master Lock lock have a serial number? If it doesn't, we won't be able to help you find your combination because we don't have a record o...
I lost the combination to my Master Lock Set-Your-Own Combination lock. Can you help me reset it?
Unfortunately no. You cannot reset this lock without knowing the current combination. You'll likely need to purchase a new lock.
I accidentally reset the combination on my Master Lock resettable combination lock. Now I don't know...
Unfortunately, you cannot reset this lock without knowing the current combination. You'll likely need to purchase a new lock.
I've lost the reset tool for changing the combination on my lock. How can I get a new one?
As a courtesy, our customer solutions group can issue you a replacement tool free of charge. You will need to supply the model number or an image o...
How can I retrieve my lost combination when my Master Lock lock is attached to a bike, cabinet, lock...
We will not provide lost combinations if the lock is attached to anything.
I'm unable to get a legible photocopy of my lock for the Lost Combination Form. What should I do?
Try lightening the copy as much as possible. The most important thing is that we can see that the lock is not attached to something.
How do I set the combination on my Master Lock 5400D / 5401D Key Safe?
To set or reset the combination on your Master Lock 5400D / 5401D Key Safe: Open the compartment door by entering the combination. The factory-set...
How do I set the combination on my 5422D / 5423D Push Button Lock Box?
To set or reset the combination on your 5422D / 5423D Push Button Lock Box:Open the lock box by entering the combination. If you're setting the com...
How do I set the combination on my 5424D / 5425D Spare Key Storage Safe?
To set or reset the combination on your 5424D / 5425D Spare Key Storage Safe: Open the compartment door by entering the combination. The factory-se...
How do I set the combination on my Master Lock 5406D Spare Key Storage Safe?
To set or reset the combination on your Master Lock 5406D Spare Key Storage Safe: Open the compartment door by entering the combination. The factor...
Lost Combinations
I've lost or forgotten the combination to my Master Lock lock. What can I do?
Resetting the Combination on your Key Safe, Mini Safe, & Portable Safes
How do I set the combination on my Master Lock 5400D / 5401D Key Safe?
Resetting your Combination Lock
How do I set or reset the combination on my 175 / 176 / 177 / 178 Master Lock Set-Your-Own Combination Lock?
What is a master lock?
Master combination locks are used to secure lockers at school, work or the gym, as well as shed doors and equipment chests. If you forget the combination and can't find where you stored the information sheet that came with the lock, you have a couple of options. You can either send the lock to Master Lock and wait several weeks to get ...
How to change the dial on a Master Lock?
Step 1. Move the Master lock's numbered dial clockwise; spin the zero past the indicator arrow for three consecutive passes. On the fourth pass, leave the zero under the arrow. Pull the shackle clasp up, which will make the dial stick and somewhat difficult to move.
How to get the first number of a combination?
Start going through the numbers on the dial, one number at a time, until you find the first number of your combination. Spin the dial clockwise twice past zero, enter the first number on the dial that is not two or six more than the second number, turn the dial counterclockwise past zero to the second number, and then turn it clockwise past zero ...
2. Clear the Lock
The thumb rule for cracking any lock is to establish a standard point from which you can launch your cracking process. When it comes to the master lock, the starting point is clearing the lock. To clear the lock, you should start by spinning the dial a minimum of three or four times, ensuring you pass the zero mark every time.
3. Crack the 3rd Number in the Combination
After clearing the lock in the cracking procedure, the next step is to look for the 3rd number of your combination. This may sound a little bit odd. You could be wondering why not start by cracking the first number in the combination.
4. Find the 1st Sticking Point
While rotating the lock’s dial in the anticlockwise direction as per the step above, you will find yourself reaching a point where you cannot rotate the dial freely. You will notice that the dial is stuck in a groove between 2 numbers.
5. Find the 2nd Sticking Point
Having found the first sticking point, our next objective is to get the second one. To achieve this, you have to start by releasing the shackle tension and then turning the dial slightly clockwise past the 1st sticking point, 6 or 6.5 in our example above.
6. Find the Rest of the Sticking Points
Having obtained two of the twelve sticking points, you need to look for the remaining ten by repeating the same procedure to crack the 3rd number in the combination. Ensure that you record all the sticking points as you had done with the first two.
7. Crack the 1st Number in the Combination
As aforementioned, cracking the other numbers leaves you with ten possibilities. To begin with, you have to divide the distinct number or the third number by four. In our case, it is dividing 29 by four. When you have divided, your concern shall be the remainder which is 1.
8. Crack the 2nd Number in the Combination
Having cracked the first number, you should be able to crack the 2nd number. To crack the 2nd number of your combination, you go back and check the remainder you used in the above step. In our case, the remainder was one. You are supposed to add two to one (1+2).
Where is the model number on a master lock?
The model number of your Master Lock can be found on the back of the lock. If by chance your lock's model number begins with 800 or 908, this method of combination cracking may not work.
How to rotate a lock?
Begin by applying a tense pulling force on the shackle of the padlock. A great method of doing this is to grasp the lock in one hand while using a finger to push upward on the shackle. While maintaining this upward pressure on the shackle, begin to rotate the dial slowly in the counterclockwise (left) direction.
How to reset a master lock?
Master Lock Reset. To reset a combination lock, such as those made by Master Lock, you'll first need to find its serial number. Contact the manufacturer of the lock with this information . You'll most likely need ID and proof of purchase, particularly if the lock is attached to a box or safe. The manufacturer will be able to reset the combination ...
What side is the lock mechanism on?
The locking mechanism will be on the left-hand side. You'll need to exert some pressure on the lock's latch – enough so the dial can turn, but not so much that it spins freely. This tension is essential in order to feel when you hit the right number of the combination and the mechanism engages. Advertisement.
How to change a latch?
It's best to start clockwise and then change to counterclockwise. What's most important is remembering which direction you started with. Turn the dial. If it never catches, you haven't put enough pressure on the latch. If it's clicking at every number, you've put too much pressure on the latch.
Where do you put a shim on a lock?
They usually come with specific instructions. Generally, they're inserted into the left-hand side of the lock's latch and trick it into coming open. Shims don't tend to work on newer locks, however, and can end up damaging the mechanism instead. Advertisement.
Can you use combination locks on cupboards?
By Annie Walton Doyle Updated August 30, 2018. Hunker may earn compensation through affiliate links in this story. Combination locks can be used on cupboards, boxes and safes to secure valuable or important goods inside. However, trouble can arise if you forget the combination code to unlock it.
Can you break a combination lock with brute force?
While most manual combination locks can be broken using brute force, this takes a lot of time and energy, and for good reason. Luckily, there are other ways to open a combination lock when you don't remember the combination. Advertisement. How to Unlock a Combination Lock Without Knowing the Combination.