To set or reset the combination on your Master Lock 1520D, 1523D, 1524D, or 1534D lock:
- Open the lock and remove the shackle.
- Pull off the metal end cap.
- Remove all combination wheels.
- Make sure the red marks remain aligned with the Master Lock logo. Install the wheels so your new combination aligns with...
- Snap the metal end cap back into place. If the end cap isn't...
How do you set a Master Lock combination?
“Set-Your-Own” Combination Locks Instructions FAQ Open the lock (preset at 0-0-0). Turn shackle counterclockwise 180 degree and press it down. You must hold the shackle down while performing the next step. Set the dials to your new combination. Lift and return the shackle to the closed position. How do you unlock a 4 digit Master Lock?
How do you open a Master combination lock?
A Master Lock 175 is a basic shackled combination lock.Several blows from a ball peen or small sledge hammer will wrench the shackle loose internally and force the lock to open.If the lock is not going to used again , then simply cutting its shackle with bolt cutter will work.
What are possible combinations for Master Lock?
how a combination lock (padlock) works. This will make this entire process make more sense so that it's a lot easier to memorize. Note that there are 64,000 possible combinations on a master lock (0-39 makes 40 possible values on each digit, there are 3 digits). This is a little inaccurate
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 open a Master Lock combination locker?
What is the dialing sequence? To open a standard Master Lock combination lock (1500D): Turn the dial 3 times to the right and stop on the first number of the sequence. Turn the dial to the left, past the first number of the sequence, and stop on the second number.
How do you set a Master Lock combination?
To set your own combination:With dials at 0-0-0, pull out shackle.Turn shackle counterclockwise 90° and press it down.Continue pressing shackle and turn another 90°.Set the dials to your own combination.Turn shackle clockwise back to the original 90° position.Lift and return shackle to closed position.
How do you reset a Master Lock box if you forgot the combination?
1:202:58[969] A Faster Method: Decoding the Master Lock 5400D Key BoxYouTubeStart of suggested clipEnd of suggested clipWhat you do is take a thin pic reach between the code wheels and the lock body hook. Behind thatMoreWhat you do is take a thin pic reach between the code wheels and the lock body hook. Behind that fork and pull it into the back of the code wheels.
How do you reset a 3 digit Master Lock If you forgot the combination?
2:163:56How to Reset the Combination to a 3 Digit Master Lock - YouTubeYouTubeStart of suggested clipEnd of suggested clipSo I rotate it 90 degrees I press it down keeping it down so I'm putting tension on that littleMoreSo I rotate it 90 degrees I press it down keeping it down so I'm putting tension on that little spring here so I keep it down and now I could change the combination.
How do you reset a 4 digit Master Lock?
0:001:16Reset the 4 Digit Master Lock Code - YouTubeYouTubeStart of suggested clipEnd of suggested clipSo now what you'll do is open it up and turn it what is that ninety degrees. And push it down andMoreSo now what you'll do is open it up and turn it what is that ninety degrees. And push it down and you'll see there's a tiny little piece of metal. There. You if you're able to push that down.
How do you reset a master lock code?
0:211:36How to Reset Master Lock No. 175 and 176 - YouTubeYouTubeStart of suggested clipEnd of suggested clipIf this is a brand-new lock open it using the combination zero zero zero once your lock is open youMoreIf this is a brand-new lock open it using the combination zero zero zero once your lock is open you can insert your reset tool which came with your lock.
How do you reset a 4 digit combination lock if you forgot the code?
0:285:33How to Crack the Code & Open a Combination Padlock - YouTubeYouTubeStart of suggested clipEnd of suggested clipKeep some tension on the shackle and rotate to the dial until we feel a change this time numberMoreKeep some tension on the shackle and rotate to the dial until we feel a change this time number eight feels a lot looser.
How do you unlock a combination lock when you forgot the combination?
To open combination locks without a code, start by pulling up on the dial and turning it clockwise until you hear the lock click. Then, check what number you're at, add 5 to that number, and write it down. Next, set the dial to that number and turn it counterclockwise until you hear it click again.
How do you crack a 3 digit Master Lock combination?
1:163:26Lock Picking Decode a 3-Digit Combination Master Lock - YouTubeYouTubeStart of suggested clipEnd of suggested clipOther combination locks we're gonna need to apply some tension to the shackle. And feel each dialMoreOther combination locks we're gonna need to apply some tension to the shackle. And feel each dial fall into place and we're gonna start with the one farthest away and then work our way in.
How do you open a Master combination lock with 3 numbers?
2:064:55How to Open a Combination Dial Lock - YouTubeYouTubeStart of suggested clipEnd of suggested clipAnd you're not going to skip the 18 the third time so the third number you're not skipping you'reMoreAnd you're not going to skip the 18 the third time so the third number you're not skipping you're just going to go straight to the 18. Just like that. And then the lock should just open.
How do you reset a 3 digit combination lock box?
While open, set the combination to your own unique code; or reset it to a new code. Move the locking lever from B back to A....To open a new lock box for the first time:Move all 3 digits to 0-0-0.Make sure all digits are centered on the 0 when opening.Once opened, move the locking lever from A to B on the lock housing.
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?
Q: How do I set or reset the combination on a "Set-Your-Own" combination padlock model 175EURD?
To set your own combination: (REMEMBER: Combination can only be set when lock is open.)
Q: How do I change the combination on a "Set-Your-Own" combination lock model 1520EURD, 1523EURD, or 1534EURD?
Open and withdraw shackle. Note: For first time use, position wheels so that the numbers 0-0-0-0 aligns with the Master logo.
Q: How do I set or reset the combination on a combination locker lock model?
Print or view the installation instructions for our built-in locker locks.
Q: How do I change the combination on a combination locker lock model?
View the instructions on how to change the combinations on your built-in locker locks.
Q: How do I set or reset my "Set-Your-Own" combination lock model M40EURDNUM?
Locate ‘reset’ tool on back of package. Insert tool in side of lock. Lock must be OPEN to reset.
Q: How do I set or reset the combination on my Master Lock 1550 backpack lock?
Align the dials to the previous combination. The factory-set combination is 0-0-0.
Q: How do I locate the preset combination for the 1500iEURD and then reset the combination?
The instruction sheet is located inside the packaging, in a drawer behind the plastic card. Use a pair of scissors to cut through the packaging and access the leaflet. The preset combination code is located on the upper right side of the instruction sheet.
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).