How to Find the Serial Number on a Master Lock
- 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. ...
Full Answer
How to unlock a Master Lock?
Things You'll Need
- Scrap paper
- Pencil
- Calculator
How to reset a Master Lock?
How Do I Reset a Master Lock
- Open the lock using the old combination. Once you open the lock,...
- Insert the reset tool into the shackle hole.
- Enter your new combination. Choose 3 letters or numbers for your combination.
- Write down the combination in a safe place.
- Use a pen or pencil to flip on...
How do I reset a Master Lock?
How do you reset a master lock if you forgot the combination? 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. Record your combination in a safe place.
How to open a Master Lock?
Step-by-Step Processes
- Break the padlock with bolt cutters. This is a quick way that people use to open a standard master lock because the diameter of the shackle will not be ...
- Open the lock with a grinding tool. It can be anything to grind metal. ...
- Open the lock with a padlock shim. ...
- Pick the lock with a paperclip. ...
Can I get combination for Master Lock from serial number?
If your lock has a serial number, you can recover your combination in one of three ways. You can visit a Master Lock Distributor / Retailer or submit a Lost Combination form. Bring your lock to the retailer.
How do you decode a Master Lock?
0:4413:41And we're going to need to let off just a hair so we can start turning the lock in order to find theMoreAnd we're going to need to let off just a hair so we can start turning the lock in order to find the sticky. Number what we're going to do is we're going to turn the dial clockwise.
How do you crack a 3 digit Master combination lock?
1:163:26Other 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.
Where is Master Lock serial number located?
A) My lock does not have a serial number: To provide enhanced long–term security, Master Lock has discontinued imprinting a serial number on the lock body on combination locks sold through retail locations.
How do you crack a 4 digit Master Lock?
0:568:18And the basic method is to pull the shackle. And pull the shackle turn the wheels search for theMoreAnd the basic method is to pull the shackle. And pull the shackle turn the wheels search for the binding wheel the one that turns the hardest.
How do you open a number lock without the code?
0:055:33Today I'm going to show you how to open one of these padlocks. Without knowing the number. I'mMoreToday I'm going to show you how to open one of these padlocks. Without knowing the number. I'm starting with this 3 dial combination lock it's about 6 centimetres tall and it feels relatively sturdy.
How do you crack a hard combination lock?
0:334:30But just push firmly. Okay now you when you start turning it to the right you're gonna feel it'sMoreBut just push firmly. Okay now you when you start turning it to the right you're gonna feel it's gonna go really slow okay and eventually. It's gonna pick up in speed. It's gonna kind of like release.
How do you reset a Master Lock without a reset tool?
This lock is preset at the factory to operate at 0-0-0-0.With dials at 0-0-0-0, pull out the shackle.Turn shackle counterclockwise 90 degree (1/4 turn)Continue pressing shackle down and turn another 90 degree (1/4 turn)Set the dials to your own combination.More items...•
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...
Step 1. Make a list of possible last numbers of the combination
Turn the dial clockwise past zero three times and leave it set to zero.
Step 2. Find the last number of the combination
In one complete turn of the dial you should have 12 numbers recorded. 7 of the numbers should be fractions ending in .5 – these can be eliminated. Of the remaining 5 the last number in the combination is the whole number with the unique ending.
Step 3. Calculate the possible combinations
Select the number you found in Step 2 into the Combination Calculator. It will calculate all the possible combinations, 64 in total, much fewer than 64,000, and it usually takes, on average, only 32 tries to find the correct combination.
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?