I want to change my Master Lock combination

Look up 'The Lock Picking Lawyer' on YouTube and he will show you just how bad Masterlock are. It is a standing joke. You insert a shim like a feeler gauge between the wheels and feel for the flat. You can also open them by applying a little tension and start with the wheel closest to the opening and turn the wheels until you feel the wheel slacken as it drops into the gate. all his videos are under 3 to 5 minutes, he is remarkable! :>D

https://www.youtube.com/c/lockpickinglawyer/videos

I think yours is the luggage lock in this list. I had one of those, it fell on the a carpeted floor and blew apart!!

https://www.youtube.com/c/lockpickinglawyer/search?query=masterlock%20combination

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Google

make model manual
or
make model change combination

It is impossible for us to guess what you have. Here are a few just for fun!

"Set-Your-Own" Combination Locks Instructions ' FAQs

https://www.masterlock.eu > ... > FAQs > Padlocks

Q: How do I set or reset the combination on my bike cable lock model 8221, 8231, 8120, 8190, 8226?

Change my combination? - S&G - Sargent & Greenleaf

https://sargentandgreenleaf.com > knowledgebase > kno...

Do not remove lock cover. If an error is made, re-dial the entire combination. A U8 change key is required to change the combination. If you ...

Support FAQs ' Master Lock

https://www.masterlock.com > Support

Q: How do I set or reset a Master Lock combination padlock that has a ... Q: How do I change the combination on a Set-Your-Own combination lock model #643D?

How do I set or reset the combination on my Lock Box?

https://www.snapsafe.com > support > faqs > how-do-i-...

Begin by opening your Combination Lock Box. 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 ...

Bolt cutters or a lock smith

had your looking for a combo, throw it out. no way to find the combo for it. serial only refers to the model of the lock. its like asking for a part for " my ford truck " not enough info.

You can either listen to the clicks as you turn the knob very slowly or get a new lock.( And this usually only works in the movies.) Or, the only other thing I can think of, is to call the lock company ( there's a 800 number on the back of the package the lock came in.) that made the lock and ask the operator, if there is a way to get the the combination to your lock. You'll need the serial number from the lock its self.
Thank you,
Sincerely,
Cat2868

No joke... trial and error... its not going to be fun, but work out a system so you don't cover the same number twice.

Hello Beryl. You can call a local locksmith or work with master lock at this link http://www.masterlock.com/faq/lostcombo.shtml

Joe

help me

If you have the change key, you can insert into the lock and make a new combination. Only the Change Key witll allow you to change combination.
Artgirl

This PDF document explains it carefully -

http://www.masterlock.com/faq/pdf/620_630_646_647_Instruction_Sheet.pdf

Hope this helps.