Locksmithing/Safe Senator MC-350


While cleaning up our companys rooms we found a safe.
Its an Senator MC-350 (says the writing anyway), it has a number wheel lock and a key.
To open it you need to enter the right number and use the key.
The key is still there.

What wie found out is that the last person who was using it was trying to change the code when the phone rang, he answered the phone and someone else closed the safe.
This was some years ago.

Now i am trying to open it again, its still stuff in there but not clear what exactly.

My question: Do i have any chance to open it whitout damaging it?

thanks in advance, regards..  stali

Hi Stali,

You may have a couple problems with the safe - this is one of the reasons that I NEVER recommend combination changing as a DIY project.

Many safes have protective devices built into the safe and/or the lock.   Depending on how the person was attempting to change the combination, AND how far it was disassembled, when the door was closed these "relocking" devices may have activated.   If that is the case then your only options are going to be having the safe opened by a trained safe technician or safe engineer from a local safe company.

You can test dial all of the possible 1,000,000 combinations to see if you can either figure out where he was at in the changing procedure, or what the lock is currently set to, though having a safe technician will make it go MUCH faster.

Sorry, there isn't a quick fix, but these safety/security devices are designed to protect a safe in a burglary attempt, however they don't know the difference between someone trying to force the safe open and/or someone working on the safe - if the door is closed.

As far as opening it without damaging it - that would depend on the extent of the lock out AND the capabilities of the safe technician.

Check with your local safe companies to see what your options and costs are going to be.  


All Answers

Answers by Expert:

Ask Experts


Terry V. Andreasen (Andy)


Safe and Vault related Questions; Antique Safe Repair and Restoration; With over 42 years in the Safe & Vault industry, if I can't answer your question I know where to get the answer. Current Project: Restoration of an Ely Norris Cannonball Safe from the early 1900's. Will answer Safe & Vault related questions concerning age, value, restoration, moving, opening & repairing, parts, operation and history. Note: It is not my intention to teach you to open safes or to provide information which may aid in the unlawful opening of a safe. I will not give out drill points or information which I deem inappropriate.


44 years in the Safe & Vault Industry. Owner and Service Manager for one of the largest Safe & Vault companies on the West Coast. Graduate of Lockmasters Safe Lock Servicing, Safe lock Manipulation and Safe Deposit Lock Courses. Graduate of Locksmith Institute. Certified Instructor for the California Locksmith Association teaching Basic and Advanced Lock Servicing, Basic Safe opening and Repairing. Factory Trained by AMSEC, LORD Safes, LeFebure, Mosler, KabaMas, LaGard and Sargent & Greenleaf Author of "The Coffee Table Guide to Antique Safes".

SafeCrackers International and the National Antique Safe Association Safe & Vault Technicians Association (SAVTA)

The Coffee Table Guide to Antique Safes AllExperts.com

Graduate of Locksmith Institute 1972 Graduate Lockmasters Safe Lock Servicing 1974 Graduate Lockmasters Safe Lock Manipulation 1975 Graduate Lockmasters Safe Deposit Lock Servicing 1985 Instructor Certified - California Locksmith Association - 1985 Factory trained by AMSEC, MAJOR, STAR, Johnson-Pacific, Kaba-MAS, Allied-Gary, ISM, Lord, Brown Safe, EXL, Mosler, Diebold.

Awards and Honors
2009 - 2015 - Listed in AllExperts Top 50 Experts. All Expert Categories - Safes & Security Containers, Locksmithing, Antique Safes. Retired US Army Chief Warrant Officer (CW4), with 39 years of total service. With numerous awards from Vietnam, Desert Storm and Operation Iraqi Freedom. US Navy - 1971-1981 US Army Reserve 1984-2013 US Army Retired

Past/Present Clients
US Secret Service, FBI, BATF, Local Law enforcment agencies, Diebold, Hamilton Pacific, Red Hawk Int., Chubb International, Bank of America, Wells Fargo Bank, Mechanics Bank, El Dorado Savings Bank, many Credit unions and smaller banks. McDonalds, Togos, BurgerKing, TacoBell, Carls Jr. FoodMaxx, SaveMart, Lucky's, Albertson's, Raley's, Safeway, NobHill, Bell Markets, PW Markets. Great America, Century Theatres, Cinemark Theatres, UA Cinemas, and many homeowners and small businesses. Provide warranty service for lock and safe manufactures. Service Area is Northern California (Fresno to Oregon and Western Nevada)

©2017 About.com. All rights reserved.