Brink's Hardened Solid Steel Shrouded Lock Break-down

[mrdan]

Below I basically put the same thing that I put in this PDF file.

http://www.upaironline.com/lockstuff/Brinks_lock_Break-down.pdf


Brink's Hardened Solid Steel Shrouded Lock

There is a Pin to the right of the lock that should come out. I went through a few high speed steel bits and a few grinding bits before I gave up and drilled it out with a carbide tipped masonry bit 1/8”. (That is some tough metal!) I have been told that one can sort of pry it out. I made some mistakes in breaking this lock down and I explain what I did wrong and how to do it right. (Or at least without making the same mistake.)



Note the top of the retaining pin to the right


The end of the retaining pin is narrower than the body to allow it to ride in the groove shown in the next picture.


The retaining pin end rides in the groove to the left. It can be pushed up by using a thin hook through the hole which is in line with the holes for the tumblers.

The gouges that appear are where I messed up and had to use the dremmel. I locked up the cylinder by not turning to clear the groove as I tried to remove the plug. Oopse!
(See next photo)

Push the retaining plug up and pull it out of the cylinder hole in order to turn the plug CCW (If you don’t turn the cylinder before pulling the cylinder, the next pin will get stuck in the groove and muck things up. Believe me I found out the hard way)


Plug follower (if used) should be about .4” (2\5”) in thickness.


Here are the tumblers


The Brinks key with security pins and spools.

[Squelchtone]

Hey mrdan,

Very nice tutorial! don't worry about your dremel marks, you should see the carnage my American Lock Series 50 went through.

Does anyone else notice this lock uses an American Lock "1045" keyway? Or that it looks like the American Lock 5360? hmmm... either American's patent ran out or they're making these for Brinks. The amount of security pins sure looks like the inside of an American Lock padlock.

American Lock 5300/5360:



specs:
http://www.lockpeople.com/itemAm.asp?int_id=25


good work mrdan, I think you've helped me pick out which lock I'm buying next. =)

Squelchtone

[raimundo]

yup, it appears to be the american lock keyway, but if you put a blank for the american lock in there, it will be tight, tighter than in an amerian lock. this is often true when a keyway is used by a new company after another company had the patent for a long time. perhaps the tighter keyways are coming from patent specs, while the extra tolerance in the keyway in the original user of it might reflect some leeway that was added as a tweak when the locks were in use by the millions, to keep keys from getting stuck or broken in too tight locks.

[raimundo]

yup, it appears to be the american lock keyway, but if you put a blank for the american lock in there, it will be tight, tighter than in an amerian lock. this is often true when a keyway is used by a new company after another company had the patent for a long time. perhaps the tighter keyways are coming from patent specs, while the extra tolerance in the keyway in the original user of it might reflect some leeway that was added as a tweak when the locks were in use by the millions, to keep keys from getting stuck or broken in too tight locks.

[unbreakable]

Nice breakdown, and a PDF too!

I love PDF's.........

Very well done.