Noisy environments

[Comrade627]

So coming back from the range in a USMC "7 ton" I managed to pick this. It was made in 2011 so I do believe it's the lesser security level Master lock version of the American 5200. Either way, it was still tough since I can't hear a thing over the trucks engine. Usually well after bedtime with the lights out I'll pick up a lock until my wife gets onto me about staying up late knowing I have to get up early. But that's in the dark. Picking when you can't hear, now that throws off your game.

Side question, does anyone know when the 5200s were downgraded? I have both versions but there's a large date gap between them.

Also, the tape is there just to manage the chain that comes attached to the shackle in case that part lost somebody.

[Robotnik]

I believe 5200s began using the M17 keyway and standard pins in 2010 or 2011. Others will likely know better and can correct me if I'm wrong.

As far as picking in noisy environments, I agree, it does complicate things. The exception for me is locks with spools; the false sets eliminate my need for audible feedback.

[Comrade627]

I believe 5200s began using the M17 keyway and standard pins in 2010 or 2011. Others will likely know better and can correct me if I'm wrong.

As far as picking in noisy environments, I agree, it does complicate things. The exception for me is locks with spools; the false sets eliminate my need for audible feedback.

I'll agree to that. The last M17 5200 I took apart only featured one bump stop driver pin in chamber 5. Chambers 1-4 as well as all 5 key pins were standard pins.

[BSG_314159]

Side question, does anyone know when the 5200s were downgraded? I have both versions but there's a large date gap between them.

Yea... master lock owns them now...
http://www.masterlock.com/more-from-mas ... ericanlock

Break down that lock and you will notice you can't open up the core anymore.

[Comrade627]

Side question, does anyone know when the 5200s were downgraded? I have both versions but there's a large date gap between them.

Yea... master lock owns them now...
http://www.masterlock.com/more-from-mas ... ericanlock

Break down that lock and you will notice you can't open up the core anymore.

If you're referring to the crimp in the body, it can still be opened. Try rotating the plug so that the bottom on the keyway is centered on the crimp, then just push on the back of the plug. Pops right out.

[BSG_314159]

I was just pointing out the quality control that went out the window when master lock took over.

The key is also different. They use style key.

https://youtu.be/NAcNsdWw_y0

https://youtu.be/u4yIz18mCEw

Watch those videos.

[BSG_314159]

I picked a 5200 the first day I got my picks. It was a newer style (masterlock). Probably was a whole lot of luck.

I know the for me personally American locks (premasterlock) are harder to pick. Could be all in the head.

[Comrade627]

I picked a 5200 the first day I got my picks. It was a newer style (masterlock). Probably was a whole lot of luck.

I know the for me personally American locks (premasterlock) are harder to pick. Could be all in the head.

It's not all in your head. Pre master feature a whole mess of serrated pins and a spoorated pin. Post master only have a single bumpstop in chamber 5.

[nick08037]

Side question, does anyone know when the 5200s were downgraded? I have both versions but there's a large date gap between them.

Yea... master lock owns them now...
http://www.masterlock.com/more-from-mas ... ericanlock

Break down that lock and you will notice you can't open up the core anymore.

If you're referring to the crimp in the body, it can still be opened. Try rotating the plug so that the bottom on the keyway is centered on the crimp, then just push on the back of the plug. Pops right out.

When turned to this alignment it also gives you the space to use a small screwdriver in the bottom of the keyway to open the crimp, of course you then need to reform it for reassembly, so Comrade627's suggestion is a more efficient method. -Nick