Union Oval Cylinders

[Erdnaseuk]

Hey all

I have gained a Union Oval Cylinder and thumbstop locks.
Infact its this one - http://www.handles4homes.co.uk/union-2x ... tAodD0UA5g

I have removed the cam and all the pins - does anyone have any ideas how to dismantal this further? I have had a look online and through my books but cant really find any information.

[ARF-GEF]

What else would you like to get out?
If the cam can be removed after you remove the tumbturn. I don't know that model but look for little screws or spring biased bits.

[Squelchtone]

It would help if you show us some photos of what you have done so far... upload photos to http://tinypic.com or to http://imgur.com and Copy/Paste the link in your reply.

Here is a post that may help you, click the links to see photos.
viewtopic.php?t=5199


good luck,
Squelchtone

[GWiens2001]

Also try looking for very thin circlips in either side of the cam.

Good luck!

Gordon

[capt.dunc]

the union ovals usually don't have full circlips, but a rotating half circlip which turns with the cam and is secured with a split pin. it's possible that this is what erdnaseuk has removed, in which case simply putting in the key, giving it a slight turn and pulling should result in all the springs and pins spreading out all over the place

hard to know what he's done till we see a photo, if he's done what i think, then removing the core should be easy, but worth doing in a bag to save losing bits, and he'll need a jig to reassemble.

this sticky's worth reading for reassembly

http://www.lockpicking101.com/viewtopic.php?f=10&t=5199

[Erdnaseuk]

Sorry, my bad. Never explain my self properly when im first here.
I have got all the key pins, driver pins and spring out already (I removed the circlip as capt.dunc decsricbe. I was just wondering if there was any way of getting the thumb stop mechanism apart - I would like to take a lock at how the enitre lock intreacts together really.
Will try and upload photos soon. This was a surprisingly difficult lock, seeing as it only composed of five basic key / driver pins and a very worn Y1 keyway.

[capt.dunc]

ok, i've had a think about it and you're in one of 2 positions;

1. you've removed the cylinder and pins and springs from the housing, the cam and the shuttle that engages it, a brass cylinder spacer piece and a large spring, and are wondering how to remove the turner.
i believe the turner once it's in place on the unions is secured with a brass pin hammered into the housing which protrudes into a groove in the turner to secure it in place. you could drill this out to remove the turner but there's really nothing more to see, and you'd of destroyed a component part.

2. you've removed the cylinder and pins and springs from the housing, but not the cam and the shuttle that engages it, a brass cylinder spacer piece and a large spring. when you've removed the cylinder with the key, you've engaged the key side of the shuttle into the cam and now the shuttle is holding the cam in place and preventing you from removing it from the side. you need to turn the cam until the thumb turn side of the shuttle is pushed forward by it's spring, and at this point the shuttle piece should be able to drop out of the front of the cylinder housing, now the brass spacer will be sprung forward and may trap the cam, you'll need to use a long probe to push it back into the turner (this is the same as pushing through the back of the key way to engage the mech when picking on a door) and you should be able to get the cam free, followed by the spacer cylinder and it's spring and you'll be at the situation above.

hope this helps