Identifying replacement handle mechanism for UPVC door

[alpharomero]

My heavy front door has not locked for a long time, the handle will not move upwards allowing it to lock. Recently I decided to have a tinker with it. I've fixed the hinge so it's more level and closes flush instead of slightly catching the frame, and I've fully removed, taken apart, inspected and restored the lock.

Now the lock WILL turn when removed and laid flat, and it can work momentarily when reinstalled into the door frame, but stops pretty quickly from what I assume is the force of the door closing. So I think something in the handle mechanism was broken, out of place or whatever but I cannot see specifically what it is when I take it apart or why it starts working again when laid flat.
So my only solution I can think of is to replace the mechanism entirely, which having done the removing and taking apart part doesn't seem too hard a job, but I do not know what brand the current lock is so I don't know what to look for as a replacement.

I've included photos of the mechanism to see if anyone knows what I can get, I can probably find it on eBay as Wickes/B&Q don't appear to carry them separately.

Thanks for reading.
http://i43.tinypic.com/2daaedx.jpg
http://i43.tinypic.com/szv8yw.jpg
http://i40.tinypic.com/312xz4w.jpg
http://i39.tinypic.com/5d1d0g.jpg

[horsefeathers]

old Maco

good luck sourcing that if you are not in the trade (which you arn't)

call local locksmith who may be able to replace the gearbox, or fit the newer version to your door

[mseifert]

There a several Maco Locks on Ebay.. You might want to start looking there..

[mh]

MACO 56231, from MACO (MAYER & CO), an Austrian company. Google finds some possible replacements.

Cheers
mh

[alpharomero]

Thanks everyone

[alpharomero]

Another quick question. I've found this (http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=190870791455&ssPageName=ADME:X:RTQ:GB:1123) which is the newer style one. What would be involved in switching to it? Reading around it seems I'd just have to move the hook receivers on the frame? Or is it going to be a lot more difficult than that?

[btirewittewin]

Another quick question. I've found this (http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=190870791455&ssPageName=ADME:X:RTQ:GB:1123) which is the newer style one. What would be involved in switching to it? Reading around it seems I'd just have to move the hook receivers on the frame? Or is it going to be a lot more difficult than that?

This would also do, but to be frank I haven't tried this yet but yes if I would be in place of then I would go for either for Maco or for the keyshot these both brands have been used by me since so many years and work really fine,, you may try one of these.