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Hi,
I attempted to alter the functionality of a bathroom door lock by adding an anti lock-out function.
It’s a Legge 900 series Mortice lock, so all it needed was the screw into the existing 9A adapter to enable the anti lock-out function.
Once the screw was in, I tested the latch prior to reinstalling the lock in the door & it seemed to behave as expected - pressing the latch in caused the lock snib adapter to rotate to the unlocked position, indicating all should work once reinstalled.
But reinstalling the lock introduced two issues:
1) Turning the lock snib was difficult & I think resulted in its spindle becoming twisted.
2) Turning the latch handle was VERY hard & once pulled down, caused the latch to become partially stuck inside the lock.
It still kind of works - turning the internal handle does activate the adapter & rotates the lock snib, but it takes three pulls of the handle to allow the external handle to open the door.
Latch partially stuck
Lock position
Unlocked position (requires 3 pulls to unlock outer handle).
So I’m now concerned that I’ve broken the Mortice lock.
Can anyone explain what’s gone wrong here & possibly suggest a solution?
Hello @Ralfi
Welcome to the Bunnings Workshop community. It's sensational to have you join us, and thanks for sharing your question about your mortice lock.
My only thoughts are possible misalignment of the components involved. Please do not force the mechanism to work in its current state to prevent internal damage to the gears. I suggest removing the anti-lock-out device and testing the main latch again. As you mentioned the device worked perfectly before you re-assembled it. It's possible that during re-assembly a part of the mechanism shifted or has gone out of alignment.
There is also the possibility of binding or overtightening of the parts again due to shifting in its alignment. I recommend trying to re-install the device, but this time pay close attention to everything as you put it back into place. Make sure that there is no shifting and the device stays in alignment. Keep the screws loose and test the device if it works properly then slowly tighten the screws.
If the device still fails to work properly, I suggest bringing it back to the store for an exchange. There is always the possibility that it could be defective. I also recommend looking at our Door Lock Installation Service if you are looking for a professional to install your anti-lock- out device. Please speak to the special orders team to make sure that they can accommodate your needs for this type of installation.
If you need further assistance, please let us know.
Eric
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