I have ordered a Siegenia 3Gr.4TL FFH 1880-2380 with a backset of 15mm to replace the broken drive gear locking mechanism on my patio door, when it arrives I will cut the part to length and fit it aligning the cams.
The door is locked by turning the handle anti clockwise from the bottom to the top ( fully open at 6 oclock via 3 to closed and fully locked at12 if that makes sense ) when the the handle is at 3 the door can tilt but not slide, now here is my question ~ in which position do I replace the handle, it has to turn anti clockwise because the door closes to a wall and, from experimenting with the old mechanism, I know the little gear will drop if I have to remove the handle so I need to get it right first time.
The easiest answer would be to remove the handle from the square bar which fits into the gear of course, I've tried to do that but don't have the right tool for it ~ looks like some special screwdriver is needed.
Cheers
Paul