Sliding door occasionally does not lock

I read a few weeks ago a great post about adjusting the sliding door lock mechanism if it sometimes does not lock, anyone tell me where I can find it again
Thanks

 

search through 'itinerant aircooled' site

 

http://www.itinerant-air-cooled.com/viewtopic.php?t=9144 there you go....

 

Interesting but the post was specifically about why the lock sometimes did not work and described how a few adjustments you could make

 

didn't see it, sorry...