Setting the lock?

[James Y]

I have 3 Emersons...one CQC7B and two CQC7A's. One of my A's had a problem where if I pressed the back of the open blade with medium pressure the lock would creak and start to slide back over part ways. This morning I took the knife, tried it again, it did it as usual. Then I moderately whacked the back of the blade against my thigh (not as test of lock strength but to try something new). There was one slight click sound. Now I notice the lock is rock-solid even with hard hand pressure to the back of the open blade. Did I actually "set" the lock somehow that eliminated the sliding problem? It seems that as of now, no matter how hard I try, I cannot recreate the problem and so I am happy as a clam. Anyone else have such experience?
Jim

 

[Charlie Mike]

It happened to me with a Mach 1, Mini Commander, and a 2000 Commander. My waved CQC7b is the only one it hasn't happened to. I found that if I rubbed the blade tang against my pocket lip (picture dental floss), it would alleviate the problem for a while. When in doubt, send it to EKI.

 

[SALTY]

Sounds like it could have been poor finish work on either the back of the blade or the liner's engagement point. That "click" you heard was likely a burr or small piece of material breaking off and permitting engagement more along the lines of what the design called for instead of the unfished material improper engagement.