A little frustration.

BOK

Joined
Apr 16, 2002
Messages
2,413
I love my Sebs I really do, but I'm having some major issues with the pivot and stop pin screws coming loose. I would say a cycle of maybe a week, sometimes two of regular use and opening and closing the knife will cause the screws to come loose. A real pain when I'm not at home and have the little wrench with me. It's a large classic.

The knife carries well, it cuts great and handle ergos are great for me but the screw issue is becoming a real sour point.

I had a 2004 annual edition that did the same thing. It went in twice to get the issue resolved. Due to many other issues with it I eventually exchanged it for something else.

So what to do about my classic now? Sending it in is not a huge problem but the wait time and cost is a bit of an inconvenience especially since I had to do it twice the last time around.

Again, I love my Sebs but this issue twice around now on a 300 plus dollar knife is starting to get a little frustrating.

Has anyone had the same problem and how did you resolve it if at all?
 
I should add that I have a small decorated and a large micarta Sebenza that do not have the screw loosening problems at all.
 
Could you have gotten lubricant into the works? Take it apart, clean the pins very thoroughly, male & female, (use Q-tips) and reassemble it.
 
Per posts from the past, the relative softness of the 303 stainless screws and posts should create a "pop" of sorts when you loosen them. Sounds like to me you need to tighten them more that what you're doing, making sure that everything internally is uniform and flush (bronze washers, etc). I purposely put lube on the screw threads, but still have never had them loosen.

If you put a good bit of torque on the screws (providing everything is uniform inside) and still have loosening problems, you've got a rare CR dud.

Professor.
 
I purposely put lube on the screw threads, but still have never had them loosen.

Professor.

So do I: I wipe all parts down with Tuf-Cloth when I disassemble and clean the knife.

I hope we found out what's happening -- I'm getting a bit frustrated myself. :)
 
Good point. Also, tighten each screw in turn slightly, then go back and tighten them slightly more. Don't just tighten one hard and then tighten the others. (Think about changing a car tire.)
 
Good point. Also, tighten each screw in turn slightly, then go back and tighten them slightly more. Don't just tighten one hard and then tighten the others. (Think about changing a car tire.)

What he said!

If all else fails, there is always Customer Service. They are excellent and turn-around is great.

You've got others. Send this one in and let them make it good.
 
Hi all,

Thanks for the suggestions. I have now experimented with them all including tightening to the point where it almost feels like I'm going to strip the screw or break the wrench. Still no luck.

Looks like this one is going to have to go in, with much reluctance though.
 
this might sound crazy, when i have this kind problem with a knife i will use a little (very little) Super Glue as a thread locker.
 
You can use loctite which was specifically designed as a thread locker but it doesnt work on Sebenzas.

Locking the thread will have the opposing side of the screw just rotate instead of loosening when it comes time to take it apart.
 
Another vote for tightening until you hear the first squeak.

The pivot on one of my large classics used to like to come lose regularly, and only bedded in properly when I risked over tightening it.

I have a Mnandi that must have been over lubed at some point, and it wouldn’t stay tight until I got the last of the excess lube off.
 
Another vote for tightening until you hear the first squeak.

The pivot on one of my large classics used to like to come lose regularly, and only bedded in properly when I risked over tightening it.

I have a Mnandi that must have been over lubed at some point, and it wouldn’t stay tight until I got the last of the excess lube off.

You know, you might just want to use a more aggressive solvent to clean the pins and screws. You may be leaving just enough residue to cause your problems.
 
use loctite and when u want to loosen the screws for maintenance hot water will loosen the locktite
 
I'm adverse to using loctite on the Sebenza because its design is such that it shouldn't need it. So if I'm using loctite it means that theres something wrong.
 
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