ZT 0452 lock up

If most are perfect and only a few have this issue and ZT can't fix it on the faulty knives, then they should replace them.
 
jill jackson said:
Then why does only some of the 0452's move over and the rest are reported not to? Your statement says they will, yet some don't?
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Honestly I would only be guessing. Im not saying anyone is lying but in some cases I think some might be using a little more effort than others. I have theories on why it may happen in some knives and not in others but its pure conjecture and without knowing for sure I feel it wouldn't further the discussion.
 
This is strange. I thought mine was good. Locks up solid when flipping, but if I put pressure on the lock bar sure enough it will travel over all the way.
 
bad_juju said:
Have you sent it in to warranty yet?
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Just found out this morning. I'm still trying to see if it's something wrong, or not. I lean towards the side it's not right though. As I'm looking at a Reate Horizon ATM and it sure is solid won't move hardly any.
 
My ZT 0452CF also does this. Lockcup is good until pushed in, and it travels all the way over. Also, my blade is too long for the handle and it cuts my finger tip when I reach for it in the pocket. I just sent it in to Kai warranty so hopefully they correct both issues.
 
To be truthful, I have messed with a lot of liner locks and frames locks, on knives I use and the only ones I ever could push over all the way to the far side like this, was the really cheaper ones. That's why I don't believe this is right, like some say. I always checked users for this and felt when they did slip way over, they just weren't well fitted, liner or frame lock. I don't really see much other excuse for it.
 
PURPLEDC said:
Honestly I would only be guessing. Im not saying anyone is lying but in some cases I think some might be using a little more effort than others. I have theories on why it may happen in some knives and not in others but its pure conjecture and without knowing for sure I feel it wouldn't further the discussion.
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FWIW...I've never tried forcing a lock bar closed like this till this issue came up. I don't think I am going to try it.
 
jill jackson said:
If you watch the videos the guy shows a ZT 0777 that has the composite handle and it will not move over at all, so there's more to it than that. I think it's just ill fitted lock inserts to tang.
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If I remember correctly the 0777 was made before they started flat lock faces. A curved lock face will only allow the lockbar to move over so far before the curvature of the lockface prevents further movement. The reason for the switch was because lock rock often develops in curved lock faces as they will never move past a certain point during wear. The lockbar then wears but because it wont move any longer it creates a gap causing the lock rock.
 
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PURPLEDC said:
If I remember correctly the 0777 was made before they started flat lock faces. A curved lock face will only allow the lockbar to move over so far before the curvature of the lockface prevents further movement. The reason for the switch was because lock rock often develops in curved lock faces as they will never move past a certain point during wear.
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I still don't think that's all there is to it, as most knives I own don't have the curved lock face and they don't slip all the way over.
 
jill jackson said:
I still don't think that's all there is to it, as most knives I own don't have the curved lock face and they don't slip all the way over.
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I didn't say that was the only reason. I said it was part of the reason. The lockface being flat, the composite handle half as well as the steel lockbar insert. Im not saying you have to like it or accept it as normal. I am just trying to help you understand why it is happening.
 
PURPLEDC said:
I didn't say that was the only reason. I said it was part of the reason. The lockface being flat, the composite handle half as well as the steel lockbar insert. Im not saying you have to like it or accept it as normal. I am just trying to help you understand why it is happening.
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Because ZT needs to pay more attention to these type lockups and fit them with more precision? Is that what you are saying?
 
jill jackson said:
Because ZT needs to pay more attention to these type lockups and fit them with more precision? Is that what you are saying?
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Im sorta saying that I think its the perfect storm of circumstances that would have this be the issue it is. I had a 0452cf and I could get the lockup to about 80%. But It never happened while using the knife. I physically had to do what everyone is doing which is push it intentionally with their thumb. I come from the school of if it doesnt happen when i use it then its not a problem for me. It may be a problem for you and I have nothing to say about that as I have many quirks with knives that others feel I am crazy for. As to whether its within spec or if its defective? I think the only people who can answer that is ZT. Knives have so many different ways of being made and preferences vary so much from one manufacturer to the next that what is defective for one is just right for another. But if you dont mind my opinion I can offer that. For me I am fine with how these knives operate with my given experience of them. But my thoughts are you dont share that sentiment. And as someone with my own preferences I know how it can nag at you. So the question to me isnt so much if its right or wrong but whether you can live with it regardless of the answer. I think at the very least you talking with those who made it may be the only way to set your mind at ease. We all have opinions but the only one with real answers is ZT.
 
PURPLEDC said:
But if you dont mind my opinion I can offer that. For me I am fine with how these knives operate with my given experience of them. But my thoughts are you dont share that sentiment. And as someone with my own preferences I know how it can nag at you. So the question to me isnt so much if its right or wrong but whether you can live with it regardless of the answer. I think at the very least you talking with those who made it may be the only way to set your mind at ease. We all have opinions but the only one with real answers is ZT.
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No it doesn't nag at me that you feel the way you do. Why, because I see your point and feel the same somewhat. I also feel that maybe the locks are not fitted as well as they could be, based on looking at many other knives I own with the flatter angled lock up. It's just a knife and I'm just trying to find out other people's experiences with this models lock up. I'd like to have an answer from ZT, but I'm not sure that would be so easy to get, as I'd probably just get someone, that would say to send it in if I'm not happy and I doubt I'd ever reach anyone that would know.
 
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jill jackson said:
No it doesn't nag at me that you feel the way you do. Why, because I see your point and feel the same somewhat. I also feel that maybe the locks are not fitted as well as they could be, based on looking at many other knives I own with the flatter angled lock up. It's just a knife and I'm just trying to find out other people's experiences with this models lock up. I'd like to have an answer from ZT, but I'm not sure that would be so easy to get, as I'd probably just get someone, that would say to send it in if I'm not happy and I doubt I'd ever reach anyone that would know.
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Jill send me an email if you dont mind at purpledc400@yahoo.com
 
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