(Update) Umnumzaan problem

Josh K said:
Your OCD would be putting the knife out of spec. I don't understand people who think that the knife needs to be adjusted.

If there is an issue, send it in. They don't sell snake oil, they sell quite honestly perfect knives.

I had an Umnumzaan that was doing a similar thing with a light tap on the spine. I sent it in, it was fixed, and I have zero issues with it. It's my EDC knife.
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If you had the tools might as well give it a try first. Only takes a second to take the knife apart and put a little more tension in the lock bar. And if it's fixed.. well then it's fixed and you no longer have to send the knife back. If not you are still going to have to send the knife back, but at least you gave it a shot. But the OP did not have the tools so he doesn't have a choice.

I also read a thread where once a guy walked up to Mr. Reeve at a blade show and gave him a heavily used sebenza and said it wasn't locking up right any more. All Mr. Reeve's did was take the knife apart, fiddle with the lock tension, and put it back together to where it locked up tight. He gave it to the guy good as new. There was no micrometers used to see if the knife was still in spec. He did it in just 5 minutes. And the guy said the sebenza worked just fine afterwards with a strong lockup. So it can't hurt to try.

He should be able to open the blade as slow as molasses and still get a fixed blade type lock up, I agree with him 100 percent on that.
 
Incahiker said:
If you had the tools might as well give it a try first. Only takes a second to take the knife apart and put a little more tension in the lock bar. And if it's fixed.. well then it's fixed and you no longer have to send the knife back. If not you are still going to have to send the knife back, but at least you gave it a shot. But the OP did not have the tools so he doesn't have a choice.

I also read a thread where once a guy walked up to Mr. Reeve at a blade show and gave him a heavily used sebenza and said it wasn't locking up right any more. All Mr. Reeve's did was take the knife apart, fiddle with the lock tension, and put it back together to where it locked up tight. He gave it to the guy good as new. There was no micrometers used to see if the knife was still in spec. He did it in just 5 minutes. And the guy said the sebenza worked just fine afterwards with a strong lockup. So it can't hurt to try.

He should be able to open the blade as slow as molasses and still get a fixed blade type lock up, I agree with him 100 percent on that.
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I agree with the last part, but I'll also say that there is a difference between sending a knife in for lock up problems and sending a knife in for lock up problems you attempted to fix by manipulating the tension.

If CRK wanted you to adjust the tension then he would say so. Being comfortable enough to have users take the knife apart is different then altering it.
 
Mine did the same thing, so I just gave the lock-bar more bend.
Problem solved!
The O-rings can be an issue, as mine did engage enough if I opened it hard.
Now it engages perfectly every time, whether opened slow, fast, medium, whatever.:)
Of course, don't try this at home if you aren't as amazingly awesome as me.:D
 
Heather called and said the Umnumzaan is on it's way home. Basically, the lock bar had lost the tension and she didn't really tell me exactly why. I asked if it was due to someone overextending the lock in the past but she only said it could have been. Either way, she said the problem is fixed (under warranty).

Now that I have you reading...I'd like to give major props to BBQ Boy. I purchased this knife from him and as soon as he read I was having problems he contact me and offered to buy the knife back, pay for shipping to CR or whatever I wanted to do. I'm thrilled with the knife and plan on keeping it but just wanted to say...

BBQ Boy, You are a class act :thumbup::thumbup:
 
n2wilderness said:
The short answer is because it's my knife :cool:

To explain, I'm not opening it painstakingly slow just to see the lockbar mess up. I'm slowly guiding it with my thumb as opposed to pushing/"flicking" it open quickly (without wrist action). Regardless, it is not normal for the lock bar to engage at all without a solid lock up unless I do not understand the mechanics of it all.
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I understand what you're saying; I do this with my Sebenza's and it elongates the lockface life. Once I "dampen" the engagement of the lockbar, I then grip/squeeze the knife to better/fully engage the lockbar without it having "slammed" into place via the full lockbar's tension per the bend.

With my Umnum on the other hand, the design appears to call for the very type of ballistic opening to obtain secure lockup that I try to avoid with my Seb's. It's as though the ceramic ball/blade tang interface was specifically designed for full-on opening force every time.

Of course, being absent the proper lockbar tension, as was the case with yours, will definitely compromise all of the above. Glad you got it fixed!

Just my .02.

Professor.
 
n2wilderness said:
Heather called and said the Umnumzaan is on it's way home. . . .

. . . I'd like to give major props to BBQ Boy. BBQ Boy, You are a class act :thumbup::thumbup:
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Would love to get your thoughts and see some pix when you get it back in hand.

And kudos to BBQ Boy!
1055.gif
 
n2wilderness said:
Heather called and said the Umnumzaan is on it's way home. Basically, the lock bar had lost the tension and she didn't really tell me exactly why. I asked if it was due to someone overextending the lock in the past but she only said it could have been. Either way, she said the problem is fixed (under warranty).

Now that I have you reading...I'd like to give major props to BBQ Boy. I purchased this knife from him and as soon as he read I was having problems he contact me and offered to buy the knife back, pay for shipping to CR or whatever I wanted to do. I'm thrilled with the knife and plan on keeping it but just wanted to say...

BBQ Boy, You are a class act :thumbup::thumbup:
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Thanks Tom
 
I'm noticing the same thing with my large regular Seb. The lockbar won't engage all the way if you open the knife slowly or lightly. If you push the blade closed the lock fails. My other Sebs didn't do this and I think it's a problem.
 
JediKnight86 said:
I'm noticing the same thing with my large regular Seb. The lockbar won't engage all the way if you open the knife slowly or lightly. If you push the blade closed the lock fails. My other Sebs didn't do this and I think it's a problem.
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If that's happening I would send it in.
 
Update-

The Zaan came back a few minutes ago. The lock up is definitely improved. I'm not sure they lubed it up b/c it isn't nearly as smooth so it's a good thing I ordered the tool kit and the grease!

Now the problem is how the hell do I decide which CR to carry???? The Zaan or the Large Micarta 21??? They are both amazing!
 
n2wilderness said:
Update-

The Zaan came back a few minutes ago. The lock up is definitely improved. I'm not sure they lubed it up b/c it isn't nearly as smooth so it's a good thing I ordered the tool kit and the grease!

Now the problem is how the hell do I decide which CR to carry???? The Zaan or the Large Micarta 21??? They are both amazing!
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I glad it came back so quickly. I would imagine that it isn't as smooth since the lock bar is applying more pressure now.
 
JediKnight86 said:
I'm noticing the same thing with my large regular Seb. The lockbar won't engage all the way if you open the knife slowly or lightly. If you push the blade closed the lock fails. My other Sebs didn't do this and I think it's a problem.
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I had a Military that did that - I agree, big potential problem/risk. It had less resistance to closing than a slipjoint. :eek:
 
I know this is a different topic but I'll post it here since you guys have been following me with this Zaan. It came back from the shop and they "brought it back to specs" with the tension on the lockbar. Thing is, after I have had my Large 21 for a week or so and compare it to trying to open the Zaan I have to say I am not that big of a fan of the Zaan anymore. It is just so darn easy to open up the 21 and somewhat difficult on my thumb to open up the Zaan.

So, my question is (before I put this on the Exchange), does it get any easier with time to push the Zaan's lockbar over? Have I just been spoiled with the extra cutout on the Ti of the 21?

Thanks for you help.

**caveat- I am talking about one handed closing b/c there are no issues when closing with 2 hands.
 
n2wilderness said:
I know this is a different topic but I'll post it here since you guys have been following me with this Zaan. It came back from the shop and they "brought it back to specs" with the tension on the lockbar. Thing is, after I have had my Large 21 for a week or so and compare it to trying to open the Zaan I have to say I am not that big of a fan of the Zaan anymore. It is just so darn easy to open up the 21 and somewhat difficult on my thumb to open up the Zaan.

So, my question is (before I put this on the Exchange), does it get any easier with time to push the Zaan's lockbar over? Have I just been spoiled with the extra cutout on the Ti of the 21?

Thanks for you help.

**caveat- I am talking about one handed closing b/c there are no issues when closing with 2 hands.
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I don't have any issues, but I might have strong hands. ;)
 
Josh K said:
I don't have any issues, but I might have strong hands. ;)
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That could be it, everyone around me says I have limp hands :rolleyes:

It could just take some getting used to...I had the same problem with a Strider SMF that I didn't care for and then I developed a sort of callus that made it easier. Are you saying this never happened? Has it been as easy for you to open the Zaan as it has been on a 21?
 
I have no trouble opening the Zaan, it's just as easy or easier than my Sebenza. I did have trouble with the lockbar being really stiff when I try to close the blade. Its much easier to disengage the lock on my Sebenza than with the Umnumzaan.

Try taking off the pocket clip on the Umnum to see if it makes opening any easier.
 
mongomondo said:
Its much easier to disengage the lock on my Sebenza than with the Umnumzaan.
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That's really my question...it may just take getting used to it being more difficult to disengage and the reason I didn't notice it before was b/c the tension was too weak.
 
I sold my 'zaan because I couldn't get used to what I considered (emphasis on "I") considered ergos that were not as good as the large Sebenza - both opening and unlocking. I didn't get used to it and the knife found a new home. It is a great knife - it just wasn't a great knife for me. There are too many others to try to work around a knife that isn't working with me.
 
n2wilderness said:
That could be it, everyone around me says I have limp hands :rolleyes:

It could just take some getting used to...I had the same problem with a Strider SMF that I didn't care for and then I developed a sort of callus that made it easier. Are you saying this never happened? Has it been as easy for you to open the Zaan as it has been on a 21?
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I've never had an issues opening or unlocking my Umnumzaan.

Compared to my Lg. 21 I guess it could be a stiffer lockbar. I will say that my CRK framelocks are stiffer then any other framelock I've handled.
 
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