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Murdamook

Joined
Nov 3, 2010
Messages
1,226
As some of you may remember, I had bad lock up issues on my 0560. Zt fixed it in 6 weeks and sent it back. I have had it for roughly a month now. A new problem developed about two days ago. The action is extremely gritty and the blade fails to flip using pressure on the flipper. It gets about halfway out. If I use wrist action it come all the way open. When closing and opening, the blade makes an extremely high pitched, metal on metal sound like breaks with highly worn pads. I have used detergent and hot water which didn't help. I have taken it apart and done a full cleaning and lubing two times and it fixes the problem for about 5 flips then it comes back. If I allow the blade to sit for a few hours, the problem will go away. Upon flipping it a few times the problem returns. The only anomaly I can detect is a small flattening of the detent ball. I don't know if this specifically is enough to cause this problem. I am seeing if anyone has experienced this before and knows of a quick fix that won't void the warranty. ZT had my knife for 6 weeks and I really don't want to have to send it in again and be 0560-less for another month and a half. At that point, they will have had the knife for 2.5 months out of the 3 months I have owned it.
 
Sounds to me like there's some crap in the bearings...I would take it apart and give the hole knife a thorough cleaning soap water and a tooth brush:thumbup:

I want to say two other things:

1. Taking it apart will not void the warranty.

2. The bearings will not all fall out if you take the knife apart, there held in a (nylon?) housing. (You might have already known that lol)

Good luck!

-niner
 
9blades said:
Sounds to me like there's some crap in the bearings...I would take it apart and give the hole knife a thorough cleaning soap water and a tooth brush:thumbup:

I want to say two other things:

1. Taking it apart will not void the warranty.

2. The bearings will not all fall out if you take the knife apart, there held in a (nylon?) housing. (You might have already known that lol)

Good luck!

-niner
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I am going to try this but I think the problem lies in the detent ball.
 
Try oiling the detent ball of you suspect it. The oil should help for a few opening of it's the culprit.
 
Murdamook said:
As some of you may remember, I had bad lock up issues on my 0560. Zt fixed it in 6 weeks and sent it back. I have had it for roughly a month now. A new problem developed about two days ago. The action is extremely gritty and the blade fails to flip using pressure on the flipper. It gets about halfway out. If I use wrist action it come all the way open. When closing and opening, the blade makes an extremely high pitched, metal on metal sound like breaks with highly worn pads. I have used detergent and hot water which didn't help. I have taken it apart and done a full cleaning and lubing two times and it fixes the problem for about 5 flips then it comes back. If I allow the blade to sit for a few hours, the problem will go away. Upon flipping it a few times the problem returns. The only anomaly I can detect is a small flattening of the detent ball. I don't know if this specifically is enough to cause this problem. I am seeing if anyone has experienced this before and knows of a quick fix that won't void the warranty. ZT had my knife for 6 weeks and I really don't want to have to send it in again and be 0560-less for another month and a half. At that point, they will have had the knife for 2.5 months out of the 3 months I have owned it.
Click to expand...

Many of them make that sound, does not hurt a thing, opening with a little wrist is OK. Why not just use it and not worry about the little stuff and then if there is ever a bigger issue send it back. If you bought it from me I will look at it , three days here and three days back, and if it needs to be exchanged, I can do that as well.

Dave
 
kershawguy said:
Many of them make that sound, does not hurt a thing, opening with a little wrist is OK. Why not just use it and not worry about the little stuff and then if there is ever a bigger issue send it back. If you bought it from me I will look at it , three days here and three days back, and if it needs to be exchanged, I can do that as well.

Dave
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It isn't a minor scrape that it made previously. It is actually difficult to close and open. The screech is extremely loud. I understand what you're saying. If the scraping sound was minor, I wouldn't stress it but it is very loud and extremely gritty. It feels like there are large grains of sand in the area tjay contacts the detent. I appreciate your response though, Dave.
 
Call kershaw and see if they can send you a new one and you send yours back when you get it. I seem to remember seeing someone was able to do that.
 
I am going to clean the bearings and see if that works. If it doesn't I will just call Kershaw tomorrow.
 
I used a toothbrush, q-tip, and shop towel. I cleaned it head to toe. Right after cleaning it, it was as smooth as glass. About 10-20 flicks later, it, once again, was extremely gritty. The high pitched squeal actually attracted my dog from the next room. I will be calling Kershaw tomorrow. Thank you all for the replies and the ideas.
 
Murdamook said:
I used a toothbrush, q-tip, and shop towel. I cleaned it head to toe. Right after cleaning it, it was as smooth as glass. About 10-20 flicks later, it, once again, was extremely gritty. The high pitched squeal actually attracted my dog from the next room. I will be calling Kershaw tomorrow. Thank you all for the replies and the ideas.
Click to expand...

Well darn...oh and I must say its impressive that you took it apart at 4:00 am and got it back together without screwing it up (I couldn't lol)
 
thijsco19 said:
Hmm, did you see scratches or any other damage on the blade?
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Nope. Other than the trail made on the blade from the detent which happens to every knife, there was nothing significant. There was a surface scratch but it was imperceptible when I ran my nail over it and it would only make contact with the detent for the millisecond it would take to push past it. The oddest thing: I can let the knife sit for an hour or so and it is smooth again. After five or so flicks, the blade is again gritty. It feels as though I am rubbing something on a rocky surface.
 
Murdamook said:
It isn't a minor scrape that it made previously. It is actually difficult to close and open. The screech is extremely loud. I understand what you're saying. If the scraping sound was minor, I wouldn't stress it but it is very loud and extremely gritty. It feels like there are large grains of sand in the area tjay contacts the detent. I appreciate your response though, Dave.
Click to expand...
Have you ever used loctite on the pivot screw? This sounds like something that happened to me with a different knife and ultimately I think some loctite got into the detente from the pivot screw area and then hardened. I cleaned it a couple of times with some of those alcohol wipes and it went away.
 
Murdamook said:
Nope. Other than the trail made on the blade from the detent which happens to every knife, there was nothing significant. There was a surface scratch but it was imperceptible when I ran my nail over it and it would only make contact with the detent for the millisecond it would take to push past it. The oddest thing: I can let the knife sit for an hour or so and it is smooth again. After five or so flicks, the blade is again gritty. It feels as though I am rubbing something on a rocky surface.
Click to expand...

Why don't you just send it to me for an exchange and we can quit messing around with it, just sayin.
 
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