Cpm-m4 556 - Update - Broken Spring.

Yikes, sorry to hear that. Hope the fix isn't too complicated.

how about getting some new scales and change it all together? =)
 
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Finally took it apart:








And new spring installed……



So I tried guitar strings. It works but its lame compared to the original springs.

Kevin
 
I don't know Rev. It's larger than the original spring. It's the biggest that would fit in the slot of the lock bar. Larger fit into the hole of the scale but not the lock bar.

The larger had equal spring but would not fit.

Kevin.

Btw, guitar string just isn't the same spring steel.
 
richstag said:
I don't know Rev. It's larger than the original spring. It's the biggest that would fit in the slot of the lock bar. Larger fit into the hole of the scale but not the lock bar.

The larger had equal spring but would not fit.

Kevin.

Btw, guitar string just isn't the same spring steel.
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Is guitar string too soft? Would benchmade send you a spring?
 
You already had a spring break?!!!

Never mind. I had to read back a few posts. Seems the axis lock gives up a bit in longevity for functionality. While I've not had a spring break in any of mine, that certainly seemed quick for yours.
 
I was hoping if I called them at this point maybe they would send me a few extra springs.

The one thing I don't get is I was under the impression that your not supposed to take these knives apart for warranty but I feel if I had kept this clean the spring would have had a better shot.

With my EKI and CRK knives I took them apart and cleaned them after really messy outings.
 
Yeah lint and gunk builds up quick in the area where the spings are. I usually air blast the the insides from time to time to help keep stuff out and wipe down the rest of knife.

When the knife starts to get dirt and crud building up I just run knife under warm water and use some soap to get the worst out and clean the scales then blast the insides with Birchwood Casey synthetic safe gun scrubber. This usually gets it squeaky clean without having to disassemble. Then ill lube entire knife head to toe with CLP and let dry.

Every once and a while removing the scales and taking the knife apart to really clean each part it is not a bad idea.
 
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I'm curious. Is there a place you can just buy some extra springs? Reason being I have my first Benchmade and have a few threads about broken springs. If I have a spring break I hate the thought of doing without the knife while its sent in.
 
This almost seems like a perfect idea for an aftermarket guy. Maybe they could make them out of something even better. Sell them decently affordable. I would buy a bag...

kyhunt said:
I'm curious. Is there a place you can just buy some extra springs? Reason being I have my first Benchmade and have a few threads about broken springs. If I have a spring break I hate the thought of doing without the knife while its sent in.
Click to expand...
 
richstag said:
This almost seems like a perfect idea for an aftermarket guy. Maybe they could make them out of something even better. Sell them decently affordable. I would buy a bag...
Click to expand...

More's the reason to have a backup or two. That solves the problem of sending that one knife up for service. On the springs, I hope to never need to buy a bag of them, never mind voiding the lifetime warranty. There must be a fix for this one weak spot; I've never had anything else fail on an Axis-based knife.
 
Well I just got my first one so cant get a back up yet. So does replacing the scales on these also void the warranty also? I'm new to benchmade knives. I've heard of them for about 15 years but just received my first one. My folders up to now have always been more traditional.
 
Anything not stock will void their (Benchmade's) warranty, not that it stops many of us from buying custom scales from Keyman and others. In many ways the upgrades actually increase the value of a knife, IMO, as well as personalize them.
 
Thanks. As I said kind of new to Benchmade. I've seen some of Keyman's work and would be interested in it down the road. I'm kind of venturing into the Benchmade water since I have several good fixed blades and a good amount of traditional folders.
 
Well, I take mine apart, clean them good, and oil them.
I know one guy that has had an original 710 for 15 years now, his only EDC, and never had a problem. Maybe BM is starting to "cheap out."
 
Times change. Costs rise. But still, these guys are in Oregon City, staying true, have ditched just about everything in their lineup not made in USA. That's rare these days. Under pressure to build the orders and ship them out things happen, and while customer service is nearly a thing of the past, that's not happening with the support for these knives. (and I hope to never read "So Far.")

Knowing a real person, more likely with a family to feed, assembled my knife, and actually makes a living doing that always reminds me to be patient and courteous when dealing with them. As said there's not one time over these years where I was not taken care of in the process of "Knife Itself" and hope it stays that way. I can live with a broken spring, knowing it will get fixed if it needs fixing.
 
I don't think Benchmade makes cheap knives at all. I still EDC my 2013 shot show Griptillian. All I am saying is if a custom maker put out upgraded springs I would buy a bag for all my knives. Also, I will be taking my shot show apart to clean when I know it's gotten filthy. Compressed air just doesn't clean out inside like taking it apart.

I have a lot of respect for Benchmade putting out the knives they do. I can't find many knives out there with a 3d machined G10 grip, stainless liners, phosphorus bronze washers, cpm-m4 blade at 62-64hrc. All made in USA at that. Benchmade is ahead of most makers Imo. It's just I had a broken spring and look for alternatives for the future.

Kevin
 
When you guys take them apart do you use the Benchmade tool you can buy or just regular bits? I think its kind of odd for them to sell a tool to take them apart if they don't want you to take them apart.:D
 
I was using an old gunsmith's kit. I bought a new set with individual drivers that are teflon coated. No chance of scratching the coating.

It's such light torque it doesn't really matter though.

Kevin
 
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