Shadow Trigger not Reseting

[Smitty79]

I have a 9 year old CZC Shadow Custom SP-01 Shadow ( P/N 91030).    It has close to 100k rounds of USPSA minor ammo through it.  

 

Last week, the trigger was intermittently failing to fully reset during live fire.    This could happen shot to shot or after I manually decocked the hammer on a loaded chamber.    I field stripped it and cleaned it and could not recreate the problem in dry fire.   Back to the range this week and the problem is still there and happens most of the time.    I still couldn't repeat the problem dry fire.    The next morning and It's 100% failure in dry fire.

 

The gun has a CZC short reach trigger kit in it.   That's been in for about 7000 rounds.    I put this in when I decided to change my finger position on the trigger.   It also has a CGW adjustable sear.    I put this in about 1000 rounds ago when it seemed that the original sear had worn out.

 

[CClassForLife]

Assuming your springs are good, then perhaps there's some binding on the removable trigger pin. Try placing a drop of oil on the trigger return spring and trigger shoe areas.

 

Some footage of your problem would also help others diagnose.

[Nathanb]

Change the springs. My first thoughts are sear spring. I’d also check the sear adjustment to make sure it’s still where it should be but I think that’s less likely. 
 

Did you have to fit the sear at all?  
 

next would be the trigger reset spring. 
 

Also make sure the trigger bar is still in square and hasn’t been warped or tweaked or cracked etc. 

 

is your trigger over trvsel screw still in if it has one?  Has it worked itself into the way. 

[robertwyatt]

Make sure your springs are all in working order. But also check your lifter spring to make sure it's still pushing the trigger bar up properly.

[teros135]

1 hour ago, robertwyatt said:

Make sure your springs are all in working order. But also check your lifter spring to make sure it's still pushing the trigger bar up properly.

Also check the screw that secures the lifter spring and mag release spring.  It's normally staked from the factory, but if it's ever been loosened and not re-staked it can work loose, the trigger bar won't lift, and the hammer won't go back.  (I should have paid better attention to that a couple of years ago... )

[HesedTech]

4 hours ago, Smitty79 said:

I field stripped it and cleaned it and could not recreate the problem in dry fire.

Have you done a really full deep cleaning of the gun? I have a couple of Shadow 2s and my son has a SP01 and they all seem to be a bit more sensitive to grit and carbon than other brands we own. Also check for worn parts, trigger bar, disconnector, sear, the ramp (under the sear) where the disconnector rides on...

 

 

Edited May 27, 2022 by HesedTech

[Smitty79]

I disassembled the gun down to a bare frame and cleaned it.    Then I put it all together and compared things to my other Shadow.    Seems very clear that the lifter spring isn't as stiff as the spring in my other gun.    Everything else looks good.    I am surprised that the spring went from fully functional to non-functional as fast as it did.

[robertwyatt]

On 5/30/2022 at 7:11 AM, Smitty79 said:

I disassembled the gun down to a bare frame and cleaned it.    Then I put it all together and compared things to my other Shadow.    Seems very clear that the lifter spring isn't as stiff as the spring in my other gun.    Everything else looks good.    I am surprised that the spring went from fully functional to non-functional as fast as it did.

A lot of people say the same thing about their car shocks. They just wear out over time and you never really notice it until it (suddenly) is bouncing all over the road. I'm glad you were able to figure it out though!

[Smitty79]

I put in a new lifter spring.   Ran fine for the 92 rounds I took to the range.    When I did my normal unload and show clear before bagging the gun, it didn't work.    I popped off the slide and found that the lifter spring was slipping out from under the trigger bar.    I think the trigger bar has worn out some.   Time to order another part.

[Tunachaser]

Maybe after 100K rounds it's time for retirement...LOL.

 

The Shadow not you.

[Smitty79]

On 6/10/2022 at 8:07 AM, Tunachaser said:

Maybe after 100K rounds it's time for retirement...LOL.

 

The Shadow not you.

I am getting towards this attitude.

 

That said, I bought a new trigger bar and can't get it in.    The old one takes a little finesse.   I can't make the new one work.    Any help?

[HesedTech]

1 hour ago, Smitty79 said:

Any help?

Did you goto youtube?

I'm not sure what problem you're having, but the bar swing and the trigger return spring are often issues.

This might help:

 

[yigal]

For this reason when designing such a mechanism leaves room for a flat washer, which prevents this problem. Therefore when assembling this spring  you need to be skilled for the assembly to be correct without f. washer.

[Smitty79]

I had already watched this particular video.   I did miss the angle he put it in at.   That helped.    I can't get the trigger end of the trigger bar into the gun far enough to put in the trigger pin to hold the trigger in the gun.

 

[HesedTech]

4 hours ago, Smitty79 said:

I can't get the trigger end of the trigger bar into the gun far enough to put in the trigger pin to hold the trigger in the gun.

Take the hammer and disco out. You should then be able to lower the trigger into place and your only issue will be getting the return spring set as you put the pin back in. 
 

Hammer and disco are installed after the trigger bar.  Then you can either install the sear and cage or the hammer spring.

Edited July 3, 2022 by HesedTech

[Lee64]

One trick I found is once you have the trigger bar spring in place and snugged down, back off the screw barely enough to get the spring ends to float just off the wall of the frame. The reasoning is when you tighten it the spring naturally rotates into the left wall, and will try to jump the tracks during shooting sessions. Once adjusted, If you invert the frame you can see the spring riding easily in the grooves of the trigger bar. Then you can adjust the vertical position of the legs as seen in the video.