CZ SP01 safety working improperly

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wildphil24

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I just bought a used SP01 shadow. It's my first CZ. It supposedly have a competition hammer and pre-b disconnect parts installed.

On mechanical check everything seems nice but the ambidextrous safety will only engage on double action. When the hammer is cocked the safety is locked in fire position. I felt this was impractical and a little search suggest the safety should only engage on single action.

Could this be caused by improper assembly of the firing mechanism?
Is it easy to correct or should I contact a gunsmith?
Am I missing something?
 
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Yup, something is definitely wrong with your gun. I would definitely take it in to a smith, or at the very lease try and research it myself and see if you can un-bugger it before you take it shooting.
 
LouF said:
You will have to search for it.
Click to expand...

I did search for it. Seems safety don't behave the same way in every pistol. But none reported my situation where it only engage on double action. And they don't say how easy it is to disassemble these components.

I can do a complete disassembly and reassembly of a 1911 but it's a long and difficult process. I rather bring the pistol to a gunsmith instead of a pile of parts.
 
we had this happen on a new spo1 shadow but not with the competition hammer.

required the replacement of the sear and sear cage.

pm Pilgrim on this site. he is an spo1 shadow guru and might be willing to talk you through a fix.

shadows are a little tricky to reassemble compared to a 1911 but not that hard once you watch a utube video or 2. thre are quite a few good vids online.
 
Ceezer and Slavex are CZ gurus. Maybe you can send them PMs.

BTW, check the sear for a small set screw. If there is a small set screw, then minor adjustment might be required. Otherwise, do not use the pistol for safety reasons.



Markit said:
we had this happen on a new spo1 shadow but not with the competition hammer.

required the replacement of the sear and sear cage.

pm Pilgrim on this site. he is an spo1 shadow guru and might be willing to talk you through a fix.

shadows are a little tricky to reassemble compared to a 1911 but not that hard once you watch a utube video or 2. thre are quite a few good vids online.
Click to expand...
 
This is a fairly common issue. I know a couple guys at my club have had the same issue. While I don't remember what exactly was causing the issue, or the fix, I do remember it had something to do with the sear engagement.
 
the safety can be engaged in half- or fullcock hammer position ONLY. If you are able to engage the safety when the hammer is fully down - its a flaw and must be fixed.

I know some guys do modefy the left safety to be able to engage the safety at "hammer down position", but I talked to the CZ factory guys and according to the
original design the safery must not be engaged when the hammer is down/forward......
 
We purchase a new sear and sear cage. The spo1 shadow was new and unfired (except for the factory test firing as they privided a target photocopy).

It was a QC issue in the cz. Someone at CZ was a little too enthusiastic when fitting the parts. The angle of the sear was way off.

It was cheaper and quicker to get new parts and fit them (A-Zone in Alberta had the parts to me in 2 days) and it took about 20 minutes to install them. If I sent the gun to the warranty shop it would have likely been gone for weeks if not months. I think the cost of the sear and cage was about $75 or so - going from memory.
 
With a used gun, most likely someone has fitted some parts and gotten a little enthusiastic doing so. Usually a new sear will cure the problem as they've probably removed too much of the leg that engages the cam on the safety. However, not always, some brainiacs file the safety to fit them. Not a good idea as the safeties cost more to replace. I've never had to replace the sear cage, but again, cheap part.
As for taking them apart, easier than a 1911 that's for sure.
Couple questions, does the safety engage with the hammer back? If so, does it stop the hammer from falling when you pull the trigger?

funny how i just spent 5hrs at the CZ factory today, wish I'd seen this thread while I was there.
 
The safety can be engaged in double action mode due to the change in the hammer geometry in the competition hammer. The sear is not cammed up as high with the comp hammer at full decock. To have the safety engage on full ####, you have to file the leg on the sear down slowly until it will engage, but not so far that it will allow the hammer to drop with safety on and a trigger pull.
 
I did my own and I'm not a pistol smith. I just used small files and a honing stone. CZ's are really nice and easy pistols to work on, they are not too complicated when you take time to watch and understand how the internals work and coordinate with each other. They are very technical, as it tolerance requirements to ensure proper functioning. I know they could be easily made to replicate a 1911 trigger pull, minus the linearity of the pull. Just needs a well fit, custom, disconnecter. This job just requires a lot of assembly and disassembly of the sear cage for proper function, I found it an easier job than replacing the trigger return spring, I've yet to figure and easy way to hold that darn spring in while you slide the pin in.
 
ActivShooter, no it won't engage when the trigger is cocked. Are you a in Czeck republic? Should I use the CZ warranty center or any pistolsmith?
 
There are two ways to fit Comp hammer: 1) fit safety leg on sear, and 2) fit pad on left safety that engages sear. Sear is about 1/3 of safety price but fitting takes 3x effort.
As far as I will say both are correct procedures and in both cases most fitting jobs would produce the effect where safety could be engaged with hammer in forward (not cocked) position.
The main thing is whether safety works with hammer in half-cocked and fully cocked position. The fact safety can be engaged with hammer down is not compromising anything.
Yes, safety is more expensive to replace but should not be required for 100K rounds thru the gun (or ever) and then you already spent how much on ammo? So, about $55 safety is nothing...
 
Problem solved, conclusion

The seller never replied to me and got the deserved trader rating.

I sent the pistol to CRAFM and Jeremy skillfully fixed it. I highly reccomend him for CZ pistol work.
Super fast and kind service. Cost me less than 50$.
 
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