REPRINTED:

Tool list:

1. picks (like dental picks)
2. punch
3. phillips screw driver
4. sand paper (400 grit works well)
5. paddedvise

 First off you need to unload and field strip your pistol



Remove the magazine, then align the two lines on the rear of the slide:



Push out the slide stop



then pull it out





The slide will now pull off towards the front, removing the barrel and spring is not required for a trigger job



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next remove the grips using a phillips screw driver



remove the mainspring plug pin (under pressure, push the plug against a table or similar surface while doing this)





then carefully take out the magazine break like so lifting up and pulling forward:



Then release the mainspring plug



Pull out the plug and mainspring



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Next lift up on the sear spring



while lifting up the spring pull out the safety (helps if its on safe to give more to grab onto) The CZ-85B you have to pull out both sides of the safety



lift out the trigger assembly



Remove the sear pin





taken apart, be careful of the two small springs in it (sear spring and firing pin block lever spring)



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Next sanding on the sear. I use 400 grit paper and found it to be effective, while sanding I found putting the paper on a flat surface and carefully taking the sear across it the best way do sand it down, though other ways such as using a vise may also work. Also do not round any corners off!

The part to sand, this is after and it gives good trigger pull and weight. Do a little bit at a time to be safe, an note hammer engagement. When the trigger is pulled in single action, if the hammer moves back before releasing this is positive engagement (safest), if it doesn't move its neutral, and if it moves forward, negative (most unsafe). My goal is to have minimal postive engagement, though neutral may be desirable for a target oriented pistol)



Now reassembly of the trigger assembly (basically reverse order)



Leave firing pin safety lever spring like this for reassembly...



Then while carefully pushing lever towards its side move spring to its correct position



Reassembled



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Next is to get the hammer out

Push the safety detent plunger inward



and remove



next is to remove hammer pin retaining peg



Push up on it from here



then pull out from the top using tweezers



Push out the hammer pin



pull the hammer assembly out of the top



Shows the surfaces to be smoothed, also don't round any edges. I would recommend keeping the angles the same here too, can be angled backwards but I recommend against it, as it may cause negative engagement





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Reassembly is just reversed, but with a few helpful tips

Lift this spring when putting safety back in



then push back the safety detent plunger back far as you can, while pushing safety back in.



Then reversed order on the main spring and grips and slide.
The mainspring also may be changed too as well to help with trigger pull, especially with double action. I used a Cz-52 spring since I have extras and found them to be reliable, you can get the same effect as cutting coils off, but that is un reversible and you may make it too light, you can get lighter springs here:
www.gunsprings.com/SemiAuto/EAANF.html

Then as usual function test the pistol and safety.

I hope this helps make your CZ trigger much better.