I read through this post about doing a trigger job on an SP-01 in the CZ related Frequently Asked Questions, Gunsmithing/Maintenance section so I decided to give it a try:
http://www.czfirearms.us/index.php?topic=14688.0It was not such a bad experience for me. I got the sear cage out of the frame without much trouble. Then I put the sear cage in a plastic bag and punched through with a pin drift to remove the sear pin and it's little parts & springs. The Firing pin block lever spring is a amusing little thing to work with. Thankfully the plastic bag kept it from flying away. I also forgot to remove the hammer spring before removing the sear cage but the CZ pistol was rather forgiving of that blunder.
I did not really do much after it was apart other than true up the sear tip and hammer notch with a knife sharpening stone. I also lightly polished the surfaces on the bottom of the sear cage that bear on the trigger bar. The intention was to remove any burrs, not change angles
Reassembly was not all that bad except I pulled some more of my hair out with the tiny little Firing pin block lever spring. It did go back in place eventually, but it was certainly a bad hair day and a work out for the tweezers.
After I got it back together, the single and double action pulls seemed much improved and smoother. I did not weigh the single action pull before my work, but after reassembly it weighed in at about 4 1/4 pounds.
The CZ related Frequently Asked Questions, Gunsmithing/Maintenance section is a big help for do-it-yourselfers
Thank you for providing the valuable info
