All Springer/NP/PCP Air Gun Discussion General > Turkish AirGun Gate
Hatsan 95 Quattro Trigger
Ronno6:
I reassembled a 95QE Vortex after converting to a Crodman NP2 gas spring.
During reassembly I TRIED to keep the pins in the trigger assy from falling out, but............
One that did was the trigger pivot pin.
I just reinstalled it but missed one hairspring detail.
The 595 Quattro trigger has a part ahead of the trigger that I call a "pork chop."
I don't exactly know what it does or how it does it, but it is held in position bu a torsion spring about the size of a hair......
One end hooks into the pork chop, the other (so I have gathered) needs to be positioned under the trigger pivot pin (under when the assembly is on its back)
Otherwise, the trigger will not latch
Ask me how I now....
The pork chop is not depicted on mikeyb's avatar.....
mikeyb:
Not needed to show basic trigger operation. Neither are the springs.
AFAIK the "porkchop" seems to be some kind of impact/bump safety so sear levers can't move to fire rifle unless trigger is rotated towards firing.
https://www.gatewaytoairguns.org/GTA/index.php?action=media;sa=media;in=7820;preview
https://www.gatewaytoairguns.org/GTA/index.php?action=media;sa=media;in=7479;preview
If the porkchop spring is in the wrong location it won't operate as intended. If the porkchop doesn't rotate when the trigger is pulled it won't allow that "green" sear lever to move to fire.
Try reassembling trigger again ;-)
Edit: I think this condition (porkchop spring in wrong location) may be one of the primary reasons the trigger blade casting gets BROKEN. You can pull REALLY HARD on the trigger blade trying to fire the rifle. At some point frustration sets in, because we KNOW the trigger SHOULD work, and we pull hard enough to snap the cast pot-metal trigger blade.
Ronno6:
Before discovering the correct location of the torsion spring leg under the trigger pivot pin,
the sear wouldn't latch.....
All working fine now, and maybe a tad wiser for the experience.
I wish that Hatsan used pivot pins with C-clips on them to prevent the pins from falling out.........
That's save a bunch of problems..for me anyway..
Ronno6:
When out of position, the pork chop prevents the tertiary sear from dropping in front of the intermediate sear, thus keeping the intermediate sear from catching the primary sear and latching the piston..............whew...
mikeyb:
--- Quote from: Ronno6 on August 13, 2023, 10:12:08 PM ---When out of position, the pork chop prevents the tertiary sear from dropping in front of the intermediate sear, thus keeping the intermediate sear from catching the primary sear and latching the piston..............whew...
--- End quote ---
I believe that is another valid problem when the "porkchop" gets out of position.
I just tested one of my Quattro trigger groups by completely removing the porkchop and its spring. The trigger group worked normally as expected. I DON'T advise people remove these parts because I'm not 100% certain it is safe. My current theory that it is only a "bump" safety may be missing some other critical function. What I do know is that Hatsan added it to the trigger group to solve some problem.
Edit: When working on my Hatsans with Quattro trigger groups i put small "tight fitting" o-rings on the pins to keep them from falling out. I have at least one rifle where I left the o-rings in-place after assembly. So far the o-rings have not jumped off the pins and caused problems, but I cannot guarantee that will never happen.
https://www.gatewaytoairguns.org/GTA/index.php?action=media;sa=media;in=7481;preview
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