GTA
All Springer/NP/PCP Air Gun Discussion General => European/Asian Air Gun Gates => Turkish AirGun Gate => Topic started by: Phoebe on December 13, 2018, 08:25:53 PM
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What's the worst that can happen if you back the rearmost adjusting screw ("Screw #3") out too much?
BTW, thanks all for tolerating my noob posts. This is the only place I can get intelligent answers.
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It falls on the floor, you search for it but can't find it.
Next morning the Wife walks through the room barefoot and finds it!
Ambulance is called to take you to the ER after she beats you senseless.
If you want to know if it will damage the Gun?
Only if she beats you with it.
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Isn't there a point where there's not enough pressure on the sear to set?
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https://www.airgundepot.com/understanding-the-quattro-trigger-adjustments-article.html (https://www.airgundepot.com/understanding-the-quattro-trigger-adjustments-article.html)
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Already saw this/thanks. But I'm still curious about what happens to the firing cycle when it's backed out too far. Is it insufficient pressure on the sear to hold the gun cocked?
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Wull, it sez right there in the article
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In this picture you can see the screw in the bottom right corner.
(http://i979.photobucket.com/albums/ae272/ezman604/STINGRAY_QUATTRO_TRIGGER-1.jpg)
It adjusts the amount of pressure on the trigger pull. Removing it will only lighten the pull so much.
The spring will NOT fall out even with the screw completely removed.
I changed to a lighter spring myself in all my Quatrro triggered guns.
I also made sure to bump test each one after changing the spring! I can't stress the bump test enough!
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Jeff,
Thanks. I was looking for any further insight before I start to tune/tamper. When you say "bump test" I'm assuming it's the same as with a real firearm, meaning give it a reasonable jarring from the the butt, etc.?
Appreciate your answer.
Steve
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One more thing, when you take the action out of the stock, be careful that the pins holding various parts of the trigger do not fall out!
Ask me how I know.... :D
-Y
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Replace the screws in the trigger with longer 3mm hex screws and round the ends, this will give you some more adjustment
but I could only reduce the pull weight to 3 lbs. So it seems the spring mod suggested will get you below 3 lbs.
I found the trigger good with a clean break but was not a fan of the setback trigger blade
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Replace the screws in the trigger with longer 3mm hex screws and round the ends, this will give you some more adjustment
but I could only reduce the pull weight to 3 lbs. So it seems the spring mod suggested will get you below 3 lbs.
I found the trigger good with a clean break but was not a fan of the setback trigger blade
On the quattro trigger, when pulling the trigger try pulling up at an approx. 30Degree angle. It will reduce the felt pull weight quite a bit. Similarly, have your trigger finger rest on the trigger guard and follow its contour until shot releases. Hope this helps...
-Y
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Steve,
Yes on the bump test. Knock it around in a reasonable way to be sure it is safe.
And for your sake? If you take that rear screw out DON'T drop it on the floor and loose it!
Although I did not receive a severe beating? The wife did find it with her bare foot.
:o
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Jeff,
Your picture was a big help. Worth a thousand words as the wise men say.... Would be even better if it could be simulated/animated!
Again, gracias!
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Replace the screws in the trigger with longer 3mm hex screws and round the ends, this will give you some more adjustment
but I could only reduce the pull weight to 3 lbs. So it seems the spring mod suggested will get you below 3 lbs.
I found the trigger good with a clean break but was not a fan of the setback trigger blade
On the quattro trigger, when pulling the trigger try pulling up at an approx. 30Degree angle. It will reduce the felt pull weight quite a bit. Similarly, have your trigger finger rest on the trigger guard and follow its contour until shot releases. Hope this helps...
Steven......Here is a picture on this method of trigger pull that Yogi has described for the Quatro Trigger.
Best Wishes - Tom
Click the pictures to enlarge the image :
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Thanks, Tom. Has the blade in that picture been shortened?
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Thanks, Tom. Has the blade in that picture been shortened?
Not that I know of...... Steven. I don't think so... but... I really can't say.... 100%, for sure.
I copied it from another post, three years ago.
Here is a picture of the Quattro Trigger on one of my guns. I have the black trigger and not the Gold.
Best Wishes - Tom
Click the picture to enlarge the image :
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Jeff,
Your picture was a big help. Worth a thousand words as the wise men say.... Would be even better if it could be simulated/animated!
Again, gracias!
I have a Quattro trigger sitting in the other room. Maybe I'll do a stop motion type deal with it.
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That would be SWEET!
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Basic idea is to picture your finger on the trigger, tip of thumb on the butt under the safety, then picture pulling your finger up and back to meet your thumb instead of just pulling straight back. Once you get used to the motion and yes, it's a little strange at first, you'll find it takes less effort to pull.
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Like the artillery hold, maybe we can call it the Quattro Pull? ;D ;D ;D ;D
-Y
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Take a dremel to the shoulder of that first screw... go slow and (if you have one) use a die to chase the threads.
(https://c2.staticflickr.com/8/7897/33213768898_f53fb0ef19_c.jpg)
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Jeff,
Your picture was a big help. Worth a thousand words as the wise men say.... Would be even better if it could be simulated/animated!
Again, gracias!
Ahh grasshoppah, you have asked to see a Quattro trigger animation. That request "triggered" my airgun related compulsion to see one also. I have been wanting to do this one and had a little free time today. Too cold to shoot, but time well spent regardless. NO springs, safety, or adjustment screws. Just the basic parts in motion. Best I can do with my current computer and time schedule.
Link to full size animation as it is too large for upload here. https://drive.google.com/open?id=1mYUTK5ZDal4iC0ufrGuyTvlRGo9_C6jn
A single frame is small enough to post below. (edit... added overlay image)
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Take a dremel to the shoulder of that first screw... go slow and (if you have one) use a die to chase the threads.
(https://c2.staticflickr.com/8/7897/33213768898_f53fb0ef19_c.jpg)
Why?
-Y
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Take a dremel to the shoulder of that first screw... go slow and (if you have one) use a die to chase the threads.
Why?
-Y
I think grinding the head/shoulder effectively "lengthens" the first screw. The danger of doing that is the first screw reduces the resting sear overlap (second stage travel) and IF it is adjusted too far in, it will cause a dangerously light hair trigger or possibly a failure to cock. Bump testing is critical here if first screw depth is increased.
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Why not just buy a longer screw? :-\
-Y
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Why not just buy a longer screw? :-\
-Y
haha, well why not just buy a Weihrauch HW98!
First, I wanted it to shoot better immediately... not after two day shipping, not after a trip to the store. Sometimes, at 11:00pm in the garage on a cold night you have to just make due with what you have. Second, the factory screw is rounded on the end for smooth sear engagement, so the 'bought' screw would need to be modified anyway for proper function.
Third, as mentioned by mikeyb, this is potentially dangerous modification. I wanted to take no chances that the screw could be turned in too far, so again, any bought screw would need to be cut to length or shimmed with washers.
The bottom line is, I read the posts on tuning the quattro and watched the ellington videos, but in the end, shaving the shoulder worked great for me, took ten minutes of my time, none of my dime. I'm proud of it, and I really hope it helps somebody else down the road.
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When you're trying to lengthen a screw by your method, chuck it in a drill press and use a file as a cutter to get a much cleaner job decreasing the thickness of the head. ;)
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Already saw this/thanks. But I'm still curious about what happens to the firing cycle when it's backed out too far. Is it insufficient pressure on the sear to hold the gun cocked?
This is what can happen.Ive been the one to learn this first-hand.I have a 125 sniper .25 read the trigger adjusting article and carefully did mine, gun shot maybe 50 times and then after cocking to shoot again "nothing,notta, acts like it was never cocked.Been almost two years finally got tired of finding a person to fix and contacted HatsanUSA.Sent me a RMA # and its on the way to them.Also sent a new spring with it seeing how mine is surely toast.Dont adjust trigger if not 100% positive of your knowledge of it!!Just Saying.