Help, FX Maverick won't fire

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dastardly

Member
Aug 13, 2022
14
3
Prague, Czechia
Hi, I am at my wits end here!

So, I decided to fine tune the hammer spring; turned power wheel to the adjusment aperture (uncocked gun), gave it one CC turn - forgot to turn the power back to 7, cocked & fired. Surpised at the (obviously) abysmal result, I repeated once more before I realized my mistake. So, after two shots in the adjustment position, I finally returned back to setting 7, and tried to fire - nada. The trigger is dead; i.e. I squeeze, nothing happens, i feel it bottom out & spring back a bit when I release it, but hammer does clearly not get released.
I even - with a heavy heart, since the gun was cocked - turned the wheel back to the adjustment position & then the adjustment screw to the original setting; didn't change the situation one iota. Nor did trying to operate the rear end of the trigger assembly directly.
So now I have a cocked gun with no idea how to depressurize the plenum, nor how to proceed from there. Can I carefully open the second reg adjustment screw & bleed the pressure that way, or will the screw just pop out at full pressure and kill someone??
Any help/advice/thought is greatly appreciated! Am on my vacation, planned to do a lot of tuning and test firing all week long, really bummed out right now!
 
I would unscrew the bottle and slowly turn the plenum gauge to depressurize first and foremost (this is how I have always depressurized my Mav). Beyond that, you'll have to try and avoid destroying your valve by preventing it from dry firing as you have the chassis removed to get at it from the trigger assembly to uncock it. That lever needs to stay back while you're doing this, but it also needs to be able to give way once you get the sear to release the hammer.
 
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@ mntGhost: I'll have to call you Mr. Holmes, as the pressure gauge depressurizing is such an obvious step I'll havbe to concede it is practically obvius (read "elementary"). However, for some reason it is not mentioned anywhere in the official manual/video guides, nor anywhere in the unofficial ones - at least so far as I have seen.
Anyway, great help - got it depressurized, now the hammer functions correctly; beyond that, will have to wait until tomorrow. Just elated I got the main catch "uncatched"!

@Tobbe77: Yeah, tried that almost straight away, to no avail, but thx for the tip nevertheless :)
 
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So, update time:
Don't have a definite diagnose, or an entirely satisfying answer to the exact mechanics of what got stuck on what, but the root cause seems to me have been a fine adjusment screw turned way too far out by the manufacturer, and my
According to this video by Airguns of Michigan, the fine adjustment screw should not be turned out much more than 6 mm; measured today, and mine was at 6.9 mm -that's after returning to original factory settings. My adjustment yesterday must have landed me at about 7.5 mm... Soo, a word of warning!


Also, a tale of stupidity for general amusement:

After I got the trigger/hammer action working again, backed down the screw to 6 mm, repressurized the rifle and tried a test shot - bam, the same problem again! Trigger felt exacly the same spongy, irresponsive way.

Was already sat at the computer about to cry my heart out on here, when I realized the sad, sad truth:

I 'd left the safety on.

So, for this day, I bestow upon myself the honorary title of Supreme Idiot!



@elh0102: Yeah, thanks, but I really don't think they care about techsupporting some Eurotrash, and FX Sweden is much nearer to my location anyway! ;)

@Tobbe77: Hello to Gävle från en f.d. Stockholmare!
 
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To follow up - I made an oopsie again, see this thread:

Broke my Maverick, again!

So I managed to break something, again. Half an hour after fixing my original problem (see my previous thread). I decided to finally swap calibres/barrels, from my original .22 700 mm (28″), to .30 500 mm (20″). Replaced my hammer weight from my Huma-Air 13.2 gram to the 14.5 gram option from...
www.airgunnation.com www.airgunnation.com
 
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elh0102 said:
Call FX USA and try to get one of the techs. FX is a good news/bad news story regarding support. It's better than most, and you're probably going to need it!
Click to expand...
FX USA simply SUCK when it comes to their "customer service"... So yeah, mine is a "bad news" story and I won't get it to it here. But, with three FX guns now, FX USA didn't stand behind their warranty (and these were warranty issues, and the dealer was scratching their heads too and took the Maverick back I purchase. Two Maverick's outta the box that were not right) and the last go around, well I'm still waiting on a call back from them... It's been two months.
 
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Alfonsmucha666 said:
Hi, this happened to me today too, I load my Maverick and I can't shoot anything. What to do? Thanks for the reply
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First thing to TRY to do is de-cock the rifle by doing this:
Pull the cocking lever all the way back and hold it there.
While holding the cocking lever all the way back, remove the magazine.
While still holding the cocking lever all the way back, pull the trigger and slowly let the cocking lever move back to the full forward position.
If the safety is on, obviously you won't be able to pull the trigger, so the safety has to be off to de-cock the rifle.

If you manage to get the rifle de-cocked and the magazine removed, then you still probably have a slug/pellet in the breech which will have to be dealt with.

Let us know how it goes. It's not a solution to keeping the problem from happening again, but it's a start.

stovepipe
 
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Alfonsmucha666 said:
Hi, this happened to me today too, I load my Maverick and I can't shoot anything. What to do? Thanks for the reply
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Need a little more info.

What was going on with the gun before you loaded it? What do you mean you can't shoot anything?

Is there air in the gun? Safety off?

If you were tuning, turning the hammer spring micro adjuster out (CCW) too far will cause the gun to not be able to cock.
 
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Reg Creep said:
Need a little more info.

What was going on with the gun before you loaded it? What do you mean you can't shoot anything?

Is there air in the gun? Safety off?

If you were tuning, turning the hammer spring micro adjuster out (CCW) too far will cause the gun to not be able to cock.
Click to expand...
Yeah what he said. One turn of the micro adjuster is 1mm, you have maybe 5 turns from all the way in to oh darn it's not working. This is an old thread but use a cleaning rod or a plastic rod, my personal favorite and knock the pellet/slug out from the muzzle, then hold the trigger and hold the cocking handle back in, if that doesn't do it then......pop off the HSA, watch for the little ball, it's all going to be under tension and pull out the HSA, turn it a few turns in and reassemble, again be careful, it should allow the sear to engage. You can turn the screw in under tension without disassembly, you only need 1/2 a turn CW is my guess but rotating the HSA will be under tension when you get to the little adjusting hole, it's possible to score the HSA. The overall height of the micro adjusts is about 18.7 to 20.5 mm, 21mm bad things start to happen.
 
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