Huben GK1 Issue Happened Today

[maxtrouble]

Was shooting my GK1 today. I have it setup for a mere! 16 fpe and my tank was at 4k. Had it tethered like always. Last shot sounded strange then the air started exiting the barrel. Will no longer hold air and the magazine rotates with or without the lever up or down. Safety will not engage. Dammit.

How did I manage to screw up the pistol? I have maybe 1k pellets through it. Dammit.

 

[miksatx]

Pretty sure you didn't mess up any thing. Check page 6 in the manual.

 

[Deleted member 58109]

did it drop below 1500 psi if so mine drains out of the barrel starting at 13 1500
always fills though

 

[maxtrouble]

Pretty sure you didn't mess up any thing. Check page 6 in the manual.

I checked the manual earlier. My magazine freely rotates in either direction. Doesn't feel bound or tight. Oh well. I am sure there is an easy solution.

https://www.hubenairguns.com/download/GK1%20Manual%20-%20English.pdf

 

[miksatx]

I checked the manual earlier. My magazine freely rotates in either direction. Doesn't feel bound or tight. Oh well. I am sure there is an easy solution.

https://www.hubenairguns.com/download/GK1%20Manual%20-%20English.pdf

Is yours a V3? You need to reset the striker.

 

[maxtrouble]

Is yours a V3? You need to reset the striker.

Thanks for the tip. Yes, it is a V3. Any idea how I screwed up the striker? Is this common?

 

[Ezana4CE]

Thanks for the tip. Yes, it is a V3. Any idea how I screwed up the striker? Is this common?

@maxtrouble I’m curious about this as well.

 

[miksatx]

Thanks for the tip. Yes, it is a V3. Any idea how I screwed up the striker? Is this common?

Seems to be a common issue with V3. My V3 .25 the did it 3 or 4 times. I had 1 350 bar dumpand 1 150bar dump. Getting a warranty replacement breech hopefully soon.

 

[maxtrouble]

Seems to be a common issue with V3. My V3 .25 the did it 3 or 4 times. I had 1 350 bar dumpand 1 150bar dump. Getting a warranty replacement breech hopefully soon.

Well, I finally fixed my striker. Not too difficult, my spring was broken. Pushed it forward and installed the new spring. Installed aftermarket loading gate, looks cool. Filled it up to 250 bar. Loaded up the magazine. Took three shots, a pellet got lodged between the magazine and pistol. Another complete air dump.

Dislodged the faulty pellet, tried to fill, no joy. Air pours out of the barrel. Removed aftermarket loading gate, reinstalled default loading gate. Checked the striker, seemed normal. Safety works. Reassembled and still will not take air.

Emailed my dealer.

Harumph.

 

[longdog]

What pellets are you trying to shoot?

 

[maxtrouble]

What pellets are you trying to shoot?

I have been shooting H&N FTT .22 553's @ 700 fps with great results. No issues until yesterday.

 

[Aldebaran]

I got the same problem. I cant fill gun due to air leaking also. I checked all seals and still not working...$1300 PAPER WEIGHT!

 

[WobblyHand]

I got the same problem. I cant fill gun due to air leaking also. I checked all seals and still not working...$1300 PAPER WEIGHT!

Has to be either a seal, or a cracked part. Did you selectively paint the GK1 with bubble solution to pinpoint a leak?

I had issues with resetting the striker, but seemed to fix that. Took me a couple of times to get it right. When the striker has not been reset, you cannot put the gun on safe. You really have to push the striker hard to reset it. At least it seems for me, I needed to fire a round to complete the process. A dry fire kind of undoes your work. Once set, then you can dry fire.

Airing up the GK1. It could be your probe o-rings are torn, cracked or have dirt on them. Or maybe even the connection to the foster fitting has problems.

Have you ever had your GK1 apart? If so, there might be a piece of crud on an o-ring, or a tiny crack in it. If you can isolate what you worked on, or where ever there were soap bubbles, it might help.