Sudden drop in feet per second...!?

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They do make one for the bobcat, got mine yesterday. Same as the Royale one. (Factory one in bag)

1542981124_14629866245bf806042abae3.43528086_20181123_055158.jpg


https://www.airgunsource.ca/en/huma-air-fx-royale-regulator.html

One here up in Canada, closer than Europe anyways.
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Canada!? Never heard of it. 😊.

How come yours looks different than all the others!? It doesn't have the pressure marked in it...

Thanks, 

Kmd
 
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I had that problem with an FX Independence, it turned out to be the power adjuster. It seemed to work fine but the part attached to the wheel with the ports was loose and didn't line up how it was supposed to.
Click to expand...

Interesting... I wonder how hard it was/is to fix that!? Did you do it yourself?

Thanks, 

Kmd
Click to expand...

At the time I had no clue what was going on and a yellow forum member was kind enough to take a look at it, fix it and tell me the problem. It was as simple as lining up the holes, then tightening the allen screw that secures it
 
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They do make one for the bobcat, got mine yesterday. Same as the Royale one. (Factory one in bag)

1542981124_14629866245bf806042abae3.43528086_20181123_055158.jpg


https://www.airgunsource.ca/en/huma-air-fx-royale-regulator.html

One here up in Canada, closer than Europe anyways.
Click to expand...

Canada!? Never heard of it.
1f60a.svg
.

How come yours looks different than all the others!? It doesn't have the pressure marked in it...

Thanks, 

Kmd
Click to expand...

The Huma is in the gun now, this is the fx one.

1542993798_16110064305bf83786a42524.57388054_20181122_183819.jpg
Click to expand...

Ahhh, that explains it. Did you get a chance to test it yet!? How much "better" is it than the FX one?

Thanks, 

Kmd
 
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I had that problem with an FX Independence, it turned out to be the power adjuster. It seemed to work fine but the part attached to the wheel with the ports was loose and didn't line up how it was supposed to.
Click to expand...

Interesting... I wonder how hard it was/is to fix that!? Did you do it yourself?

Thanks, 

Kmd
Click to expand...

At the time I had no clue what was going on and a yellow forum member was kind enough to take a look at it, fix it and tell me the problem. It was as simple as lining up the holes, then tightening the allen screw that secures it
Click to expand...

I see. Thanks for the info. 

I had ordered the power adjuster from FX and thought I could install it myself, but I had a hard time taking the gun apart to get to it... Every video I ever watched on how to take the gun apart was missing this one crucial step, so I decided to let them do it, since I was sending it in anyway...

I am going to give them a call on Monday and see what they say. I am sure they would fix it for free (I really believe it has something to do with them working on it last), but what about shipping cost!?

Anyhow. We'll see. 

Thanks, 

Kmd
 
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EVERYONE will agree that the HUMA is better than the factory FX regulator.

Heck based on what I read here on this forum, you even get more shots!

That will be one less thing to have to worry about later on down the line.
I would pay to have a Huma installed since you are sending it back anyway.


CA
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I heard the same. However, I was just wondering by how much "better" his was... : )
 
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I sounds like your hammer spring adjuster nut has worked loose. As you shoot it, each shoot is getting slower and slower. Maybe by a small amounts after each shot. If the lock tight holding the Allen nut was to break loose, it would slowly work back out after each shoot causing the hammer spring to have less and less pressure. In turn allowing less hammer strike to the valve, in turn having less air flow thru the valve slowing down the pellet. I think you should add two turns to the hammer spring Allen nut and recronie your gun. If if show improvement your on the right track. After you get the hammer spring at the right adjustment lock tight it with a drop of red lock tight. Use a tooth pick to apply a very small amount to the treads and tip the gun in a manner to allow the lock tight to run into the treads around the nut. 

IF YOU TRY TO TURN THE HAMMER ALLEN NUT AND IT DOESNT WANT TO TURN EASY, DO NOT FORCE IT, please do not force it !!! You could strip the inside of the Allen nut. If you do strip out the nut, you'll need a very small cigar torch to warm the nut to a blazing hot temp to get the lock tight to release and a large easy out to back the nut out with. Dont worry the oring's can handle more temp then the lock tight can. The nut can be filed to the next larger size of Allen key or the nut could be replaced.




 
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Power adjuster isn't the same as this?



https://youtu.be/0egdml7RNt8

Click to expand...

BTW, I checked the video you send me and I now remember the issue I had, back when I tried once before to take the gun apart, in order to replace the power adjuster myself. I was not able to take the rail off. I can see though, that once the rail is off, my Bobcat looks exactly like the Royal, so taking the power adjuster out should be easy...

Thanks,

Kmd
 
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I sounds like your hammer spring adjuster nut has worked loose. As you shoot it, each shoot is getting slower and slower. Maybe by a small amounts after each shot. If the lock tight holding the Allen nut was to break loose, it would slowly work back out after each shoot causing the hammer spring to have less and less pressure. In turn allowing less hammer strike to the valve, in turn having less air flow thru the valve slowing down the pellet. I think you should add two turns to the hammer spring Allen nut and recronie your gun. If if show improvement your on the right track. After you get the hammer spring at the right adjustment lock tight it with a drop of red lock tight. Use a tooth pick to apply a very small amount to the treads and tip the gun in a manner to allow the lock tight to run into the treads around the nut. 

IF YOU TRY TO TURN THE HAMMER ALLEN NUT AND IT DOESNT WANT TO TURN EASY, DO NOT FORCE IT, please do not force it !!! You could strip the inside of the Allen nut. If you do strip out the nut, you'll need a very small cigar torch to warm the nut to a blazing hot temp to get the lock tight to release and a large easy out to back the nut out with. Dont worry the oring's can handle more temp then the lock tight can. The nut can be filed to the next larger size of Allen key or the nut could be replaced.



Click to expand...

Ok, but how do I adjust the hammer spring??? I am trying to google it as we speak, but so far nothing...

That said. I understand what you mean. Try turning the hammer spring to increase the fps. but if it will now turn easy, do not force it! Copy that...

Thanks,

Kmd
 
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Yes, The first the lower Allen nut in the picture is the hammer spring adjuster nut. it is the same nut that you'll put the lock tight in the threads when you've got it set where you'd like.

The Bobcat are in the same family as the Royal's (AKA 400,500 and boss), they share all the same oring's, barrels and body, only the stock and triger's differ, very close but the bobcat using linkage. As they adjust the same way.

You can leave the tank on and aired up, with pressure on the regulator is fine. Make small adjustments and be sure the gun's not cocked when adjusting. 

To adjust the hammer spring just turn the nut in or out with the 5mm Allen key, lock tight when happy. It doesn't take a lot of lock tight to hold the nut.

If adjusting doesn't make a difference in the FPS you have bent your pop valve. If you shoot to low in pressure you risk the chance of bending the valve. A very bad bent valve will leek air, if the valve is slightly bent the proformance of the valve will drop. In turn lowering your FPS.
 
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Yes, The first the lower Allen nut in the picture is the hammer spring adjuster nut. it is the same nut that you'll put the lock tight in the threads when you've got it set where you'd like.

The Bobcat are in the same family as the Royal's (AKA 400,500 and boss), they share all the same oring's, barrels and body, only the stock and triger's differ, very close but the bobcat using linkage. As they adjust the same way.

You can leave the tank on and aired up, with pressure on the regulator is fine. Make small adjustments and be sure the gun's not cocked when adjusting. 

To adjust the hammer spring just turn the nut in or out with the 5mm Allen key, lock tight when happy. It doesn't take a lot of lock tight to hold the nut.

If adjusting doesn't make a difference in the FPS you have bent your pop valve. If you shoot to low in pressure you risk the chance of bending the valve. A very bad bent valve will leek air, if the valve is slightly bent the proformance of the valve will drop. In turn lowering your FPS.
Click to expand...


Hey, thanks for the detailed run-down on how to do this. I appreciate it. I will give it a try and see what happens.

A bent pop valve sounds like a PITA. : ) I have no clue how this could have happened? I do not remember ever firing the gun with too low of pressure in it!? Anyhow, thanks for the input!

Kmd
 
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UPDATE:

I decided to take the gun apart and see if I can figure out what is going on. Before doing so, I did one last Chrono test and guess what!? The fps dropped even more! Not by much, but it did. At this point, it was pretty "obvious" that something was "loose".

I took the gun apart and the hammer adjustment screw was super loose. No resistance behind it at all. Just like Glem.Chally, Mrshosted and others suggested! Thanks for that!

I was stoked. Getting to the screw was really easy, and fixing it, is just a matter of grabbing an Allen wrench and screwing the screw back in. Well, that is in theory. I am not sure how, but I stripped the screw!

YES I DID!

I might not know much about air rifles, but trust me, I know how to use tools, and I am telling you, I did NOT use the wrong size Allen wrench!

Long story short, I just sent it to FX USA and have them fix it.

Thanks,

Kmd



EDIT: When I screw my air tank back on, so I can shoot the gun and see what my fps are, the reg did not right away go up to its set (140 bar) pressure. It took about 10 minutes before it was back at 140!? Is that normal? My air tank was at 210 bar...
 
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