Help me with Chinese pump disassembly...

[ackuric]

Pretty much every single thing you cited is a disclaimer primarily to prevent users from producing detonation in their rifles, you know this right?

Even the Air arms disclaimer about hand pumps specifically states just to use dry paks. and no where does it state warranty is voided...



Please man, calm yourself.

Also the lines I provided from the first three examples I could find are not about detonation. You are reading on other lines. Also, every warranty states that use of normal wear and tear will not be met with repair, so if you are using a hand-pump and introducing elements into your rifle that otherwise wouldn’t have been introduced, at the very least you are causing the wear and tear of your rifle to increase many times over a standard HPA tank.



Anyway I’m done with my 2cents.

You're wrong, its clearly a disclaimer about detonation and possible corrosion from dirty air regardless of fill source, be it hand pump or compressor (compressors can spit out dirty air too you know?)



You have something against hand pumps, suit yourself...don't go spreading misinformation to the likes that they void warranties...and then back peddle when you're called out for being wrong.



Any methods of compressing air require proper removal of moisture, and being that you don't have enough grey matter to know this, I am done correcting you.

 

[Guest]

Nah I’m not wrong. I don’t use compressors I go and get dry nitrogen, but yes I’m aware of that compressors put out moisture too (hence my using dry nitrogen which has the added benefit of being an inert gas). I’ve used high end precharged tools for a long time and know a bit about this. You have to have filters on an output as there is no way to introduce one on an input of a handpump, and my point is that moisture will go inside the handpump. As for the gun, filters will assist but not eliminate. There are better voices than mine on this matter, like Joe Broncato here:https://podcasts.apple.com/us/podcast/prm-052-air-rifles-with-joe-brancato/id1102064713?i=1000386028042

The great thing about listening to him is he is an engineer and knows a great deal about this stuff, far more than you or I. Also, he owns ExpertHPA an airgun store, which does deal with warranty issues a lot. I bet he knows something of which he speaks. You can look at minute 52-54 and that would be sufficient as an explanation. As he says, many manufacturers do not warrant if you have used a handpump because as Joe says, stuff like “mayonnaise comes out” once you open that cylinder up.



No I don’t have anything against handpumps. I had one for a bit, but thought it was lame to pump and plus the moisture issue. 

 

[Guest]

Also lol it says on the Air Arms link that I posted does say that any Air Arms product used in conjunction with an accessory that is not an Air Arms product, including obviously Chinese pumps and filters, they will not be held “responsible” for any loss in performance. Obviously that is not discussing detonation lol. If you are wanting Air Arms and many other manufacturers to service your rifle, and you are using a hand-pump, they often do not permit the use of a off brand product and to have it maintained under their warranty to the original factory performance.


Okay back to the family, hope that is grey enough for you. If it isn’t, some grey stuff should come out of your cylinders sooner or later.


Do check out that Joe Broncato episode. Most informative.

Regards, Columbo

 

[Yo]

Yo!

 

[Aimright]

I know how you disassemble it, and I have the pump filter and an aftermarket filter that are keeeping the moisture our on the output. The base is just unscrewing from the nut!

Holy heck, sorry that your thread went south Antoni!! I am probably complicit in this since I threw out a question about warranties and it looks like some late night consternation ensued, and as Yo put it "Erased", lol. Anyway you may have figured things out or bought a new pump by now, but I did pull my pump out of the closest and disassembled it a bit to see if I could help you if you still need it. So I assume your problem is the collar I have labled #2 in the first pic and it is spinning in the chrome tube? If so you should just be able to tighten (or loosen) it by putting the spanner on the brass collar at the top of the chrome tube. It has a couple notches and you should have a little multi tool that came with the pump that has the spanner in it. If not, you can just use a plier with some protective rubber etc to protect the brass while tightening.

In my second picture you can see the #2 collar is permanently attached to a smaller tube that is threaded at the top. This assembly fits through the "bigger tube" I have labeled in the pic, and the threaded portion at the top of #2's rod screws into the top collar labeled "in here" on the pic. So when you tighten the top collar it keep the #2 and its small rod tight within the main tube. Hope this is as clear as mud! Let me know if you need some info. 

 

[Antoni]

Oh I would never buy a new pump! This AK-47 would probably run even with the (probably) dirty water it has for ages to come. I just don't want to take the risk 

The problem is that the bigger tube is unscrewing from the #2 nut when I try to unscrew the brass top. Don't have a clue on how to stop it because there is nothing I can see that can hold the tube from spinning when I unscrew the brass head. 

AK

 

[Aimright]

Oh I would never buy a new pump! This AK-47 would probably run even with the (probably) dirty water it has for ages to come. I just don't want to take the risk 

The problem is that the bigger tube is unscrewing from the #2 nut when I try to unscrew the brass top. Don't have a clue on how to stop it because there is nothing I can see that can hold the tube from spinning when I unscrew the brass head. 

AK

So the bigger tube is just basically a spacer and it just fits over #2, it does not thread into #2 nut. So if you put a spanner wrench on the upper collar (labeled "in here") on my pic, and a crescent wrench on # 2 and keep turning they should come apart. You do not need to worry that bigger tube is turning. I took another look at your picture and it looks like you are doing everything correctly , just keep going and don't worry about the tube turning.

 

[Antoni]

Thanks for that info! I was scared that all that water would flow out if that thing screwed off. 

AK

 

[Aimright]

Well there could be water in there I suppose, both the upper and lower collarS are oringed, so don’t fully open it over your living room carpet or you might have some explaining to do lol!