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air gun problem

Posted: Mon Sep 19, 2011 9:17 am
by andy_65_in
1.Hi folks yesterday while plinking i started to refill my daystate classic with my fx 4 stg pump from 200 bars onwards.after abt 5 pumps there was a mighty bang and the connection broke apart/came off.i tried again but the pump is dead in the sense there is no air filling in the rifle,the manometer is stuck at zero and i can hear air leaking.the airrifle is holding pressure as was earlier and also firing correctly ,similarily the pump is also drawing and expelling air when checked unconnected but i cant refill the airrifle.is it that the female coupling has become useless resulting in air leakage and non filling of air.please advice.

2. i am based at roorkee can i have contact address/tele of any member who owns a pcp and a pump based at roorkee,haridwar or dehradun so that i can check my airrifle which i shouldnt think is faulty by filling it up. i can then get another coupling/washers imported.thanks

Re: air gun problem

Posted: Mon Sep 19, 2011 12:07 pm
by dr.jayakumar
dear andy,
your adaptor must be leaking or your distant valve isn;t working.
change your adaptor maybe.
regards

Re: air gun problem

Posted: Mon Sep 19, 2011 12:12 pm
by ssc
Check the fill probe opaque O ring, generally if dry will get damaged & will blow up while insertion.

Re: air gun problem

Posted: Mon Sep 19, 2011 12:27 pm
by andy_65_in
dear ssc what shud i do-remove the o ring and then apply some oil and if so what type-is it silicone oil

-- Mon Sep 19, 2011 13:19 --

Image hi folks this is the daystate female foster i am using

Re: air gun problem

Posted: Mon Sep 19, 2011 5:53 pm
by andy_65_in
thanks but where is the o ring located inside.is it a washer which i have on the male thread on the rear of the female foster or is it inside the brass foster

Re: air gun problem

Posted: Mon Sep 19, 2011 8:57 pm
by ssc
andy_65_in wrote:thanks but where is the o ring located inside.is it a washer which i have on the male thread on the rear of the female foster or is it inside the brass foster
I have same kind of fitting( 1/2 inch quick connect parker fitting) which are rated & tested for high pressures. you will find nipples which can be pressed on both male & female, the O rings lie beneath them unless ur fitting is different from inside. use silicon grease if possible. it would be nice if you could take pics of the insides of both male
& female fitting that will be be great help to solve ur problem.

Re: air gun problem

Posted: Tue Sep 20, 2011 12:00 am
by Happy
Thats a QC02 from Bestfittings UK... 1/8" fitting.... compatible with Benjamin Marauder and Disco too...
regards
Happy

Re: air gun problem

Posted: Tue Sep 20, 2011 8:36 am
by andy_65_in
ya thats the QCO2-ill send pictures

-- Tue Sep 20, 2011 9:14 --

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photos show the QCO2 adaptor with bonded seal washer in the rear male screw head-where is the o ring :D --its getting more and more complicate like the Gspot :D

Re: air gun problem

Posted: Tue Sep 20, 2011 9:59 am
by ssc
Gr8 Pics buddy, now in the 2nd last pic u can see the nipple & underneath the nipple should be the O ring. u need to open from the other end, the small fitting will come out with a spring ( which operates the nipple), u will see the damaged O ring & replace. Generally if the O ring explodes it remains in place & only a small part will go to the compartment where the male fitting sits. By the way the FX pump is rated for 250bar, I generally pump my Gladiator to 200bar only.please note too much grease or oil is also not recommended as the O ring will slip out of the grove & get stuck.

Re: air gun problem

Posted: Tue Sep 20, 2011 11:25 am
by andy_65_in
ssc please pm me ur tele so that i can take direct advice on how to go abt it

Re: air gun problem

Posted: Mon Oct 03, 2011 8:38 am
by andy_65_in
emailed bestfittings uk abt my problem-really grateful of them they sent me a new qco2 female foster free-the airrifle is filling again-also had a chance to se the missing o ring :D

Re: air gun problem

Posted: Mon Nov 21, 2011 10:10 am
by andy_65_in
hi folks-my fx pump has just styooped filling air with the new female foster i got from uk-whats the problem and the solution-am really frustatrated-the pump is dead with no pressure whatsoever :(

Re: air gun problem

Posted: Mon Nov 21, 2011 10:38 am
by dr.jayakumar
andy,
did you check whether the piston has good sucktion,if not check the piston seal.
i think this is the only area you have missed out .
regards

Re: air gun problem

Posted: Tue Nov 22, 2011 11:49 am
by andy_65_in
thanks dr jay for the advice. can anyone provide me a link for exploded view of this pump-i remember downloading it once but cant trace it now

Re: air gun problem

Posted: Tue Nov 22, 2011 12:54 pm
by andy_65_in
any member who is based in dheradun/roorkee/haridwar who can hhelp me restore the pressure in my pcp to safe storage levels as i have lost the use of my fx pump which i am getting repaired etc soon.this is only a one time help.thanks