Fix a PCP Hand Pump! -Step by Step
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- Опубліковано 30 бер 2019
- Finally an English FULL version (sorry it's long) of the complete disassembly and re-assembly of a High Pressure 3-stage Water Cooled Pre-Charged Pneumatic (PCP) Hand pump. Full pump tear-down and rebuild.
Props to the camera kid, man!
Yeah he did a great job
How much
helo from Poland
my pump was completely empty, there was no coolant at all, it's good that I came across your video because the pump certainly wouldn't last long, thanks brother from across the water
Your boy did a very, very good job, you should be proud of him. Thank you for the video as I'm about ready to fix my pump tomorrow ;- )
wll
Best video ever for fixing this problem! Thank you both so much! (i only cleaned it , and it worked again.)
Nate and Chris I am Very Appreciative of your collective efforts to generate this VIDEO! You've provided me with a fantastic foundation to work from, to understand my own, newly acquired hand pump for my air rifle! That is exactly what I needed!
The annoyin farther and the good son that puts up with it..... Lol but good vid..
Thank for the video. I purchased an Umarex PCP with a hand pump. The pump had the exact same problem right out of the box. The owner's manual pump troubleshooting section stated: "if the pump is difficult to pull up and springs back down, It needs servicing". For this repair, the manual shows photos repairing the exact parts you did. Since the pump was brand new, I sent it to Umarex USA in AK and they sent me a new pump. What a huge difference. Now it pumps up to 3,000 psi without much effort.
Umarex just re-sells the same exact pump everyone else is using. So they also don't bother putting a lot of effort into how to fix the pump. It's really a lot cheaper for them to quickly test a different pump, then ship it off to you & hope there's not too many more service calls on these pumps!
Great, informative video. The camera man was filming intuitively where our eyes needed to be. Here in the UK a complete seal kit only costs around $8. It is well worth taking an hour a year to get hassle free use of the pump.
Great Job! Been trying to figure out my pump. saved me a whole lot of headaches!!!
Nice video. My pump was slightly different but helped me get mine apart and back together again. Nice that you didn’t cut out the mistakes. Kept me from making them. Again good job!
Hey guys.
Honestly can't thank you enough. Going for a shoot tomorrow and my trusty pump packed up on me (same problem you mentioned) . Found your video at 1 am with the pump completely in pieces and darn it if it weren't for you pointing out that tiny plastic thing I would never have noticed.
Thanks again
You're welcome!
Very very much appreciated. Great combination of father and son! Your son’s video was better then most other videos where they are moving all over the place and not on the subject. Well done Nate great camera work.
And to Dad.... thank you so much you are very resilient and patient to bring us viewers this information. Very much appreciated. Merry Christmas and a happy new year (2022) from “Down Under “ Australia 🇦🇺 😉👍👍👍👍
My Benjamin hand pump is having the same issue after 3 solid years of everyday use, guess that's their lifespan. I also watched the 5 min Chinese instructional vid on disassemble before clicking on yours. Very pleased and confident I'll fix my pump. Thank you for taking the time to show how it gos. Oreilly's is my store. They got the parts while others don't 100% of the time.-951-
2 thumbs up for the kid! Great video thanks.
Learning by doing... The scene with the fluid on the floor was exactly what happened to me the first time I disassembled my pump.... And now I found your video.... It's probably the best vid you can find about these pumps... Greatings from Germany.. 🇩🇪😜😂😂💪
Thanks for taking the time to show us how to take apart the pcp air pump. Mine pumps but no longer fills more than half.
Thanks, your video helped me to fix my pump. It had been sent out without any cooling fluid! It was an extremely useful video on how to dissemble it as well. Your son did a great job filming it!
Mine came without any coolant too. Topped right up with antifreeze. I think it caused my barrel to gunk up after a few refill.
I bought a cheap PCP pump for $46.00 from amazon in 2017 .it still works just as good as new 'i haven't had to do anything to it so far
I think I have the same pump. Took it apart today... wish I had viewed your video first! I'm still troubleshooting but sure I'll get it. Thank you.
Great video! I have the same malfunctioning pump. I Really Appreciate the effort put in to this by the both of you! You may have not covered all of the steps, but at least you gave it an Honest effort. You could NOT have caused anyone to destroy / ruin their pump by following your video. THANK YOU! A+++
A piece of mine broke inside so i ended up ordering another from Amazon. Just got it and tore down and added coolant today, and working good, just need to make sure i go slow and don't do too many pumps at once to keep it cool as possible. thanks!
The wrench has two tabs because it is designed to engage the brass fitting from the top where the three seals are. It’s a tight fit but a much more positive engagement with no chance of marring or denting a tube.
Thanks for the video!!!
I have the same problem with mine and I already opened but not where the liquid coolant is , so I will do the same and see if works , great video guys!!!!
Thank you. Had an issue fixing a popped seal on mine. Vid helped me out greatly.
That was brilliantly informative video. Thanks and keep coming with more...
thank you. i think your son did a great job well done! my son is the same, he loves me to the ends of the world.. you take good care of him. be safe :-)
Great video. Have same issue. IVE taken mine apart twice without seeing anything wrong except at first take apart there was no fluid just remnant of it being there. I love learning how to take things apart and back but going to have to trash mine and buy a 4 stage and hope for better luck.
Appreciate this video Guys. Hopefully this will save me some trouble even though the pump design has changed a bit from when this video was made.
Good job guys. Thanks for making and sharing the video.
Dear Sirs! - the Father and the Son, thank you so much for doing the job that GREAT!
Kudos!!
What a great time, you and your son.
You should add a bit of silicone oil to all moving parts, mainly the o rings.
Thanks for the help.
The cameraman!!! He is on point... now i can repair my pump... tnks!!!
Thank you for sharing and your kid did a grate job! I have seen way worse from much older and more experienced UA-camrs...
🥃cheers🍻
Played with my Vevor today. Discovered a gap under the nipple to the hose from the pump. Just threw an additional O-ring (keeping the one already in there/ so doubled up) that came with it and fit snuggly into the hole and fixed right up.
Great team! Great job! Great video!
Thank you for the video I have the same problem like yours but my pump only use for couple times. It is going unpump I think I will try it out by myself. Thanks again
Beware, there's a small rubber ball in the top check valve in that brass cylinder with the handle. Sometimes it can fall off and then you are screwed...
Thank you for your time and a great video.
GREAT TEAM!!!
I just received my pump and noticed some machining chips in the top screw holes,???
SOOO, I decided to follow your Vid and tear down the pump, the top of the second cylinder was so Tight that I had to use your vise method and the spanner cut my palm due to how TIGHT this section was screwed down. When I Finally got the brass to unscrew and looked down the tube the Oring was in pieces. NO Way was this going to pump HPA.
And No Coolant in outside tube. Thank U both for your Well Done Vid.
Purple Ice and a through cleaning and oring replacement is in progress, THANK U !!!
Nice Job Guys!
Congratulations on your victory!😊
Well done all the problems you get when you diy. Good interaction with your son nice vid.
This video was very educational. I just recently bought a hand pump that talked about its liquid cooling feature and after about a months worth of use the pump failed, Ive torn it apart and it appears I have a failure of the third stage piston seal. I also now realize that they never filled that cavity on my pump with antifreeze. No wonder the piston seal failed so quickly. That third stage cylinder, without the benefit of water cooling, probably cooked the piston seal in short order. There are posters here arguing that the fluid is condensation, If you understand how the pump actually functions, that is obviously not where condensation would collect. However, if you wanted water cooled jacket capability for the third stage piston cylinder, this is exactly where the cooling medium would go.
Christopher, I have not yet completed this task myself, but I think I do recall you said the outside of the old filter was a little hard. Try this first when replacing the filter in the end of the hose. Get your heat shrink tool, ie gun or lighter, and heat the outside of the new filter just a little, it should tighten up a bit and shrink up just enough to slide in just like the old one. Also I don't think you need to lube the outside of the filter, as it may cause a little trouble down the line.
Thanks for the Video.👆
Great video, thank you! I have had the exact same problem. There were no problems with disassembly, but watching your video I found that there is no faulty seal on the end where you had yours, but the complete piston end broke off. :( It was also a cheap pcp pump, but after one month and about 5-6 uses I didn't expect this. Also, mine never had any coolant in it, perhaps it helped it wore out. Or maybe a manufacturing issue.
Pinch the filter and roll between your finger and thumb to compress slightly, sil lube and twist in, it will decompress to fill the shell/tube just fine.
Great guide btw marra 👍
Thanks man ur a lifesaver on this one for real! Great video very useful
Glad to hear it!
Awesome job cameraman!!!!🍻
Thanks for your pain and suffering too make our lives a bit easier. I don't do tedious well, But I am good at replacing windows, hopefully this video will keep my pump from becoming yard art!!!
Thanks so much my pump is doing the same thing ,so I will give it a shot and try to fix it , thanks again and God bless
Really good job done 👍👍👍
Highly appreciated
Well explained video. And kudos to your kid. He quite knows a lot for a 12-year old
Thanks for the video... im ready to tear down mine as well. it has the same problem as yours and hopefully i can make it work.
Good luck Arnold, it's not hard once you get it apart at a few of the challenging spots.
Awesome video!
Was a good watch even though took some time. A very well done video imo. Good camera work too.
Just ordered a couple of days ago an "inexpensive" (😁) hand pump. Seems like one alike this one - and the one as in the Topa (pt.1 and pt.2) videos.
Probably gonna just test it with some empty strokes - and then just take it apart straight away. To see if the coolant really is in there - and then if it is in there, just switch it out straight away. Some good hints and info already gotten - even though the pump has not even yet arrived..😁
Thanks for the way good video! Very informative.
Thanks for your help guys, just fixed my pump.
thanks so much for your time, really appreciate your instructions, tomorrow i will fix mine
Glad it helped
@@HarmonyTurbines a lot! my problem was exactly yours and i got solve it
Go easy on the boy mate. shoot a couple of more videos with him and it will be fine. thanks for the video
Well done you guys very informative great video and always make sure to clean the shaft .
didn't you hear the kid? this is supposed to be family friendly
Great camera work
I believe the fluid inside is created over time from use. The high pressure and friction causes condensation.
Very nice video, worth to watch nearly one hour. Btw, congratulations for have a son with same hobby.
Thank you very much!
Mess around and fill the resovoire with gas instead of coolant.🔥
The skinny rod end with two different o-rings is also a one-way valve. That hole lets the 2nd stage air enter the 3rd and last. The pump handle can't raise because the 3 stage is over pressure.
Dave George can you tell which part exactly do you mean ? In which minute in the movie ??? Thanks
You mean the 2nd stage piston valve isn't opening, to let the 1st stage air flow, so the 1st stage section is remaining pressurized. There's also a 2nd stage outlet valve. That would be the one that is at the very bottom of the pump tubes and was shown over-tightened in this video. The outlet valve has a piston with a green o-ring, which needs to slide open to let air flow past. When this o-ring fails, the pump will push itself back upwards after every full downstroke. When the 2nd stage piston inlet valve o-ring fails, the pump will just simply not reach much past 800psi. These '3-stage' pumps are actually just 2 stage. The chinese translators get confused with all the tubes used, what they mean to say is that there are three sections inside the pump, but there are only two pressure stages
I think the liquid is a moisture deposit like the air compressor just like at the shop I work and we used to drain it every morning.
nah these pumps are advertised as water cooled. I'd assume they put the water there to get the heat from the inner chamber out faster, to protect the o rings.
The water jacket is in an area that is sealed off from the pressurized air passages. There are o-rings keeping the air & coolant separated
thanks from Chile (South América)
Hopefully you are well 👌
I just wanted to add that I mount my pump on a solid wooden base that allows me to stand with my feet further apart, about my shoulders width. This allows me to use the pump in a more natural stance , not having to keep feet on the stirrups. As the pressure rises above 2,500psi, I was having difficulty gettin the last bottom 2 inches of pump to bottom out. Just sharing what worked for me Oh by the way I'm 61 yrs old and 233 lbs.
Nice presentation
Very helpful and very informative 👌👍👏
Thanks 🙏
What a great father and son video . That kid is so smart for his age . I’m having problems with my pump had it all in bits still won’t work . One thing to mention there wasent any liquid in mine no idea why ?
Thank you for this!
White substance more than likely white Taladrine. It's for keeping metal cool on lathe and mill for cutting.
You are a savior !
Great video 1 of the best in you tube. Tank you.
Your son did a great job with the camera!
You arse not ass. You must have spent some time this side of the pond in the UK. And a clean shaft certainly is essential. 😁An informative and humorous video. Thanks to you and junior.
thanks,i used your video to fix my hand pump.
Nice job. Thanks for your video.
Wonderful moment at last 👍
I don't know how to thank you and your son for the best complete disassembly and assembly and in actions and words the average person could work with. I've watched alot of videos and yours by far is one of the best absolutely the best on these inexpensive pumps. The kind of hand pump the average person is going to purchase and use and you saved some choice words for some people that's for sure and you helped me so very much. Oh yeah did you get oil in your pump gauge or did you have to add it later and if so what kind of oil. Thanks again for your advice and time tips you have taught me some useful lessons
Oil-filled gauges are not needed for hand pumps. The chinese only do that because that's the type of gauge they have already in the right pressure range. The oil is only there to damp out any oscillations in the needle, if the gauge is attached to a very turbulent pumping system. But, if you sell pumps with & without the oil inside the gauge, you will find that the ones with oil sell faster
Great video helped me fix mine
Excelent job
Very helpful, thanks a lot
Great video.
Thx man the video was really helpful
I wonder how Chinese O rings stand up to O rings made in the west. I noticed Chinese rubber doesn't stand up well in other products. The white liquid reminds me of gun cleaning oil or machine oil which you mix with water which not only acts as a cleaning fluid for cleaning salts from cartridges from military rifles like Youngs 303 cleaning oil but would cool and stop corrosion in the pump. Not sure i like the idea of antifreeze. Have you tried rolling the filters in your hand to reduce the filter diameter.
Thank you so very much Sir, for presenting this "Tutorial" It was very informative and helpful. I'm so happy that someone took the time to teach us how to rebuild this air pump. Some of these Chinese manufactured "Hand Pumps" are of low quality and lack performance. My $200.00 Air Venturi G6 is no exception, it to was made in China, and to me was over priced. It takes me forever to fill my Hatsan AT-44 cylinder. I just stopped counting the strokes. It takes me (3) three 15 minute sessions to fill my tank from 150 bar to 200. A Friend of mine just bought a (Made in Japan) "Yosoo" Hand Pump from Amazon. He'll be at 100 bar, (in theYellow) and be at 200 bar in 38 to 45 strokes. Now that's an Air Pump, and for the reasonable price of $47.00 you can't beat that.👍
Yeah the knock off products are becoming a true problem for all kinds of products that are designed AWESOME originally but copied horribly. It sucks that we have to wade through the junk and the crap of that type of society.
@@HarmonyTurbines it should not take you 45 minutes to fill from 150 to 200 bar. something is not connected properly if that is the case. have him try his pump on your gun and see if it's the same issue.
it's a small thank but 0-3.3k psi was well under 15 min on a benjamin/whoever pump I gotn used for sixty bucks
@@mackhomie6 What part of the video are you referring to where I said 45 min? It was a long time ago when I made this and I don't feel like re-watching an hour to answer this question. :) No offense!
@@HarmonyTurbines sorry. I meant to reply to joe de jesus, the original commenter with the hand pump troubles.
The check valve in the very bottom of the brass plug that goes into the base should not be tightened more than flush, and don't loose the check ball at the top when you take out the pump rod retainer
@Mark Cross Thank you I will make that adjustment in my son's pump
Also you are definitely missing a little rubber ball that goes into the top brass part that's attached to the handle the center pump rod holds it in and that small pin holds the pump rod loosely against the check ball, the bottom check valve with the spring should only be tightened to flush with the housing, the filter in the blue casing on the hose should be dry and hard similar to a cigarette filter to catch oil and moisture from going into rifle
Definitely, keep that check ball clean with maybe a little bit of think silicone oil. Also, I drilled the handle plate that connects to that brass fitting aka air inlet, and basically turned the handle into a filtered intake, and used an oring on the collared side of the two screws and one that fit inside of the the intake hole are to seal it off
@@HarmonyTurbines Yeah, 2nd that! The 2nd stage outlet valve needs to slide open in order to flow air. But if it's a tiny bit loose, it can be forced to flow, but will make pumping harder
@@TheManic.5-OH Excellant! I did that same mod on my second pump. It had a recess for the o-ring, but the handle didn't have a hole. You can also fill the inside of the handle with a filtering media and put holes in the grips to let air flow in. If you want to be weird, you could even attach a hose to one end of the pump handle, and only use dry air from the outlet of a large dehumidifier
If you could not pull the handle up, the problem is the air in check valve is not opening. In a nutshell it was a vacuum you were fighting. Also, remember the filters are intended to filter the air as well as absorb moisture and any oil that gets to that point. Saturating it with oil will be very counter productive in allowing it to perform its purpose.
Hmm, that sounds like the problem I have at the moment, 4-5 pump strokes and the handle is nearly impossible to lift, also, I can't hear the pump taking in air, the funny part is that this only happened after I realized my bleed valve wasn't closed all the way, and probably never was, despite the pump has worked properly in the past... So, do you have a suggestion as to how I fix the air intake valve?
Craig, I have a similar 'vacuum' situation where it becomes harder and harder to push the handle down and it rebounds back up on its own. no air is actually passing through anything. it's a brand new pump, never used. any ideas?
@@mackhomie6 same issue here
I had the same problem, valve at the bottom was sticking causing not to open and created vacuum. Needed cleaning. The valve in mine was different from the video where he dropped the cover screw.
I had the same problem with the filter I cut mine down to half and got it in.
Thank you
This was SUPER HELPFUL - thank you!
Has anyone found a list of the O-Rings in these pumps?
受益匪淺，非常感謝👍！
👌✊
When you put air under high pressure the moisture is forced out of it. He solved the mystery in the first five minutes
If you're implying that the liquid is from condensation ...it's not. The liquid is held in a sealed area between the 2 outer cylinders. The only cylinder which takes the air in and compresses is, is the tiny center cylinder. The middle where the coolant is held has no exposure to outside air and therefore would never have a fresh air supply to condense liquid out of. The liquid in there is put there on purpose ...it's an antifreeze coolant in the unit that we bought. Condensation is created in the central compression cylinder and there are cloth filter traps to keep that from getting into your air rifle cylinder.
@@HarmonyTurbines you should have looked up 3stage pumps and learned how they work.
@@24packman74 Where would you look, exactly? I've been looking
u are a hero !
I have broken the top off on the end of the rod on 2 pumps I just ordered a 3rd one.
Awesome video. Props to little man there and very helpful my pump was doing the same thing
He he, at 31:00 I was like: No! No! No!... like I was watching some thriller, and sure enough it happened. The black ring you replaced looked like melted or burned to me. Thx for the video.
The boy did a good job. As for Dad!!!
My pump is doing the same thing and I suspect it is something to do with a check valve. I haven’t opened it yet so it’s a total guess.
I have replaced my pump but I’m hoping to repair the other one in the meantime
"O" rings don't just go bad by being torn, after prolonged use they get rubbed away, or become hardened, something you really can't see with the naked eye
This is old but that needs to be just past flush. Also that small tube was the problem, it's the intake. Nowhere near snug, more like 1 full turn past flush. I'm 12 so..... No I'm a machinist with 30 years experience. The tighter you "snug" that part the harder it is to pump.