Is it me? Or does it not work?

[JohnWicck]

Just got this Vevor pump.
shot the pistol into the yellow zone to test the pump.
After 100 pumps nothing changes on the gun or pump gauge.
Pump looks to be undamaged and In perfect condition.
Am I missing something?

 

[humbled.ag]

?

 

[Heavyopp]

Yes, it is.

 

[jarmstrong]

No,,, the gun is not cocked, Weihrauch HW44 cock on closing
the question is? what?

 

[MikeVV]

JW -

Are you talking about the pressure difference between the pump and the gun ?

Yes, they can...be correct as shown !
1 - If you just plugged in the pump, without doing any pumping.
2 - If you pumped a little pressure and released the pressure in the pump.

Air is NOT supposed to escape the guns air cylinder to equalize the two gauges...unless you are "currently" pumping pressure...right ?

Mike

 

[JohnWicck]

Sorry for initial post. It posted prematurely

 

[jarmstrong]

the pump has a leak,, check/tighten all the threaded connections, don't forget the bleed valve, it needs to be tight where it threads into the pump and closed snuggly

 

[WorriedMan]

Many Chinese hand pumps come with a dead head test plug, if yours did, give it a try. WM

 

[rsfrid]

I might add that it will help to lightly grease the o-rings on the probe with silicone grease. That immediately helped with my HW44 fill. Apparently there was air leaking out at the probe area.

 

[JohnWicck]

Many Chinese hand pumps come with a dead head test plug, if yours did, give it a try. WMView attachment 514529

What do you mean “Probe?”

 

[Motorhead]

First thought a loose or weeping bleeder valve.

YES, attach a Dead head on hose and see if pump makes pressure

 

[WorriedMan]

What do you mean “Probe?”

No, test plug, as pictured. Check in spare parts box that came with pump, hopefully you got one. If so, plug female end of fill whip and pressurize pump. If all works well, problem is in connection or airgun. WM

 

[JohnWicck]

UPDATE!
I see 3 connections.
The gauge
Ths hose
The pump connection to the base
I put Teflon tape on all.
The gauge on the pump now moves while pumping but slowly drifts to zero when I stop pumping.
The gauge on the gun actually DID show a little pressure increase however. Shouldn't the pump gauge remain steady until pressure is released?
The 3 connections can’t be any tighter.
Thanks

 

[Gerry52]

I believe the "probe" mentioned meant the fill probe that "plugs" into your gun to fill it. Usually have 2 o-rings that might need grease (silicone). Seems like you still have a leak somewhere. Have you leak checked it?

 

[JohnWicck]

No, test plug, as pictured. Check in spare parts box that came with pump, hopefully you got one. If so, plug female end of fill whip and pressurize pump. If all works well, problem is in connection or airgun. WM

BINGO!!
YES? found the test plug in the box of parts.
Pressure held which (like you said) pointed away from the pump.
Turn out I needed Teflon on the quick connect/probe fitting.
Thank You

 

[JohnWicck]

Thank you all
As always you guys pulled through

 

[WorriedMan]

BINGO!!
YES? found the test plug in the box of parts.
Pressure held which (like you said) pointed away from the pump.
Turn out I needed Teflon on the quick connect/probe fitting.
Thank You

Been there, done that! Glad it worked out, I'm sure thread will help others, as well. WM