Daystate Red Wolf Fill Question

[ejcrist]

I bought a new Daystate Red Wolf and picked her up yesterday. I'm in the process of getting familiar with it and wanted to top off the air pressure. Currently the LCD says it's at 198 BAR but when I connect the stirrup pump it goes up to 220 in just a few pumps, like maybe 10 or so. I think the pump's safety valve is set to around 225-230 because when I reach 220 and give it another stroke it pushes the needle up slightly, I hear what sounds like a click, and then the needle drops back down to 220. I'm thinking maybe the air's not getting into the on-board bottle or something because (1) when I bleed and disconnect it it still says 198 BAR, and (2) when the pump gauge reads around 200 it should take quite a few more strokes to get to 220. I know the instruction manual says not to fill it till you get the "low pressure" readout on the LCD so is it because it won't accept air until then? What am I missing here? I have an FX Royale 400 that I bought in 2014 and understand how to operate most PCP's but this new computerized stuff takes some getting used to. Anyway, any help would be greatly appreciated. As a side note, I'm using the stirrup pump because my 750 carbon fiber tank is getting hydro tested - I normally don't use the pump. Also one last question - I thought maybe they topped it off at the place I bought it and maybe the LCD reading is off but 22 BAR would be off by quite a bit. Do you think that's possible?



Thanks, Gene

 

[Arzrover]

Sounds like the pump gauge is off. The pressure sensors on all the Red Wolf's I've shot have been exact and that's what I would expect , as well. Gauges are notoriously inaccurate. When filling... whether pumping or from a bottle, the pressure in the hose has to go beyond the current reservoir pressure enough to push the fill valve open before air is allowed into it. That's the click you hear. Each airgun inlet valve may be a little different in HOW MUCH extra pressure will open it. The lcd display or a mechanical gauge are no different in operation, just method of display, so no wizardry to understand. 

My suggestion is to pump till the gauge on the rifle is where you want it.

Bob

 

[ejcrist]

Makes sense. That's what I'll do. I figured the pump gauge wasn't all that precise.

Thanks for the info, Gene

 

[Yo]

Why are you using a hand pump to fill a Redwolf? Do you have added on extra filters? Manual does state hand pump ok but dry clean Air only but that's just me. 

It's like buying a Ferrari and not using recommended premium gas.

 

[ejcrist]

I know and I agree. My tank is at the shop getting the hydro test so that's all I have at the moment. I want to sight her in tomorrow for a Field Target match Tuesday so it's either the hand pump or wait till next month.

 

[ChrisUSA]

I have the .25 Red Wolf HP and the sticker says 250 SWP. I fill from a small CF tank fed via Shoebox. Very slowly filled, I will fill to 260 and it will settle back to 250 +/- bar. Mine will accept air at any level and I have only hit the low pressure notice once. I can not speak to hand pumps as I have never had one.

 

[Springrrrr]

 

The 177 Red Wolf has a stamped Safe Working Pressure of 230 bar. I wonder if there really is a difference in the tanks they use. A call to AOA told me they fill them to 250 bar. I have been filling to 250 ever since I got the Wolverine R and the Red Wolf. Up to now, nothing blew up.

 

[Arzrover]

Springrrrr... the tanks are safe, it's the gen 1 board that really doesn't have enough juice to properly open the exhaust valve at higher pressure. Then gen 2 boards use 250 bar. 7.4 v battery - gen 1, 11.1v battery - gen 2. I don't think they had envisioned where it could go when they finished the first gen design.

Bob