Halcyons new Halo (?)

[Rusty Shackleford]

I will do that next week when I can throw up some pics.

But for now, back to the Halcyon stuff.

I assembled my first Halcyon reg set last week and checked the IP. It is 140 at 3000 and 150 at 1000.

Is that acceptable as long as the firsts are tuned to the 150?

Seems a bit high for me and yes, I know this design swings like 20psi from top to bottom.

You can even see the IP in that photo. Also, I changed one thing, I flipped the first and moved the hoses so the bump cap is on top. I realized afterwards this isn't a Piston and I don't have to route thing Monterrey style.

 

[Couv]

Is that acceptable as long as the firsts seconds are tuned to the 150?

If it's acceptable to you yes; however the (SP) specs for the IP to be 130-145 psi. Why not adjust it down into that window? It only takes a turn of the adjustment screw and a bit of purging.

 

[Rusty Shackleford]

If it's acceptable to you yes; however the (SP) specs for the IP to be 130-145 psi. Why not adjust it down into that window? It only takes a turn of the adjustment screw and a bit of purging.

Seconds, duh!

My understanding is it isn't as simple as on my MK-16. I have to open the environmental seal(which the 16 lacks) and I don't have any MK-17 specific tools.

 

[Rusty Shackleford]

Ideally, on a 3500 cylinder, it would sit at 130 and that would keep it under 150 to zero pressure.

 

[Couv]

I don't have any MK-17 specific tools.

The IP on a MK17 is adjusted with an allen wrench.

 

[Rusty Shackleford]

The IP on a MK17 is adjusted with an allen wrench.

To open the environmental chamber. I do know I have to open that to adjust. I don't think I even have an exploded diagram for the thing.

 

[Couv]

I think all you need is a hook spanner (or the SP multi tool) and a big ass Crescent wrench.

 

[Rusty Shackleford]

I found a video online:
Looks easy enough. He adjusts it at the end, My problem is getting the damn cap off without resorting to extreme force. There must be a trick I am missing. The rest I have the spanner and tools to cover.

 

[Rusty Shackleford]

Mission Accomplished.

That video made it a snap.

I set the IP at 3K at 125 and it read 135 at 1k on the other cylinder.

I adjusted the cracking pressure on the 2nds at 135/1K.

That set is assembled. Just waiting for a hose in the second one.

 

[Couv]

My problem is getting the damn cap off without resorting to extreme force.

How did you deal with this ^ issue?