Just bought a new RT from Airgun - problems already

[John Dresser]

I just picked up a new RT Pro. It shot fine for about 50 to 100 shots at the field but it was dropping off noticeably. My tank puts out close to 900 psi so I am more than a little surprised. Any ideas how to fix that?

[maniacmechanic]

check your chrono first

[Spider-TW]

Got Oil?

Got Air? If you are trying to shoot around 10bps or better, the mag will challenge the bottle reg at around 1000 psi. A good reg will keep up down to 600 or 700, but your rate will be dropping down to around 1 shot a second at some point between there and 500 psi. Those are just guidelines, but you'll feel that curve somewhere on your bottle.

Some oils have done that (300 rounds and fail) to me. Extreme rage was too clean and would shoot off after a few hundred rounds, leaving the level 10 orings squeaky clean.

[John Dresser]

Chrono was 270's. I would have thought they'd oil it there, but I just re-oiled it.

Well, more problems already.

I just aired it up again and now the trigger doesn't even actuate. The trigger pin comes forward and pushes the trigger itself forward, but when I pull the trigger nothing happens.

[secretweaponevan]

Sounds like your velocity screw backed out.

Is your tank screwed in all the way?

[michbich]

If the velocity was set. Your take is too low.

The way i see it: You have enough pressure to push the on-off pin, but the spring strenght is too strong compared to the air pushing on the bolt.

If you remove the valve, try sliding the bolt. Does it have resistance while moving it? If you have to apply force to make it move, the carrier is too small and should be changed.

[Spider-TW]

If you ran it dry, you will need to put a drop of oil on the stem of the bolt, a drop on the on/off and a couple drops in the asa.

They don't come with much oil on them, at least not enough to break them in.

[John Dresser]

There's no way the velocity screw on the back of the reg backed out in just 100 shots. Yes, the tank is screwed in all the way.

The tank is 900 psi and has a 3k+ fill. I don't think anything is low. What pressure do these typically run at?

The bolt definitely has more resistance sliding up and down the power tube than the old school foamie bolts I am used to. I can feel it catch in two different spots. Are you suggesting going to a larger carrier? This is what I was hoping AGD wold do for me when they "tuned" it.

[MANN]

sometimes an asa will not fully open the tank valve. You might want to try to put a pressure guage in line with your valve or try another asa/tank.

[John Dresser]

I currently have a gauge inline. Remember, this same tank worked earlier today. Now it does nothing.

BTW - I also picked up a level 10 bolt for my old RT. How many carriers should have come with it? The directions say to try the double groove one first but I didn't get that one.

[MANN]

how many carriers did you get.

[MANN]

I currently have a gauge inline. Remember, this same tank worked earlier today. Now it does nothing.

Then it is something that has changed. check:
1 tank screwd in all the way/ double check pressure
2 turn up velocity
3 re chrono and report back

[BigEvil]

I currently have a gauge inline. Remember, this same tank worked earlier today. Now it does nothing.

BTW - I also picked up a level 10 bolt for my old RT. How many carriers should have come with it? The directions say to try the double groove one first but I didn't get that one.

Those are old directions. They used to include a bunch of oversized carries that no one ever used. So they arent included anymore.

Start off with the smallest carrier (no slash, no dot - 'blank'). If it sticks go up to the one-dot.

If by 'old' RT you mean the classic RT with the banjo bolt, be prepared to replace the reg piston. Many times when you upgrade to the lvl 10 on them the pistons vent out of the back due to the additional pressure.

[John Dresser]

No luck with turning the reg up on the RT Pro. Still nothing is happening. I tried the tank on my old RT and it cycles just fine.

What happens when it "sticks?" Is that the problem I am describing?

Any such things as current directions? I got 4 carriers.

Yeah, it's the first RT ever made so it is classic as it gets. Serial # 0001.

[MANN]

Yeah, it's the first RT ever made so it is classic as it gets. Serial # 0001.

WOW. if you ever want to get rid of that I would love to take it off your hands.

The stick you are refering to is bolt stick. Usually caused by your detents. Try unscrewing them to check for rubbing/wear.