I bought this gun for experimentation with the arrow barrel, and then stored it in the safe for 3 years, and recently decided to sell it. (I needed 10 posts to be able to use the classified, and wrote some things about my 54 year involvement with air guns that is posted in the general discussion, titled "a bit of nostalgia". You may find that interesting.)
Well, after 3 years it still had the 120 bar in the ity bity tank that I had left in it. Absolutely no Leaking!
I pumped it up to 162 bar, the sweet spot, and was getting 900 fps with the JSB 44.6 gr, (80 ft lbs) 10 pumps to get back to 162 bar after each shot. (oh yeah, forgot to mention, this is the .30 cal, which has no regulator, maybe all of the Indy's and Independent's have no regulator no matter what caliber?)
I emptied out all of the air by dry firing after it was down to 40 bar or so. (I am not sure why I was even wanting to get to Zero!) Then, when I tried to pump back up, the pressure stays at Zero. After a bit of research, I found out I had done something very stupid, and as soon as I read that you should never empty out the tank by dry firing, I smacked myself hard, for I USED TO KNOW THAT!
I have done my best searching, but all I could find is the AOA pump rebuild video, and I think I may need to get into the block. I want to fix it of course, but also it will be interesting to see if there is any rust inside. There has always been the concern about moisture from the onboard pump, same as the controversy over using a pump instead of a scuba or SCBA tank fill.
So is there a doctor in the house!
Well, after 3 years it still had the 120 bar in the ity bity tank that I had left in it. Absolutely no Leaking!
I pumped it up to 162 bar, the sweet spot, and was getting 900 fps with the JSB 44.6 gr, (80 ft lbs) 10 pumps to get back to 162 bar after each shot. (oh yeah, forgot to mention, this is the .30 cal, which has no regulator, maybe all of the Indy's and Independent's have no regulator no matter what caliber?)
I emptied out all of the air by dry firing after it was down to 40 bar or so. (I am not sure why I was even wanting to get to Zero!) Then, when I tried to pump back up, the pressure stays at Zero. After a bit of research, I found out I had done something very stupid, and as soon as I read that you should never empty out the tank by dry firing, I smacked myself hard, for I USED TO KNOW THAT!
I have done my best searching, but all I could find is the AOA pump rebuild video, and I think I may need to get into the block. I want to fix it of course, but also it will be interesting to see if there is any rust inside. There has always been the concern about moisture from the onboard pump, same as the controversy over using a pump instead of a scuba or SCBA tank fill.
So is there a doctor in the house!