How long can you leave Benjamin air rifle and pistol pumped up?

[His lordship.]

I have a Benjamin 392 rifle and the pistol version of it as well.  I leave them pumped with one pump when not being used, but am wondering how long you can leave them with 4-6 pumps without doing any damage.  I also have a RWS 52 springer rifle and know that I could leave it pumped for a few hours if necessary but usually empty it in a few minutes, the longest I had it under full spring tension was 2 hours.  The multy pumpers are a different animal.
 
Anyone leave a Benjamin/Sheridan pumped up some for a while without problems?  I rarely use the full 8 pumps as you don't gain all that much in velocity over 5-6 pumps, and it is a burden to pump it up that much.  Is  there a difference in leaving air in them (multiple pumps) between a cheap Crosman/Daisy or the more expensive Benjamin?
 
Thanks.

[Graybeard]

I'm not saying it's a good idea but I've left my Sheridan and my Gamo springer both ready to fire for months at a time. If it has had any negative effect  can't tell it. I don't intentionally do that but just forget they are ready some times.

I don't think you are talking about such long periods so I can't imagine how the shorter times you mention would be a problelm.

[smokehouserex]

 
 
  Chris;
 
  If I remember correctly, my instruction booklet suggested leaving 2 pumps in it when not in use. As for leaving it over some period of time ect. maybe a week or more I do not think it would damage it,JMO. I shot thousands of 22 crosman pellets before it started to loosing power. Usually 6 pumps was what I used. BTW. this was in the 1950's lol.
 
  safety first
  HM

[Mckie Hollow]

I have a Benjamin Ben Franklin pistol from about 1975. I didn't know it @ the time, but I had pumped it up too far ( 20 times if I recall, only supposed to pump 12, I think), and the hammer spring was not strong enough to depress the plunger. This was in 1984. I left it in my basement until about 1992 when I decided to take it apart and fix it. I couldn't figure out what part had broke. Put it back together. Still didn't work. About a year later, I took it apart again, figuring that the plunger coming out of this cylinder must be a moving part. Tried to depress it and I couldn't. Tapped it with a hammer, no go. Finally I gave it a couple good whacks and pop it went. The plunger did depress and released the compressed air. The gun works fine today, I just can't pump it more than 13 times. 14 and there is reserved air in the cylinder. So, there you go for an older Benjamin - about 7-8 years.

[White Foxx]

"Gamo springer both ready to fire for months at a time."

Tell me Graybeard, would you leave a really expensive rifle cocked for months at a time?

Just want to know so I never buy anything from you without including the cost of a new spring, be it hammer spring or air rifle piston spring!

White Foxx