Did you try cocking the action before you pump?

This is from a FAQ on the GTA website -

Q) My 880 won't pump air. What do I do?

A) simplest answer is, the bolt needs to be cycled to pump air. 2nd most common cause is lack of oil or the wrong oil. 30 weight non detergent is all you want to use. Disregard one of the largest air gun blogs claims that pellgun is the same thing. It is not. 30 wt nd is the only oil for an 880. Make sure the foam wiper at the piston is 1) still there and 2) wet with oil. If it is still there and dry, it will take 4 to 6 good drops of oil to wet it enough. This foam wiper is what keeps your oring oiled.

I know next to nothing about the Daisy guns. All my pumpers are Sheridans, Banjamins and Crosmans.

 

Yup

Did you try cocking the action before you pump?

This is from a FAQ on the GTA website -

I know next to nothing about the Daisy guns. All my pumpers are Sheridans, Banjamins and Crosmans.

you have to cock the bolt before pumping, I did the same thing when I got my new one, I was used to a Sheridan blue streak action! good luck.

 

First, let me say I am 74 1/2; been wrenching cars, particularly engines, since I was 12; built my 1st engine from the bottom up when I was 14; have had a LOT of DUH! moments in my life!
The O ring which goes on the foot valve to the air chamber was just a very tiny bit too small in the OD, and apparently wasn't doing its job; replaced it with next size up, and EUREKA!; Houston, we have a launch!
It's things like this that keep me humble.(Somewhat!)
John in Maryland

 

i am 70....................



and I learn something NEW about every day!! my problem now is I have to write it down so I will know it TOMORROW!!