[maxearing]

when i air up my sft the bolt goes back but when i fire a puf of air comes out of the manifold area

[romeyrome31]

either your manafold/noid aren't adjusted right or your dwell is set too low... try upping your dwell and make sure your noid/manafold have a tight seal/fit..

[Uziel Gal]

I would also suggest cleaning and regreasing the bolt sail o-ring, or replacing it altogether.

I would also look at the trouble shooting section on www.zdspb.com, paying particular attention to the part about 'pneumatic lockout': -

http://www.zdspb.com/tech/mguide/sho...neumatics.html

[fishballer06]

Before trying that, this is also a common problem of a dead battery. A good lubing of everything may help as you may have some severe bolt stick.

[tzzler44]

zdspb.com/tech