You now put your cylinder breech jaws down onto a piece of wood and push down onto the sleeve with the socket and extension bar until you see the locking tang on the sleeve move in the recess in the cylinder and then you flick it with a small screwdriver and slowly release pressure. The sleeve,guide and mainspring should all come out. Ease piston out with a screwdriver or rod and inspect the piston washer and whee the cocking arm pushes against. The piston washers are held on either by a screw or a special nut (time for the screwdiver with the gap again) onto thread on the piston. If all looks ok then you have got away with it. If the nut is all bashed,you can try to grip it in vice and unscrew it. Where the cocking arm pushes is often worn as its very thin and may result in the piston not going far enough back to cock the gun (other causes being worn slot on piston rod,worn trigger or small screw being put in cocking arm instead of proper bolt or pin). If its bad then a complete piston and washer set up is about £22 at Nibbs which seems ok compared to £14 for the piston washer set up. If its your only gun it may be worth paying the money for the piece of mind knowing you will not have to do it again. GO TO PART 3