Fill adaptorApril 15 2013 at 9:13 AM
|Pierre (Login pmlapl)|
Response to Disco fill issue
It does seem like the check valve in the fill adaptor is stuck or full of debris. You can check this by removing it from the gun. Make sure you vent the air first and then use a wrench to unscrew it. There is a filter on the bottom side that may be plugged. You should be able to remove it buy using a small rod that fits inside the nipple and gently tapping on it until it pops out for cleaning or replacing. Check out the parts diagram on the Crosman site for the Disco and you'll see what I mean. Hope that helps.