In this video, we fix a Porter Cable DA250B Type 1 finish nailer that a neighbor tried to fix.

Collar/seal: https://amzn.to/3Uxrzkv
Bumper/seal: https://amzn.to/3O1JXPK
Trigger assembly: https://amzn.to/3EuohZG
Overhaul kit: https://amzn.to/3GcUuWs