Clean the threads on the end of the rod so that the knob screws into the rod freely. Then screw the knob onto the rod, slide the bumper onto the rod, and insert the rod into the gun. Thread the rod into the hammer, and then pull back on the cocking block until it makes contact with the bumper. Look down the feed tube to see if the bolt clears the hole. Allow at least 30 minutes for the Loctite to dry.
Adjustment is now complete.
Slide the brass clamp and spring away from the end of the hose. Remove the hose from the fitting. Cutting is usually required. Remove any pieces of hose left behind on the fitting. Cut the new hose to length with a razor blade of wire cutters.