TM5-4930-235-13&PFigure 2-2. 1. Closed Circuit Refueling (CCR) Nozzle Operation.(Unisex - Model Number 125-0505).2-5. Operation of Nozzle.WARNINGGround clip and ground plug assemblies must be connected before nozzle isattached to aircraft. Failure to comply can result in severe electric shock andinjury or death of personnel.a.Connect ground clip assembly (5) to grounding rod.Change 12-4.1