rigger high risk worker crane operator wearing fall protection safety helmet

background block boom building cable cargo chain climbing clipping closeup construction conveyance cord crane drum drums electric emergency equipment fabric factory firefighter fireman hand handle hands hanging heavy helmet holding hook horizontal industrial industry isolated job lifting lines load loader machine male manufacture manufacturing metal nobody nylon occupation operation park pattern person protection protective reel rigger rope safety sewing site sky sling slings soft stacked street tag tie tool trucks warehouse webbing white wire work worker