Follow all health, safely, and environmental requirements ; Perform cleanup duties ; Perform material handling and storage duties ; Identify, use, and care of common hand and power tools ; Use and care of craft specific tools and equipment ; Knowledge and application of craft related mathematics ; Knowledge and use of safety standards and best safety practices relevant to rigging, Inspection of rigging equipment and hardware ; Knowledge and application of common hitches, Emergency stop signal, Basic crane hand signals, Knot tying (bowline & clove hitch), and use of rigging equipment relevant to craft specific tasks ; Ensure all certification and training is in accordance with the requirements ; Assists in repairs and maintenance, in accordance with diagrams, sketches, operation manuals, and manufacturer’s specifications, machinery and mechanical equipment, such as engines, motors, pneumatic tools, conveyor systems, and production machines and equipment using hand tools, power tools, and precision‑measuring and testing instruments ; Observes mechanical devices in operation and listens to their sounds to locate causes of trouble ; Dismantles devices to gain access to and remove defective parts, using hoists, cranes, hand tools, and power tools ; Examines form and texture of parts to detect imperfections ; Inspects used parts to determine changes in dimensional requirements, using rules, calipers, micrometers, and other measuring instruments ; Adjusts functional parts of devices and control instruments, using hand tools, levels, plumb bobs, and straight edges ; May assist with set up and operation of lathe, drill press, grinder, and other metalworking tools to make and repair parts ; Repairs or replaces defective parts, using hand tools, and power tools ; Installs special functional and structural parts in devices using hand tools ; Starts devices to test their performance ; Lubricates and cleans parts ; Repairs and maintains, in accordance with diagrams, sketches, operation manuals, and manufacturer's specifications, machinery and mechanical equipment. ; Observes mechanical devices in operation and listens to their sounds to locate causes of trouble. ; Dismantles devices to gain access to and remove defective parts, using hoists, cranes, hand tools, and power tools. ; Examines form and texture of parts to detect imperfections. ; Inspects used parts to determine changes in dimensional requirements, using rules, callipers, micrometers, and other measuring instruments. ; Adjusts functional parts of devices and control instruments, using hand tools, levels, plumb bobs, and straightedges. ; Repairs or replaces defective parts, using hand tools and power tools. ; Installs special functional and structural parts in devices, using hand tools. ; Starts devices to test their performance. ; Lubricates and cleans parts. ; May set up and operate lathe, drill press, grinder, and other metalworking tools to make and repair parts. ; May initiate purchase order for parts and machines. ; Change reverse osmosis membranes. ; Repair leaks. ; Replace pump seals. ; Perform LOTO activities as needed.