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| Assist pipe fitters in the layout, assembly, and installation of piping for air, ammonia, gas, and water systems. |
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| Clean and renew steam traps. |
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| Clean shop, work area, and machines, using solvent and rags. |
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| Cut or drill holes in walls or floors to accommodate the passage of pipes. |
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| Cut pipe and lift up to fitters. |
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| Disassemble and remove damaged or worn pipe. |
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| Excavate and grade ditches, and lay and join pipe for water and sewer service. |
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| Fill pipes with sand or resin to prevent distortion, and hold pipes during bending and installation. |
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| Fit or assist in fitting valves, couplings, or assemblies to tanks, pumps, or systems, using hand tools. |
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| Immerse pipe in chemical solution to remove dirt, oil, and scale. |
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| Install gas burners to convert furnaces from wood, coal, or oil. |
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| Measure, cut, thread and assemble new pipe, placing the assembled pipe in hangers or other supports. |
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| Mount brackets and hangers on walls and ceilings to hold pipes, and set sleeves or inserts to provide support for pipes. |
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| Perform rough-ins, repair and replace fixtures and water heaters, and locate, repair, or remove leaking or broken pipes. |
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| Requisition tools and equipment, select type and size of pipe, and collect and transport materials and equipment to work site. |