Construct, assemble, or rebuild machines, such as engines, turbines, and similar equipment used in such industries as construction, extraction, textiles, and paper manufacturing.

• Assembler
• Assembler, Aircraft Power Plant
• Assembler, Internal Combustion Engine
• Assembler, Mining Machinery
• Assembler, Steam-and-Gas Turbine
• Blower and Compressor Assembler
• Diesel-Engine Erector
• Electric-Motor-and-Generator Assembler
• Farm-Machinery Set-Up Mechanic
• Injector Assembler
• Internal-Combustion-Engine Subassembler
• Machine Assembler
• Machine Builder
• Progressive Assembler And Fitter
• Rotary-Engine Assembler
• Sewing-Machine Assembler
• Subassembler
• Turbine Subassembler
• Turbine-Blade Assembler

• Assemble systems of gears by aligning and meshing gears in gearboxes.
• Fasten and install piping, fixtures, or wiring and electrical components to form assemblies or subassemblies, using hand tools, rivet guns, and welding equipment.
• Inspect, operate, and test completed products to verify functioning, machine capabilities, and conformance to customer specifications.
• Lay out and drill, ream, tap, and cut parts for assembly.
• Maintain and lubricate parts and components.
• Position and align components for assembly, manually or using hoists.
• Read and interpret assembly blueprints and specifications manuals, and plan assembly or building operations.
• Remove rough spots, and smooth surfaces to fit, trim, or clean parts, using hand tools and power tools.
• Rework, repair, and replace damaged parts or assemblies.
• Set and verify parts clearances.
• Set up and operate metalworking machines, such as milling and grinding machines, to shape or fabricate parts.
• Verify conformance of parts to stock lists and blueprints, using measuring instruments such as calipers, gauges, and micrometers.

• adhere to safety procedures
• align or adjust clearances of mechanical components or parts
• assemble and install pipe sections, fittings, or plumbing fixtures
• assemble gear systems
• assemble, dismantle, or reassemble equipment or machinery
• conduct performance testing
• conduct tests to locate mechanical system malfunction
• diagnose mechanical problems in machinery or equipment
• examine products or work to verify conformance to specifications
• fabricate, assemble, or disassemble manufactured products by hand
• identify properties of metals for repair or fabrication activities
• install electrical fixtures or components
• install equipment or attachments on machinery or related structures
• lay out machining, welding or precision assembly projects
• lubricate machinery, equipment, or parts
• maintain welding machines or equipment
• make independent judgment in assembly procedures
• monitor the quantity of assembly output
• move or fit heavy objects
• operate crane in construction, manufacturing or repair setting
• operate hoist, winch, or hydraulic boom
• operate vehicle engine electrical system test equipment
• overhaul power-generating equipment or machinery
• perform safety inspections in industrial, manufacturing or repair setting
• plan or organize work
• read blueprints
• read schematics
• read specifications
• read technical drawings
• read work order, instructions, formulas, or processing charts
• repair or replace malfunctioning or worn mechanical components
• set up and operate variety of machine tools
• sharpen metal objects
• solder electrical or electronic connections or components
• test mechanical products or equipment
• understand service or repair manuals
• understand technical operating, service or repair manuals
• use acetylene welding/cutting torch
• use arc welding equipment
• use combination welding procedures
• use electrical or electronic test devices or equipment
• use hand or power tools
• use knowledge of metric system
• use knowledge of welding filler rod types
• use machine tools in installation, maintenance, or repair
• use precision measuring devices in mechanical repair work
• use precision measuring tools or equipment
• use soldering equipment
• use technical information in manufacturing or industrial activities
• verify levelness or verticality, using level or plumb bob
• weld together metal parts, components, or structures