# Maintenance and Repair Workers, General > Perform work involving the skills of two or more maintenance or craft occupations to keep machines, mechanical equipment, or the structure of a building in repair. Duties may involve pipe fitting; HVAC maintenance; insulating; welding; machining; carpentry; repairing electrical or mechanical equipment; installing, aligning, and balancing new equipment; and repairing buildings, floors, or stairs. - Code: 49-9071.00 (O*NET-SOC; SOC 2018 49-9071) - Family: [Installation, Maintenance & Repair](https://foundation.org.ai/occupations#family-49), one of its 52 occupations - Tasks: 27 tasks (21 core and 6 supplemental) - Page: https://foundation.org.ai/occupations/49-9071.00 - JSON: https://foundation.org.ai/data/tasks/49-9071.00.json ## What the work is made of 1. Perform routine maintenance, such as inspecting drives, motors, or belts, checking fluid levels, replacing filters, or doing other preventive maintenance actions. Core task · Task 20671 · Rated by 164 people who do the job, August 2021 2. Inspect, operate, or test machinery or equipment to diagnose machine malfunctions. Core task · Task 3024 · Rated by 167 people who do the job, August 2021 3. Adjust functional parts of devices or control instruments, using hand tools, levels, plumb bobs, or straightedges. Core task · Task 3030 · Rated by 168 people who do the job, August 2021 4. Repair machines, equipment, or structures, using tools such as hammers, hoists, saws, drills, wrenches, or equipment such as precision measuring instruments or electrical or electronic testing devices. Core task · Task 20672 · Rated by 166 people who do the job, August 2021 5. Order parts, supplies, or equipment from catalogs or suppliers. Core task · Task 20674 · Rated by 165 people who do the job, August 2021 6. Diagnose mechanical problems and determine how to correct them, checking blueprints, repair manuals, or parts catalogs, as necessary. Core task · Task 3023 · Rated by 166 people who do the job, August 2021 7. Design new equipment to aid in the repair or maintenance of machines, mechanical equipment, or building structures. Core task · Task 20679 · Rated by 168 people who do the job, August 2021 8. Assemble, install, or repair wiring, electrical or electronic components, pipe systems, plumbing, machinery, or equipment. Core task · Task 3022 · Rated by 165 people who do the job, August 2021 9. Clean or lubricate shafts, bearings, gears, or other parts of machinery. Core task · Task 3026 · Rated by 165 people who do the job, August 2021 10. Estimate costs to repair machinery, equipment, or building structures. Core task · Task 20678 · Rated by 166 people who do the job, August 2021 11. Align and balance new equipment after installation. Core task · Task 3033 · Rated by 167 people who do the job, August 2021 12. Record type and cost of maintenance or repair work. Core task · Task 3025 · Rated by 166 people who do the job, August 2021 13. Maintain or repair specialized equipment or machinery located in cafeterias, laundries, hospitals, stores, offices, or factories. Core task · Task 20673 · Rated by 166 people who do the job, August 2021 14. Dismantle machines, equipment, or devices to access and remove defective parts, using hoists, cranes, hand tools, or power tools. Core task · Task 20670 · Rated by 166 people who do the job, August 2021 15. Plan and lay out repair work, using diagrams, drawings, blueprints, maintenance manuals, or schematic diagrams. Core task · Task 3028 · Rated by 166 people who do the job, August 2021 16. Install equipment to improve the energy or operational efficiency of residential or commercial buildings. Core task · Task 19898 · Rated by 166 people who do the job, August 2021 17. Set up and operate machine tools to repair or fabricate machine parts, jigs, fixtures, or tools. Core task · Task 3035 · Rated by 165 people who do the job, August 2021 18. Perform general cleaning of buildings or properties. Core task · Task 20675 · Rated by 166 people who do the job, August 2021 19. Train or manage maintenance personnel or subcontractors. Core task · Task 20676 · Rated by 166 people who do the job, August 2021 20. Fabricate or repair counters, benches, partitions, or other wooden structures, such as sheds or outbuildings. Core task · Task 3037 · Rated by 168 people who do the job, August 2021 21. Paint or repair roofs, windows, doors, floors, woodwork, plaster, drywall, or other parts of building structures. Core task · Task 3031 · Rated by 166 people who do the job, August 2021 22. Perform routine maintenance on boilers, such as replacing burners or hoses, installing replacement parts, or reinforcing structural weaknesses to ensure optimal boiler efficiency. Supplemental task · Task 19899 · Rated by 165 people who do the job, August 2021 23. Provide groundskeeping services, such as landscaping or snow removal. Supplemental task · Task 20677 · Rated by 165 people who do the job, August 2021 24. Operate cutting torches or welding equipment to cut or join metal parts. Supplemental task · Task 3032 · Rated by 165 people who do the job, August 2021 25. Inspect used parts to determine changes in dimensional requirements, using rules, calipers, micrometers, or other measuring instruments. Supplemental task · Task 3034 · Rated by 164 people who do the job, August 2021 26. Assemble boilers at installation sites, using tools such as levels, plumb bobs, hammers, torches, or other hand tools. Supplemental task · Task 19897 · Rated by 166 people who do the job, August 2021 27. Position, attach, or blow insulating materials to prevent energy losses from buildings, pipes, or other structures or objects. Supplemental task · Task 19900 · Rated by 165 people who do the job, August 2021 ## More in Installation, Maintenance & Repair - [Aircraft Mechanics and Service Technicians](https://foundation.org.ai/occupations/49-3011.00): 38 tasks - [Audiovisual Equipment Installers and Repairers](https://foundation.org.ai/occupations/49-2097.00): 11 tasks - [Automotive Body and Related Repairers](https://foundation.org.ai/occupations/49-3021.00): 25 tasks - [Automotive Glass Installers and Repairers](https://foundation.org.ai/occupations/49-3022.00): 18 tasks - [Automotive Service Technicians and Mechanics](https://foundation.org.ai/occupations/49-3023.00): 30 tasks - [Avionics Technicians](https://foundation.org.ai/occupations/49-2091.00): 13 tasks - [Bicycle Repairers](https://foundation.org.ai/occupations/49-3091.00): 14 tasks - [Bus and Truck Mechanics and Diesel Engine Specialists](https://foundation.org.ai/occupations/49-3031.00): 26 tasks - [Camera and Photographic Equipment Repairers](https://foundation.org.ai/occupations/49-9061.00): 15 tasks - 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