# Mechanical Door Repairers > Install, service, or repair automatic door mechanisms and hydraulic doors. Includes garage door mechanics. - Code: 49-9011.00 (O*NET-SOC; SOC 2018 49-9011) - Family: [Installation, Maintenance & Repair](https://foundation.org.ai/occupations#family-49), one of its 52 occupations - Tasks: 25 tasks (19 core and 6 supplemental) - Page: https://foundation.org.ai/occupations/49-9011.00 - JSON: https://foundation.org.ai/data/tasks/49-9011.00.json ## What the work is made of 1. Wind large springs with upward motion of arm. Core task · Task 8388 · Rated by 111 people who do the job, July 2015 2. Adjust doors to open or close with the correct amount of effort, or make simple adjustments to electric openers. Core task · Task 8387 · Rated by 112 people who do the job, July 2015 3. Carry springs to tops of doors, using ladders or scaffolding, and attach springs to tracks to install spring systems. Core task · Task 8394 · Rated by 111 people who do the job, July 2015 4. Repair or replace worn or broken door parts, using hand tools. Core task · Task 8393 · Rated by 112 people who do the job, July 2015 5. Complete required paperwork, such as work orders, according to services performed or required. Core task · Task 8391 · Rated by 111 people who do the job, July 2015 6. Fasten angle iron back-hangers to ceilings and tracks, using fasteners or welding equipment. Core task · Task 8392 · Rated by 111 people who do the job, July 2015 7. Collect payment upon job completion. Core task · Task 8390 · Rated by 111 people who do the job, July 2015 8. Install door frames, rails, steel rolling curtains, electronic-eye mechanisms, or electric door openers and closers, using power tools, hand tools, and electronic test equipment. Core task · Task 8397 · Rated by 111 people who do the job, July 2015 9. Inspect job sites, assessing headroom, side room, or other conditions to determine appropriateness of door for a given location. Core task · Task 8389 · Rated by 110 people who do the job, July 2015 10. Assemble and fasten tracks to structures or bucks, using impact wrenches or welding equipment. Core task · Task 8399 · Rated by 111 people who do the job, July 2015 11. Set doors into place or stack hardware sections into openings after rail or track installation. Core task · Task 8395 · Rated by 110 people who do the job, July 2015 12. Operate lifts, winches, or chain falls to move heavy curtain doors. Core task · Task 8403 · Rated by 110 people who do the job, July 2015 13. Remove or disassemble defective automatic mechanical door closers, using hand tools. Core task · Task 8396 · Rated by 112 people who do the job, July 2015 14. Fabricate replacements for worn or broken parts, using welders, lathes, drill presses, or shaping or milling machines. Core task · Task 8409 · Rated by 110 people who do the job, July 2015 15. Prepare doors for hardware installation, such as drilling holes to install locks. Core task · Task 20805 · Rated by 111 people who do the job, July 2015 16. Run low voltage wiring on ceiling surfaces, using insulated staples. Core task · Task 8400 · Rated by 111 people who do the job, July 2015 17. Cut door stops or angle irons to fit openings. Core task · Task 8401 · Rated by 108 people who do the job, July 2015 18. Study blueprints and schematic diagrams to determine appropriate methods of installing or repairing automated door openers. Core task · Task 8402 · Rated by 111 people who do the job, July 2015 19. Install dock seals, bumpers, or shelters. Core task · Task 8408 · Rated by 111 people who do the job, July 2015 20. Order replacement springs, sections, or slats. Supplemental task · Task 8404 · Rated by 110 people who do the job, July 2015 21. Lubricate door closer oil chambers, and pack spindles with leather washers. Supplemental task · Task 8407 · Rated by 110 people who do the job, July 2015 22. Set in and secure floor treadles for door-activating mechanisms, and connect power packs and electrical panelboards to treadles. Supplemental task · Task 8406 · Rated by 107 people who do the job, July 2015 23. Cover treadles with carpeting or other floor covering materials, and test systems by operating treadles. Supplemental task · Task 8411 · Rated by 109 people who do the job, July 2015 24. Bore or cut holes in flooring as required for installation, using hand or power tools. Supplemental task · Task 8405 · Rated by 112 people who do the job, July 2015 25. Clean door closer parts, using caustic soda, rotary brushes, or grinding wheels. Supplemental task · Task 8410 · Rated by 111 people who do the job, July 2015 ## 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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