According to people in this career, the main tasks are...
| Task | Importance |
|---|---|
| Wind large springs with upward motion of arm. | 83% |
| Adjust doors to open or close with the correct amount of effort, or make simple adjustments to electric openers. | 82% |
| Order replacement springs, sections, or slats. | 82% |
| Carry springs to tops of doors, using ladders or scaffolding, and attach springs to tracks to install spring systems. | 81% |
| Repair or replace worn or broken door parts, using hand tools. | 81% |
| Complete required paperwork, such as work orders, according to services performed or required. | 80% |
| Fasten angle iron back-hangers to ceilings and tracks, using fasteners or welding equipment. | 80% |
| 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. | 80% |
| Collect payment upon job completion. | 80% |
| Inspect job sites, assessing headroom, side room, or other conditions to determine appropriateness of door for a given location. | 78% |
| Assemble and fasten tracks to structures or bucks, using impact wrenches or welding equipment. | 77% |
| Set doors into place or stack hardware sections into openings after rail or track installation. | 75% |
| Lubricate door closer oil chambers, and pack spindles with leather washers. | 74% |
| Operate lifts, winches, or chain falls to move heavy curtain doors. | 74% |
| Remove or disassemble defective automatic mechanical door closers, using hand tools. | 73% |
| Fabricate replacements for worn or broken parts, using welders, lathes, drill presses, or shaping or milling machines. | 73% |
| Prepare doors for hardware installation, such as drilling holes to install locks. | 72% |
| Run low voltage wiring on ceiling surfaces, using insulated staples. | 72% |
| Cut door stops or angle irons to fit openings. | 71% |
| Study blueprints and schematic diagrams to determine appropriate methods of installing or repairing automated door openers. | 70% |
| Install dock seals, bumpers, or shelters. | 67% |
| Set in and secure floor treadles for door-activating mechanisms, and connect power packs and electrical panelboards to treadles. | 64% |
| Cover treadles with carpeting or other floor covering materials, and test systems by operating treadles. | 59% |
| Bore or cut holes in flooring as required for installation, using hand or power tools. | 57% |
| Clean door closer parts, using caustic soda, rotary brushes, or grinding wheels. | 55% |
