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Assemble, install, repair, and maintain elevators, escalators, moving sidewalks, and dumbwaiters, using hand and power tools, and testing devices such as test lamps, ammeters, and voltmeters.
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Bolt or weld steel rails to the walls of shafts to guide elevators, working from scaffolding or platforms.
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Maintain log books that detail all repairs and checks performed.
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Assemble electrically powered stairs, steel frameworks, and tracks, and install associated motors and electrical wiring.
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Cut prefabricated sections of framework, rails, and other components to specified dimensions.
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Connect electrical wiring to control panels and electric motors.
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Connect car frames to counterweights, using steel cables.
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Adjust safety controls, counterweights, door mechanisms, and components such as valves, ratchets, seals, and brake linings.
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Check that safety regulations and building codes are met, and complete service reports verifying conformance to standards.
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Locate malfunctions in brakes, motors, switches, and signal and control systems, using test equipment.
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Install electrical wires and controls by attaching conduit along shaft walls from floor to floor and pulling plastic-covered wires through the conduit.
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Install outer doors and door frames at elevator entrances on each floor of a structure.
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Test newly installed equipment to ensure that it meets specifications, such as stopping at floors for set amounts of time.
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Operate elevators to determine power demands, and test power consumption to detect overload factors.
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Attach guide shoes and rollers to minimize the lateral motion of cars as they travel through shafts.
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Read and interpret blueprints to determine the layout of system components, frameworks, and foundations, and to select installation equipment.
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Participate in additional training to keep skills up to date.
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Inspect wiring connections, control panel hookups, door installations, and alignments and clearances of cars and hoistways to ensure that equipment will operate properly.
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Disassemble defective units, and repair or replace parts such as locks, gears, cables, and electric wiring.
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Assemble elevator cars, installing each car's platform, walls, and doors.