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