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.

Test newly installed equipment to ensure that it meets specifications, such as stopping at floors for set amounts of time.

Locate malfunctions in brakes, motors, switches, and signal and control systems, using test equipment.

Check that safety regulations and building codes are met, and complete service reports verifying conformance to standards.

Connect electrical wiring to control panels and electric motors.

Adjust safety controls, counterweights, door mechanisms, and components such as valves, ratchets, seals, and brake linings.

Read and interpret blueprints to determine the layout of system components, frameworks, and foundations, and to select installation equipment.

Inspect wiring connections, control panel hookups, door installations, and alignments and clearances of cars and hoistways to ensure that equipment will operate properly.

Disassemble defective units, and repair or replace parts such as locks, gears, cables, and electric wiring.

Maintain log books that detail all repairs and checks performed.