Elevator installers and repairers install, maintain, and repair elevators.
Elevator installers put in new elevators. They read blueprints to plan each step of the installation process. Elevator installers put in guide rails to guide the elevator as it moves up and down. If the rails are not the right length, installers cut them to fit. Installers weld or bolt the rails to the walls of the elevator shaft. Elevator installers put in the electrical wiring. They also put together the elevator cars, platforms, walls, and doors. Finally, installers put in the equipment that moves the cars. This type of equipment varies. Some elevators use cables to raise the cars and some use hydraulics.
Once the elevator is running, installers test it to make sure the elevator is working correctly. Installers make adjustments to the elevator so that it is working properly and can pass inspection.
Sometimes elevator installers put in dumbwaiters, which are similar to small elevators. Other installers put in escalators. Occasionally they replace old elevators with new systems.
Elevator installers also maintain elevators or fix those that are broken. They may run tests to find out what is wrong. Repairers oil or clean the moving parts and replace worn parts. Repairers fill out service reports with the details of their work.
Elevator installers and repairers must keep their skills up to date. They may take courses from elevator manufacturers to learn about new technology. Installers and repairers need some knowledge about how to repair computers because computers are used to control some elevators.