Elevator installers and repairers typically do the following:

• Read blueprints to determine the equipment needed for installation or repair
• Install or repair elevator doors, cables, motors, and control systems
• Locate malfunctions in brakes, motors, switches, and control systems
• Connect electrical wiring to control panels and electric motors
• Use test equipment, such as ammeters and voltmeters, to diagnose problems
• Adjust counterweights, door mechanisms, and safety controls
• Test newly installed equipment to ensure that it meets specifications
• Ensure elevator compliance with safety regulations and building codes
• Keep service records of all maintenance and repair tasks

Elevator installers and repairers, also called elevator constructors or elevator mechanics, assemble, install, maintain, and replace elevators, escalators, chairlifts, moving walkways, and similar equipment in buildings.

Elevator installers and repairers usually specialize in installation, maintenance, or repair work. Maintenance and repair workers generally require greater knowledge of electronics, hydraulics, and electricity than do installers because a large part of maintenance and repair work is troubleshooting. Today, most elevators have computerized control systems, resulting in more complex systems and troubleshooting than in the past.

After an elevator is installed, elevator installers and repairers must regularly maintain and service it to keep the elevator working properly. Workers generally perform preventive maintenance, such as oiling and greasing moving parts, replacing worn parts, and adjusting equipment for optimal performance. They also troubleshoot and may be called to perform emergency repairs. Workers who specialize in elevator maintenance typically service many of the same elevators on multiple occasions over time.

A service crew usually handles major repairs - for example, replacing cables, elevator doors, or machine bearings. These tasks may require the use of cutting torches or rigging equipment - tools that an elevator repairer would not normally carry. Service crews also perform major modernization and alteration work, such as replacing electric motors, hydraulic pumps, and control panels.

The following are examples of types of elevator installers and repairers:

Adjusters specialize in fine-tuning all the equipment after installation. They ensure that an elevator operates according to specifications and stops correctly at each floor within a specified time. Adjusters need a thorough knowledge of electronics and computers to ensure that newly installed elevators operate properly.

Assistant mechanics have completed a 4-year apprenticeship program, and although they are fully trained, they typically work under the guidance of a more experienced mechanic.