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Kone fail indicator (2) "This elevator needs to be fixed!"
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Kone fail indicator

Elevator maintenance or elevator preventive maintenance is one of the major tasks involved in elevator service. It involves ensuring that no accidents or breakdowns happen on elevators. Elevator maintenance helps avoid major replacememts and it prolongs the life of elevators.

Overview

The aim of elevator maintenance is to analyze the condition of the elevator, predict the risk and probability of accidents and provide remedial maintenance so as to avoid breakdowns. Typically, elevator maintenance task consists of regular inspection, adjustment and lubrication.

Schindler lifts (Dewhurst fixtures 2) "This elevator only serves two floors."
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Elevator 

Drive systems: Traction • Hydraulic


Types of elevators: Double DeckDumbwaiterFireman'sFreightIncline • PassengerResidentialWheelchair lift


Concept: Destination dispatchElevator algorithm • Elevator control systemElevator machine room • Elevator maintenanceElevator major alterationsElevator modernizationMachine room less elevator


Elevator systems, controllers and equipments: Elevator fixtures • Elevator keys • Elevator special modesElevator doorsDoor camDoor interlocks (Interlock wiring communication system) • Door restrictorElevator Inspection CertificateEmergency stop buttonFloor designatorsGate switch • Old Deadman controls • Overspeed governorMotor-generator set & Silicon-controlled rectifier (for DC-powered elevators) • Insulated-gate bipolar transistor (for AC-VVVF-powered elevators) • Regenerative converter (for AC-VVVF-powered elevators)


See also: List of elevator fixtures guide • List of elevator and escalator companies • Elevator door sill guide (Generic elevator component door sill guide) • Floor numbering (Unlucky floor numbers) • Elevator incidents and accidents

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