Periodic Maintenance and Modernization of Elevator Doors

DateNovember-December, 2017 Ömer Gürkan Gürbüz - P&D Manager / Electronic Engineer Print

“Periodic maintenance” refers to the processes carried out periodically every month after the commissioning of the elevator by the elevator assembler or authorized service provider in order to ensure the maximum safety requirements and the revision according to the current legislation over the lifetime of the system. The Building manager is responsible for the inspection of the elevators at least once a year and maintenance once a month, according to the requirements of the “Elevator Maintenance, Operating and Periodic Control.” The purpose of this periodic maintenance is to inspect the health of this electromechanical system in order to prevent loss of life or permanent injuries, as well as minimizing the operational wastes.

The following are maintenance methods for elevator cars and doors in system maintenance that should be performed once a month:

  • levator doors must be checked thoroughly for dust and corrosion.
  • ails and rail pulleys must be cleaned on a monthly basis.
  • hreshold ducts on which the panels move must be cleaned on a monthly basis.
  • teel ropes on the panel conveyors must be examined every 6 months, and refraction detection must be performed.
  • f vibration is detected in the car and door panels, this may be caused by worn or broken rail pulleys or dust accumulation between the rail and pulley. In such cases, cleaning must be done and worn materials must be replaced.
  • f the lower part of the panel gets behind (10-20mm) and generates noise when the panels move, the throttle adjustment must be checked.
  • cidic cleaning products must never be used for the cleaning of panels.
  • ock and counterparts of lock must be adjusted to ensure that the door locks are fully fastened up.
  • qual distance of safety contacts (plug contact) must be endured, and oxidation in the contact springs, if present, must be eliminated.
  • The mechanical health of an elevator more than 10 years old is ensured with modernization application, not with periodic maintenance processes. The maintenance of old elevator systems leads to the delay of primary system requirements of the elevator and the ignoring of deficiencies in view of constantly increasing load and traffic intensity.

    Why Modernization?

    The secure lifetime of elevators is about 10 years. The dynamic components making up the system are worn over time due to the friction caused by the force-acceleration relation, and operating efficiency of elevators decreases because of metal fatigue. The dynamic parts exposed to tension continuously constitute the basic safety gear of the elevator. The mechanical health of the system must be elaborated in order to ensure that the safety devices run efficiently and safety criteria are met. Re-configuration of the elevators, making them meet the safety criteria in accordance with relevant elevator directives, offers energy savings as well as higher speed and comfort, and gives the elevator a modern and aesthetic appearance.

    The products manufactured with the technology of old times have been used up to today, especially in buildings in European countries, and they are still being used. However, these products need to be modernized in terms of safety and the legislation in force. At this point, we can redesign the elevator doors for modernization applications at Merih Asansör. In this way, we allow the elevator doors to be modern and secure in totally 110 mm, including running clearance of hall and car doors. The product called L-FIT is a compact door model designed with minimum dimensions for the revision process of old elevators. Moreover, we can design most of our products in compliance with the modernization in the direction of customer demands, such as multi-panel, telescopic and center-opening, serially manufactured in our manufacturing plant if the shaft conditions are convenient. We export our L-FIT model doors to many countries, especially European countries.🌐