How Old Lifts Can Be Replaced?
In India, multi-storey buildings started coming up in the 1970s. The design of the old model lifts is such that they consume a lot of electrical power and create abnormal sounds during their operation. Moreover, they just have very basic safety features. Typically, a lift can be operated for only 15 years. After that, it should be replaced with a new one as it poses a safety threat to the users. The replacement of an existing lift with a modern lift is a challenging task and a time-consuming process. Though building owners are ready to replace old lifts with new ones, the time needed to complete the task discourages them. This is because life becomes very difficult for those living in multi-storeyed buildings. It takes at least two months to remove an old lift and install a new one. This means that the lift in the building will not be operational for two months. The solution to this problem is retrofitting. It involves installing new lifts on the same foundation as that of old lifts. However, retrofitting should be attempted only with the help of expert lift technicians who have successfully completed a lift technician training course from a lift technician training institute. This helps you to enhance the lifespan of the lift and ensure its smooth and silent operation. As far as possible it is also important to get the lift replacement work done only by an expert lift technician who has studied in the best lift training institute in Kerala so that the quality of installation can be ensured.
All leading lift manufacturers around the world have started providing retrofitting kits in the market. The new lifts are more energy-efficient and they come with the latest security features including the automatic rescue device. It makes financial sense to replace elevators that have completed their specified lifespan with new ones. It is also essential to enhance the comfort level of users. With the help of a lift retrofit kit, the time needed to install a new lift can be significantly reduced. All the leading lift manufacturing brands offer these modern elevator retrofit kits. They are much better in terms of comfort, convenience, and energy efficiency. Modern lifts make faster vertical transportation possible. In addition, they operate smoothly and silently.
In order to ensure hassle-free retrofitting, it is important to get a site survey done and choose a suitable lift model based on the availability of space. Further, prior to starting the work, the survey should be done with the help of an elevator technician who has successfully completed a course in the best lift technician training institute in Kerala. This is because lift technicians make use of modern laser measuring instruments to not only accurately measure the size of the elevator shaft but also to conduct the survey. Clear planning is essential before taking up the retrofitting work to ensure that the residents of the building experience minimal inconvenience during the period when the existing lift remains shut down. The old elevator has to be dismantled first and its electro-mechanical parts such as gears, counterweight, elevator car, doors, wiring harnesses, guide rails have to be removed and those parts that can be reused have to be identified and should be reused.
As modern lifts do not require a dedicated machine room, the existing one can be used for some other purpose. Further, warning sign boards, security barricades, etc., that adhere to the rules and regulations of the country have to be put up when the lift retrofitting work is being carried out. This is to prevent any accident. Moreover, it is important to ensure that unauthorised persons are not opening and closing the lift doors. Further, hardwood panels have to be temporarily installed, and rails and other parts removed, to ensure the safety of employees and reduce the sound generated during cutting, drilling, and grinding operations and other inconveniences caused to the residents of the building. After that shaft wall, lift pit, etc., are to be cleaned and painted. The lift shaft is now ready for the installation of the new lift. However, it is important to seek help from an expert lift technician who has completed the lift mechanic training course to install the new lift.
The installation of the new lift starts from the lift pit. The bottommost rail guides are fixed properly onto the walls with the help of epoxy resin bonded Hilti or Fischer brand anchor bolts. The guide rails of the lift have to be precisely aligned as they act as a rigid structural framework and enable the lift car to move smoothly in the upright position. Great care should be taken to ensure that all the electromechanical parts of the lift are precisely aligned and properly fixed. It is the precise alignment of the rails that enables the smooth and silent operation of the lift. Lift retrofitting is a complicated process. That is why it is important to make sure that technicians who have studied at a lift mechanism training institute are employed for the erection of the lift. This ensures long and trouble-free operation of the lift.
After fixing the guide rails, the elevator car body can be assembled inside the sling frame. The top of the elevator car body can be used as the installation platform. All shaft elements, guide rails, and electrical harnesses are normally installed using the top of the car as the platform. The car is lifted upwards along the shaft using a temporary work hoist. Lift rails are installed in a similar fashion in between two balancing weights. The lift car makes use of the shallow space left between the guide rails and the corner of the shaft walls. Big elevator cars occupy maximum shaft space. The temporary hardwood panels are then removed and new automatic landing doors are installed by standing on top of the car. As the elevator controller is installed on the bottom-most floor, it will be below the car in the elevator pit.
After installing all shaft components, power cables, signal cables, control cables, and landing doors, the new hoisting unit is installed in the elevator pit. When the hoisting machine is being installed, both the balancing weights will be at the bottom of the shaft. Further, the balancing weights are connected to the hoisting machine by way of belts from the bottom and wire ropes from the top. This enables the elevator car to move up and down using the same drive. On completion of the installation as per ISI standards, testing, commissioning, and trial runs can be conducted. Before handing over the new elevator to the customer, several trial runs have to be taken. Lift technicians who have successfully completed a lift mechanic training course in the top lift technician training institute are those that are specialised in elevator retrofitting work. Therefore, the responsibility of mechanical erection, testing, and commissioning should be given only to a company that executes the jobs in a professional manner. This ensures long life and the smooth, silent, and trouble-free operation of the lift for many years.