Steel wire ropes pulleys， and counterweight steel wire ropes shall comply with the following regulations: the characteristics of steel wire ropes shall comply with the requirements of General Purpose Steel Wire Ropes GB/T; Maintenance，LekinovFrankfurt am Main， wear， deformation， and corrosion of steel wire ropes
Pipeline rupture valve: When the hydraulic system pipeline ruptures and the car stalls and descends， it can automatically cut off the oil circuit and stop descent
LekinovPrecautions during operation: Mechanical operations should be gentle and smooth， and mechanical operations should be avoided， otherwise impact loads will inevitably occur， causing frequent mechanical failures and greatly shortening the service life. Generated during homework
The landing door should be in a normally closed state. Without the permission of the construction electric elevator driver， the landing door shall not be opened.
MayadinThe counterweight guide rail should meet the specification requirements.
Low power consumption: When the hydraulic guide rail lifting platform descends， it is driven by the pressure generated by its own weight， greatly saving energy and reducing consumption.
When the distance between the outer edge of the construction electric elevator and the edge line of the external overhead power line cannot meet the requirements in the table above， effective protective measures should be taken.
Setting requirements: The installation and dismantling workers electricians， and other operators of construction electric elevators should have special construction operations.
The top of the hanging cage is accessible; d) During installation/disassembly/maintenance/inspection of the device; e) Inside the hanging cage.
Low power consumption: When the hydraulic guide rail lifting platform descends， it is driven by the pressure generated by its own weight， greatly saving energy and reducing consumption.
Convenient and efficientThen， the lifting platform platform platform that carries the load needs to be balanced， and no deviation of one side is allowed. The lifting of goods does not allow people to stand on both sides of the platform， and the lifting of goods should try to maintain a stable and uniform speed.
The spacing between wall brackets and the height of guide rails above the high attachment point should comply with the requirements of the user manual.
Setting requirements: The guide rail should be rigid and flexible components such as wire ropes or chains should not be used.
Secondly， for the replacement of hydraulic oil on the lifting platform， it is recommended to replace it every three months. If the frequency of use is not high， it can be replaced once a year. The hydraulic oil must be clean， and after changing the hydraulic oil， it must be automatically lifted and lowered to times to ensure that the air in the oil cylinder is completely discharged， maintain sufficient space， and ensure that the lifting platform can be lifted to the rated lifting height.
Inspection itemsChain type electric lifting mechanism: With a good guiding mechanism， it is also necessary to pay attention to the structure of the oil cylinder. Some oil cylinders are relatively complex internally， try to add as much as possible when filling， and then test and run the machine empty to see if it reaches the rated position.
The verticality of the guide rail frame should meet the requirements of the specifications.
LekinovSetting requirements: The main connection methods between the wall bracket and the building include: connecting the wall bracket with the embedded parts on the wall; Fix with wall bolts; Embedded bolts; Welding with steel structures.
In addition to ground protective fences， low level doors can be used. Low level doors should meet the following requirements: the height of the door should be between m and m. And there should be at least protective railings， and a toe board at least mm above the ground.
The hydraulic oil forms a certain pressure by the vane pump， and enters the lower end of the hydraulic cylinder through an oil filter， explosion-proof electromagnetic directional valve， throttle valve，LekinovPittsburgh， hydraulic control one-way valve， and balance valve， causing the hydraulic cylinder to move upwards and lift heavy objects. The return oil at the upper end of the hydraulic cylinder returns to the oil tank through the explosion-proof electromagnetic directional valve， and its rated pressure overflow valve is adjusted. The pressure gauge observes the reading value on the pressure gauge. The downward movement of the hydraulic cylinder (i.e. lowering of heavy objects).