The lifting platform vehicle is an ideal equipment for construction, maintenance, and repair operations in industries such as power, communication, transportation, municipal, fire protection, rescue, and construction. With the vigorous development of China's national economy, the demand for lift platform trucks is rapidly increasing. The lifting methods of the platform truck include folding, telescopic (extension and retraction metaphorically refer to flexibility within certain limits), and hybrid. The working height ranges from tens of meters to tens of meters, and the leveling method of its working platform has undergone a development process from self weight leveling to electro-hydraulic leveling. At the same time, the equipment may also encounter some common problems, and we need to do a good job in maintaining the elevator.
common problem
The elevators have been inspected and debugged before leaving the factory, and all technical indicators (target aim) meet the design requirements. When in use, only the power supply needs to be connected, and the hydraulic and electrical systems do not need to be adjusted. Attention should be paid to the use of elevators, which must be placed on a solid and flat ground to prevent tipping over during operation. Press the "up" or "down" button to raise or lower the workbench. If the workbench does not move, it should be stopped immediately for inspection. When the working pressure of the electric elevator is found to be too high or the sound is abnormal, it should be immediately shut down for inspection to avoid serious damage to the machinery (vandalism); Regularly check the working status of the shaft pin every month. If the shaft pin or screw is found to be loose, it must be locked to prevent accidents caused by the shaft pin falling off. Hydraulic oil should be kept clean and replaced every 6 months; When repairing, maintaining, and cleaning elevators, it is necessary to support the safety pole.
Elevator maintenance
1. Monthly maintenance
When personnel enter the interior of the lifting platform for maintenance, they must lift the elevator to prevent sudden descent of the platform, which may cause casualties. ?
A. Check the rollers, intermediate shaft, and bearings; Oil cylinder pin and bearing; Lubrication and wear of the arm frame hinge shaft and bearings; ?
B. Add lubricating oil to the above components. Extend the service life of bearings. ?
C. Check the quality and level of hydraulic oil.
When the lifting platform is raised, the hydraulic oil level should be 4050 millimeters above the bottom of the oil tank. When the color of hydraulic oil becomes darker, the oil quality becomes sticky, or there are foreign objects such as gravel in the oil, the hydraulic oil should be replaced in a timely manner. The hydraulic system of the lifting platform uses 32 # hydraulic oil. ?
2. Year end maintenance
A. Check the hydraulic and pipeline connection parts. If the pipeline is damaged, it should be replaced immediately; Tighten the pipe joint when there is looseness in the connection area. ?
B. Remove and disassemble the lowering valve, blow the valve core clean with compressed air, and then reinstall it. ?
C. Drain all hydraulic oil from the tank, open the tank, remove the oil suction filter, clean it, and place it back in the tank. Install it in its original position. Fill the fuel tank with new oil.
The scarcity of land resources has led to the utilization of multi-level spaces, thereby promoting the development of this industry. Technology is developing and the times are advancing, and people will also keep up with the market by developing new hydraulic lifting platforms to meet the growing social demand.
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