Add:Room 203, No. 22-11 Zhancheng Road, Licheng District, Quanzhou City, Fujian Province
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04
2023
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05
The reason why the Elite Hydraulic Oil Pump boom cannot be lifted with load
Generally speaking, the main reasons why the Elite Hydraulic Oil Pump boom cannot be lifted are:
Generally speaking, the main reasons why the Elite Hydraulic Oil Pump boom cannot be lifted are:
a. The hydraulic pump is severely worn. When the pump is running at low speed, the leakage is serious; when it is running at high speed, the pump pressure is slightly increased, but due to the wear and internal leakage of the pump, the volumetric efficiency is significantly reduced, and it is difficult to reach the rated pressure. The long-term working of the hydraulic pump increases the wear and tear, and the oil temperature rises, which causes the wear of the hydraulic components and the aging and damage of the seals, the loss of sealing ability, the deterioration of the hydraulic oil, and finally the failure;
b. Unreasonable selection of hydraulic components. The specifications of the boom cylinder are 70/40 non-standard series, and the seals are also non-standard parts. The manufacturing cost is high and the replacement of the seals is inconvenient. The bore of the boom cylinder is small, which will inevitably make the system set pressure high;
c. The design of the Elite Hydraulic Oil Pump system is unreasonable. It can be seen from Figure 1 that the control valve and the full hydraulic steering gear are connected in series with a single pump, the setting pressure of the safety valve is 16MPa, and the rated working pressure of the hydraulic pump is also 16MPa. The hydraulic pump often works under full load or long-term overload (high pressure), and the system has a hydraulic shock. If the oil is not changed for a long time, the hydraulic oil will be polluted, which will aggravate the wear of the hydraulic pump and cause the hydraulic pump casing to burst (it was discovered later that such failures).
Elite Hydraulic Oil Pump
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Room 203, No. 22-11 Zhancheng Road, Licheng District, Quanzhou City, Fujian Province
+86-13348557878 (Mr. Sun) 、+86-15605929118 （Manager Hong）
13348557878@163.com (Mr. Sun)、15605929118@163.com (Manager Hong)
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