升降貨梯廠家認為，升降貨梯的液壓部分混入空氣對設備是不利的，應該清楚混入空氣的原因，在使用過程中多加預防。我們首先要明確混入空氣的幾個可能性的原因。Elevator goods ladder manufacturers believe that the lifting of the hydraulic part of the cargo ladder into the air is unfavorable to the equipment, it should be clear that the reasons for mixing with the air, in the course of the use of more prevention. We first have to clarify the reasons for the possibility of mixing with air.
 
1.液壓升降貨梯油箱中油面過低或升降平臺吸油管未埋入油液下面造成吸油不暢而吸入空氣。Oil hydraulic cargo lift tank is too low or the lifting platform without the oil suction pipe below the suction caused by poor air inhaled.

2.油泵吸油管處的濾油器被污物堵住或者是濾油器出現(xiàn)了問題，導致出現(xiàn)吸油不暢形成局部真空。The oil filter at the oil pump suction pipe is blocked by dirt or oil filter, which leads to the formation of local vacuum.

3.液壓升降貨梯油箱中吸油管與凹油管相距太近，攪拌油液產(chǎn)生氣泡，氣泡未來得及消泡就被吸入。Hydraulic lift cargo ladder in the oil suction pipe and the oil pipe is too close to the ground, stirring oil bubbles, bubbles have not been able to bubble when inhaled.

4.升降貨梯間油管在油面以上，當升降平臺停機時，從問油管逆流而入(缸內有負壓時)。Lifting elevator between the tubing on the oil surface, when the lifting platform is stopped, asked from (cylinder and countercurrent tubing negative pressure).

5.升降貨梯各油管接頭，閥與閥安裝板的連接處密封不嚴，或因振動、松動等原因，空氣乘隙混入。The lifting elevator pipe joint sealing connection valve and valve mounting plate, or because of vibration, loosening and other reasons, by the mixed air.

6.升降貨梯廠家 http://www.qdysj.net/認為，密封被損、老化變質或因密封質量差，是液壓系統(tǒng)混入空氣的重要原因。Elevator goods ladder manufacturers believe that the seal is damaged, deterioration or poor quality due to poor sealing, hydraulic system is an important cause of air mixed.