在社會發展變化過程中，對于鋁合金升降機的需求也在產生新的變化，對個性化需求的企業也逐步增多，許多客戶在使用鋁合金升降機時更是得心應手，提高了工作效率，解決了登高難的問題，為了不影響正常使用，要做好易損部件的維護。油缸在整個鋁合金升降機升降過程中起到至關重要的作用的，也是通過它來實現貨物的上升與下降的。

1、液壓泵輸油量不足。包括液壓泵泵油量不夠，吸油阻力過大，吸油管道漏氣，油液黏度過大或油溫太低，油箱中油面高度過低以及油箱通氣孔堵塞，可能由于貨物在承載時，超載或者偏載，使得活塞桿與油缸受到損壞。
Insufficient amount of hydraulic oil. Including hydraulic pump enough oil, oil resistance is too large, oil pipeline leaks, oil viscosity is too large or the oil temperature is too low, the oil tank and fuel tank vent surface height is too low congestion, may be due at the time of carrying cargo, overloading or partial load, so that the piston rod and cylinder damage.
2、液壓泵內泄漏嚴重。如零件磨損過大、密封間隙變大、泵體因鑄造缺陷等，使鋁合金升降機壓油腔和吸油腔連通，調整的螺母和六角螺母不在正確的位置上；這時要根據判斷，更換活塞桿或油缸，不使用鋁合金升降機時把車降調最低，重新調整螺母。
Severe leakage within the pump. Such as the parts wear too large, seal gap becomes larger, the body due to casting defects, so that the aluminum lift pressure oil chamber and the suction chamber communicating, adjusting nut and hex nuts are not the correct position; then according to judge, to replace the piston rods or cylinders when not in use aluminum lift the car falling tone minimum,re-adjust the nut.
3、壓力油路的管接頭及各種閥的泄漏。如液壓缸液壓馬達的密封裝置損壞，引起內泄漏嚴重，活塞桿長時間暴露而生銹，阻礙了活塞的順利運動。
Fittings and various valves leak pressure oil passage. Such as damage to the hydraulic cylinder seals hydraulic motor, causing the leak is serious, prolonged exposure rod rust, hindering the smooth movement of the piston. 

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