1、重庆货梯液压油变质或有杂质，液压油长时间利用后，液压油内大概有杂质或已变质，取样举行查抄，看是否含流体颗粒物、变色、变臭，须要时要改换液压油。
Hangzhou cargo elevator hydraulic oil deterioration or impurities, after a long time of use of hydraulic oil, the hydraulic oil is probably a matter of impurities or has gone bad, sampling inspection, to see whether the fluid particles,color, change, need to change the hydraulic oil.

2、杭州货梯液压泵也是影响液压油流量的关键因素，液压泵在经过长久使用之后，会容易引起磨损，杭州货梯速率变慢时，应查抄液压泵供油流量是否不变，若现磨损及时与厂家联络，以避免过保修期。
Hangzhou cargo ladder hydraulic pump is also a key factor affecting the flow of hydraulic oil, hydraulic pump in a long period of use, will easily lead to wear and tear, Hangzhou cargo flow rate is slow, should check the hydraulic pump flow is constant, if the current wear and manufacturers to contact, in order to avoid the repair period.