What is the reason for the slow lifting of the hydraulic cylinder from the top of the tower and the high oil temperature? The higher the oil temperature, the slower the jacking speed.

Excessive oil temperature will seriously affect the operation efficiency.

A, in actual operation, to comply with the provisions of the operating procedures for hydraulic oil level;

B, the choice of engine oil should be determined according to the brand recommended by the manufacturer or according to the environment and temperature factors of the machine. For some machines with special requirements, special hydraulic oil should be selected; When the maintenance of hydraulic components is inconvenient, wear-resistant hydraulic oil with good performance should be used.

C. In general, change the oil after the system works for more than 1000 hours. When changing oil, we should not only pay attention to emptying the old oil in the oil tank, but also replace the old oil in the whole system pipeline and working circuit. When refueling, it is best to use a filter screen with a mesh of 120 or more, and add enough oil according to the regulations, so that the oil has sufficient circulating cooling conditions. The fuel tank should be kept cool and well ventilated.

D. clean and replace the filter regularly. Filters with blockage indication should be replaced according to the instructions. The performance, structure and validity of the filter element must meet its use requirements. If the hydraulic oil pollution leads to sudden failure, the oil used in the hydraulic system must be filtered or replaced. Always check the tightness of the oil inlet pipe interface to prevent air from entering. At the same time, the air in the system should be exhausted after each oil change, and the worn parts should be repaired or replaced in time. According to statistics, under normal working conditions, imported hydraulic pumps and motors have been working for five or six years, while domestic ones have been working for two or three years. The wear and tear are quite serious and need to be repaired immediately.

E, regularly check and maintain the hydraulic oil circulating cooling system, once found fault, must immediately stop and eliminate.

/syt/