What are the precautions for replacing hydraulic oil in a hydraulic press?

Hydraulic oil plays a role in energy transfer, system lubrication, anti-corrosion, anti-rust, and cooling in the hydraulic system. According to statistics, about 90% of the failures of the hydraulic system of a hydraulic machine are caused by system pollution. Therefore, in order to avoid the failure of the hydraulic system, we must replace the hydraulic oil in time. The hydraulic oil is very important for the hydraulic machine, although the hydraulic oil It‘s not a part of the hydraulic machine‘s body, but we can see its status from the name. Therefore, treat the hydraulic oil like an important part of the hydraulic machine. It must be replaced and checked regularly. What aspects should be paid attention to in the process of replacing hydraulic oil?

Hydraulic oil will gradually deteriorate due to mechanical, physical and chemical effects. When the quality of the working medium drops to a level that does not meet the index requirements, it must be replaced with a new one in time.

The hydraulic press will cause the loss or deterioration of the hydraulic oil during the working process. Once hydraulic oil is produced, it will face the threat of deterioration. During long-term storage, the particulate contaminants in the oil have a tendency to agglomerate into agglomerates. During transportation, due to the impact of vibration, agglomeration will occur in the tiny particles. After entering the hydraulic system to work, the fission speed will be greatly accelerated. Taking mineral oil hydraulic oil as an example, more than 96% of the components are carbon and hydrogen compounds—hydrocarbons, and the rest are sulfur, nitrogen, and ash. Various additives such as anti-oxidation, anti-wear, anti-rust, defoaming, pour point depressing, etc. are also added as needed. When in a hydraulic system, it is also affected by external factors such as air, moisture, impurities, heat, light, and mechanical agitation. At the same time, internal factors such as the chemical composition of the hydraulic oil and the nature of additives can also cause various physical changes and Chemical changes cause hydraulic oil to gradually age and deteriorate. Therefore, it is necessary to check the hydraulic oil regularly when it cannot be used or can no longer meet the working needs of the hydraulic machine. If it deteriorates, it must be replaced with a new hydraulic oil, otherwise it will not affect the hydraulic machine.