Cleaning method of hydraulic system of small excavator

1. Replace the hydraulic oil and filter of small excavator regularly

Good hydraulic oil contains a variety of additives, which can prevent oil deterioration. But these additives will lose their effectiveness after a period of time. Therefore, the oil should be changed regularly to ensure the role of additives.
The filter can only absorb a limited number of dirt particles and other impurities from the oil. When replacing the hydraulic oil, clean the oil suction filter of the hydraulic oil tank to keep the system clean.
When replacing the hydraulic oil filter, please check whether there are metal particles or debris at the bottom of the filter. If there are copper or iron filings, it indicates that the hydraulic pump, hydraulic motor or valve may have been damaged or will be damaged. If there is rubber, it indicates that the seal of the hydraulic cylinder is damaged.

2. Regularly discharge the dirt in the oil tank of small excavator

It is very important to drain the water and sediment in the oil tank regularly to remove the impurities in the oil, but it is also very important to replace the hydraulic oil in the whole hydraulic system regularly. This is the only reliable way to completely remove the system impurities, oxidized hydraulic oil and other harmful impurities, and then the recommended clean hydraulic oil should be added to the hydraulic system again, Please drain the dirt from the oil storage tank of the hydraulic oil tank every 258 working hours.

3.Replace all hydraulic oil and clean the oil tank. 

If the hydraulic oil of small excavator is polluted, especially when the pump or oil cylinder and motor are damaged, all the hydraulic oil must be replaced and the oil tank must be cleaned.
The above is about how to clean the hydraulic system of small excavator. I hope it can help you!