2. The internal cleaning of the hydraulic system of the concrete wet spraying trolley is not thorough. Traces of dirt residue remain in the tank or components.
3. When refueling the concrete wet spraying trolley, if the refueling equipment is not clean, the oil in the hydraulic system of the concrete pump will be polluted.
Fourth, there is a problem with the added oil. There are two main problems, one is that the oil itself has been contaminated, and the other is that the oil has deteriorated after the expiration date. The deteriorated oil will corrode the inside of the hydraulic system, and the corroded metal may become free molecules suspended in the oil, thereby causing the pollution of the hydraulic system oil.
So how to take corresponding measures based on the above information to avoid various pollution and damage during the construction of concrete pump trucks?