The maintenance of using a high-pressure gear pump includes the following parts: 1. Regularly check the oil level position, and adjust it to meet the requirements if it does not meet the regulations. When the high-pressure gear pump is running, the oil level should be at the center of the oil gauge. 2. The oil change period shall be considered based on actual usage conditions and whether it can meet performance requirements, and shall be determined by the user at their discretion. It is recommended to change the oil of a new high-pressure gear pump after about 100 hours of operation when removing clean and dry gas. After the black metal powder is no longer visible in the oil, the oil change period can be extended appropriately in the future.3. Regularly check the oil quality and replace it with new oil if it deteriorates, to ensure the normal operation of the high-pressure gear pump. 4. In general, after 2000 hours of operation, the high-pressure gear pump should be inspected for aging of the sealing components, cracking of the exhaust valve plate, and cleaning of the dirt deposited on the valve plate and exhaust valve seat. Clean all parts inside the high-pressure gear pump chamber, such as rotors, rotor blades, springs, etc. Usually cleaned with gasoline and dried. After cleaning the rubber parts, dry them with a dry cloth. When cleaning and assembling, handle with care to avoid injury. 5. Add bearing lubricating oil into the bearing body, and observe that the oil level is at the centerline of the oil gauge. The lubricating oil should be replaced or replenished in a timely manner. 6. Check if there is any looseness in the high-pressure gear pump pipeline and joint. Rotate the high-pressure gear pump by hand to see if it is flexible. 7. After reassembly, a trial run should be conducted, generally requiring 2 hours of idle operation and a second oil change. Due to the presence of a certain amount of volatile substances in the high-pressure gear pump during cleaning, it should be put back into normal operation after normal operation. When the high-pressure gear pump needs to be stopped, first close the gate valve and pressure gauge, and then stop the motor. During the operation of the high-pressure gear pump, the bearing temperature should not exceed 35C above the ambient temperature, and higher temperatures should not exceed 80 degrees. Within the first month of operation, the lubricating oil of the high-pressure gear pump should be replaced after 100 hours. Afterwards, every 500 hours, the oil should be replaced. The high-pressure gear pump can be driven by belt drive or gear reducer. This pump has the characteristics of low speed, high efficiency, small size, large flow rate, low power consumption, strong self-priming ability, no need for oil injection, and easy use. It can be widely used for transporting petroleum and petroleum products (gasoline replaceable copper pump blades) and for transporting various oils and liquids in factories. Such as crude oil, paint, lubricants, glass glue, fatty acids, toothpaste, and light alkaline (soap processing) liquids; Food processing can transport various liquids, such as soybean milk, yeast, syrup, etc. Loading and unloading various oil tankers and oil tankers are fast, efficient, easy to use, and can work in both forward and reverse directions.