Precautions in safe operation of high pressure oil pump

1. Oil pumps and jacks should use specified oil grade working oil, generally No. 10 or No. 20 mechanical oil, and other hydraulic oils with similar properties can also be used, such as transformer oil. The oil poured into the oil tank must be filtered. It should be filtered once a month when it is used frequently, and the oil tank should be cleaned regularly. Generally, the oil level in the oil tank should be maintained at about 85%, and it should be replenished in time if it is insufficient. The oil added should be the same as the oil in the original pump. The oil temperature in the fuel tank should generally be 10-40°C, and it should not be used at negative temperatures.

2. The tubing should not be bent under working pressure. The oil tank connected to the oil pump and the jack should be kept clean and blocked with screws when not in use to prevent sediment from entering. The exposed oil nozzles of the oil pump and jack should be sealed with nuts to prevent dust and debris from entering the machine. After daily use, the oil pump should be wiped clean to remove the oil dirt on the oil filtering copper wire cloth.

3. The oil pump should not work under overload. The pressure of the safety valve must be adjusted according to the rated oil pressure of the equipment. Arbitrary adjustment is strictly prohibited.

4. Grounding the power supply, the case must be grounded, and the test run can only be done after checking the insulation of the line.

5. Before running the high-pressure oil pump, you should loosen the regulating valves of each oil circuit, and then start the oil pump. After the no-load operation is normal, then close the oil return valve, gradually screw the oil inlet valve stem, increase the load, and pay attention to the pressure. Whether the table pointer is normal.

6. When the oil pump stops working, the oil return valve should be loosened slowly, and the oil pipe joint nut of the jack can only be removed after the pressure gauge slowly returns to zero. It is strictly forbidden to disassemble and replace oil pipes or pressure gauges under load.

7. For the oil pump with double-acting jack, it is advisable to use a double-connected oil pump with two simultaneous oil delivery.

8. The oil-resistant rubber hose must withstand high pressure, and the working pressure must not be higher than the rated oil pressure of the oil pump or the maximum actual working oil pressure. The length of the tubing should not be less than 2.5m. When one oil pump drives two jacks, the specifications of the oil pipes should be consistent.