What factors should be paid attention to when maintaining the hydraulic oil pump of a single-column hydraulic press?

1. The oil pump uses No. 20 engine oil.
2. The oil storage capacity must be within the range above the oil window.
3. Every time you refuel or change the oil, you must filter it with an oil filter net of 80 mesh or above, and clean the fuel tank when changing. The oil change interval is six months.
4. The working oil temperature is 10 degrees Celsius to 50 degrees Celsius.
5. Before starting the electric pump, open the bleed nut and turn the switch to the unloading position.
6. If the motor temperature is too high during use, stop using it. Allow to cool before use.
7. The hydraulic oil pump has been adjusted before leaving the factory. It should not be adjusted at will. When it needs to be readjusted, it must be done with the help of a pressure gauge.
8. The high-pressure oil pipes leave the factory and pass the 105MPA test. However, since the hose ages easily, users need to check it frequently, usually for six months, and for three months if the vortex flowmeter is used frequently. During the inspection, the pressure is tested at 87.5MPA. If there is damage, bulges, or leakage, it cannot be used. .
9. Bearings are generally cleaned once every six months, and grease needs to be added during assembly.