1. When working on stainless steel submersible pumps, do not leave the work position without authorization, and closely observe whether the control instruments and water level indicators are normal. If there is a false water level, immediate measures should be taken. All equipment should be inspected every 10-15 minutes and recorded every hour. The oil temperature bearing temperature should not exceed 50 ℃, the emulsion temperature should not exceed 60 ℃ ° C, the cooling water temperature should not exceed 40 ° C, and the motor temperature should not exceed the rated temperature rise.

2. When opening and closing the valve, stand on the side of the valve stem and slowly rotate.

3. Check whether the oil level of the high-pressure pump in the gearbox oil tank and the water level in the emulsion tank are within the specified oil level and water level.

4. If overpressure is found, immediately remove the pressure plug and cut off the main power supply. After the water level drops to normal, notify the hydraulic press to stop working. After repairing and returning to normal, you can continue working.

5. Check whether all parts of the stainless steel submersible pump, valves, solenoid valves, pipelines, etc. are intact and free from water, air, or oil leakage. Check whether the electrical zero (ground) line is firm and reliable. If the pump is stopped for more than one week, measure the main motor. Check if the insulation is good and if the contact signal with the hydraulic press is correct and reliable. Start pump sequence:

(1) Check whether the valves on the water (gas) storage tank of the water pump and the pipeline to be started, as well as the suction valve and circulation gate valve, are in the open position. Open the pump head vent valve of the high-pressure pump and the cooling water valve of the pump and lubricating oil pump;

(2) Start the lubricating oil pump and run for 1-2 minutes, with an oil pressure of 0.15-0.2MPa. After the lubricating oil indicator light shows normal, start the main motor of the high-pressure pump;

(3) After the pump head exhausts, immediately close the exhaust valve;

(4) After the high-pressure pump operates normally, turn off the power supply of the circulating valve solenoid valve, plug in the pressure power plug, and when the water level rises to level 4 or above, turn off the low water level valve solenoid switch. When the water level rises to level 7, (according to the pump room design, a "ready to work" signal can also be sent in advance), the "ready to work" signal is sent to the oil press, and the oil press starts to work.

6. Use soapy water to check if the air valve and air pipe of the water (gas) storage tank are leaking. If there is condensation and frost (water), it indicates severe air leakage and should be repaired in a timely manner.

7. Check whether the safety valve pressure gauge, electric contact pressure gauge, water level gauge, and liquid level indicator of the stainless steel submersible pump are sensitive and correct; The pressure gauge and safety valve are inspected once a year, and the safety valve is regularly vented to prevent valve failure.