Public safety operation a high-pressure pump. Check the gear oil tank, high pressure oil pump and water emulsion is in the box provided on the oil level and water level.
2. Check the safety valve, pressure gauge, electric contact pressure gauge, water level gauge, liquid level indicator is sensitive, correct; pressure gauge, check valve once a year, the exhaust valve for regular testing, to prevent adhesion and spool valve hole congestion.
3. Check all parts of the pump, the valves, solenoid valves, pipes, etc. is good, without air and water leakage, oil spills, check the electrical connections to zero (ground) line is solid and reliable, the pump stops for more than a week, to measure the main electrical insulation is good; check the link with the hydraulic press is correct and reliable signals. 4. Pump sequence:
(1) Check to start the pumps, water storage (gas) tanks and piping valves, water valves, circulation valves, whether all in the open position, open the pressure release valve and pump oil pump head cooling water pump valve;
(2) start the oil pump, run 1 to 2 minutes, 0.15 to 0.2 MPa oil pressure until the oil light is normal to start the main high pressure pump motor;
(3) The air pump head to be drained immediately after the exhaust valve closed;
(4) high-pressure pump is operating normally, the closed loop valve solenoid power supply, plug the power cord to suppress, the water level rises above level 4, close the valve solenoid switches the lowest surface, the water level to rise to 7 pm (according to pumping station design can also be issued in advance "can work" signal) issued a press water "can work" signal, hydraulic press to work.
5. Open and close the valve - the valve stem to stand side, slow rotation.
6. Shall not leave work at work to closely monitor the water level control instruments and indicators are normal, such as a false water level, should take immediate measures, and every 10 to 15 minutes to go over all the equipment touring, recording one hour operation, oil temperature, bearing temperature must not exceed 50 ℃, emulsion temperature not exceeding 60 ℃, the cooling water temperature should not exceed 40 ℃, motor temperature shall not exceed the rated temperature rise.
7. Found that excessive pressure, immediately disconnect the plug to suppress, and cut off the mains, the water level dropped to normal, notify the hydraulic machine to stop working. To be back to normal after repairs to continue to work.
8. Check the water with soap and water (gas) tanks, valves, pipe leaks, condensation, if any frost (water) conditions, indicating a serious leak, should be promptly repaired. To thaw, disable fire.
9. Found in the following cases, pressing the "emergency stop" button ammonium, immediately stop and the related need to be closed off valves, hydraulic press to issue "emergency stop" signal.
(1) In case of overpressure, over temperature, the use of measures to cut down the time;
(2) has an unusual noise, vibration time;
(3) pressure gauge, electric contact pressure gauge, liquid level indicator shows incorrect or failure;
(4) can not be stopped suddenly when a severe water leakage;
(5) failure of the solenoid valve control does not work.
10. Stop the pump in order:
(1) received a hydraulic press "stop requested" signal immediately after the water presses back "to stop" signal;
(2) to supplement water tank water level to 7 above;
(3) Unplug the suppression plug, cut off the minimum liquid level valve solenoid power supply;
(4) cut off the pump power, are not allowed to stop the pump with a load;
(5) high-pressure pump to stop running, cut off the oil pump power, turn off the oil cooling water valve.
11. When the water (gas) tank inflatable, they should stop the operation of high-pressure pump, inflatable shall be guided by "high-pressure air compressor safety operation." 12. No pressure on the equipment, containers, pipes, valves, etc. percussion. In the demolition, repair, adjustment, and must cut off the power before relief work.

Hydraulic Seals Co., Ltd. Tianjin Jin Haode

Manager's Office :022 -60,885,591

Mobile: 13752568076

Engineer :022 -27,342,619

Sales :022 -60865091, 60885562,60885563

Fax: 022-60885573

Website: www.hezecom.cn

Address: Huanghe Road, Nankai District, Tianjin Hongqi Road junction and the banks of Xinyuan 3-1-802 Rainbow Room.