Operation:
1. Check if the oil level of the retarder tank, High Pressure Pump and emulsion tank is at the specified oil level and water level.
2. Check the safety valve, pressure gauge, electric contact pressure gauge, water level gauge and liquid level indicator are sensitive and correct; the pressure gauge and safety valve are calibrated once a year; the safety valve is regularly tested for exhaust to prevent the valve core from sticking and Valve hole plugged.
3. Check all parts of the pump, valves, solenoid valves, pipelines, etc. are good, no leakage, leakage, leakage, check the electrical connection (ground) line is solid and reliable, stop the pump for more than a week, to measure the main motor Insulation is good; check the contact signal with the hydraulic press is correct and reliable.
4. Open pump sequence:
(1) Check whether the valves, suction valves, and circulation valve on the water pump, water storage (gas) tank and pipeline to be actuated are all in the open position, and open the pump head bleed valve and the lubricating oil pump cooling water valve of the high pressure pump;
(2) start the lubricant pump, run for 1 to 2 minutes, the oil pressure in the 0.15 ~ 0.2 MPa, to be normal after the lubricating oil indicator, start the main motor of the high pressure pump;
(3) After the pump head is exhausted, close the exhaust valve immediately;
(4) After the high-pressure pump is operating normally, close the electromagnet power supply of the circulation valve, insert the pressure plug, and wait until the water level rises above level 4 and close the solenoid switch of the minimum level valve. When the water level rises to 7 levels, the hydraulic press A "workable" signal was issued and the hydraulic press started working.
5. When opening and closing the valve, - to stand on the side of the stem, slowly rotate.
1. Check if the oil level of the retarder tank, High Pressure Pump and emulsion tank is at the specified oil level and water level.
2. Check the safety valve, pressure gauge, electric contact pressure gauge, water level gauge and liquid level indicator are sensitive and correct; the pressure gauge and safety valve are calibrated once a year; the safety valve is regularly tested for exhaust to prevent the valve core from sticking and Valve hole plugged.
3. Check all parts of the pump, valves, solenoid valves, pipelines, etc. are good, no leakage, leakage, leakage, check the electrical connection (ground) line is solid and reliable, stop the pump for more than a week, to measure the main motor Insulation is good; check the contact signal with the hydraulic press is correct and reliable.
4. Open pump sequence:
(1) Check whether the valves, suction valves, and circulation valve on the water pump, water storage (gas) tank and pipeline to be actuated are all in the open position, and open the pump head bleed valve and the lubricating oil pump cooling water valve of the high pressure pump;
(2) start the lubricant pump, run for 1 to 2 minutes, the oil pressure in the 0.15 ~ 0.2 MPa, to be normal after the lubricating oil indicator, start the main motor of the high pressure pump;
(3) After the pump head is exhausted, close the exhaust valve immediately;
(4) After the high-pressure pump is operating normally, close the electromagnet power supply of the circulation valve, insert the pressure plug, and wait until the water level rises above level 4 and close the solenoid switch of the minimum level valve. When the water level rises to 7 levels, the hydraulic press A "workable" signal was issued and the hydraulic press started working.
5. When opening and closing the valve, - to stand on the side of the stem, slowly rotate.
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