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1. Turn on the current to make the air compressor run under no-load condition.
2. After the no-load operation is normal, gradually open the unloading valve, close the oil-water blow-off valve of each stage cooler, and make the air compressor run under load.
3. Operation: 1 Lubricating oil pressure is 1~5kg/cm, not less than 1kg/cm.
2 The exhaust pressure should not exceed 8kg/cm, otherwise the pressure regulator should be checked.
3 Check that the oil in the oil pool and oiler should be within the scale range, and the oil spill should not exceed the specified range.
4. The cooling water should be unblocked, uniform, no intermittent, no bubbles, and the water temperature should not exceed 40 °C.
5. The exhaust gas temperature does not exceed 160 ° C, and the temperature after water cooling does not exceed 40 ° C.
6. Check that the current, voltage and motor temperature are normal.
7. Always check whether the parts of the machine are running normally.
8. Always check if the suction valve cover is hot and the sound of the valve is normal.
9. Pay attention to the reliability of various protective equipment.