open
1. The selector switch moves to the manual position [5].
2. Open the discharge stop valve of the compressor. 3. The slide valve pointer is at the "0" position, that is, the 10% load position.
4. Press the electric heating button, the heating lamp will be on, and when the oil temperature rises to 40 ℃, press the heating stop button.
5. Press the start button of the water pump to supply water to the oil cooler.
6. Press the oil pump button to start the oil pump, and at the same time, the oil return solenoid valve C automatically opens.
7. After 5 seconds to 10 seconds, the pressure difference between oil pressure and exhaust pressure can reach 0.4~0.6Mpa
Start button, compressor starts, bypass solenoid valve A automatically opens, and return solenoid valve C automatically opens
Dynamic closing.
8. Observe the suction pressure gauge and gradually open the suction stop valve.
When the compressor comes into operation, valve A will close automatically. Adjust the oil pressure regulating valve to make the oil pressure (oil injection
The difference between pressure and exhaust pressure is 0.15 ～ 0.3Mpa
9. After the operating pressure and temperature difference of the compressor are normal, check the sealing of all moving parts, temperature measurement and pressure measuring points
situation.
Shutdown
1. Turn the energy regulating handle to the load shedding position to make the slide valve back to "0".
2. Press the main engine stop button to stop the main engine.
3. Close the suction valve.
4. Stop the oil pump.
5. Stop the water pump.
