First, the preparation work before starting:
1. Check whether the parts of the air compressor are in good condition, and whether the protection devices, instruments, valves, pipes and joints are damaged or loose.
2. Slightly open the drain valve at the bottom of the oil and gas tank, discharge the condensed water and dirt accumulated in the lower part of the coolant, and close the oil when it sees the oil, so as to prevent the coolant from emulsification and deterioration.
3. Check if the oil level of the oil and gas tank is between the two scale lines of the oil level gauge. If it is insufficient, it should be added. Note that there is no pressure in the system before refueling (the oil level is subject to observation after 10 minutes of shutdown, and the oil level is slightly lower during operation than when the machine is stopped).
4. When the new machine is turned on for the first time or is turned off for a long time, the air filter cover should be removed first, and about 0.5 liter of coolant should be added from the air inlet to prevent the oil from burning out during the start time.
5. Verify that there is no pressure in the system.
6. Open the exhaust valve.
