First, the first is insufficient lubricant
1 Long-term decommissioning (including transportation), Ingersoll Rand air compressor maintenance machine head internal fuel shortage, resulting in an instant lack of oil, resulting in stuck, so long-term equipment should first add enough oil to the machine head, Re-start
2 The running machine is insufficiently supplied with oil, including the replacement or addition of the lubricating oil. When the air compressor is maintained, the oil circuit is blocked and leaked, resulting in the oil shortage of the machine head;
3 If the oil level is too low, the bearing at the 2nd end of the screw rotor loses lubrication during operation, causing serious wear of the bearing and causing friction between the yin and yang screws.