Hi guys, I am a newby here and wish to throw out a question. I have had two 250kw Daikin compressors fail, both with damage to the star gates. The rotating sections that drive onto the screw both have scouring on the flat sides. Both had seizures after a short run time, one on low load and one on full load. How do they achieve capacity control and does anyone have some pictures of the internals. Are these normally a robust machine or do they have inherant problems, I thank you in advance for any information I can get, Denis.