I have a chilling unit with compressor Frascold type V 30 84 Y and i have low oil pressure problem all oil drwon to the discharge line. I need any one to help me to solve this problem , I fill the copressor with oil up to the leve 3/4 of sight glass but all oil drwon after run compressor to the discharge line, I open the cover of the suction and delivery valves and I found a too mach oil.
Is the piston ring worn out?