strange noise atlas copco GA160

Questions & AnswersCategory: Air Compresser Troubleshootingstrange noise atlas copco GA160
fabricio silva borges asked 4 months ago

we have an atlas copco GA160 compressor that recently made a strange noise in the gearbox during the relief phase. when it comes into charge the noise disappears. Gearbox and electric motor bearings have already been replaced, but the problem persists. can anyone give any idea of the cause of the noise? thanks.