This publication is a brief abstract of an engineering work that addresses the problem of locating oil leaks in the lubrication circuit of a semi-autogenic mill called CASCAD MILL CINQ (CM5).
A solution is proposed using a fundamental law of fluid mechanics that is «the law of flow conservation». Thanks to the latter, the model of an automatic and computer system was designed, also taking into account the instrumentation and other aspects of the solution related to the problem.