The state of vibration diagnostics of the mobile machines tooth gears, peculiarities of hardware and software of manufacturers’ products, approaches and methods for diagnostics of mobile machines transmission systems are considered. The systems and methods of mobile machines gear diagnostics in operation are analyzed and classified in detail. Special features of the tooth gears functioning, which restrict use of standard vibroacoustic tools for their diagnostics, are separated. On-board automated system aimed for the vibrodiagnostics of motor-in-wheel reducers for dump trucks BelAZ is described. The perspective directions of vibrodiagnostics development in relation to the transmission units of mobile machines are formulated.
