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The article proposes a method of diagnostics of the actual technical condition of the motor-wheel gear of pit dump trucks. It allows monitoring of the wear of the bearing assemblies, and also to control the parameters of units upon achieving the maximum permissible meanings. Application of this method allows to prevent failure of the motor wheel gear of a dump truck and to carry out scheduled preventive measures on replacement of the worn bearing. Through this method, the motor-wheel gear unit will not operate with the gaps exceeding the allowable limits. It will prevent its failure and will contribute to the following qualitative improvements: operational control of the state of a quarry dump truck; constant monitoring of the condition of the gear unit during its operation; longer intervals between scheduled maintenance and repair; reducing unplanned downtime of the equipment; a decrease of the current repair costs; protection of dump trucks from accidents (in case of sudden failure of motorwheel gear); savings on the purchase of new parts and repair work as a result of preventive measures.

The Diagnostics of Motor-Wheel Gears of Quarry Dump Trucks Based on Bearing Wear Monitoring