An Approach to Improve the Productivity of Dumper by Preventive Maintenance

In the coal mining industry there are various types of Earth moving vehicles and Equipments being used for different purposes. The major material Handling equipments in an open cast mine is Dumper. The dumper carries coal from quallary to the bunker for storage and transportation. The output of any quallary is greatly influenced on the effective conveying of the coal. In this paper an open cast coal mine is selected. The working at the quallary is of continuous type and availability of dumper is critical factor considering the functional significance and the cost of the equipment. Detailed analysis needs to be carried out toward the utilization and availability of these dumpers. The company has a central workshop, which caters the maintenance needs of all the equipments. A maintenance schedule is followed by the workshop. Inspire of the preventive maintenance schedule the frequency of breakdown is substantial. Hence efforts are essential to analyze the failures and suggest remedial measures to reduce the downtime.