Car Dumpers

Introduction to Coal Car Unloading Systems Name the three basics steps involved in receiving operations. Describe the general function of the following equipment: positioners rotary car dumpers scales dust control equipment and retarders. List some of the jobs that coal handlers generally perform during receiving operations. Rotary Car Dumpers Identify the basic parts of a rotary car dumper. Describe the function of the following dumper components: platform cradle clamping system spill truss drive system limit switches and mechanical stops. Controls Inspections and Preventive Maintenance Name the basic controls used to operate a rotary car dumper and explain the function of each control. Describe how to inspect a rotary car dumper. Describe some of the preventive maintenance jobs a coal handler should perform on a rotary car dumper. Receiving Operations Describe some of the safety procedures that coal handlers should follow during receiving operations. Describe general receiving operations at a plant that requires cars to be separated before they are unloaded. Describe general receiving operations at a plant where cars remain coupled during unloading. Positioning Systems and Retarders Describe the major components of a positioning system and explain how a positioner works. Describe the major components of a retarder and explain how a retarder works. Receiving Operations Using Positioners and Retarders Describe some of the inspections generally performed on positioners and retarders. Describe general receiving operations at a plant that uses a positioner and retarder.