- Mine Car Mechanic
- Mine Car Repairer
- Mechanical Unit Repairer
- Test Rack Operator
- Diagnose, adjust, repair, or overhaul railroad rolling stock, mine cars, or mass transit rail cars.
- Adjust repaired or replaced units as needed to ensure proper operation.
- Disassemble units such as water pumps, control valves, and compressors so that repairs can be made.
- Inspect components such as bearings, seals, gaskets, wheels, and coupler assemblies to determine if repairs are needed.
- Perform scheduled maintenance, and clean units and components.
- Remove locomotives, car mechanical units, or other components, using pneumatic hoists and jacks, pinch bars, hand tools, and cutting torches.
- Test units for operability before and after repairs.
- Test electrical systems of cars by operating systems and using testing equipment such as ammeters.
- Service vehicles to maintain functionality.
