Diagnose, adjust, repair, or overhaul railroad rolling stock, mine cars, or mass transit rail cars.
<ul><li>Record conditions of cars, and repair and maintenance work performed or to be performed.</li><li>Inspect components such as bearings, seals, gaskets, wheels, and coupler assemblies to determine if repairs are needed.</li><li>Repair or replace defective or worn parts such as bearings, pistons, and gears, using hand tools, torque wrenches, power tools, and welding equipment.</li><li>Inspect the interior and exterior of rail cars coming into rail yards to identify defects and to determine the extent of wear and damage.</li><li>Remove locomotives, car mechanical units, or other components, using pneumatic hoists and jacks, pinch bars, hand tools, and cutting torches.</li><li>Test units for operability before and after repairs.</li><li>Adjust repaired or replaced units as needed to ensure proper operation.</li><li>Repair, fabricate, and install steel or wood fittings, using blueprints, shop sketches, and instruction manuals.</li><li>Perform scheduled maintenance, and clean units and components.</li><li>Examine car roofs for wear and damage, and repair defective sections, using roofing material, cement, nails, and waterproof paint.</li><li>Paint car exteriors, interiors, and fixtures.</li></ul>