Diagnose, adjust, repair, or overhaul mobile mechanical, hydraulic, and pneumatic equipment, such as cranes, bulldozers, graders, and conveyors, used in construction, logging, and surface mining.
<ul><li>Test mechanical products and equipment after repair or assembly to ensure proper performance and compliance with manufacturers' specifications.</li><li>Repair and replace damaged or worn parts.</li><li>Operate and inspect machines or heavy equipment to diagnose defects.</li><li>Read and understand operating manuals, blueprints, and technical drawings.</li><li>Dismantle and reassemble heavy equipment using hoists and hand tools.</li><li>Repair, rewire, and troubleshoot electrical systems.</li><li>Overhaul and test machines or equipment to ensure operating efficiency.</li><li>Adjust, maintain, and repair or replace subassemblies, such as transmissions and crawler heads, using hand tools, jacks, and cranes.</li><li>Diagnose faults or malfunctions to determine required repairs, using engine diagnostic equipment such as computerized test equipment and calibration devices.</li><li>Examine parts for damage or excessive wear, using micrometers and gauges.</li><li>Weld or solder broken parts and structural members, using electric or gas welders and soldering tools.</li><li>Research, order, and maintain parts inventory for services and repairs.</li><li>Schedule maintenance for industrial machines and equipment, and keep equipment service records.</li><li>Fit bearings to adjust, repair, or overhaul mobile mechanical, hydraulic, and pneumatic equipment.</li><li>Clean, lubricate, and perform other routine maintenance work on equipment and vehicles.</li><li>Assemble gear systems, and align frames and gears.</li><li>Clean parts by spraying them with grease solvent or immersing them in tanks of solvent.</li><li>Adjust and maintain industrial machinery, using control and regulating devices.</li><li>Fabricate needed parts or items from sheet metal.</li><li>Direct workers who are assembling or disassembling equipment or cleaning parts.</li></ul>