Heavy Diesel Mechanic

A heavy diesel mechanic inspects, diagnoses, maintains, and repairs large diesel-powered vehicles and industrial machinerysuch as semi-trucks, construction equipment, bulldozers, cranes, and farm tractors.

Core Responsibilities

• Diagnostics & Troubleshooting: Use computerized testing software and hand tools to find mechanical, electrical, and hydraulic faults.

• Repairs & Overhauls: Disassemble, repair, or replace major components like engines, transmissions, brakes, differentials, and fuel systems.

• Preventative Maintenance: Conduct routine service checks, including oil changes, filter replacements, fluid level checks, and safety inspections.

• Welding & Fabrication: Perform basic metal repairs, cutting, or fabrication on heavy frames and attachments when needed.

• Documentation & Compliance: Maintain service logs, parts inventories, and repair notes in compliance with safety and environmental regulations.

Key Requirements & Qualifications

• Education & Training: High school diploma or GED; completion of a vocational training or diesel technology program is preferred.

• Experience: Typically 2 to 5+ years of hands-on experience working with heavy equipment or commercial diesel fleets.

• Certifications: ASE (Automotive Service Excellence) diesel or heavy equipment certifications and a valid CDL (Commercial Driver's License) are strongly preferred by most employers.

• Physical Stamina: Ability to lift heavy parts (frequently 50 to 100+ lbs), bend, kneel, and work in adverse weather or shop conditions.

• Technical Skills: Deep knowledge of hydraulics, pneumatics, electrical systems, and diagnostic computers.