Diesel Mechanic: Heavy-Duty Repair & Diagnostics

County-Materials-Family-of-Companies; Thompson Township (OH); On-site; USD 48,000 - 65,000; Full time

Job summary

County Materials in Thompson, Ohio is seeking a Mechanical Technician with strong experience in diesel engines and heavy-duty equipment to maintain, troubleshoot, and repair fleet assets. The role supports safe, reliable, and DOT-compliant operation and requires reading manuals and performing PMs.

Responsibilities include diagnosing diesel engines and heavy equipment, performing mechanical, hydraulic, and pneumatic repairs, completing DOT inspections, and documenting repairs.

Qualifications

• High School Diploma or Equivalent.
• Minimum of 2 years’ experience in diesel mechanics.
• Valid driver’s license required; CDL preferred.

Responsibilities

• Troubleshoot, diagnose, and repair diesel engines, trucks, and heavy-duty equipment.
• Complete preventative maintenance (PMs) and DOT inspections.
• Read and interpret manuals, schematics, and service documentation.
• Maintain a clean, organized, and safe work area.
• Document repairs and maintenance activities.
• Support team operations and special projects.

Skills

Diesel engines

Mechanical systems

Diagnostics

Troubleshooting

Documentation

Welding

Safety procedures

Education

High School Diploma or Equivalent

Tools

Welding equipment

Cutting torches

Hand tools

Hydraulic tools

Job description

County Materials in Thompson, Ohio is seeking a Mechanical Technician with strong experience in diesel engines and heavy-duty equipment to maintain, troubleshoot, and repair fleet assets. The role supports safe, reliable, and DOT-compliant operation and requires reading manuals and performing PMs.

Responsibilities include diagnosing diesel engines and heavy equipment, performing mechanical, hydraulic, and pneumatic repairs, completing DOT inspections, and documenting repairs.