Diesel Technician: Diagnostics, Repairs & PM Expertise

County-Materials-Family-of-Companies; Town of Tomahawk (WI); On-site; USD 52,000 - 76,000; Full time

Job summary

County Materials in Tomahawk, Wisconsin is seeking a Diesel Technician with solid experience in diesel engines and heavy‑duty equipment to maintain, troubleshoot, and repair trucks and large machinery.

This role performs diagnostics, preventative maintenance, DOT inspections, and emergency repairs, reading manuals and service documents, while keeping a clean, safe work area and supporting production schedules.

Qualifications

• High School Diploma or Equivalent.
• Minimum of 2 years' experience in diesel mechanics.
• Valid driver7s license (CDL preferred).

Responsibilities

• Troubleshoot, diagnose, and repair diesel engines, trucks, and heavy‑duty equipment.
• Perform mechanical, hydraulic, and pneumatic repairs as needed.
• Complete preventative maintenance (PMs) and DOT inspections.
• Respond to emergency and unscheduled breakdowns to minimize downtime.
• Read and interpret technical manuals, schematics, and service documentation.
• Operate, maintain, and inspect shop tools and equipment.
• Follow all safety procedures, regulatory requirements, and quality standards.
• Accurately document repairs, inspections, and maintenance activities.
• Support team operations and assist with special projects or tasks.
• Use hand and power tools, material handling equipment, welders, and cutting torches.
• Maintain a clean, organized, and safe work area.

Skills

Diesel engines

Heavy‑duty equipment

Diagnostics & Troubleshooting

Welding

Reading schematics

Documentation

Safety procedures

Education

High School Diploma or Equivalent

Tools

Hand tools

Welding equipment

Cutting torches

Job description

County Materials in Tomahawk, Wisconsin is seeking a Diesel Technician with solid experience in diesel engines and heavy‑duty equipment to maintain, troubleshoot, and repair trucks and large machinery.

This role performs diagnostics, preventative maintenance, DOT inspections, and emergency repairs, reading manuals and service documents, while keeping a clean, safe work area and supporting production schedules.