Service Technician

Komatsu; Tucson (AZ); On-site; USD 65,000 - 95,000; Full time

Job summary

Komatsu seeks a skilled Service Technician to support electric drive wheel loaders and drills across multiple open pit mine sites in the Southwest. You will troubleshoot, repair, and maintain heavy equipment with a strong mechanical and electrical skillset.

The role is onsite with a Monday–Saturday schedule, 10–14 hour days. Responsibilities include diagnosing electrical, hydraulic and mechanical issues, performing repairs, and conducting inspections at customer sites.

Qualifications

• 3+ years of mining or construction equipment experience.
• Strong ability to read and interpret technical schematics/man manuals.
• Efficient diagnosis, troubleshooting and repair of mechanical, hydraulic and electrical systems.
• Commitment to safety and quality standards.

Responsibilities

• Maintain, repair, service and inspect Komatsu electric wheel loaders and drills.
• Diagnose mechanical, hydraulic and electrical systems.
• Adjust/repair/replace defective components at customer sites.
• Perform field repairs at open pit mine sites.

Skills

Schematics reading

Electrical diag

Mechanical diag

Safety standards

Heavy equipment maintenance

Job description

Service Technician

We are seeking a skilled Service Technician to support electric drive wheel loaders and drills across multiple open pit mine sites in the Southwest. This role requires a strong mechanical and electrical skillset to troubleshoot, repair, and maintain heavy equipment. The position is located onsite and the schedule is Monday through Saturday, 10–14 hour days.

Key Job Responsibilities

• Maintenance, repair, service, and inspection of Komatsu Electric Wheel Loaders and Drills
• Able to diagnose mechanical, hydraulic, and electrical systems
• Adjust, repair or replace all defective equipment parts, components or systems serviced at customer sites
• Diagnose and repair electrical, hydraulic, and mechanical issues on heavy equipment
  • 24V and high‑voltage systems (up to ~600‑700 volts)
  • Hydraulic systems (leak repair, pressure testing, pump setup)
• Conduct field repairs at open pit mine sites

Qualifications & Requirements

• 3+ years of mining or construction equipment‑related experience
• Strong proficiency in reading and interpreting technical schematics and manuals
• Demonstrated ability to efficiently diagnose, troubleshoot, and repair issues in mechanical, hydraulic, and electrical systems common to mining and/or construction equipment
• Strong commitment to safety and quality standards

Preferred Qualifications

• Experience with:
  • Drills
  • Electric wheel loaders (e.g., 1150‑2350 series)
  • Equipment formerly branded as LeTourneau