Senior Electrical Technician

Key Duties and Responsibilities
Electrical Diagnostics & Troubleshooting

• Diagnose and repair electrical and electronic system faults on Caterpillar mining equipment.
• Troubleshoot and resolve failures involving:
  • Engine ECM systems
  • Transmission control systems
  • Powertrain electrical systems
  • Machine Monitoring Systems (VIMS)
  • Product Link and communication systems
  • Sensors and electronic controllers
  • Lighting and auxiliary electrical systems
  • CAN Bus communication networks
  • Charging and starting systems
• Utilize Caterpillar Electronic Technician (CAT ET) and Caterpillar SIS to diagnose faults and analyze machine performance.
• Analyze fault codes and identify root causes of equipment failures.
• Conduct system verification and testing following repairs.

Electrical Maintenance Execution

• Execute preventive, predictive, corrective, and emergency electrical maintenance activities.
• Perform:
  • Circuit inspection and testing
  • Wiring harness inspection and repair
  • Insulation resistance testing
  • Battery and charging system testing
  • Electrical component replacement
  • Controller programming and configuration
  • Software updates where applicable
• Ensure maintenance activities are completed according to Caterpillar OEM standards and maintenance schedules.
• Support major shutdowns, rebuilds, and component replacement programs.

Testing, Calibration & Technical Analysis

• Operate and interpret results from:
  • Caterpillar Electronic Technician (CAT ET)
  • Caterpillar SIS
  • Digital multimeters
  • Oscilloscopes
  • Insulation resistance testers
  • Battery analyzers
  • Electrical testing equipment
• Conduct electrical testing and machine condition analysis.
• Perform calibration, system verification, and commissioning activities.
• Analyze electrical performance trends and identify potential reliability issues.

Component Repair & Equipment Recovery

• Inspect, repair, and test:
  • Wiring harnesses
  • Electrical panels
  • Sensors
  • Relays
  • Switches
  • Connectors
  • Controllers and ECMs
  • Charging and starting systems
• Support equipment recovery and emergency breakdown response activities.
• Ensure repairs meet Caterpillar OEM specifications and operational requirements.

Safety, Compliance & Documentation

• Ensure strict compliance with company HSE requirements and mining safety standards.
• Follow and enforce:
  • LOTO (Lockout/Tagout)
  • Electrical isolation procedures
  • Permit-to-Work systems
  • Hazard identification and risk assessment procedures
  • High-voltage electrical safety requirements
• Complete maintenance work orders and technical service reports.
• Maintain accurate equipment history records and maintenance documentation.

Technical Support & Team Development

• Provide technical guidance and mentoring to Electrical Technicians and Apprentices.
• Assist in developing electrical maintenance procedures and standards.
• Support technical training and knowledge transfer initiatives.
• Promote teamwork, accountability, and continuous improvement.

Continuous Improvement & Reliability Support

• Participate in Root Cause Failure Analysis (RCFA) for recurring equipment failures.
• Recommend corrective actions to improve equipment reliability and availability.
• Support initiatives aimed at reducing downtime and maintenance costs.
• Contribute to fleet performance improvement and maintenance optimization programs.
  

Qualification & ExperienceEducation

• HND, Bachelor’s Degree, or equivalent qualification in:
  • Electrical Engineering; or
  • Electrical & Electronic Engineering.
• Additional technical training in Caterpillar electrical systems, heavy equipment electrical maintenance, mining equipment maintenance, or industrial electrical systems will be an advantage.
  

Experience

• Minimum of 3–5 years’ proven experience in electrical maintenance, diagnostics, troubleshooting, and repair of Caterpillar mining equipment.
• Experience working on Caterpillar haul trucks, excavators, dozers, wheel loaders, graders, and support equipment is highly preferred.
• Previous experience within open-pit mining operations is preferred.
• Demonstrated ability to independently diagnose and resolve complex electrical and electronic faults.

Technical Competencies

• Strong ability to read and interpret:
  • Electrical schematics
  • Circuit diagrams
  • Wiring diagrams
  • Caterpillar technical manuals
  • Service Information System (SIS) documentation
• Strong working knowledge of:
  • CAT ET diagnostics
  • Caterpillar machine electronic systems
  • CAN Bus communication systems
  • Engine and transmission control systems
  • VIMS and machine monitoring systems
  • Electrical testing and calibration
  • Preventive and corrective maintenance practices
  • Electrical safety procedures
• Proficient in using:
  • CAT ET
  • Caterpillar SIS
  • Digital multimeters
  • Oscilloscopes
  • Insulation resistance testers
  • Electrical testing equipment
• Ability to independently troubleshoot and resolve complex Caterpillar electrical failures.
  

Other Requirements

• Valid Ghanaian Driver’s License.
• Good computer literacy and ability to use maintenance management systems.
• Strong troubleshooting and analytical skills.
• Good communication and teamwork skills.
• Ability to work effectively under pressure within a mining operational environment.
  

Key Performance Indicators (KPIs)

• Equipment Availability
• Equipment Reliability
• Mean Time Between Failures (MTBF)
• Mean Time to Repair (MTTR)
• PM Compliance
• Breakdown Reduction
• First-Time Fix Rate
• Safety Compliance
• Maintenance Quality
• Work Order Completion Rate