✦ Luna Orbit — Engineering (Non-Software)

Diesel Diagnostic Mechanic I

at Freeport-McMoRan

📍 Bagdad, AZ, US, 86321 Unknown 💰 $28 – $38 USD / year Posted April 16, 2026
Salary $28 – $38 USD / year
Type Full-Time
Experience entry
Exp. Years Two (2) years
Education Not specified (Preferred: High School Diploma or GED)
Category Engineering (Non-Software)

Perform diagnostic, maintenance, and repair work on heavy equipment used in mining operations. The role includes mechanical preventative maintenance, equipment troubleshooting, work order and inspection responsibilities, welding, and occasional fill-in supervisory duties.

  • Diagnose, maintain, and repair heavy equipment
  • Perform mechanical and lubrication preventative maintenance
  • Troubleshoot machine systems and prioritize repairs
  • Maintain work orders and perform work area inspections
  • Perform welding and train/mentor employees

This is a heavy equipment mechanical role covering diesel diagnostic and repair for haul trucks, water trucks, dozers, loaders, and graders. Core technical scope includes drivetrains and power components (transmissions, engines, differentials), hydraulics and lubrication preventative maintenance, plus welding (Carbon arc, Plasma, Mig, Tig, Stick) and blueprint-based troubleshooting.

The ideal candidate is an entry-level Diesel Diagnostic Mechanic I with 2+ years of mechanical/maintenance craft experience in industrial mechanical repair and maintenance. They can diagnose and repair heavy equipment systems (engines, transmissions, hydraulics, pumps, differentials), perform preventative maintenance, complete work orders and inspections, and perform welding using Carbon arc, Plasma, Mig, Tig, and Stick.

Two (2) years' experience in mechanical/maintenance crafts (including welderboilermakermachinist or facility maintenance/construction) or a combination of education and experience in industrial mechanical repair and maintenance.Must have completed academic and practical competencies required (this includes Line of Progression requirements for internal employees where LOP Exists) and have experience demonstrating the required mechanical aptitude.Ability to understand and apply verbal and written work and safety-related instructions and procedures in EnglishAbility to communicate in English with respect to job assignmentsjob proceduresand applicable safety standardsAbility to prioritize repairs and possess excellent decision-making skillsAbility to troubleshoot machine systemsAbility to read and use blueprints
High School Diploma or GED
work ordersblueprints
diagnosticmaintenance and repair of heavy equipmenttransmissionsenginesbrakesdifferentialspumpsmotorstorque convertorsfinal driveshydraulic systemspreventative maintenancework orderswork area inspectionsoverhead cranesforkliftsboom truckswelding (Carbon arcPlasmaMigTigStick)blueprint readingtroubleshoot machine systemsmechanical aptitude
diagnosticmaintenance and repair of heavy equipmenthaul truckswater trucksrubber tire and track dozersfront-end loadersmotor graderstransmissionsenginesbrakesdifferentialspumpsmotorstorque convertorsfinal driveshydraulic systemspower train and enginesmechanical and lubrication preventative maintenancework order maintenancework area inspectionsoverhead cranesforkliftsboom trucksweldingCarbon arcPlasmaMigTigStickblueprint readingtroubleshoot machine systemsmechanical aptitude
prioritize repairsexcellent decision-making skillsability to communicate in Englishability to work and effectively communicate with otherstrain and mentor other employeesserve as a Fill-in Supervisor as required
Industry Mining
Job Function Diagnose and repair heavy equipment to maintain operational availability.
Role Subtype Mechanical Engineer
Diesel Diagnostic Mechanic IDiagnostic Mechanic Imechanical/maintenance craftsindustrial mechanical repair and maintenancediagnosticmaintenance and repairheavy equipmenthaul truckswater trucksrubber tire and track dozersfront-end loadersmotor graderstransmissionsenginesbrakesdifferentialspumpsmotorstorque convertorsfinal driveshydraulicpreventative maintenancework orderswork area inspectionsoverhead cranesforkliftsboom trucksweldingCarbon arcPlasmaMigTigStickblueprintsLine of Progression requirementsHEM Diagnostic Mechanic Itroubleshoot machine systems

Two (2) years' experience in mechanical/maintenance crafts (or combination of education and experience), Must have completed academic and practical competencies required (Line of Progression requirements for internal employees where LOP Exists), Must be able to read and use blueprints

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