Field Service Mechanic II: On-Site Diagnostics

Herc Rentals; Apache Junction (AZ); On-site; USD 41,000 - 47,000; Full time

Benefits offered by this job

Medical, Dental, and Vision Coverage

401(k) with company match

Paid Time Off

Job summary

Herc Rentals is seeking a Field Service Mechanic B in Arizona to maintain and repair rental equipment at customer job sites. You will perform preventative maintenance, diagnose mechanical and electrical issues, and service equipment from a service truck while ensuring on-site safety and readiness.

You will mentor Field Service Mechanic C-level technicians, document work orders, and contribute to reliable fleet performance.

Qualifications

• High School Diploma or equivalent.
• Valid driver's license with a clean driving record; ability to operate a fully equipped service truck and be able to obtain a FMCSA regulated Driver Qualification File (DQF)
• Ownership of sufficient selection of hand and air/electric tools to complete most repairs and services.
• Ability to drive/operate multiple types of vehicles and equipment.
• Ability to safely lift up to 50 lbs.
• Demonstrated proficiency in all Field Service Mechanic C-level tasks.
• Working knowledge of electrical and hydraulic systems; read schematics.
• Must be able to work outdoors in varying weather conditions and job site environments.

Responsibilities

• Maintain PM schedules for Herc-owned fleet at active job sites.
• Independently perform oil changes, filter replacements, and lubrication from the service truck.
• Replace oil/fuel filters, water pumps, thermostats, and radiators onsite.
• Manage coolant levels, flush systems, and maintain hose quality.
• Perform DPF/DEF system maintenance at the job site.
• Conduct visual/operational inspections of engines, belts, hoses, and major systems.
• Inspect for oil leaks, correct fuel type, and fluid levels per OEM recommendations.
• Diagnose/repair cooling systems; identify electronic and mechanical problems onsite.
• Test engine cooling and fuel systems (lines, leaks).
• Troubleshoot/repair electrical systems—wiring, connectors, control units—from the service truck.
• Replace faulty turbos, alternators, and sensors.
• Diagnose pressure loss, overheating, and sluggish movement on aerial equipment.
• Use computerized tools to trace electrical faults, connections, switches, sensors, and safety interlocks.
• Replace hoses, hydraulic pumps, motors, wiring, and sensors.
• Replace guardrails, platforms, and outriggers; replace aerial lift leveling components.
• Perform annual aerial inspections; service emission control components (DPF).
• Enter/review work orders and order parts via fleet management system from the field.
• Assist shop lead with damage estimates, repairs, and documentation onsite.
• Produce detailed service reports and repair logs per visit.
• Recondition/replace heavy equipment parts; diagnose wear/tear onsite.
• Assist training Field Service Mechanic C techs under shop lead direction.
• Keep service truck and inventory clean and organized.
• Follow field procedures, protocols, and safety requirements; other duties as assigned.

Skills

Equipment operation

Diagnostics

Electrical systems

Problem solving

Safety consciousness

Communication

Education

High School Diploma or equivalent

Tools

Boom lifts

Forklifts

Compressors

Generators

Hydraulics

Electrical test tools

Job description

Herc Rentals is seeking a Field Service Mechanic B in Arizona to maintain and repair rental equipment at customer job sites. You will perform preventative maintenance, diagnose mechanical and electrical issues, and service equipment from a service truck while ensuring on-site safety and readiness.

You will mentor Field Service Mechanic C-level technicians, document work orders, and contribute to reliable fleet performance.