Lead Field Service Mechanic – Onsite Diagnostics

Herc Rentals; Alabama; On-site; USD 41,000 - 50,000; Full time

Benefits offered by this job

Medical, Dental, and Vision Coverage

Life and disability insurance

401(k) plan with company match

Paid Time Off

Job summary

Herc Rentals seeks a Field Service Mechanic A to lead fleet maintenance and repairs at customer job sites. You will diagnose engines, electrical, hydraulic, and fuel systems, perform preventive and corrective maintenance, and mentor B/C level technicians on procedures and safety.

Operate from a service truck and ensure equipment remains on the rental ready line. The role requires a high school diploma, valid license, and ability to lift up to 50 lbs.

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 mastery of all Field Service Mechanic B and C-level tasks.
• Comprehensive knowledge of electrical, hydraulic, propane, and fuel systems.
• Proficiency with computerized diagnostic tools and fleet management systems.
• 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.
• Operate/test equipment onsite to confirm quality standards before and after repairs.
• Independently perform routine maintenance and repairs on fleet equipment and trucks.
• Diagnose engines, DC electrical, propane, hydraulic, and fuel systems onsite using diagnostic/hand tools.
• Repair using electrical schematics; inspect overvoltage protection and indicator lights.
• Replace/diagnose control modules; reprogram firmware/software via laptop/tablet tools.
• Apply computer-controlled diagnostics to resolve electrical issues without branch return.
• Diagnose lithium electrical issues, intermittent faults, and post-fire failure analysis.
• Diagnose/repair safety-critical circuits to restore equipment onsite; install aftermarket electrical components.
• Diagnose DPF/DEF system issues; troubleshoot and calibrate mechanical, electronic, and power loss issues.
• Conduct failure analysis supporting policy review and warranty eligibility.
• Analyze/test lubrication systems; replace injectors and common rail components.
• Repair/reseal hydraulic cylinders; recalibrate aerial systems; perform annual aerial inspections.
• Service emission control components, including DPF.
• Develop/service reports and repair logs; maintain fleet records.

Skills

Technical schematics

Equipment operation

Customer communication

Tool safety

Attention to detail

Documentation

Fleet software

Time management

Stakeholder communication

Teamwork

Mobility

Physical stamina

Repetitive tasks

Work environment adaptability

Education

High School Diploma or equivalent

Tools

Diagnostic tools

Fleet management software

Job description

Herc Rentals seeks a Field Service Mechanic A to lead fleet maintenance and repairs at customer job sites. You will diagnose engines, electrical, hydraulic, and fuel systems, perform preventive and corrective maintenance, and mentor B/C level technicians on procedures and safety.

Operate from a service truck and ensure equipment remains on the rental ready line. The role requires a high school diploma, valid license, and ability to lift up to 50 lbs.