Field Service Mechanic B (Generators)

Job description

Field Service Mechanic B (Generators)

nFresno, CA, USA, 93725

nEmployment Status: Full-time

nPosting Start Date: 9/21/26

nIf you are currently an employee of Herc Rentals, please apply using this link: Herc Employee Career Portal (

nFounded in 1965, Herc Rentals is one of the leading equipment rental suppliers in North America with 2025 total revenues reaching approximately $4.4 billion. Herc Rentals' parent company, known as Herc Holdings Inc., listed on the New York Stock Exchange on July 1, 2016, under the symbol "HRI." Herc Rentals serves customers through approximately 607 locations and has about 10,000 employees in North America as of June 30, 2026.

nJob Purpose

nAs a Field Service Mechanic B, you are an intermediate-level technician who has developed a solid foundation of mechanical knowledge and is expanding into more complex diagnostics and repairs in the field. Field Service Mechanic B's have mastered the foundational operating procedures at the branch level and are progressing toward mastery of regional and national standards. The primary focus of a Herc Rentals Field Service Mechanic B is to utilize their growing mechanical expertise to support fleet maintenance operations at customer job sites, ensuring Herc Rentals equipment remains on the rental 'ready line'. This goal is achieved safely and professionally through an effective preventative and corrective maintenance program executed from a service truck, while mentoring Field Service Mechanic C-level technicians.

nWhat you will do...

nPreventative Maintenance (Field)

nnnMaintain PM schedules for Herc-owned fleet at active job sites.

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nnIndependently perform oil changes, filter replacements, and lubrication from the service truck.

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nnReplace oil/fuel filters, water pumps, thermostats, and radiators onsite.

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nnManage coolant levels, flush systems, and maintain hose quality.

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nnPerform DPF/DEF system maintenance at the job site.

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nnConduct visual/operational inspections of engines, belts, hoses, and major systems.

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nnInspect for oil leaks, correct fuel type, and fluid levels per OEM recommendations.

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n nIntermediate Diagnostics & Repairs (Field)

nnnDiagnose/repair cooling systems; identify electronic and mechanical problems onsite.

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nnTest engine cooling and fuel systems (lines, leaks).

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nnTroubleshoot/repair electrical systems-wiring, connectors, control units-from the service truck.

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nnReplace faulty turbos, alternators, and sensors.

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nnDiagnose pressure loss, overheating, and sluggish movement on aerial equipment.

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nnUse computerized tools to trace electrical faults, connections, switches, sensors, and safety interlocks.

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nnReplace hoses, hydraulic pumps, motors, wiring, and sensors.

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nnReplace guardrails, platforms, and outriggers; replace aerial lift leveling components.

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nnPerform annual aerial inspections; service emission control components (DPF).

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n nIntermediate Electrical Tasks (Field)

nnnInspect starter motor, solenoid, and ignition switch; check cranking amperage and abnormal noises.

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nnInspect wiring harnesses for fraying, cracks, exposed wires, or overheating; replace as needed.

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nnInspect lighting wiring/switches and cabin for moisture ingress or electrical damage.

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nnInspect/test relays and circuitry; replace faulty components.

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nnInspect/recalibrate overvoltage protection systems and indicator lights.

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nnInspect/test voltage regulators and sensors; replace if faulty.

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nnVerify firmware/software updates using truck-carried tools.

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nnRead and apply electrical schematics to support diagnostics.

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n nWork Orders, Reporting & Mentorship (Field)

nnnEnter/review work orders and order parts via fleet management system from the field.

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nnAssist shop lead with damage estimates, repairs, and documentation onsite.

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nnProduce detailed service reports and repair logs per visit.

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nnRecondition/replace heavy equipment parts; diagnose wear/tear onsite.

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nnAssist training Field Service Mechanic C techs under shop lead direction.

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nnKeep service truck and inventory clean and organized.

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nnFollow field procedures, protocols, and safety requirements; other duties as assigned.

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n nRequirements

nnnHigh School Diploma or equivalent.

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nnValid 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)

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nnOwnership of sufficient selection of hand and air/electric tools to complete most repairs and services.

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nnAbility to drive/operate multiple types of vehicles and equipment.

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nnAbility to safely lift up to 50 lbs.

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nnDemonstrated proficiency in all Field Service Mechanic C-level tasks.

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nnWorking knowledge of electrical and hydraulic systems; ability to read schematics.

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nnMust be able to work outdoors in varying weather conditions and job site environments.

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n nSkills

nnnAbility to operate and test equipment such as boom lifts, forklifts, compressors, portable and stationary generators, hydraulics, pumps, and assorted tools and equipment.

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nnSolid and proven computer skill set to enter and review work orders from the field.

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nnAbility to understand detailed technical schematics, owner manuals, and product warning labels.

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nnAbility to communicate effectively and efficiently with customers, job site supervisors, and all levels of the company.

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nnInterpersonal skills and teamwork in a field environment.

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nnAttention to detail and strong situational awareness on active job sites.

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nnSolid written and verbal communication skills.

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nnStrong understanding of time management and the ability to prioritize multiple service calls.

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nnWorks and communicates effectively with all employees of the branch and all levels of the company.

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nnAbility to work both indoors and outdoors as required

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nnAbility to sit, stand, and walk for extended periods

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nnAbility to perform repetitive tasks, including stretching, turning, twisting, and reaching overhead

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nnAbility to bend, crouch, squat, kneel, and stoop for extended periods

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n nReq #: 71670

nPay Range: $31 - $35 per hour

nPlease be advised that the actual salary offered for any position is subject to the company's sole discretion and may be influenced by various factors, including but not limited to the candidate's qualifications, experience, location, and overall fit for the role.

nHerc Rentals values its employees and provides excellent compensation and benefits packages which are not limited to the following.

nKeeping you healthy

nMedical, Dental, and Vision Coverage

nLife and disability insurance

nFlex spending and health savings accounts

nVirtual Health Visits

n24 Hour Nurse Line

nHealthy Pregnancy Program

nTobacco Cessation Program

nWeight Loss Program

nBuilding Your Financial Future

n401(k) plan with company match

nEmployee Stock Purchase Program

nLife & Work Harmony

nPaid Time Off (Holidays, Vacations, Sick Days)

nPaid parental leave.

nMilitary leave & support for those in the National Guard and Reserves

nEmployee Assistance Program (EAP)

nAdoption Assistance Reimbursement Program

nTuition Reimbursement Program

nAuto & Home Insurance Discounts

nProtecting You & Your Family

nCompany Paid Life Insurance

nSupplemental Life Insurance

nAccidental Death & Dismemberment Insurance

nCompany Paid Disability Insurance

nSupplemental Disability Insurance

nGroup Legal Plan

nCritical Illness Insurance

nAccident Insurance

nHerc does not discriminate in employment based on the basis of race, creed, color, religion, sex, age, disability, national origin, marital status, sexual orientation, citizenship status, political affiliation, parental status, military service, or other non-merit factors.

nApply now

Worksite address

fresno, CA, 93650, US

Who can apply

Review the original listing for work authorization, qualifications and employer requirements.