ER30 - Field Service Technician


  • Perform planned and corrective maintenance on industrial air compressors, blowers, and vacuum/pump systems at various customer sites.
  • Review work order and related manuals, blueprints and schematic diagrams to determine tasks to be performed and tools, equipment and parts needed for service assignment.


  • Repair industrial machinery; such as, air compressors (5-500HP), positive displacement pumps, liquid ring pumps, refrigerated dryers, desiccant dryers, and vacuum systems.
  • On field service calls, discuss assignment with customer’s representative and inspect installation site to verify that electrical supply wires, conduit, switches and circuit breakers are installed according to specifications.
  • Read/follow sketches, schematics, blueprints, manufacturer’s specifications and maintenance manuals to determine troubleshooting procedure.
  • Troubleshoot, diagnose and perform repairs using system troubleshooting methodology and diagnostic tools.
  • Interpret readings on gages, indicators and dials.
  • Visually inspect and listen to machines and equipment to locate causes of malfunctions.
  • Dismantle machines and equipment to gain access to problem area, using hand tools and power tools.   
  •  Inspect and measure parts to detect wear, misalignment, or other problems.
  •  Realign and adjusts components 
  •  Apply knowledge of electrical circuits, mechanics, and pneumatics.
  •  Verify that electrical power is reaching the compressed air equipment and that voltage is as specified, using testing instruments. 
  •  Test electrical components; such as, wiring, switches and relays, using test instruments, and replace faulty components.
  •  Locate damaged air pipes on machine; may measure, cut threads or install pipe.
  •  Repair broken parts, using brazing, soldering & welding equipment, and hand tools.
  • Start machine and equipment to test operation following repair.
  •  May train customer’s staff in operation of compressed air machinery. 

Shop or Vehicle Clean-up and/or inventory; administrative duties (5%) 

  • Maintain company vehicle 
  • Organize and manage truck’s stock parts and tools
  • Complete time cards, work orders & paperwork legibly and in a timely manner


  • Education: High School Diploma or GED  
  • Specialized training:  mechanics, refrigeration (highly desired), electrical circuitry a plus
  • Previous Experience: Mechanical, 3 phase electrical, refrigeration a plus  


Exert force of 50-100 lbs. occasionally and 25-50 lbs. frequently, 10-20 lbs. constantly. 


  • Electrical controls experience helpful
  • 1-3 years repair or maintenance experience
  • Apply system troubleshooting skills effectively
  • Ability to recognize common mechanical and electrical components/read schematics 
  • Effective customer relations skills
  • Must have a valid driver license and insurable driving record 
  • Some overtime work and occasional overnight travel 

Why Kelly®?

Kelly puts you in charge of your career, with access to cutting edge projects and technologies in industry leading organizations. Top companies throughout the world have trusted Kelly as a premier source of engineering talent and services since 1965. And engineering job seekers know Kelly as a firm with an unmatched reputation for quality, integrity, and professionalism. Whether you seek the variety and flexibility of working on short-term project engagements or prefer contract-to-hire or direct-hire placement with our clients, apply with Kelly to explore opportunities that suit your specific professional interests.

About Kelly®

At Kelly, we’re always thinking about what’s next and advising job seekers on new ways of working to reach their full potential. In fact, we’re a leading advocate for temporary/nontraditional workstyles, because we believe they allow flexibility and tremendous growth opportunities that enable a better way to work and live. Connecting great people with great companies is what we do best, and our employment opportunities span a wide variety of workstyles, skill levels, and industries around the world.

Kelly is an equal opportunity employer committed to employing a diverse workforce, including, but not limited to, minorities, females, individuals with disabilities, protected veterans, sexual orientation, gender identity. Equal Employment Opportunity is The Law.

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