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Truck-Trailer Service Technicians service, repair, overhaul, diagnose, and inspect truck-trailers and the related systems and components.

Job Related Skills, Interests and Values

  • Reviewing work orders and discussing work to be performed with supervisor
  • Inspecting, diagnosing, and repairing:
    • Electrical systems
    • Landing gear assemblies and trailer frames
    • Hitching/coupling systems
    • Trailer bodies
    • Suspension systems
    • Tires, wheels, hubs, and axles
    • Air and auxiliary systems, braking systems, heating and refrigeration systems, hydraulic systems, and ventilation devices
  • Using hand tools and specialized diagnostic equipment to diagnose, isolate, and repair faults
  • Performing scheduled maintenance service
  • Testing and adjusting repaired systems to manufacturer performance specifications
  • Advising customers on work performed, general trailer condition, and future work required
  • Communicating effectively with co-workers, customers, and service managers
  • Reading and interpreting owner/operator/manufacturer manuals and service specifications
  • Keeping up-to-date on technology and upgrading skills as required

What Preparation and Training Do You Need?

  • Secondary school diploma or equivalent; math and English credits an asset
  • Co-op, pre-apprenticeship, or technical courses would be helpful
  • Completion of 4,480-hour apprenticeship, including on-the-job and in-school training
  • Exam to obtain Certificate of Qualification

What's Your Future as a Truck-Trailer Service Technician (310J)?

  • Full-time, year-round work with single employer; some may work in mobile units
  • Exposure to pollutants like noise, liquids, fumes, and odours; risk of injury from heavy equipment
  • Employers include trailer manufacturers; sales and repair facilities or garages; and municipally, provincially, or privately owned trucking, bus, and transportation companies

Wage Rate

Apprentice wage increases with skill and experience. Fully qualified workers earn an average of $28.00-$42.00 per hour.

Self-Rating

Truck-Trailer Service Technician (310J)

Ask Yourself: Yes No
Do you consider yourself a continual learner?
Do you enjoy working with a variety of tools?
Do you have a mechanical aptitude and good coordination?
Are you able to follow Health & Safety guidelines?
Do you enjoy doing a variety of different tasks?
Do you have excellent reading and writing skills?
Are you reliable, a self-starter and able to work with minimal supervision?


If you checked YES to the majority of these questions, a career as a Truck-Trailer Service Technician (310J) may be for you!

You might want to look at these similar trades as well;

  • Automotive Service Technician
  • Transmission Technician
  • Truck & Coach Technician
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Transmission Technicians inspect, diagnose, repair, and service manual, automatic, electrical, and electronic controls for cars, buses, and trucks. They may also perform major repair and replacement of mechanical units on newly assembled motor vehicles.

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Truck & Coach Technicians service, repair, overhaul, diagnose, and inspect motor coaches, heavy trucks, and truck-trailers.

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