Ontario Skills Passport
Layout structure
header
Header structure
header
navigation
Display Noc
OSP Occupational Profile

OSP Occupational Profile

Print Occupational Profile

Display page browsing back option list
Display page browsing back option list <<Back
Display Noc Details
NOC Code: NOC Code: 7321b Occupation: Transport trailer technicians
Occupation Description: Occupation Description:
Transport trailer technicians inspect, diagnose, repair and service mechanical, electrical and electronic systems and components of cars, buses, and light and commercial transport trucks. They are employed by motor vehicle dealers, garages and service stations, automotive specialty shops, transportation companies and retail establishments which have automotive service shops. This unit group also includes mechanical repairers who perform major repairs and replacement of mechanical units on newly assembled motor vehicles. They are employed by motor vehicle manufacturing companies. Transport trailer technicians inspect, diagnose, repair and service mechanical, electrical and electronic systems and components of cars, buses, and light and commercial transport trucks. They are employed by motor vehicle dealers, garages and service stations, automotive specialty shops, transportation companies and retail establishments which have automotive service shops. This unit group also includes mechanical repairers who perform major repairs and replacement of mechanical units on newly assembled motor vehicles. They are employed by motor vehicle manufacturing companies.

  • Click on any of the Essential Skills to view sample workplace tasks for this occupation.
  • Scroll down the page to get information on career planning, education and training, and employment and volunteer opportunities.

Table will display the Skill Level for the Noc specified
Essential Skills Essential Skills Levels
Reading Reading 1 2 3
Writing Writing 1
Document Use Document Use 1 2 3
Digital Technology Digital Technology 1 2
Oral Communication Oral Communication 1 2 3
Scheduling or Budgeting and Accounting Scheduling or Budgeting and Accounting 1
Measurement and Calculation Measurement and Calculation 1 2 3
Data Analysis Data Analysis 1
Numerical Estimation Numerical Estimation 1
Job Task Planning and Organizing Job Task Planning and Organizing 1 2
Decision Making Decision Making 1 2 3 4
Problem Solving Problem Solving 1 2 3
Finding Information Finding Information 1 2


  • The skill levels represented in the above chart illustrate the full range of sample tasks performed by experienced workers and not individuals preparing for or entering this occupation for the first time.
  • Note that some occupational profiles do not include all Numeracy and Thinking Essential Skills.

If you would like to print a copy of the chart and sample tasks, click on the "Print Occupational Profile" button at the top of the page.


Reading
  • Read directives from the Ministry of Transport, such as an instruction to pull off all wheels to make an effective safety inspection. (2)
  • Read service bulletins and upgrade sheets from manufacturers that provide troubleshooting and diagnostic information. (2)
  • Read step-by-step instructions given on labels. For example, read the installation instructions given on a 5th Wheel Rebuild Kit. (2)
  • Read a variety of trade magazines to learn about trailer repair. (2)
  • Read Workplace Hazardous Materials Information System (WHMIS) guidelines as part of required training. (2)
  • Read about new product information and procedures on suppliers' websites. (3)
  • Read manuals to find service, troubleshooting, and repair information. (3)
  • Read Material Safety Data Sheets (MSDS) to locate information about hazardous materials encountered on the shop floor. (3)
Back to Top

Writing
  • Write notes to the supervisor explaining problems with a particular trailer or repair process. (1)
  • Fill in words and phrases and write short notes on work orders, service/preventative maintenance sheets and inspection forms. (1)
  • Write notes to the parts department or supervisor requesting service manuals. (1)
Back to Top

Document Use
  • Make drawings. For example, sketch the outline of a trailer indicating the part of the trailer requiring structural repair. (1)
  • Complete checklists. For instance, fill in the Power Unit checklist. Some checklists have up to 50 items. (1)
  • Identify WHMIS (Workplace Hazardous Materials Information System) icons on the shop floor. (1)
  • Use conversion charts when converting from metric to imperial. (2)
  • Construct simple assembly drawings. For example, make a drawing to show how one piece of metal should fit within another, providing all necessary measurements. (2)
  • Read and enter words, numbers, codes, and short notes on service/preventative maintenance sheets. (2)
  • Read instructions on work orders and fill in information such as mechanic identification, trailer information, time estimates and actual time of work, part numbers, and short notes about the completed work. (2)
  • Complete government inspection certificate checklists. Fill in vehicle information, mechanic identification, and inspections codes. For each inspection item, a reference number is given that corresponds to a page number in the manual. The manual gives the method of inspection and acceptance criteria. (3)
  • Interpret troubleshooting diagrams and charts in service manuals. Some of the charts may use colour to differentiate information. For example, the Trailer Systems Troubleshooting Guide uses 9 colours, each showing different valves and boosters. (3)
  • Use schematic drawings. For instance, look at a wiring schematic for a trailer when checking for problems with a heater. (3)
Back to Top

Digital Technology
  • Use a spreadsheet. For example, check a spreadsheet on the computer screen showing each trailer's history when looking for a pattern of problems. (1)
  • Use word processing. For example, enter numbers, codes and short notes on work orders, service/preventative maintenance sheets, and inspection forms. (1)
  • Use communication software. For example, access a supplier's website. (2)
Back to Top

Oral Communication
  • Talk to government inspectors that visit the shop. (1)
  • Talk to a driver about the problems with a particular trailer. (1)
  • Ask co-workers for assistance. (1)
  • Request parts from the parts department. (1)
  • Discuss with co-workers the work that needs to be done on a specific trailer. (1)
  • Ask for and receive verbal instructions from the supervisor. (2)
  • Discuss with customers their concerns with a particular trailer. (2)
  • Communicate with manufacturers' representatives during training seminars about new products and procedures. (2)
  • Advise the supervisor of inspection failures and may offer solutions to the problem. (2)
  • Provide detailed advice to apprentices learning the trade. (3)
  • Coach co-workers on repair and inspection procedures. (3)
Back to Top

Scheduling or Budgeting and Accounting
  • Track and adjust the amount of time that has been scheduled to complete various tasks. (1)
Back to Top

Measurement and Calculation
  • Convert millimetres to inches when working with parts or manufacturers' specifications from the United States. (1)
  • Measure the length of a piece of metal to be cut. (1)
  • Calculate the area of an inside trailer wall to be re-fitted with plywood panels. (2)
  • Measure the width of one light and the length of the filler plate, then determine the placement of the lights on the filler plate based on the measurements taken and the number of lights to be used. After laying out the lights, measure to see that the lights are evenly spaced. (3)
  • Measure brake lining thickness using vernier calipers and measure brake drum diameter and eccentricity using a dial indicator. (3)
  • Measure the distance from the wheel rim to the kingpin on the roadside and curbside of a trailer when inspecting the alignment of the front axle on a trailer, keeping the proper tension on the tape measure to ensure an accurate reading. Calculate the difference between the measurements to 1/16th inch, and if the axle needs to be adjusted, repeat the process until the measurements meet specifications. (3)
Back to Top

Data Analysis
  • Compare the measurement of wear on a tire tread to Department of Transport specifications. (1)
  • Check reefer unit hours on the control unit to monitor maintenance and inspection requirements. (1)
Back to Top

Numerical Estimation
  • Estimate the amount of time to complete a job listed on a work order based on knowledge of work processes and time requirements. (1)
Back to Top

Job Task Planning and Organizing
  • Most job task planning for transport trailer technicians is short range, dealing with immediate needs. Work orders prepared by the supervisor govern the job tasks for each day. The transport trailer technicians will choose a work order and then decide how to sequence the tasks. They organize their tools and the parts required at the beginning of each job. When there is a job requiring more than one person, they will co-ordinate the work with others. If the supervisor gives priority to another job, they will leave the trailer they are working on to do the job, and then return to the first trailer once the work is complete. A weekly schedule may be used, with some jobs being planned for several days in advance.  (2)
Back to Top

Decision Making
  • Decide what parts are needed for a job. (1)
  • Decide when to leave one job to begin working on another trailer that has just come in to the shop. This decision is based on an assessment of priorities and availability of parts. The supervisor will have input into this decision. (2)
  • Decide what type of welding machine, material or procedure is best suited for a particular job, based on criteria such as the requirements of the job and the standard needed for the repair. There may not be a set procedure in place. (3)
  • Decide to correct an item on a trailer because you believe there is a safety concern even though the acceptance criteria is met at the time of inspection. (4)
Back to Top

Problem Solving
  • The part required for a particular job is not in stock. Talk to the supervisor to discuss the options, which include using a part from another manufacturer, building a part, or contacting the supplier to order a new part. (1)
  • A job is taking longer than expected. Advise the supervisor of the situation and give reasons for the delay. Estimate the additional time needed to complete the job. (1)
  • A trailer has water damage on the inside of the trailer. First determine the source of the problem from a number of possibilities. If you believe there is a crack or hole, use a hose to spray water on the outside of the trailer and look for the source of the problem on the inside of the trailer. Then make the necessary repairs. (2)
  • Help is needed to complete a particular job. Ask a co-worker to help if the time required is small. If help is needed for a longer period of time, advise the supervisor of the number of people needed and an estimation of the time commitment necessary to complete the work. (2)
  • The battery keeps dying on a particular unit. Check for a bad connection, a problem with the alternator, or dirty terminals. If the cause is not found, replace the battery. (3)
  • A problem with dimming lights has been identitied. First eliminate the truck as the source of the problem. Using another power outlet, check each of the components on the unit to diagnose where the problem is. Then make the repair that is needed. (3)
Back to Top

Finding Information
  • Consult the repair manual or inspection manual for information about requirements and procedures. (1)
  • Look up information in suppliers' flyers and catalogues. (1)
  • Access WHMIS and other safety information from materials kept at the safety/ first aid station. (1)
  • Ask co-workers and supervisors for information or advice about a particular problem you are having with a trailer. (2)
  • Access service manuals and product information through suppliers' websites. (2)
Back to Top

footer