Education: Secondary (high) school graduation certificate. Tasks: Adjust, repair or replace parts and components of commercial transport truck systems. Confirm findings with supervisor to determine whether to repair or replace unit. Discuss work with supervisor. Inspect and test mechanical units to locate faults and malfunctions. Inspect mechanical units to locate faults and malfunctions. Repair or replace mechanical units or components. Test and adjust repaired systems to manufacturer's specifications. Estimate parts and labour cost to perform vehicle maintenance and repairs . Perform scheduled maintenance service. Test and adjust units to specifications. Complete reports to record problems and work performed. Certificates, licences, memberships, and courses : Truck-Trailer Repairer Trade Certification. Experience: 2 years to less than 3 years.