Education: Secondary (high) school graduation certificate. Work site environment: Dusty. Hot. Noisy. Work setting: Workshop. Tasks: Adjust, repair or replace parts and components of commercial transport truck systems. Adjust, repair or replace parts and components of truck-trailer systems. Test and adjust repaired systems to manufacturer's specifications. Perform scheduled maintenance service. Complete reports to record problems and work performed. Provide customer service. Area of specialization: Truck-trailer repair. Experience: 1 year to less than 2 years.