The T8 Preventative Maintenance & Inspection course is required for entry into the Diesel Technician – Tech C Apprenticeship program and prepares students to perform general preventative maintenance and inspection tasks. Subjects covered include maintenance documentation, diagnostic codes, normal vehicle operation, vibration dampers, belts, pulleys and tensioners, vehicle fluids, wiring harnesses, connectors and seals, water separators, fuel heaters, exhaust systems, piping and crankcases.