A professional who rebuilds, tests, and calibrates fuel injection units as used on diesel engines, railroad locomotives, trucks, construction equipment, tractors, and power plants. Respnsibilities include:

• Studies repair order and disassembles unit to determine cause of malfunction.
• Refinishes defective parts, using lapping machine to grind and smooth nozzle point and seat.
• Replaces parts which cannot be refinished.
• Assembles and calibrates injection pumps, using test equipment.
• Assembles and tests nozzle assemblies, using test equipment.