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Follow the links below to find material targeted to the unit's elements, performance criteria, required skills and knowledge

Elements and Performance Criteria

1. Prepare to inspect and service diesel fuel injection system
   • Job requirements are determined from workplace instructions
   • Servicing information is sourced and interpreted
   • Hazards associated with the work are identified and risks are managed
   • Tools, equipment and materials are selected and checked for serviceability
2. Inspect diesel fuel injection system
   • Inspection is carried out according to manufacturer specifications, workplace procedures, and safety and environmental requirements
   • Inspection results are compared with manufacturer specifications
   • Inspection findings are reported according to workplace procedures, including recommendations for necessary repairs or adjustments
3. Service diesel fuel injection system
   • Service and adjustments are carried out according to manufacturer specifications, workplace procedures, and safety and environmental requirements, and without causing damage to components or systems
   • Post-service testing is carried out according to workplace procedures, including engine start-up check for leaks and operation
4. Complete work processes
   • Final inspection is made to ensure work is to workplace expectations and vehicle or machinery is presented ready for use
   • Work area is cleaned, waste and non-recyclable materials are disposed of, and recyclable material is collected
   • Tools and equipment are checked and stored according to workplace procedures
   • Workplace documentation is processed according to workplace procedures
5. Prepare to inspect and service diesel fuel injection system
   • Job requirements are determined from workplace instructions
   • Servicing information is sourced and interpreted
   • Hazards associated with the work are identified and risks are managed
   • Tools, equipment and materials are selected and checked for serviceability
6. Inspect diesel fuel injection system
   • Inspection is carried out according to manufacturer specifications, workplace procedures, and safety and environmental requirements
   • Inspection results are compared with manufacturer specifications
   • Inspection findings are reported according to workplace procedures, including recommendations for necessary repairs or adjustments
7. Service diesel fuel injection system
   • Service and adjustments are carried out according to manufacturer specifications, workplace procedures, and safety and environmental requirements, and without causing damage to components or systems
   • Post-service testing is carried out according to workplace procedures, including engine start-up check for leaks and operation
8. Complete work processes
   • Final inspection is made to ensure work is to workplace expectations and vehicle or machinery is presented ready for use
   • Work area is cleaned, waste and non-recyclable materials are disposed of, and recyclable material is collected
   • Tools and equipment are checked and stored according to workplace procedures
   • Workplace documentation is processed according to workplace procedures

Range Statement

This section specifies work environments and conditions that may affect performance. Essential operating conditions that may be present (depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts) are included. Bold italicised wording, if used in the performance criteria, is detailed below.

Safety and environmental requirements must include:	work health and safety (WHS) and occupational health and safety (OHS) requirements, including procedures for: working with high pressure diesel fuel systems working with high voltage diesel fuel injectors working with stored fuel pressures engine start-up and shut-down environmental requirements, including procedures for trapping, storing and disposing of fluids released from fuel systems.
Service must include:	replacing fuel filters servicing sedimenter filters bleeding fuel systems as required servicing air filters.

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Performance Evidence

Before competency can be determined, individuals must demonstrate they can perform the following according to the standards defined in this unit’s elements, performance criteria, range of conditions and foundation skills:

inspect and service a diesel fuel injection system on two different vehicles or machinery.

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Knowledge Evidence

Individuals must be able to demonstrate knowledge of:

work health and safety (WHS) and occupational health and safety (OHS) requirements relating to inspecting and servicing diesel fuel injection systems, including procedures for:

working with high pressure diesel fuel systems

working with high voltage diesel fuel injectors

working with stored fuel pressures

engine start-up and shut-down

environmental requirements, including procedures for trapping, storing and disposing of fluids released from fuel systems

application, purpose and operation of air filter and air intake housing and ducting

identification and function of mechanically controlled diesel fuel injection system and components, including:

types and applications of fuels, including diesel and biofuels

fuel tank and lines

fuel filters and sedimenter filters

fuel supply pumps

injection pumps, including:

in-line

rotary

injector pipes

injectors

overflow or leak-off pipes

identification and function of electronic diesel fuel injection systems and common rail fuel systems and components, including:

fuel tank and lines

fuel filters and sedimenter filter

fuel supply pumps

injection pumps

pressure and injector pipes

fuel rail

injectors

overflow or leak-off pipes

electronic control unit and sensors

inspection procedures for diesel fuel injection systems, including procedures relating to leaks, damaged piping and sedimentary sight glasses

service and adjustment procedures for diesel fuel injection systems, including:

servicing sedimenter filter

replacing fuel filter

bleeding fuel system as required

servicing air filter and air intake housing and ducting

engine speed adjustments as required and operational testing

post-service testing procedures for diesel fuel injection system.

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