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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. Outline stages of combustion in two-stroke and four-stroke cycle diesel engines
   • Two-stroke and four-stroke cycle diesel engines are compared and contrasted
2. Methods and diagnostic information used in determining engine combustion characteristics are specified
3. Diagnostic information is used to identify and interpret common combustion faults and to produce typical diagrams for analysing faults
4. Explain means of pressure-charging diesel engines
   • Pressure-charging principles and their influence on engine design and waste heat recovery are explained
5. Different methods of pressure-charging diesel engines are clarified
6. Emergency isolation procedures used when pressure-charging diesel engines are clarified
7. Explain operation of diesel engine governors
   • Governing principles, common governor types and related controls are outlined
8. Different requirements for governing diesel engines for propulsion and power generation are explained
9. Problems of mismatched engine sizes/prime mover types when sharing common loads are outlined
10. Explain properties of materials used in construction of engine components
    • Properties of materials used in construction of engine components are specified
11. Dynamic stresses and loads, materials and service limitations of engine components are outlined
12. Construction and operating cycle forces of diesel engine components are outlined
13. Relationship between critical speed, use of detuners/dampers and materials in engine components is clarified
14. Explain safe working practices associated with diesel engines during maintenance, repair and operation
    • Safe practices for isolating propulsion and power generation diesel engines prior to work commencement are confirmed
15. Personal protective (PPE) to be used during all aspects of diesel maintenance is identified
16. Hazards associated with working on diesel engines and systems, including working in enclosed spaces, are identified
17. Correct procedures for using hydraulic tools and high-pressure fuel injection test equipment are clarified
18. Purpose, operation and maintenance of safety interlocks and protective cut-outs of engine manoeuvring systems is determined
19. Explain procedures for preventing and responding to crankcase and air-line explosions, and scavenge and uptake fires
    • Causes, symptoms and means of preventing and extinguishing uptake and economiser fires are outlined
20. Risks of continued service with an isolated waste heat unit are assessed
21. Causes, symptoms, methods of extinguishing and prevention of scavenge fires are evaluated
22. Causes and hazards associated with starting air-line explosions are identified
23. Protective devices fitted to air starting systems to minimise risk of explosion, and routine inspection and maintenance required are detailed
24. Causes and ways of preventing crankcase explosions in both diesel and dual-fuel engines are outlined
25. Procedure to be taken in the event of an early warning of a hazardous crankcase atmosphere and required procedure to be followed after engine has stopped are clarified

Range Statement

Range is restricted to essential operating conditions and any other variables essential to the work environment.

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Performance Evidence

Evidence required to demonstrate competence in this unit must be relevant to and satisfy all of the requirements of the elements and performance criteria on at least one occasion and include: accessing diagnostic information related to marine diesel engines and systems assessing own work outcomes and maintaining knowledge of current codes, standards, regulations and industry practices explaining basic operation of marine diesel engines and systems identifying causes associated with starting air-line explosions, including: airlock in feed water system cleanliness of economiser tubes failure of economiser feed pump loss of feed water supply identifying and applying relevant solutions for addressing problems associated with marine diesel engines and systems identifying and interpreting diagnostic information, and performing mathematical calculations related to operating, maintaining and repairing marine diesel engines and systems identifying methods, procedures and materials needed for operating, maintaining and repairing marine diesel engines and systems imparting knowledge and ideas through verbal, written and visual means providing accurate and reliable information providing appropriate level of detail in responses reading and interpreting manuals, technical specifications, safety data sheets (SDS)/material safety data sheets (MSDS) and manufacturer guides related to operating, maintaining and repairing marine diesel engines and systems.

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Knowledge Evidence

Evidence required to demonstrate competence in this unit must be relevant to and satisfy all of the requirements of the elements and performance criteria and include knowledge of: basic principles of diesel engine operation, including: basic construction engine principles engine types fuel atomisation and combustion heat-engine cycle ideal gas cycle common combustion faults, including: engine cylinder fuel supply lack of total combustion components of diesel engines crankcase and air-line explosions, scavenge and uptake fires diesel engine, including: medium speed and high-speed diesel engine slow-speed diesel engine diesel engine: lubrication systems propulsion and power generation diagnostic information, including: engine efficiency fuel consumption temperature hazards, including: acids chemicals defective or bypassed machinery protective devices defective or inappropriately adjusted exhaust systems enclosed spaces flammable liquids under pressure hydrocarbons leaking oil and fuel lifting heavy components both unaided and with lifting gear manoeuvring systems of diesel engines methods of pressure-charging diesel engines, including: exhaust gas turbocharging positive displacement engine-driven blowers under-piston assistance pressure-charging diesel engines, including common service faults, actions to rectify faults, emergency operation and isolation procedures properties and characteristics of fires safe working practices associated with diesel engines during operation, maintenance and repair starting methods of diesel engines work health and safety (WHS)/occupational health and safety (OHS) legislation, policies and procedures.

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