Unit of competency Outline

Date retreived
22/07/2026 10:01 AM AWST

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Demonstrate basic knowledge of marine diesel engines and systems

Demonstrate basic knowledge of marine diesel engines and systems

Unit of competency
National Code
MARL006
State Code
WH873
TGA Status
Replaced
DTWD Status
Replaced
Current Release Number
1.00
Current Release Date
07/10/2013
View on TGA
State Implementation and Classification
Approved Date
04/02/2014
Field of Education
031701 - Maritime Engineering
Original Release Date
04/02/2014
Nominal Hours
60
Description
This unit involves the knowledge required to operate and maintain marine diesel engines and systems on a commercial vessel.This unit applies to people working in the maritime industry as a Marine Engineering Watchkeeper on commercial vessels greater than 750 kW or as an Engineer Class 3 Near Coastal.This unit has links to legislative and certification requirements.
Notes
Elements and Performance Criteria
1 Outline stages of combustion in two-stroke and four-stroke cycle diesel engines
  • 1.1 Two-stroke and four-stroke cycle diesel engines are compared and contrasted
  • 1.2 Methods and diagnostic information used in determining engine combustion characteristics are specified
  • 1.3 Diagnostic information is used to identify and interpret common combustion faults and to produce typical diagrams for analysing faults
2 Explain means of pressure- charging diesel engines
  • 2.1 Pressure-charging principles and their influence on engine design and waste heat recovery are explained
  • 2.2 Different methods of pressure-charging diesel engines are clarified
  • 2.3 Emergency isolation procedures used when pressure-charging diesel engines are clarified
3 Explain operation of diesel engine governors
  • 3.1 Governing principles, common governor types and related controls are outlined
  • 3.2 Different requirements for governing diesel engines for propulsion and power generation are explained
  • 3.3 Problems of mismatched engine sizes/prime mover types when sharing common loads are outlined
4 Explain properties of materials used in construction of engine components
  • 4.1 Properties of materials used in construction of engine components are specified
  • 4.2 Dynamic stresses and loads, materials and service limitations of engine components are outlined
  • 4.3 Construction and operating cycle forces of diesel engine components are outlined
  • 4.4 Relationship between critical speed, use of detuners/dampers and materials in engine components is clarified
5 Explain safe working practices associated with diesel engines during maintenance, repair and operation
  • 5.1 Safe practices for isolating propulsion and power generation diesel engines prior to work commencement are confirmed
  • 5.2 Safety protective clothing to be used during all aspects of diesel maintenance is identified
  • 5.3 Hazards associated with working on diesel engines and systems including working in enclosed spaces are identified
  • 5.4 Correct procedures for using hydraulic tools and high-pressure fuel injection test equipment are clarified
  • 5.5 Purpose, operation and maintenance of safety interlocks and protective cut-outs of engine manoeuvring systems is determined
6 Explain procedures for preventing and responding to crankcase and airline explosions, and scavenge and uptake fires
  • 6.1 Causes, symptoms and means of preventing and extinguishing uptake and economiser fires are outlined
  • 6.2 Risks of continued service with an isolated waste heat unit are assessed
  • 6.3 Causes, symptoms, methods of extinguishing and prevention of scavenge fires are evaluated
  • 6.4 Causes and hazards associated with starting airline explosions are identified
  • 6.5 Protective devices fitted to air starting systems to minimise risk of explosion, and routine inspection and maintenance required are detailed
  • 6.6 Causes and ways of preventing crankcase explosions in both diesel and dual-fuel engines are outlined
  • 6.7 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
No information
No information
Replaces
State Code National Code Title Type
WG466 MARL5008A Demonstrate basic knowledge of marine diesel engines and systems Unit of competency
Replaced By
State Code National Code Title Type
OCG50 MARL057 Demonstrate basic knowledge of marine diesel engines and systems Unit of competency