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Elements and Performance Criteria

1. Prepare to diagnose and repair marine exhaust and cooling system
   • Job requirements are determined from workplace instructions
   • Diagnostic information is sourced and interpreted
   • Diagnostic options are analysed and those most appropriate to the circumstances are selected
   • Hazards associated with the work are identified and risks are managed
   • Diagnostic tools and equipment are selected and checked for serviceability
2. Diagnose exhaust and cooling system
   • Diagnostic tests are performed according to workplace procedures and safety requirements
   • Faults are identified from diagnostic test results and causes of faults are determined
   • Diagnosis findings, including recommendations for necessary repairs or adjustments, are reported according to workplace procedures
3. Dismantle exhaust and cooling system
   • Tools, equipment and materials are selected and checked
   • Exhaust and cooling system is dismantled as required according to workplace procedures, and safety and environmental requirements
   • Exhaust and cooling system is cleaned and its components are arranged for inspection according to workplace procedures, and safety and environmental requirements
   • Exhaust and cooling system components are inspected, measured and compared with manufacturer specifications
   • Final repair recommendations are made and reported according to workplace procedures
4. Repair and reassemble exhaust and cooling system
   • Repair information is sourced and interpreted
   • Repair options are analysed and those most appropriate to the circumstances are selected
   • Repairs and component replacements and adjustments are carried out according to manufacturer specifications, workplace procedures, and safety and environmental requirements, and without causing damage to components or systems
   • Exhaust and cooling system is reassembled according to manufacturer specifications, workplace procedures and safety requirements
   • Post-repair testing is carried out according to workplace procedures to confirm fault rectification, and any further problems detected as having been introduced during the repair process are rectified
5. Complete work processes
   • Final inspection is made to ensure work is to workplace expectations and vessel is presented ready for use or stored according to workplace procedures
   • 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
6. Prepare to diagnose and repair marine exhaust and cooling system
   • Job requirements are determined from workplace instructions
   • Diagnostic information is sourced and interpreted
   • Diagnostic options are analysed and those most appropriate to the circumstances are selected
   • Hazards associated with the work are identified and risks are managed
   • Diagnostic tools and equipment are selected and checked for serviceability
7. Diagnose exhaust and cooling system
   • Diagnostic tests are performed according to workplace procedures and safety requirements
   • Faults are identified from diagnostic test results and causes of faults are determined
   • Diagnosis findings, including recommendations for necessary repairs or adjustments, are reported according to workplace procedures
8. Dismantle exhaust and cooling system
   • Tools, equipment and materials are selected and checked
   • Exhaust and cooling system is dismantled as required according to workplace procedures, and safety and environmental requirements
   • Exhaust and cooling system is cleaned and its components are arranged for inspection according to workplace procedures, and safety and environmental requirements
   • Exhaust and cooling system components are inspected, measured and compared with manufacturer specifications
   • Final repair recommendations are made and reported according to workplace procedures
9. Repair and reassemble exhaust and cooling system
   • Repair information is sourced and interpreted
   • Repair options are analysed and those most appropriate to the circumstances are selected
   • Repairs and component replacements and adjustments are carried out according to manufacturer specifications, workplace procedures, and safety and environmental requirements, and without causing damage to components or systems
   • Exhaust and cooling system is reassembled according to manufacturer specifications, workplace procedures and safety requirements
   • Post-repair testing is carried out according to workplace procedures to confirm fault rectification, and any further problems detected as having been introduced during the repair process are rectified
10. Complete work processes
    • Final inspection is made to ensure work is to workplace expectations and vessel is presented ready for use or stored according to workplace procedures
    • 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 requirements must include:	work health and safety (WHS) and occupational health and safety (OHS) requirements, including procedures for: lifting and supporting exhaust and cooling system components working with hot exhaust and cooling system components.
Environmental requirements must include:	procedures for trapping, storing and disposing of materials released from exhaust systems.

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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:

diagnose and repair a fault in the fresh water cooling exhaust and cooling systems of two different vessels

diagnose and repair a fault in the raw water exhaust and cooling systems of two different vessels.

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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 diagnosing and repairing marine exhaust and cooling systems, including procedures for:

lifting and supporting exhaust and cooling system components

working with hot exhaust and cooling system components

environmental requirements, including procedures for trapping, storing and disposing of materials released from exhaust systems

application, purpose and operation of marine exhaust and cooling systems and components, including:

fresh water cooling systems, including:

circulation pumps

thermostats

heat exchangers

exhaust manifolds

turbochargers

dry exhausts

raw water cooling systems, including:

pumps, including camshaft, belt, shaft and gear driven

relief valves

engine oil coolers

transmission oil coolers

sacrificial anodes

intercoolers

seawater strainers

exhaust manifolds

exhaust elbows and risers

exhaust tubes and hoses

wet exhausts

mufflers and waterlocks

siphon breaks

exhaust outlet flappers

diagnostic testing procedures for exhaust and cooling systems, including:

manometer measurement

turbocharger boost measurement

raw water system pressure and flow measurement

fresh water cooling system pressure testing

infra-red temperature measurement

dismantling and repair procedures for exhaust and cooling systems, including procedures for inspecting and evaluating the following components:

circulation pumps

thermostats

heat exchangers

turbochargers and intercoolers

raw water pumps, including camshaft, belt, shaft and gear driven

relief valves

sacrificial anodes

seawater strainers

exhaust manifolds

exhaust elbows and risers

exhaust tubes and hoses

mufflers and waterlocks

siphon breaks

exhaust outlet flappers

post-repair testing procedures for exhaust and cooling systems, including water testing procedures while under load.

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