Elements describe the essential outcomes.

Performance criteria describe the performance needed to demonstrate achievement of the element.

1 

Determine responsibilities of an Engineer Class 2 in relation to auxiliary machinery of a vessel 

1.1

Commonwealth, state/territory and local legislation and regulations, which relate to auxiliary machines and systems  in terms of safety, repairs and pollution, including implementation, is identified

1.2

Safe operating practices for all steam plant are examined and standing orders as to their operation are prepared or modified

1.3

Procedures for establishing engine room staff who are fully conversant with safe practices for operation and maintenance of auxiliary machines and systems are outlined

2 

Assess material properties and their application to engine room situations 

2.1

Properties of materials and how these can be determined by simple tests are explained

2.2

Common methods for non-destructive testing  (NDT) and their application to auxiliary machinery and components are outlined

2.3

Common non-metallic materials used in the marine industry are assessed and their properties, applications and restrictions on usage are explained

2.4

Common metallic materials used in marine industry, their applications, failure mechanisms and methods to limit or reduce failures are assessed

3 

Outline procedure for sampling and carrying out onboard and laboratory tests on fuel and lubricants 

3.1

Importance and implications of continual monitoring of quality of fuel oils and lubricants in efficient operation of machinery are explained

3.2

Procedures for onboard testing for fuels and lubricants are clarified

3.3

Laboratory tests that may be conducted on fuels and lubricants and how results can be interpreted and utilised as part of a maintenance program are detailed

4 

Explain pre-treatment of residual fuel and servicing of contaminated fuel and lubricants 

4.1

Operation of centrifugal separators is outlined and factors that affect optimum separation are analysed

4.2

Procedures for dealing with contamination of oils by water, fuel or solid debris including recognition of dangerous levels and possible consequences, are clarified

4.3

Symptoms, causes, effects and methods of treatment of oils that have become infected by bacteria are identified

4.4

Function and operation for onboard fuel blender and alternative fuel treatments are explained

5 

Assess operational problems with pumps and pumping systems handling sea water 

5.1

Procedure for evaluating pump or pumping system, including heat exchangers and methods of locating cause of problems that affect output and performance, is clarified

5.2

Operation of a self-priming system used on bilge, ballast or cargo pumping arrangements is explained

5.3

Different types of distillation plants used on ships are compared and contrasted taking into account operation, performance, problems and applications

5.4

Main reasons for corrosion in sea water systems and regions most affected are explained

5.5

Operation of corrosion prevention systems  fitted to pumping systems is assessed

6 

Apply fault-finding procedures for air compressors and compressed air systems 

6.1

Effects of common faults  on operation of single and multi- stage compressors are interpreted

6.2

Reasons for and effects of high levels of oil or water in compressed air are explained

6.3

Effects of operating air compressors on synthetic lubricating oils are explained with regards to carbon formation and water contamination of the oil

6.4

Procedures for inspecting and maintaining air receivers and associated fittings are clarified

7 

Outline construction, installation and operation of steering gears, stabilisers and bow thrusters 

7.1

Construction, installation and operation of hydraulic steering gear is explained

7.2

Construction and operation of stabilisers is explained

7.3

Construction and operation of bow thrusters is explained

7.4

Normal alarms and safety devices fitted to steering gears for all classes of vessel are identified

7.5

Auto and manual changeover procedures are analysed in the event of faults occurring in a steering gear

7.6

Oil changing and air purging procedures for a steering gear are clarified

7.7

Fault finding procedures for steering gear are clarified

7.8

Procedures for change over to alternative systems of power or control of steering gear are clarified

8 

Assess common faults in refrigeration and air conditioning systems 

8.1

Symptoms, effects and remedial action for common faults in refrigeration and air conditioning systems are assessed

8.2

Pumping down, leak test, gas charge and oil charge procedures are clarified

8.3

Functions and operation of all components of refrigeration and air conditioning plant  are analysed

8.4

Correct procedures for recovery of refrigerants from refrigeration systems are implemented

9 

Outline pollution prevention regulations and operation of equipment  

9.1

International Convention for the Prevention of Pollution from Ships (MARPOL) regulations are identified and their implications for marine engineers and ship operators are explained

9.2

Operation of modern oily water separators, oil content monitors and how they comply with MARPOL regulations are explained

9.3

Operation of typical sewage plants and regulations controlling their usage are explained

9.4

Operation of incinerators, material that may legally be burned and monitoring devices is explained

10 

Explain basic operation of marine gas turbines 

10.1

Basic flow of air and gas through a simple cycle marine gas turbine is outlined

10.2

Materials and construction of compressor, combustion system and turbine in a single and two-shaft design turbine are outlined

10.3

Basic controls required for control and protection of plant are outlined

10.4

Accessories  necessary for safe operation are identified

11 

Explain shafting arrangement of vessel 

11.1

Different shafting arrangements found on vessels from main engine to propeller are outlined

11.2

Performance of different couplings and coupling bolts is assessed

11.3

Arrangement of a stern tube  is completed

11.4

Procedure to mount and unmount propeller on tail shaft is clarified

11.5

Different shaft bearings, couplings, sealing and lubrication arrangements of transmission system are identified

12 

Explain types, operation, and maintenance requirements of steam turbine machinery found in larger vessels 

12.1

Types of steam turbines, their location, and typical operating conditions of temperature and pressure are explained

12.2

Common operational problems associated with steam turbine plants, symptoms and effects of these problems and possible remedies are outlined

12.3

Process of warming-through and shutting down turbine plant is explained

12.4

Maintenance requirements for achieving optimum performance of an auxiliary steam turbine plant are outlined

Foundation skills essential to performance are explicit in the performance criteria of this unit of competency.

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

Auxiliary machines and systems include one or more of the following:

• boiler
• cargo handling equipment
• compressors
• deck machinery
• diesel generator
• evaporators
• pumps
• refrigerating installation
• separators

Testing includes one or more of the following:

• density
• fuel in lubricating oil
• pour point
• viscosity
• water contamination

Corrosion prevention systems include one or more of the following:

• anodes
• chemical injection
• impressed current
• marine growth inhibiting systems
• special coatings

Components of refrigeration and air conditioning plant must include:

• all fittings
• safety devices

Accessories include one or more of the following:

• accessory gear
• lube oil:

• coolers
• pump
• filter

• starting device

Arrangement of a stern tube includes one or more of the following:

• lubrication circuit
• shaft sealing
• tail shaft bearing

Evidence required to demonstrate competence in this unit must be relevant to and satisfy all of the requirements of the elements, performance criteria and range of conditions on at least one occasion and include:

• accessing information and sketching diagrams to interpret and explain testing requirements related to operating marine auxiliary machines
• applying relevant work health and safety/occupational health and safety (WHS/OHS) requirements and work practices
• assessing own work outcomes and maintaining knowledge of current codes, standards, regulations and industry practices
• identifying and interpreting numerical and graphical information related to starting up and shutting down marine auxiliary machines on commercial vessels
• identifying and suggesting ways of rectifying faults and malfunctions in marine auxiliary machines on commercial vessels
• identifying methods, procedures and materials needed for operating, maintaining and repairing marine auxiliary machines on commercial vessels
• imparting knowledge and ideas through verbal, written and visual means
• reading and interpreting written information related to the operation, performance and maintenance of marine auxiliary machines, including machinery specifications, machinery design drawings, machine drawings, operational manuals, specifications, and electrical and control circuit diagrams.

Evidence required to demonstrate competence in this unit must be relevant to and satisfy all of the requirements of the elements, performance criteria and range of conditions and include knowledge of:

• corrosion causes and prevention
• fuels and basic principles of fuel systems
• International Convention for the Prevention of Pollution from Ships (MARPOL)
• nature and causes of typical start up and shut down malfunctions of main and auxiliary machinery, and associated systems and available methods for their detection and rectification
• non-destructive testing procedures and standards
• operational characteristics and performance specifications for the different types of auxiliary machinery and associated systems usually found on a commercial vessel, including pumps, air compressors, steering gears, heat exchangers and evaporators
• pollution prevention regulations
• principles and procedures of machinery lubrication
• procedures for carrying out the start up and shut down of main and auxiliary machinery and associated systems to ensure compliance with company and survey requirements and regulations
• properties of metallic and non-metallic materials
• purpose and content of safety data sheets/material safety data sheets
• responsibilities of an Engineer Class 2 in relation to auxiliary machinery of a vessel
• safety, environmental and hazard control precautions and procedures relevant to start up and shut down of marine auxiliary machinery and associated systems
• types of auxiliary machinery and components
• WHS/OHS legislation and policies.