Unit of competency Outline
Date retreived
22/07/2026 10:31 AM AWST
22/07/2026 10:31 AM AWST
Whilst all efforts are made to provide accurate and timely information from the relevant source/documentation, please be aware that the information supplied may not be the most current version. The accuracy of the detail has not been confirmed by the Department and therefore should not be relied upon without first confirming the contents.
Demonstrate advanced knowledge of marine auxiliary machinery and systems
Demonstrate advanced knowledge of marine auxiliary machinery and systems
Unit of competency
National Code
MARL031
MARL031
State Code
AUG25
AUG25
TGA Status
Replaced
Replaced
DTWD Status
Replaced
Replaced
State Implementation and Classification
Approved Date
28/08/2015
Field of Education
031701 - Maritime Engineering
Original Release Date
28/08/2015
Nominal Hours
80
Description
This unit involves the skills and knowledge required to operate and maintain auxiliary machinery and associated systems on board a commercial vessel. This includes evaluating ship systems, assessing lubricants and lubricant contamination, and analysing the operation of major items of marine auxiliary machinery.This unit applies to the work of a Marine Engineer Class 1 and forms part of the requirements for the Certificate of Competency Marine Engineer Class 1 issued by the Australian Maritime Safety Authority (AMSA).No licensing, legislative or certification requirements apply to this unit at the time of publication.
Notes
Elements and Performance Criteria
1 Evaluate ship systems
- 1.1 Conventional systems are analysed from ship layout drawings and performance data
- 1.2 Viability and potential problems of new systems and advanced specialist vessels are evaluated
- 1.3 Suitable modifications are devised for systems that are not performing satisfactorily or recommendations are made on alternative systems
- 1.4 Manufacturer claims about new products and their suitability for use in existing conditions are evaluated
- 1.5 Performance of different pumps and heat exchangers is assessed and their applications are compared for different purposes
- 1.6 Performance of shipboard pollution control equipment is evaluated
2 Assess materials failure
- 2.1 Type of materials failure that impact on marine auxiliary components is analysed
- 2.2 Type and properties of metallic and non-metallic materials used in the marine field are evaluated
- 2.3 Ideal properties of materials required for components of auxiliary machinery are analysed
- 2.4 Repair methods used for auxiliary machines and constraints on engineering staff engaged in repairing auxiliary machinery are analysed
- 2.5 Type and purpose of destructive and non-destructive testing of materials are compared
3 Analyse lubrication
- 3.1 Mechanism of lubrication between two surfaces is explained
- 3.2 Factors influencing good lubrication are identified and evaluated
- 3.3 Different types of lubrication applied to marine machinery are compared and contrasted
- 3.4 Relative advantages of synthetic lubricants and mineral oils are assessed
- 3.5 Methods of assuring quality of lubrication are identified
4 Analyse fuel and lubricating oil contaminants
- 4.1 Symptoms, effects and possible remedial actions for different types of contaminants in fuel are evaluated
- 4.2 Types of contaminants that affect lubricants and remedial actions required for different forms of contamination are identified
- 4.3 Products used to counter poor quality fuels and to improve properties of lubricating oils are assessed
- 4.4 Safety measures to be applied when fuels are found to be outside class requirements are identified
5 Analyse shafting systems, bearings, couplings, clutches and shaft seals that form transmission system
- 5.1 Different types and methods of checking alignment and wear of shafting, shaft bearings and thrust blocks are identified
- 5.2 Assembly and dismantling procedures for muff and flange type couplings are compared and contrasted
- 5.3 Different types, methods of operation and maintenance requirements of clutches are compared
- 5.4 Different types, maintenance requirements and operation of stern tubes, tail shaft seals and stern bearing lubrication systems under adverse conditions are evaluated
6 Analyse steering gears and controllable pitch propeller systems
- 6.1 Regulatory requirements for steering gears of different types of vessels are identified
- 6.2 Operation of various types of steering gear arrangements are analysed
- 6.3 Operation and performance of controllable pitch propeller (CPP) and fixed pitch systems are compared and contrasted
- 6.4 Modes of operation of CPP systems are explained
- 6.5 Effects and countermeasures, in the event of failure in the control system or seals of a CPP system, are identified
7 Analyse marine transmission systems
- 7.1 Operation and performance of different marine transmission systems are compared and contrasted
- 7.2 Procedure for inspecting a set of reduction gears from a propulsion system is analysed
- 7.3 Types and locations of faults that may occur in gearing systems and repair options available are analysed
8 Analyse marine air compressors
- 8.1 Procedures for assessing performance of reciprocating and rotary compressors by output and condition monitoring techniques are explained
- 8.2 Effects of multi staging, inter-cooling and clearance volume are explained
- 8.3 Importance of all fittings and safety devices in compressed air system is explained
- 8.4 Full automatic operation of starting air compressors is explained
9 Evaluate shipboard refrigeration and air conditioning systems
- 9.1 Principle of air conditioning systems is explained and how ideal conditions are achieved in conditioned space is analysed
- 9.2 Automatic operation of a typical marine provision fridge plant capable of maintaining different temperatures in different cold rooms is analysed
- 9.3 Hazards associated with CFCs and HCFCs, and regulations controlling their production and usage are analysed
- 9.4 Procedure for evacuation and recovery of refrigerants from the system is outlined
10 Evaluate operation of inert gas systems on crude oil tankers
- 10.1 Location and functions of all components, fittings and safety devices in an inert gas system are identified
- 10.2 Operation of a typical inert gas system found on crude oil tankers is analysed
- 10.3 Operation and maintenance requirements of inert gas systems are explained
11 Evaluate plant efficiency and relate problems in a turbo alternator
- 11.1 Operating parameters and associated protections for turbo alternator systems are analysed
- 11.2 Procedure for assessing efficiency of auxiliary steam turbines is explained by analysing measured parameters
- 11.3 Methods of steam and air leak detection in turbo alternator systems are compared
- 11.4 Effects of fouling of condenser and changes in sea water temperature in turbo alternator systems are analysed
No information
No information
Replaces
| State Code | National Code | Title | Type |
|---|---|---|---|
| WG488 | MARL6018A | Demonstrate advanced knowledge of marine auxiliary machinery and systems | Unit of competency |
Replaced By
| State Code | National Code | Title | Type |
|---|---|---|---|
| OCH19 | MARL048 | Demonstrate advanced knowledge of marine auxiliary machinery and systems | Unit of competency |
| State Code | National Code | Title | Type |
|---|---|---|---|
| AVQ0 | MAR60215 | Advanced Diploma of Maritime Operations (Marine Engineering Class 1) | Qualification |