The evidence guide provides advice on assessment and must be read in conjunction with the performance criteria, the required skills and knowledge, the range statement and the Assessment Guidelines for the Training Package.

Critical aspects for assessment and evidence required to demonstrate competency in this unit

The evidence required to demonstrate competence in this unit must be relevant to and satisfy all of the requirements of the Elements, Performance Criteria, Required Skills, Required Knowledge and include:

developing effective planning documents

providing the required amount of detail in reports

ensuring currency of relevant WHS/OHS skills and knowledge.

Context of and specific resources for assessment

Performance is demonstrated consistently over time and in a suitable range of contexts.

Resources for assessment include access to:

industry-approved marine operations site where undertaking basic maintenance of marine internal combustion engines, propulsion plant and auxiliary systems can be conducted

tools, equipment and personal protective equipment currently used in industry

relevant regulatory and equipment documentation that impacts on work activities

range of relevant exercises, case studies and/or other simulated practical and knowledge assessments

appropriate range of relevant operational situations in the workplace.

In both real and simulated environments, access is required to:

relevant and appropriate materials and equipment

applicable documentation including workplace procedures, regulations, codes of practice and operation manuals.

Method of assessment

Practical assessment must occur in an:

appropriately simulated workplace environment and/or

appropriate range of situations in the workplace.

A range of assessment methods should be used to assess practical skills and knowledge. The following examples are appropriate to this unit:

direct observation of the candidate undertaking basic maintenance of marine internal combustion engines, propulsion plant and auxiliary systems

direct observation of the candidate applying relevant WHS/OHS requirements and work practices.

Guidance information for assessment

Holistic assessment with other units relevant to the industry sector, workplace and job role is recommended.

In all cases where practical assessment is used it should be combined with targeted questioning to assess Required Knowledge.

Assessment processes and techniques must be appropriate to the language and literacy requirements of the work being performed and the capacity of the candidate.

Required Skills:

Apply safety requirements throughout the work sequence including the use of personal protective equipment (PPE)

Complete:

all work to specification

basic user maintenance of marine internal combustion engine, propulsion plant and auxiliary systems to manufacturer specifications and survey requirements, so as to prevent pollution of the marine environment

maintenance records

Implement safe and environmentally responsible work practices

Plan maintenance activities according to technical, legislative, safety and procedural specifications

Read and interpret manufacturer specifications and safety data sheets (SDS)/material safety data sheets (MSDS)

Select and use appropriate processes, tools and equipment

Required Knowledge:

Basic hydraulic systems and user maintenance requirements

Basic vessel construction

Bearing types, materials, installation and lubrication

Common faults in:

steering gear

refrigeration systems

Construction and maintenance of heat exchangers

Correct pressure and flow conditions

Corrosion prevention

Coupling types, fitting, keys and keyways

Cross connections between:

sea water systems and bilge systems

bilge/ballast/seawater systems and fire main

Dangers associated with:

back-flooding and methods to prevent back-flooding

LPG and petrol vapours

Dangers of refrigerant gas leaks in confined spaces

Diesel engine

construction

fuel injection, timing and control equipment

routine maintenance

Engine:

fault finding techniques

performance and reasons for lack of performance

protection arrangements

Electro-hydraulic steering gear

Emergency steering systems

Faults that can occur with firefighting equipment and systems

Fire main system and components including pumps, hoses and nozzles

Fixed firefighting systems and associated remote shut-offs and closing of appliances

Heat exchanger, keel cooler and raw water cooling systems

Glands, packing and seals

Maintenance of watertight openings and hull fittings

Marine gearbox faults and emergency operation

Method of propulsion reversal including controllable pitch propeller construction

Oil:

filter changing procedures

quality monitoring

Planned maintenance

Propeller types, fitting, keys and keyways, securing nuts , locking

Pump capabilities and requirements for priming

Refrigeration systems and components

Relevant regulations and codes of practice relating to the maintenance of engineering equipment and systems such as firefighting

Routine maintenance:

on steering systems

of refrigeration systems

Rudder and stock bearing supports

Rudder construction and rudder types

Seawater circulating systems

Shutting down machinery

Statutory and organisational requirements for documentation relating to the maintenance of engineering equipment and systems such as firefighting

Storage of LPG cylinders

Testing of LPG detectors

Tiller arm attachment

Types of:

deck machinery

pumps and safety devices

Wet sump lubrication systems

The range statement relates to the unit of competency as a whole. It allows for different work environments and situations that may affect performance. Bold italicised wording, if used in the performance criteria, is detailed below.

Maintenance requirements may include:

Cleaning:

filters

coolers

Greasing

Maintaining emergency equipment

Oiling

Oily water separator

Overhauling and repairing pumps

Scheduled survey inspections

Topping up oils

Engines, propulsion plant and auxiliary systems may include:

Auxiliary equipment and associated spaces

Cooling systems

Deck machinery

Fixed firefighting systems

Fuel systems

Gearbox

Hull fittings

Lubricating systems

Marine two- and four-stroke:

diesel engines

petrol engines

Propeller and immediate shafting alignment

Pumping systems

Refrigeration systems

Steering systems

Sterndrive and water jet drive units

Consumables and equipment may include:

Cleaning chemicals

Coolants

Hand and power tools

Oils and grease

Refrigerant gas

Replacement parts

Test equipment

Nature of breakdown may include:

Cooling water system failure

Engine failure

Exhaust systems

Fuel system failure

Gearbox failure

Lubricating systems failure

Power plant failure

Propeller and shafting arrangements

Pumping systems failure

Refrigeration plant failure

Steering gear failure

Checks of vessel hull, equipment and fittings may include:

Anodes

Intake grates

Keel coolers

Ship side valves

Watertight hatches and openings

Materials may include:

Rags

Spent oil