Application

This unit of competency defines the skills and knowledge required to maintain and repair the cooling systems of combustion engines used in mobile and stationary plant and equipment.

It covers servicing, preventative maintenance, diagnosis and repair of combustion engine cooling systems and components in vehicles and plant used to support manufacturing, maintenance and engineering related operations.

No licensing, legislative or certification requirements apply to this unit at the time of publication.

What You'll Learn

Assessment Requirements

Performance Evidence

Evidence required to demonstrate competence in this unit must be relevant to and satisfy the requirements of the elements and performance criteria on at least two (2) occasions and include:

following work instructions, standard operating procedures (SOPs) and safe work practices

identifying and interpreting specifications, charts, lists, drawings and service documents to maintain engine cooling systems

checking cooling system safely in accordance with specifications and procedures and measuring and recording water/air flows, pressures and temperature of the cooling system using test equipment

fault finding cooling system down to component level and determining applicable corrective action

obtaining coolant samples and carrying out testing on coolant condition

checking cooling system components for wear and clearances using appropriate test equipment to manufacturers’ specifications

undertaking numerical operations, calculations and formulae for maintaining engine coolant systems

interpreting relevant specifications, parts lists and catalogues for replacement components

removing, repairing and re-fitting cooling system components to engine in accordance with prescribed procedures

testing engine for coolant performance and leaks after repairs

reporting and documenting service, repair/replacement activities.

Knowledge Evidence

Evidence required to demonstrate the required knowledge for this unit must be relevant to and satisfy the requirements of the elements and performance criteria and include knowledge of:

safe work practices and procedures and use of personal protective equipment (PPE)

principles of heat transfer as applied to cooling systems

effect of water treatment, contamination and corrosion on the effectiveness of cooling system operation

components of the cooling system and their function, including:

engine coolant composition

water pumps

thermostats

fan systems and drives

radiators and radiator caps

expansion tanks

hoses

temperature sensors and gauges

checks and procedures to be carried out on cooling systems, including tests for:

corrosion

pressure and temperature

leaks

performance of pumps, thermostats, fans, cooling system sensors and instruments

procedures for:

measuring water/air flows, pressures and temperatures in cooling systems and tools, techniques and equipment

testing coolant test samples and tools and equipment

testing components for wear and clearances and the appropriate measuring/test equipment

obtaining replacement parts

removing/replacing cooling system components from the engine

checking coolant levels and engine coolant leaks

handling hot pressurised cooling systems

containing and disposing of cooling system fluids released from the system

recording test and rectification

variations of test results from specifications and the likely causes of those variations and appropriate corrective action to be taken

precautions to be taken when using test equipment

reasons for identifying faulty components for repair or replacement

correct amount of additive/inhibitor to be added to the coolant.

Assessment Conditions

Assessors must:

have vocational competency in maintaining engine cooling systems at least to the level being assessed with relevant industry knowledge and experience

satisfy the assessor requirements in the Standards for Registered Training Organisations 2015 or its replacement and comply with the National Vocational Education and Training Regulator Act 2011, its replacement or equivalent legislation covering VET regulation in a non-referring state/territory as the case requires

Where possible assessment must occur in operational workplace situations. Where this is not possible or where personal safety or environmental damage are limiting factors, assessment must occur in a sufficiently rigorous simulated environment that reflects realistic operational workplace conditions. This must cover all aspects of workplace performance, including environment, task skills, task management skills, contingency management skills and job role environment skills

Conditions for assessment must include access to all tools, equipment, materials and documentation required, including relevant workplace procedures, product and manufacturing specifications

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

Foundation Skills

• text: This section describes those required skills (reading, writing, oral communication and numeracy) that are essential to workplace performance in this unit of competency. Foundation skills essential to performance are explicit in the performance criteria of this unit of competency.

Prerequisite Units

• {'code': 'MEM09002', 'title': 'Interpret technical drawing'}
• {'code': 'MEM11011', 'title': 'Undertake manual handling'}
• {'code': 'MEM12023', 'title': 'Perform engineering measurements'}
• {'code': 'MEM13015', 'title': 'Work safely and effectively in manufacturing and engineering'}
• {'code': 'MEM16006', 'title': 'Organise and communicate information'}
• {'code': 'MEM18001', 'title': 'Use hand tools'}
• {'code': 'MEM18002', 'title': 'Use power tools/hand held operations'}
• {'code': 'MEM18055', 'title': 'Dismantle, replace and assemble engineering components'}

Parent Qualifications

• MEM40119 — Certificate IV in Engineering
  MEM

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