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Evidence Guide: MEM18024B - Maintain engine cooling systems

Student: __________________________________________________

Signature: _________________________________________________

Tips for gathering evidence to demonstrate your skills

The important thing to remember when gathering evidence is that the more evidence the better - that is, the more evidence you gather to demonstrate your skills, the more confident an assessor can be that you have learned the skills not just at one point in time, but are continuing to apply and develop those skills (as opposed to just learning for the test!). Furthermore, one piece of evidence that you collect will not usualy demonstrate all the required criteria for a unit of competency, whereas multiple overlapping pieces of evidence will usually do the trick!

From the Wiki University

 

MEM18024B - Maintain engine cooling systems

What evidence can you provide to prove your understanding of each of the following citeria?

Assess cooling system operation

  1. Heat transfer characteristics, water treatment, and corrosion principles and terminology are understood.
  2. Relevant information is obtained and correctly interpreted prior to any testing.
  3. System checks are undertaken safely and to prescribed procedures.
  4. Water/air flows, pressures and temperatures are correctly determined and recorded.
  5. Faults are correctly isolated to component level and appropriate corrective action is determined.
  6. Test equipment is adapted and used correctly.
  7. Coolant test samples are correctly obtained and tested.
  8. Component parts are correctly assessed for reuse or replacement.
Heat transfer characteristics, water treatment, and corrosion principles and terminology are understood.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Relevant information is obtained and correctly interpreted prior to any testing.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

System checks are undertaken safely and to prescribed procedures.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Water/air flows, pressures and temperatures are correctly determined and recorded.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Faults are correctly isolated to component level and appropriate corrective action is determined.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Test equipment is adapted and used correctly.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Coolant test samples are correctly obtained and tested.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Component parts are correctly assessed for reuse or replacement.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Rectify faulty components

  1. Component wear and clearances are correctly determined using appropriate test equipment and manufacturers' recommendations.
  2. Replacement components are correctly selected for application using manufacturers' data.
  3. Components are removed and refitted to engine by following prescribed procedures.
  4. Test and repair/replacement activities are accurately recorded.
  5. Engine is free of coolant leaks and the cooling system contains the correct level of additive/inhibitor after repair work is carried out.
Component wear and clearances are correctly determined using appropriate test equipment and manufacturers' recommendations.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Replacement components are correctly selected for application using manufacturers' data.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Components are removed and refitted to engine by following prescribed procedures.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Test and repair/replacement activities are accurately recorded.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Engine is free of coolant leaks and the cooling system contains the correct level of additive/inhibitor after repair work is carried out.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Assessed

Teacher: ___________________________________ Date: _________

Signature: ________________________________________________

Comments:

 

 

 

 

 

 

 

 

Instructions to Assessors

Evidence Guide

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

Overview of assessment

A person who demonstrates competency in this unit must be able to maintain and rectify engine cooling systems. Competency in this unit cannot be claimed until all prerequisites have been satisfied.

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

Assessors must be satisfied that the candidate can competently and consistently perform all elements of the unit as specified by the criteria, including required knowledge, and be capable of applying the competency in new and different situations and contexts.

Context of and specific resources for assessment

This unit may be assessed on the job, off the job or a combination of both on and off the job. Where assessment occurs off the job, that is the candidate is not in productive work, then an appropriate simulation must be used where the range of conditions reflects realistic workplace situations. The competencies covered by this unit would be demonstrated by an individual working alone or as part of a team. The assessment environment should not disadvantage the candidate.

This unit could be assessed in conjunction with any other units addressing the safety, quality, communication, materials handling, recording and reporting associated with maintaining and rectifying engine cooling systems, or other units requiring the exercise of the skills and knowledge covered by this unit.

Method of assessment

Assessors should gather a range of evidence that is valid, sufficient, current and authentic. Evidence can be gathered through a variety of ways including direct observation, supervisor's reports, project work, samples and questioning. Questioning techniques should not require language, literacy and numeracy skills beyond those required in this unit of competency. The candidate must have access to all tools, equipment, materials and documentation required. The candidate must be permitted to refer to any relevant workplace procedures, product and manufacturing specifications, codes, standards, manuals and reference materials.

Guidance information for assessment

Required Skills and Knowledge

Required skills

Look for evidence that confirms skills in:

reading, interpreting and following information on written job instructions, specifications, standard operating procedures, charts, lists, drawings and other applicable documents

planning and sequencing operations

checking and clarifying task-related information

checking the cooling system safely and in accordance with standard operating procedures

accurately measuring and recording water/air flows, pressures and temperatures of the cooling system

identifying faulty component(s)

adapting test equipment for use on the cooling system being tested

obtaining and interpreting coolant test samples

checking cooling system components for wear and clearances using appropriate equipment

testing coolant condition including anti-corrosion, anti-freezes etc.

interpreting relevant specifications, parts lists, catalogues etc.

obtaining replacement parts

removing and refitting cooling system components

undertaking test and repair/replacement activities on the cooling system

testing the engine for coolant leaks after repair

checking for conformance to specifications

undertaking calculations and numerical operations within the scope of this unit

reporting and documenting task related information

Required knowledge

Look for evidence that confirms knowledge of:

the principles of heat transfer as applied to cooling systems

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

the components of the cooling system and their function

the checks and procedures to be carried out on cooling systems

hazards and control measures associated with testing cooling systems, including housekeeping

the procedures for measuring water/air flows, pressures and temperatures in cooling systems

the necessary tools, techniques and equipment to carry out the above tests

variations of test results from specifications and the likely causes of those variations

the appropriate corrective action to be taken when variations are identified

the precautions to be taken when adapting test equipment

the procedures, tools, techniques and equipment for testing coolant test samples

the reasons for identifying faulty components for repair or replacement

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

the procedures for obtaining replacement parts

the procedures for removing/replacing cooling system components from the engine

the procedures for checking coolant levels and engine coolant leaks

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

the procedures for recording test and rectification

safe work practices and procedures

Range Statement

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. Essential operating conditions that may be present with training and assessment (depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts) may also be included.

Tested

Includes testing for coolant condition i.e. correct, anti-corrosion, antifreezes etc.

Component

Sensors, caps, gauges, pumps, fan drive belts etc.