Elements and Performance Criteria

Compliance and other documentation to include:
certification documentation
registration documentation
legislative, organisation and site requirements and procedures
manufacturer’s specifications and guidelines
Australian Standards and Guidelines, including: AS/NZS3584 and MDG 29
codes of practice
Employment and Workplace Relations legislation
Equal Employment Opportunity and Disability Discrimination legislation
Testing may include:
testing the composition of exhaust emissions within the exhaust stream under load conditions
testing the diesel engine system for;
NOx (oxides of nitrogen),
CO (carbon monoxide),
CO2 (carbon dioxide)
diesel particulate matter
Determining the cause may include:
root cause analysis
troubleshooting techniques
Rectification is:
the combination of actions carried out to restore a diesel engine system to, a condition in which it is able to meet the requirements of the relevant specification and perform its required function
Emissions may include:
NOx (oxides of nitrogen)
CO (carbon monoxide)
CO2 (carbon dioxide)
diesel particulate matter

Excessive emissions may be contributed to by:
inlet or exhaust restriction
engine wear
component failure
contaminated or non-compliant fuel
incorrect fuel/air ratio
lubrication oil in the combustion chamber
the product of abnormal combustion (unintended fuels being breathed by an engine)
Diesel engine systems are:
diesel engines for underground coal mines and their:
inlet systems
exhaust systems
cooling systems
starting systems
shut-down and protection systems
electrical or electronic devices
Work requirements may come from briefings, handovers, and work orders and may include:
service and maintenance schedules
production requirements
nature and scope of tasks
achievement targets
operational conditions
operational requirements
site layout and out of bounds areas
worksite inspection requirements
plant or equipment defects
hazards and potential hazards
coordination requirements or issues
Others may include:
yard persons
processing plant operators
mobile plant operators
other maintenance personnel
Inspect and prepare work area may include:
determining if the proposed work area is a designated safe area
identification of hazards, including:
workshop work area hazard
underground work area hazards
work activity hazards
selection and implementation of control measures for the hazards identified
safeguarding site and non-site personnel by:
erection of barricades and posting of signs
selection of appropriate equipment to ensure personnel safety and protection
Items may include:
replacement parts
fasteners
packing materials
Tools may include:
hand tools
power tools
special tools
testing equipment
Support may include:
other site personnel
contractors
cranes
other lifting equipment
Personal protection equipment may include:
hard hats
eye protection
hearing protection
breathing apparatus
gas/fume masks
prescribed footwear
Pre-start and inspection procedures include:
checking:
cleanliness, particularly coal dust
diesel and other flammable liquid leaks
coolant leaks in radiator or radiator hoses
coolant level
guards are in place and secure
engine oil level is correct
Hazardous and emergency situations may include:
working alone
personal injury
fire
explosions
emissions
electrical
noise
dust
noxious gases
environmental
chemical
Maintenance is to include:
service
adjust
replace
Maintenance may include:
repair
overhaul
modify
Records may include:
inspection and test results
defect identified
defect rectification carried out
item consumed
hazard/risk management reports

Critical aspects for assessment and evidence required to demonstrate competency in this unit
The evidence required to demonstrate competency in this unit must be relevant to worksite operations and satisfy all of the requirements of the performance criteria, required skills and knowledge and the range statement of this unit and include evidence of the following:
knowledge of the requirements, procedures and instructions for the testing, determination of the cause of and rectification of excessive emissionlevels on diesel engine systems
implementation of requirements, procedures and techniques for the safe, effective and efficient completion of the testing, determination of the cause of and rectification of excessive emissionlevels on diesel engines systems
working with others to undertake and complete the testing, determination of the cause of and rectification of excessive emissionlevels on dieselengines systems that meets all of the required outcomes
consistent timely completion of the testing, determination of the cause of and rectification of excessiveemissionlevels on diesel engine systems that safely, effectively and efficiently meets the required outcomes
Context of and specific resources for assessment
This unit must be assessed in the context of the work environment. Where personal safety or environmental damage are limiting factors, assessment may occur in a simulated environment provided it is realistic and sufficiently rigorous to cover all aspects of workplace performance, including task skills, task management skills, contingency management skills and job role environment skills.
The assessment environment should not disadvantage the participant. For example, language, literacy and numeracy demands of assessment should not be greater than those required on the job.
Customisation of assessment and delivery environment to sensitively accommodate cultural diversity.
Aboriginal people and other people from a non English speaking background may have second language issues.
Assessment of this competency requires typical resources normally used in a resources and infrastructure sector environment. Selection and use of resources for particular worksites may differ due to the site circumstances.
Where applicable, physical resources should include equipment modified for people with disabilities.
Access must be provided to appropriate learning and/or assessment support when required.
Method of assessment
This unit may be assessed in a holistic way with other units of competency. The assessment strategy for this unit must verify required knowledge and skill and practical application using more than one of the following assessment methods:
written and/or oral assessment of the candidate’s required knowledge
observed, documented and/or first hand testimonial evidence of the candidate’s:
implementation of appropriate requirement, procedures and techniques for the safe, effective and efficient achievement of required outcomes
consistently achieving the required outcomes
first hand testimonial evidence of the candidate:
working with others to undertake and complete the testing, determination of the cause of and rectification of excessive emissionlevels on diesel engine systems
Guidance information for assessment
Consult the SkillsDMC User Guide for further information on assessment including access and equity issues.