Elements and Performance Criteria

Compliance and other documentation may include:
certification documentation, or
approval documentation
legislative, organisation and site requirements and procedures
manufacturer’s specifications and guidelines
Australian Standards, including: AS/NZS3584 and AS 4291
codes of practice
Employment and Workplace Relations legislation
Equal Employment Opportunity and Disability Discrimination legislation
Inspection is to include:
checking for coolant leaks in radiator (core and tanks) and radiator hoses
visually check that the coolant level is correct
checking for coolant leaks in water pumps, thermostats (housing) or from hoses associated with the jacket water cooling of air compressors, manifolds, manifold/conditioner adaptor pipes, etc
checking that the hoses are in a good condition, correctly fitted, clamped and restrained
checking that the radiator core is clean
Testing may include:
checking the proper operation and function of the coolant loss detection sensor, and record the time taken to cause the engine to shut down
Checking the proper operation and function of the coolant over-temperature sensor, and record the coolant temperature at which the engine shut down.NOTE Testing this sensor by defeating other sensors and overheating the diesel engine system may be hazardous or cause damage to the diesel engine system. It is recommended that the sensor be removed from the engine and tested in heated water while remaining connected to the engine shutdown system.
Maintenance is:
the combination of actions carried out to retain a diesel engine system in, or to restore it to, conditions in which it is able to meet the requirements of the relevant specification and perform its required function
Maintenance is to include:
service
adjust
replace
Maintenance may include:
repair
overhaul
modify
draining and replacing the engine coolant and ensuring that the correct coolant formulation is used
Cooling systems may include:
exhaust manifolds
compressors or turbo chargers
piping
joints
exhaust flame traps
exhaust filters
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, and
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
that guards are in place and secure
engine oil level is correct
conduct Exhaust Conditioner/Flametrap, low-water, shutdown tests
Hazardous and emergency situations may include:
working alone
personal injury
fire
explosions
electrical
noise
dust
environmental
chemical
Diagnose faultsmay include:
Root cause analysis
Troubleshooting techniques
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 inspection, testing and maintenance of cooling systems on diesel engine systems.
Implementation of requirements, procedures and techniques for the safe, effective and efficient completion of the inspection, testing and maintenance of cooling systems on diesel engine systems
Working with others to undertake and complete the inspection, testing and maintenance of cooling systems on diesel engine systems that meets all of the required outcomes.
Consistent timely completion of the inspection, testing and maintenance of cooling systems 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 inspection, testing and maintenance of cooling systems on diesel engine systems
Guidance information for assessment
Consult the SkillsDMC User Guide for further information on assessment including access and equity issues.