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Elements and Performance Criteria

1. Identify and confirm the work requirement
   • Nature and objective of diagnostic requirements are determined from workplace instructions
   • Existence of fault in mobile plant transmission or driveline is confirmed from direct or indirect evidence
   • Hazards associated with the work are identified and risks are managed according to workplace procedures and safety and environmental requirements
2. Prepare to carry out diagnosis
   • Manufacturer specifications and other technical information for transmission or driveline system are accessed and interpreted
   • Diagnostic procedures and options are identified
   • Diagnostic method sequence, tests and testing processes are identified and selected from the range of available options
   • Testing equipment is obtained and prepared according to manufacturer specifications and workplace procedures
   • Tools, equipment and materials required to support the diagnostic process are identified, selected and prepared for use
3. Apply diagnostic procedures
   • Selected diagnostic process is followed and testing is carried out according to manufacturer specifications, workplace procedures and safety and environmental requirements
   • Diagnostic findings are verified, as required, by using reliable alternative or optional process according to manufacturer specifications and workplace procedures
   • Conclusions are drawn from findings and documented according to workplace procedures, including recommendations for necessary repairs
   • Conclusions are provided to appropriate personnel or customer to confirm further action to be taken
4. Complete work processes
   • Mobile plant is presented ready to be repaired or returned to the customer
   • Work area is cleaned, waste and non-recyclable materials are disposed of, and recyclable material is collected
   • Tools and equipment are checked and stored according to workplace procedures
5. Identify and confirm the work requirement
   • Nature and objective of diagnostic requirements are determined from workplace instructions
   • Existence of fault in mobile plant transmission or driveline is confirmed from direct or indirect evidence
   • Hazards associated with the work are identified and risks are managed according to workplace procedures and safety and environmental requirements
6. Prepare to carry out diagnosis
   • Manufacturer specifications and other technical information for transmission or driveline system are accessed and interpreted
   • Diagnostic procedures and options are identified
   • Diagnostic method sequence, tests and testing processes are identified and selected from the range of available options
   • Testing equipment is obtained and prepared according to manufacturer specifications and workplace procedures
   • Tools, equipment and materials required to support the diagnostic process are identified, selected and prepared for use
7. Apply diagnostic procedures
   • Selected diagnostic process is followed and testing is carried out according to manufacturer specifications, workplace procedures and safety and environmental requirements
   • Diagnostic findings are verified, as required, by using reliable alternative or optional process according to manufacturer specifications and workplace procedures
   • Conclusions are drawn from findings and documented according to workplace procedures, including recommendations for necessary repairs
   • Conclusions are provided to appropriate personnel or customer to confirm further action to be taken
8. Complete work processes
   • Mobile plant is presented ready to be repaired or returned to the customer
   • Work area is cleaned, waste and non-recyclable materials are disposed of, and recyclable material is collected
   • Tools and equipment are checked and stored according to workplace procedures

Range Statement

This section specifies work environments and conditions that may affect performance. Essential operating conditions that may be present (depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts) are included. Bold italicised wording, if used in the performance criteria, is detailed below.

Safety and environmental requirements must include:

work health and safety (WHS) and occupational health and safety (OHS) requirements, including procedures for: tagging out and isolating machines, and wheel chocking working with rotating shaft hazards environmental requirements, including procedures for trapping, storing and disposing of oils and fluids released from transmission and driveline systems.

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Performance Evidence

Before competency can be determined, individuals must demonstrate they can perform the following according to the standards defined in this unit’s elements, performance criteria, range of conditions and foundation skills:

diagnose a complex fault in the:

transmission of a mobile plant machine

driveline of a different mobile plant machine

transmission or driveline of a third mobile plant machine

the above diagnosis must involve two of the following types of complex faults:

an intermittent fault

a fault that affects more than one system

a fault introduced as a result of a system repair

an indirect fault caused by the influence of external systems.

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Knowledge Evidence

Individuals must be able to demonstrate knowledge of:

work health and safety (WHS) and occupational health and safety (OHS) requirements relating to diagnosing complex faults in mobile plant transmission and driveline systems, including procedures for:

tagging out and isolating machines, and wheel chocking

working with rotating shaft hazards

environmental requirements, including procedures for trapping, storing and disposing of oils and fluids released from transmission and driveline systems

types of complex faults relating to mobile plant transmission and driveline systems, including:

intermittent

multi-system

introduced as a result of system repair

indirect, caused by the influence of external systems

types, function and operation of mobile plant transmission and driveline systems, including:

transmissions

drivelines

final drives

testing procedures for mobile plant transmission and driveline systems, including:

transmission and driveline performance test

abnormal noise analysis

component wear analysis

transmission oil pressure test

sources of fluid leaks

types, functions, operation and limitations of diagnostic testing equipment required to diagnose complex faults in mobile plant transmission and driveline systems

procedures for accessing and interpreting scan tool system data, including:

diagnostic trouble codes (DTCs), including:

conditions that set the DTCs

conditions for running DTCs

live data

freeze frame data

waveforms

continuous and non-continuous monitored systems

methods and processes for documenting and reporting diagnostic findings and recommendations.

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