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Elements and Performance Criteria

  1. Identify and confirm the work requirement
  2. Prepare to carry out diagnosis
  3. Apply diagnostic procedures
  4. Complete work processes
  5. Identify and confirm the work requirement
  6. Prepare to carry out diagnosis
  7. Apply diagnostic procedures
  8. Complete work processes

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 lifting, supporting and manual handling heavy commercial vehicle transmission and driveline systems

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


Performance Evidence

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

diagnose a complex fault in the:

transmission system of a heavy commercial vehicle

driveline system of a different heavy commercial vehicle

transmission or driveline system of a third heavy commercial vehicle

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.


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 heavy commercial vehicle transmission and driveline systems, including procedures for lifting, supporting and manual handling heavy commercial vehicle transmission and driveline systems

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

types of complex faults relating to heavy commercial vehicle 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 heavy commercial vehicle transmission and drivelines, including:

automatic transmissions

manual and automated manual transmissions

Hookes-type joints

drive shafts

final drives

testing procedures for heavy commercial vehicle transmission and driveline systems, including procedures for:

vehicle dynamic and static testing

abnormal noise analysis

transmission oil pressure tests

sources of fluid leaks

driveline angle measurement

types, functions, operation and limitations of diagnostic testing equipment required to diagnose complex faults in heavy commercial vehicle 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

vehicle continuous and non-continuous monitored systems

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