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Elements and Performance Criteria

  1. Identify and confirm the work requirement
  2. Prepare for analysis and evaluation
  3. Carry out failure analysis
  4. Make recommendations
  5. Complete work processes
  6. Identify and confirm the work requirement
  7. Prepare for analysis and evaluation
  8. Carry out failure analysis
  9. Make recommendations
  10. 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:

handling and controlling brake dust and brake fluids

working with stored energy in springs, air springs, torsion bars and air storage

environmental requirements, including procedures for trapping, storing and disposing of brake dust and brake fluid released from braking systems.

Analytical and evaluative methodology must include:

diagnostic process, sequence, tests and testing equipment.


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:

analyse and evaluate a fault in the braking systems of three different heavy commercial vehicles

the above faults must be in two of the following braking systems:

pneumatic system

air over hydraulic system

hydraulic system

electronic system

auxiliary braking system.


Knowledge Evidence

Individuals must be able to demonstrate knowledge of:

work health and safety (WHS) and occupational health and safety (OHS) requirements relating to analysing and evaluating faults in heavy commercial vehicle braking systems, including procedures for:

handling and controlling brake dust and brake fluids

working with stored energy in springs, air springs, torsion bars and air storage

environmental requirements, including procedures for trapping, storing and disposing of brake dust and brake fluid released from braking systems

principles and processes involved in planning and implementing analysis and evaluation of braking system faults

design and planning of diagnostic procedures of heavy commercial vehicle braking systems, including procedures for diagnosing:

hydraulic faults

mechanical faults

pneumatic faults

electrical faults

types, functions, operation and limitations of the following systems and components:

foundation brakes

friction materials

anti-lock braking system (ABS)

electronic braking system (EBS)

pneumatic braking system

pneumatic and electronic control circuits and valves

hydraulic braking system

air over hydraulic braking system

heavy trailer braking system

auxiliary braking systems (compression and transmission retarders)

testing procedures for heavy commercial vehicle braking systems, including:

brake timing and balancing

air supply performance

vehicle stopping distance

types, functions, operation and limitations of diagnostic testing equipment required to analyse and evaluate faults in braking systems

procedures for documenting and reporting the analysis and evaluation process required to analyse and evaluate faults in braking systems

requirements of Australian Design Rules (ADRs) relating to heavy commercial vehicle braking systems.