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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 working with:

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

high pressure and high temperature steering system fluids

environmental requirements, including procedures for trapping, storing and disposing of hydraulic fluid released from steering and suspension systems.

Analytical and evaluative methodology must include:

diagnostic process, sequence, tests and testing equipment.



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 steering and suspension systems, including procedures for working with:

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

high pressure and high temperature steering system fluids

environmental requirements, including procedures for trapping, storing and disposing of hydraulic fluid released from steering and suspension systems

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

design and planning of diagnostic procedures of heavy commercial vehicle steering and suspension system faults, including procedures for diagnosing:

hydraulic faults

mechanical faults

pneumatic faults

electrical faults

procedures for analysing and evaluating heavy commercial vehicle steering and suspension system faults, including:

system failure analysis

component failure analysis

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

steering system, including:

steering system theory, including steering angles

mechanical steering system components

power assisted steering system

suspension system, including:

spring suspension

air suspension

influences of trailer operations on the heavy commercial vehicle:

steering performance

suspension performance

associated vehicle systems and their impact on steering and suspension system operation, including trailers and loads

testing procedures for heavy commercial vehicle steering and suspension systems, including:

steering component wear

power assisted steering pressures and operation

suspension component wear

wheel and chassis alignment

axle parallelism

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

procedures for documenting and reporting the analysis and evaluation process

requirements of Australian Design Rules (ADRs) relating to heavy commercial vehicle steering and suspension systems.