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Elements and Performance Criteria

1. Prepare to diagnose and repair heavy vehicle clutch system
   • Job requirements are determined from workplace instructions
   • Diagnostic information is sourced and interpreted
   • Diagnostic options are analysed and those most appropriate to the circumstances are selected
   • Hazards associated with the work are identified and risks are managed
   • Diagnostic tools and equipment are selected and checked for serviceability
2. Diagnose clutch system
   • Diagnostic tests are carried out according to manufacturer specifications, workplace procedures, and environmental and safety requirements
   • Faults are identified from diagnostic test results and causes of faults are determined
   • Diagnosis findings, including recommendations for necessary repairs or adjustments, are reported according to workplace procedures
3. Repair clutch system
   • Repair information is sourced and interpreted
   • Repair options are analysed and those most appropriate to the circumstances are selected
   • Repair tools, equipment and materials are selected and checked according to manufacturer procedures
   • Repairs and component replacements and adjustments are carried out according to manufacturer specifications, workplace procedures, and safety and environmental requirements, and without causing damage to components or systems
   • Post-repair testing is carried out according to workplace procedures to confirm fault rectification, and any further problems detected as having been introduced during the repair process are rectified
4. Complete work processes
   • Final inspection is made to ensure work is to workplace expectations and vehicle is presented ready for use
   • 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
   • Workplace documentation is processed according to workplace procedures
5. Prepare to diagnose and repair heavy vehicle clutch system
   • Job requirements are determined from workplace instructions
   • Diagnostic information is sourced and interpreted
   • Diagnostic options are analysed and those most appropriate to the circumstances are selected
   • Hazards associated with the work are identified and risks are managed
   • Diagnostic tools and equipment are selected and checked for serviceability
6. Diagnose clutch system
   • Diagnostic tests are carried out according to manufacturer specifications, workplace procedures, and environmental and safety requirements
   • Faults are identified from diagnostic test results and causes of faults are determined
   • Diagnosis findings, including recommendations for necessary repairs or adjustments, are reported according to workplace procedures
7. Repair clutch system
   • Repair information is sourced and interpreted
   • Repair options are analysed and those most appropriate to the circumstances are selected
   • Repair tools, equipment and materials are selected and checked according to manufacturer procedures
   • Repairs and component replacements and adjustments are carried out according to manufacturer specifications, workplace procedures, and safety and environmental requirements, and without causing damage to components or systems
   • Post-repair testing is carried out according to workplace procedures to confirm fault rectification, and any further problems detected as having been introduced during the repair process are rectified
8. Complete work processes
   • Final inspection is made to ensure work is to workplace expectations and vehicle is presented ready for use
   • 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
   • Workplace documentation is processed 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.

Diagnostic tests must include:	inspecting and evaluating clutch assembly components inspecting and evaluating clutch operating system testing stationary and mobile performance.
Safety requirements must include:	work health and safety (WHS) and occupational health and safety (OHS) requirements, including procedures for: using transmission lifting and supporting equipment controlling hazards associated with clutch dust and brake fluid.
Repair information must include procedures relating to:	removing, replacing and adjusting: clutch assemblies clutch operating systems.
Environmental requirements must include:	procedures for trapping, storing and disposing of clutch dust and brake fluid released from clutch systems.

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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 and repair a fault in one heavy vehicle clutch system, which must involve:

removing and refitting the heavy vehicle manual transmission

removing and replacing the clutch friction disc, clutch pressure plate assembly, and release bearing

diagnose and repair a fault in one heavy vehicle clutch operating system.

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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 and repairing heavy vehicle clutch systems, including procedures for:

using transmission lifting and supporting equipment

controlling hazards associated with clutch dust and brake fluid

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

application, purpose and operation of heavy vehicle clutch systems and components, including:

single-disc clutch assemblies

multi-disc clutch assemblies

coil spring clutches

diaphragm spring clutches

clutch brakes

flywheel

clutch operating systems, including:

mechanical

hydraulic

pneumatic

electronic

diagnostic testing procedures for heavy vehicle clutch systems, including:

inspecting and evaluating clutch assembly components

inspecting and evaluating clutch operating system

testing stationary and mobile clutch performance

repair procedures for heavy vehicle clutch systems, including procedures for:

clutch operating systems

removing and refitting clutch assembly

inspecting and evaluating clutch components

adjusting clutches

post-repair testing procedures for heavy vehicle clutch systems, including testing stationary or mobile performance.

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