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Elements and Performance Criteria

1. Prepare to machine brake drums and brake disc rotors
   • Job requirements are determined from workplace instructions
   • Brake drum and disc rotor machining procedures and information are sourced and interpreted
   • Brake drums and brake disc rotors are measured and evaluated against manufacturer specifications according to workplace procedures
   • Machining options are analysed and those most appropriate to the circumstances are selected
   • Hazards associated with the work are identified and risks are managed
   • Tools and equipment, including disc and drum brake lathe, are selected and checked for serviceability
2. Carry out machining operations
   • Brake drums and brake disc rotors are prepared for machining according to workplace procedures and safety and environmental requirements
   • Brake drums and brake disc rotors are positioned in brake lathe according to manufacturer specifications and workplace procedures
   • Brake drums and brake disc rotors are machined according to manufacturer specifications, workplace procedures, and safety and environmental requirements
   • Brake drums and brake disc rotors are measured against manufacturer specifications according to workplace procedures
   • Brake drums and brake disc rotor machining is completed according to manufacturer specifications, workplace procedures, and safety and environmental requirements
   • Brake drums and brake disc rotors are visually evaluated to ensure safe operation according to workplace procedures
3. Complete work processes
   • Brake drums and brake disc rotors are presented ready for use or stored according to workplace procedures
   • 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
4. Prepare to machine brake drums and brake disc rotors
   • Job requirements are determined from workplace instructions
   • Brake drum and disc rotor machining procedures and information are sourced and interpreted
   • Brake drums and brake disc rotors are measured and evaluated against manufacturer specifications according to workplace procedures
   • Machining options are analysed and those most appropriate to the circumstances are selected
   • Hazards associated with the work are identified and risks are managed
   • Tools and equipment, including disc and drum brake lathe, are selected and checked for serviceability
5. Carry out machining operations
   • Brake drums and brake disc rotors are prepared for machining according to workplace procedures and safety and environmental requirements
   • Brake drums and brake disc rotors are positioned in brake lathe according to manufacturer specifications and workplace procedures
   • Brake drums and brake disc rotors are machined according to manufacturer specifications, workplace procedures, and safety and environmental requirements
   • Brake drums and brake disc rotors are measured against manufacturer specifications according to workplace procedures
   • Brake drums and brake disc rotor machining is completed according to manufacturer specifications, workplace procedures, and safety and environmental requirements
   • Brake drums and brake disc rotors are visually evaluated to ensure safe operation according to workplace procedures
6. Complete work processes
   • Brake drums and brake disc rotors are presented ready for use or stored according to workplace procedures
   • 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.

Safety and environmental requirements must include:

work health and safety (WHS) and occupational health and safety (OHS) requirements, including procedures for working safely with brake machining equipment environmental requirements, including procedures for trapping, storing and disposing of metal swarf produced during machining.

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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:

machine the four disc rotors of a four wheel disc brake system

machine the two brake drums of a rear drum brake system or all four brake drums of a four wheel drum brake 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 machining brake drums and brake disc rotors, including procedures for working safely with brake machining equipment

environmental requirements, including procedures for trapping, storing and disposing of metal swarf produced during machining

measuring and evaluation procedures for brake drums and brake disc rotors, including:

using vernier calipers, micrometers, brake drum micrometers and dial gauge indicators

visual inspection procedures for brake drums and brake disc rotors

application, purpose and operation of brake drum and brake disc rotor machining equipment, including:

off-vehicle machining

on-vehicle machining.

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