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Elements and Performance Criteria

1. Carry out wheel alignment pre-checks
   • Job requirements are determined from workplace instructions
   • Alignment pre-check information is sourced and interpreted
   • Hazards associated with the work are identified and risks are managed
   • Alignment pre-checks of vehicle wheels, steering and suspension condition are carried out according to manufacturer specifications, workplace procedures and safety requirements
   • Faults are identified and reported according to workplace procedures as necessary
2. Carry out vehicle wheel alignment activities
   • Vehicle wheel alignment specifications are sourced and interpreted
   • Wheel alignment measuring equipment is connected to vehicle according to manufacturer specifications and workplace procedures
   • Wheel alignment is carried out without causing damage to components or systems, and readings are recorded
   • Corrective adjustments are carried out according to workplace procedures and safety requirements, and within manufacturer specifications
   • Wheel alignment is re-checked to confirm accuracy of adjustments
   • Post-adjustment wheel alignment readings are recorded and reported according to workplace procedures
3. 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
4. Carry out wheel alignment pre-checks
   • Job requirements are determined from workplace instructions
   • Alignment pre-check information is sourced and interpreted
   • Hazards associated with the work are identified and risks are managed
   • Alignment pre-checks of vehicle wheels, steering and suspension condition are carried out according to manufacturer specifications, workplace procedures and safety requirements
   • Faults are identified and reported according to workplace procedures as necessary
5. Carry out vehicle wheel alignment activities
   • Vehicle wheel alignment specifications are sourced and interpreted
   • Wheel alignment measuring equipment is connected to vehicle according to manufacturer specifications and workplace procedures
   • Wheel alignment is carried out without causing damage to components or systems, and readings are recorded
   • Corrective adjustments are carried out according to workplace procedures and safety requirements, and within manufacturer specifications
   • Wheel alignment is re-checked to confirm accuracy of adjustments
   • Post-adjustment wheel alignment readings are recorded and reported according to workplace procedures
6. 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.

Safety requirements must include:

work health and safety (WHS) and occupational health and safety (OHS) requirements, including procedures for using air jacks.

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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:

align all four wheels of:

one front wheel drive vehicle

one rear wheel drive vehicle

above wheel alignment must include adjusting the following steering angles:

camber

caster

steering axis inclination (SAI)

toe (toe-in and toe-out)

toe-out on turns.

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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 light vehicle wheel alignment, including procedures for using air jacks

application, purpose and operating principles of steering geometry and wheel alignment angles, including:

Ackermann principle of steering

camber

caster

SAI

thrust angle

toe-in and toe-out

toe-out on turns

included angle

point of intersection

scrub radius

vehicle pre-alignment inspection procedures, including:

analysing tyre wear

determining wheel run-out

determining vehicle height

checking frame alignment

types and operation of wheel alignment systems, including:

laser aligners

visual aligners

camera aligners

relationships between fault symptoms and component defects

procedures for measuring and adjusting steering angles, including:

camber

caster

steering axis inclination

thrust angle

toe

toe-out on turns

procedures for carrying out four-wheel alignments

steering system reset procedures to calibrate on-board system sensors with the steering geometry.

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