23978 Demonstrate knowledge of chassis alignment system ...
|Title |Demonstrate knowledge of chassis alignment system equipment, measuring systems, and structural damage on a vehicle |
|Level |4 |Credits |4 |
|Purpose |This theory-based unit standard is for people who work in the collision repair industry. People |
| |credited with this unit standard are able to demonstrate knowledge of body and chassis alignment |
| |systems, body and chassis measuring systems, and structural damage on a vehicle. |
|Classification |Motor Industry > Collision Repair |
|Available grade |Achieved |
Guidance Information
1 Evidence presented for assessment against this unit standard must be consistent with safe working practices and be in accordance with applicable manufacturer’s specifications, service information, company and legislative requirements (this includes the knowledge and/or use of suitable tools and equipment).
2 Legislation, regulations and/or industry standards relevant to this unit standard include but are not limited to the current version of including updated amendments to, and replacements of – Health and Safety at Work Act 2015; Land Transport Rule: Vehicle Repair 1998, Rule 34001.
3 Land Transport Rules are available online at .
4 Definitions
Company requirements refer to instructions to staff on policy and procedures which are documented in memo or manual format and are available in the workplace. These requirements include but are not limited to – company specifications and procedures, work instructions, manufacturer specifications, product quality specifications and legislative requirements.
Service information may include but is not limited to – technical information of a vehicle, machine, or product detailing operation; installation and servicing procedures; manufacturer instructions and specifications; technical terms and descriptions; and detailed illustrations. This may be accessed from the manufacturer.
Suitable tools and equipment means industry approved tools and equipment that are recognised within the industry as being the most suited to complete the task in a professional and competent manner with due regard to safe working practices.
Outcomes and performance criteria
Outcome 1
Demonstrate knowledge of body and chassis alignment systems.
Performance criteria
1.1 Purposes of body and chassis alignment systems are identified.
1.2 Types of alignment systems are described.
Range includes but is not limited to – in-floor straightening systems, bench straightening systems, rack straightening systems, pulling towers.
1.3 Types of pulling methods are described.
Range includes but is not limited to – single pull, multiple pull, stress relieving.
1.4 Safety requirements when using alignment systems are identified.
1.5 The importance of using manufacturer specifications when using body aligning equipment is explained.
Outcome 2
Demonstrate knowledge of body and chassis measuring systems.
Performance criteria
2.1 Types of measuring systems are described
Range includes but is not limited to five of – tape measure, trammel gauge, centring gauges, dedicated jigs, universal measuring systems, laser systems, computerised systems.
2.2 Purposes of measuring systems are described.
Range unibody alignment, chassis alignment.
2.3 Types of measurements used for body and chassis alignment are described
Range datum, centre line, symmetrical and asymmetrical dimensions, upper body dimensions, three dimensional checking.
Outcome 3
Demonstrate knowledge of structural damage on a vehicle.
Performance criteria
3.1 Structural panels are identified.
Range includes but is not limited to identification using two of – manufacturer body manuals or computer-based information, material safety data sheets, manufacturer body diagrams.
3.2 Purposes of structural panels on a vehicle are described.
Range safety, impact absorption.
3.3 The effects of structural damage on a vehicle body are explained.
Range body alignment, panel alignment, alignment of mechanical parts, glass alignment, safety, body stress.
3.4 Purposes of body measuring points are described.
Range impact repair, accurate body measurement.
3.5 Methods of body alignment are described.
Range pull angles and force, use of heat.
|Replacement information |This unit standard was replaced by unit standard 31995 and unit standard 31996. |
| |This unit standard and unit standard 23979 replaced unit standard 5745. |
This unit standard is expiring. Assessment against the standard must take place by the last date for assessment set out below.
Status information and last date for assessment for superseded versions
|Process |Version |Date |Last Date for Assessment |
|Registration |1 |26 November 2007 |31 December 2018 |
|Review |2 |21 April 2016 |31 December 2022 |
|Review |3 |23 July 2020 |31 December 2022 |
|Consent and Moderation Requirements (CMR) reference |0014 |
This CMR can be accessed at .
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