NZQA Expiring unit standard
238 version 10
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Title
Remove and replace wheels and tyres, and balance wheels
Level
2
Credits
2
Purpose
This unit standard is for people who wish to enter or are
employed in the automotive repair industry. People credited
with this unit standard are able to: remove and replace a wheel;
interchange the wheels; determine the serviceability of a wheel
and tyre; and balance a wheel and tyre assembly.
Classification
Motor Industry > Tyres
Available grade
Achieved
Explanatory notes
The following legislation, regulations, and their amendments are required to be consulted
and followed where applicable:
Health and Safety in Employment Act, 1992;
Traffic Regulations, 1976;
Transport (Vehicle Standards) Regulations, 1990.
Outcomes and evidence requirements
Outcome 1
Remove and replace a wheel.
Evidence requirements
1.1
Safe working practices are observed throughout the task.
Range
personal safety, safety of others, no damage to equipment, vehicle
safety.
1.2
The hub supporting the wheel is raised and supported so that the wheel is clear
of the ground and the vehicle cannot slip.
1.3
The wheel is removed without damage to the vehicle, wheel, and threads of the
wheel nuts and studs.
1.4
A replacement wheel and tyre combination is fitted of the same type and size as
the one removed, and the nuts and studs tightened to the torque specified by
the vehicle manufacturer.
NZ Motor Industry Training Organisation
(Incorporated)
SSB Code 101542
 New Zealand Qualifications Authority 2016
NZQA Expiring unit standard
1.5
238 version 10
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The support is removed and the vehicle lowered without damage to the vehicle.
Outcome 2
Interchange the wheels.
Evidence requirements
2.1
Safe working practices are observed throughout the task.
Range
2.2
personal safety, safety of others, no damage to equipment, vehicle
safety.
The interchangeability of the wheels and tyres is determined.
Range
matching type and size of wheels and tyres, matching tyres by
amount of wear.
2.3
The play and roughness of the wheel bearings are checked, and if beyond
manufacturer's specifications, reported to the supervisor.
2.4
The wheels are removed, repositioned, and refitted in accordance with the
servicing schedule and vehicle manufacturer's specifications.
Outcome 3
Determine the serviceability of a wheel and tyre.
Evidence requirements
3.1
Safe working practices are observed throughout the task.
Range
personal safety, safety of others, no damage to equipment, vehicle
safety.
3.2
The tyre condition is checked, and its compliance with the Traffic Regulations is
determined.
3.3
A tyre and tube are removed from the wheel rim without damage to the tyre,
tube, and wheel.
3.4
The suitability of a tyre, tube, wheel, and valve for further use is determined.
Range
suitable if no damage, suitable if repairable, not suitable if any
irreparable damage.
NZ Motor Industry Training Organisation
(Incorporated)
SSB Code 101542
 New Zealand Qualifications Authority 2016
NZQA Expiring unit standard
238 version 10
Page 3 of 4
Outcome 4
Balance a wheel and tyre assembly.
Evidence requirements
4.1
Safe working practices are observed throughout the task.
Range
personal safety, safety of others, no damage to equipment.
vehicle safety.
4.2
The necessity for wheel balance is established from the supervisor.
4.3
The dynamic balance of the wheel assembly is checked and adjusted to bring
the balance within acceptable limits as detailed by the balancer manufacturer.
Replacement information
This unit standard and unit standard 3863 have been
replaced by unit standard 21722 and unit standard
21869.
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
28 February 1993
31 December 2016
Review
2
4 August 1995
31 December 2016
Revision
3
30 October 1997
31 December 2016
Revision
4
28 May 1998
31 December 2016
Review
5
20 December 1998
31 December 2016
Revision
6
13 March 2001
31 December 2016
Revision
7
16 October 2003
31 December 2016
Rollover
8
25 July 2006
31 December 2016
Rollover
9
19 November 2010
31 December 2016
Rollover
10
20 November 2015
31 December 2020
Consent and Moderation Requirements (CMR) reference
0014
This CMR can be accessed at http://www.nzqa.govt.nz/framework/search/index.do.
NZ Motor Industry Training Organisation
(Incorporated)
SSB Code 101542
 New Zealand Qualifications Authority 2016
NZQA Expiring unit standard
238 version 10
Page 4 of 4
Please note
Providers must be granted consent to assess against standards (accredited) by NZQA, or
an inter-institutional body with delegated authority for quality assurance, before they can
report credits from assessment against unit standards or deliver courses of study leading
to that assessment.
Industry Training Organisations must be granted consent to assess against standards by
NZQA before they can register credits from assessment against unit standards.
Providers and Industry Training Organisations, which have been granted consent and
which are assessing against unit standards must engage with the moderation system that
applies to those standards.
Consent requirements and an outline of the moderation system that applies to this
standard are outlined in the Conesnt and Moderation Requirements (CMR). The CMR
also includes useful information about special requirements for organisations wishing to
develop education and training programmes, such as minimum qualifications for tutors and
assessors, and special resource requirements.
NZ Motor Industry Training Organisation
(Incorporated)
SSB Code 101542
 New Zealand Qualifications Authority 2016