NZQA Expiring unit standard
9074 version 4
Page 1 of 4
Title
Demonstrate knowledge of, and rectify faults in, motor vehicle tyres
and wheels
Level
3
Credits
7
Purpose
This unit standard is for people who work in the motor industry.
Those credited with this unit standard are able to: demonstrate
knowledge of vehicle tyre standards; demonstrate knowledge
of vehicle tyres, types, and sizes; diagnose and rectify
abnormalities in vehicle tyre conditions; demonstrate
knowledge of vehicle wheels and rectify wheel defects.
Classification
Motor Industry > Tyres
Available grade
Achieved
Explanatory notes
1
The following legislation and regulations and their subsequent amendments are
relevant to this unit standard and must be followed where applicable:
– Health and Safety in Employment Act, 1992;
– Transport (Vehicle Standards) Regulations, 1990 and Land Transport Guide to
Vehicle Standards;
– Traffic Regulations, 1976.
2
When the evidence requirements state company policy, it is assumed that it is to the
same standard as the vehicle and tyre manufacturers' repair standards.
Outcomes and evidence requirements
Outcome 1
Demonstrate knowledge of vehicle tyre standards.
Evidence requirements
1.1
NZ tyre standards are identified.
Range
1.2
new, used, imported;
load capacity, tread pattern, inflation limits, speed rating.
NZ standard for regrooving tyres is identified.
Range
vehicle types, tyre types.
NZ Motor Industry Training Organisation
(Incorporated)
SSB Code 101542
 New Zealand Qualifications Authority 2016
NZQA Expiring unit standard
1.3
9074 version 4
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Standards for defective tyres are identified.
Range
cuts, exposed, worn, and damaged cords, bulges in side wall,
repairs, separations.
Outcome 2
Demonstrate knowledge of vehicle tyres, types, and sizes.
Evidence requirements
2.1
Tyre types and sizes are identified according to tyre manufacturer's
specifications.
Range
2.2
Side wall markings are identified according to tyre manufacturer's specifications.
Range
2.3
tyre circumferences, tyre profiles, air pressure, tyre section width,
tyre to rim match, aspect ratio, overall diameters, static loaded
radius.
Tyre valve types are identified.
Range
2.7
construction – cross-ply/bias-ply, belted cross-ply/bias-ply, radialply;
components – casing ply, fabric belts, steel belts, overlay, tread,
sidewall, beads, apexes, chafers.
Dynamic rolling circumference characteristics are identified.
Range
2.6
pattern direction; angle of pattern; length of pattern; pattern
design – standard, asymmetrical, directional.
Tyre construction and component parts are identified.
Range
2.5
load rating, speed rating, date of manufacture, size, manufacturer,
tyre type.
Types of tyre tread patterns are identified according to tyre manufacturer's
specifications.
Range
2.4
tubed, tubeless, crossply, radial ply, fabric and steel belted;
car, light and heavy commercial.
rubber, metal, tube, tubeless;
car, light and heavy commercial.
Purpose of driving and directional tyres are identified.
Range
driving tyres compared to non-driving standard, asymmetrical and
directional tyres;
design, wear characteristics.
NZ Motor Industry Training Organisation
(Incorporated)
SSB Code 101542
 New Zealand Qualifications Authority 2016
NZQA Expiring unit standard
9074 version 4
Page 3 of 4
Outcome 3
Diagnose and rectify tyre abnormalities in vehicle tyre conditions.
Evidence requirements
3.1
Causes of abnormal tyre wear are identified and rectified according to vehicle
manufacturer's specifications and company policy.
Range
3.2
under inflation, over inflation, wheel alignment and suspension
geometry, accident damage, tyre size, tyre fitting, tyre rotation,
tyre not to specification, tyre damage, handling, mechanical
characteristics of the vehicle.
The effects tyres can have on vehicle handling are identified and any
abnormalities are rectified according to vehicle manufacturer's specifications
and company policy.
Range
air pressures relating to load and tyre manufacturer's
specifications, non-matching tyres, tyre defects, radial tyre pull,
uneven wear, tread depth, ply rating, type of tyre;
oversteer, understeer, straight ahead driving, slip angle.
Outcome 4
Demonstrate knowledge of vehicle wheels and rectify wheel defects.
Evidence requirements
4.1
Wheel types and sizes are identified.
Range
4.2
car, light and heavy commercial;
alloy, steel, wheel dimensions, wheel offset and effects, single and
2-3 piece rims, tube type, tubeless, spacesaver.
The effects wheels can have on vehicle handling are identified and any
abnormalities are rectified according to vehicle manufacturer's specifications
and company policy.
Range
wheel balance, wheel shape, accident damage, vibration, wheel
fitment, wheel nut torque.
Replacement information
This unit standard and unit standard 916 have been
replaced by unit standard 24457 and unit standard
24458.
This unit standard is expiring. Assessment against the standard must take place by
the last date for assessment set out below.
NZ Motor Industry Training Organisation
(Incorporated)
SSB Code 101542
 New Zealand Qualifications Authority 2016
NZQA Expiring unit standard
9074 version 4
Page 4 of 4
Status information and last date for assessment for superseded versions
Process
Version Date
Last Date for Assessment
Registration
1
25 November 1996
31 December 2016
Review
2
28 February 2001
31 December 2016
Review
3
25 January 2008
31 December 2016
Rollover
4
19 November 2010
31 December 2016
Accreditation and Moderation Action Plan (AMAP) reference
0014
This AMAP can be accessed at http://www.nzqa.govt.nz/framework/search/index.do.
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 Accreditation and Moderation Action Plan (AMAP). The
AMAP 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