NZQA Expiring unit standard
3395 version 4
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Title
Hard face automotive components using oxy-acetylene
Level
4
Credits
2
Purpose
This unit standard is for people in the automotive repair
industry. People credited with this unit standard are able to
demonstrate knowledge of oxy-acetylene hard facing
applications, and hard face automotive components using oxyacetylene.
Classification
Motor Industry > Automotive Workshop Engineering
Available grade
Achieved
Entry information
Unit 913, Use the oxy-acetylene process for welding and allied
uses in the motor industry, or demonstrate equivalent
knowledge and skills.
Critical health and
safety prerequisites
Explanatory notes
1
The following legislation and amendments are required to be consulted and followed
where applicable:
– Health and Safety in Employment Act, 1992.
2
Reference to suitable equipment and material means industry approved equipment
and material that are recognised within the industry as being the most suited to
complete the task to a professional and competent manner with due regard to safe
working practices.
Outcomes and evidence requirements
Outcome 1
Demonstrate knowledge of oxy-acetylene hard facing applications.
Evidence requirements
1.1
Types and grades of hard facing materials used on automotive components are
defined.
Range
cobalt alloys, chromium alloys, tungsten alloys.
NZ Motor Industry Training Organisation
(Incorporated)
SSB Code 101542
 New Zealand Qualifications Authority 2016
NZQA Expiring unit standard
1.2
Types of metal that can be hard faced are identified.
Range
1.3
steel, cast iron, malleable cast iron.
Reasons for hard facing automotive components are identified.
Range
1.4
3395 version 4
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increasing service life, high operating temperatures, hammering of
parts, where wear is excessive through operating conditions.
The process of hard facing automotive components is described according to
welding manufacturer’s manual instructions.
Range
using hard facing rod, powder spraying.
Outcome 2
Hard face automotive components using oxy-acetylene.
Range
gas fusion welding using hard facing materials, powder spraying.
Evidence requirements
2.1
Safety precautions are followed throughout the hard facing process.
Range
safety of the operator, safety of the equipment, safety of nearby
personnel.
2.2
Suitable equipment and material are selected and used that enable the job to
be carried out according to welding equipment manufacturer's instructions.
2.3
The automotive component is prepared for hard facing.
Range
2.4
overlaying – grinding back the component surface, cleanliness;
powder spraying: base metal rough surface for a mechanical
bond, cleanliness.
The hard facing operation is completed so that the completed deposit has
adhered to the base metal to the thickness determined by the original
component dimensions, absence of cratering and porosity, and no surface
cracking.
Replacement information
This unit standard and unit standard 2310 have been
replaced by unit standard 24374 and unit standard
24375.
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
3395 version 4
Page 3 of 3
Status information and last date for assessment for superseded versions
Process
Version Date
Last Date for Assessment
Registration
1
27 February 1995
31 December 2016
Review
2
21 February 1999
31 December 2016
Review
3
20 March 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