NZQA Expiring unit standard
Title
5771 version 6
Page 1 of 4
Use and maintain a metal-arc gas shield (MIG) welding plant in the motor industry
4 Credits 5 Level
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 a MIG welder; MIG weld steel; and maintain a
MIG welder.
Classification
Available grade
Entry information
Motor Industry > Panelbeating
Achieved
Recommended skills and knowledge
Unit 5743, Identify the characteristics, uses, and the effect of heat on metals in the motor industry , or demonstrate equivalent knowledge and skills.
Explanatory notes
1 The following legislation and regulations (and subsequent amendments) are relevant to this unit standard and must be followed where applicable:
Health and Safety in Employment Act, 1992.
2 When the evidence requirements state 'company guidelines', it is assumed that it is to the same standard as the product and vehicle manufacturers' standards.
3 Unit standard applies to welding steel in the, overhead, vertical up and down, and horizontal positions.
NZ Motor Industry Training Organisation
(Incorporated)
SSB Code 101542

New Zealand Qualifications Authority 2020

NZQA Expiring unit standard 5771 version 6
Page 2 of 4
Outcome 1
Demonstrate knowledge of a MIG welder.
Evidence requirements
1.1 Principle of how a MIG welder works is identified according to manufacturer's specifications.
Range producing heat for welding, the wire drive system operation, transferring the current from the power source and producing the arc, gas shielding, earthing principles.
1.2 Power supply and capacity ratings are identified according to manufacturer's specifications.
Range amperage rating, duty cycle.
1.3 Shielding gases used for different metals are identified according to manufacturer's specifications.
Range argon, helium, oxygen, carbon dioxide CO 2; coated steel, mild steel, high strength steel (HSS).
1.4 Electrode wires are identified according to manufacturer's specifications.
Range metal gauge; coated steel, mild steel, high strength steel (HSS).
1.5 Types of joints used when welding damaged vehicles are identified according to vehicle manufacturer's specifications and company guidelines.
Range lap joint, offset butt joint, butt joint with insert, plug.
1.6 Effects of MIG welding on vehicle electronics are identified according to manufacturer's specifications.
1.7 Safety precautions are identified according to the manufacturer's specifications and company guidelines.
Range personal safety; safety of other people; vehicle safety; workshop safety; environmental safety; tool, equipment, and machine safety.

New Zealand Qualifications Authority 2020 NZ Motor Industry Training Organisation
(Incorporated)
SSB Code 101542

NZQA Expiring unit standard
Outcome 2
MIG weld steel.
Range butt, butt with gap, tack, fillet, lap, and plug welds.
5771 version 6
Page 3 of 4
Evidence requirements
2.1 MIG welder is set up according to manufacturer's specifications and company guidelines.
2.2 Metal is prepared for welding according to manufacturer's specifications and company policy.
Range no contaminants on the surface to be welded, abutting ends square, suitable gap between joint edges, metal positioned securely, holes drilled for plug welding, anti-corrosion primer.
2.3 Heat shielding of adjacent vehicles, tools, and machine components is carried out according to company guidelines, and they are not damaged.
2.4 The metal is welded in position according to the manufacturer's specifications and company guidelines.
Range no undercutting, no sign of porosity, full penetration, consistent width and height, neat appearance, maximum of 3.00 mm distortion.
2.5 Safe working practices are carried out throughout the task.
Range personal safety; safety of other people; vehicle safety; workshop safety; environmental safety; tool, equipment, and machine safety.
2.6 Welding equipment is shut down after use and put away according to manufacturer's instructions and company guidelines, with no damage to equipment, electronics, or injury to people.
Range gas shut off, power leads disconnected, plant stored in a safe place.
Outcome 3
Maintain a MIG welder.
Evidence requirements
3.1 Safe working practices are carried out throughout the task.
Range personal safety; safety of other people; vehicle safety; workshop safety; environmental safety; tool, equipment, and machine safety.

New Zealand Qualifications Authority 2020 NZ Motor Industry Training Organisation
(Incorporated)
SSB Code 101542

NZQA Expiring unit standard
3.2
5771 version 6
Page 4 of 4
MIG welder is maintained according to manufacturer's specifications.
Replacement information This unit standard and unit standard 914 have been replaced by unit standard 23992.
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 29 January 1996 31 December 2016
Review
Revision
2
3
20 December 1998
16 October 2003
31 December 2016
31 December 2016
Review
Rollover
4
5
26 November 2007
19 November 2010
31 December 2020
31 December 2020
Rollover 6 22 August 2014 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
.
Please note
Providers must be granted consent to assess against standards (accredited) by NZQA, 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.
Requirements for consent to assess and an outline of the moderation system that applies to this standard are outlined in the Consent 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 2020