4171 version 6
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Level 5
Credits 20
Purpose People credited with this unit standard are able to: prepare a mule spinning machine maintenance schedule; carry out routine maintenance on a mule spinning frame; rectify mule spinning frame mechanism faults; and identify sub-standard spinning performance.
Subfield Textiles Manufacture
Domain
Status
Status date
Date version published
Planned review date
Entry information
Woollen Yarn Processing
Registered
23 April 2008
23 April 2008
31 December 2013
Prerequisites: Unit 4169, Spin yarn on a mule spinning machine , and Unit 4170, Set up a mule spinning machine to spin yarn , or demonstrate equivalent knowledge and skills.
Accreditation Evaluation of documentation and visit by NZQA and industry.
Standard setting body (SSB) Competenz
Accreditation and Moderation Action Plan (AMAP) reference 0030
This AMAP can be accessed at http://www.nzqa.govt.nz/framework/search/index.do.
Special notes
1 Workplace productivity and quality requirements must be met.
2 Performance of the elements must comply with the Health and Safety in Employment
Act 1992.
3 Workplace procedures refer to the verbal or documented procedures for performing work activities and include health and safety, operational, environmental, and quality management requirements. They may refer to manuals, manufacturer's specifications, codes of practice, or policy statements.
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New Zealand Qualifications Authority 2020

4171 version 6
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Element 1
Prepare a mule spinning machine maintenance schedule.
Performance criteria
1.1 Schedule identifies mule components requiring routine maintenance in accordance with workplace procedures.
1.2 Schedule indicates timing and frequency of maintenance.
1.3 Procedures for maintenance are specified.
1.4
Element 2
Mule performance rates are assessed in terms of workplace productivity requirements.
Carry out routine maintenance on a mule spinning frame.
Performance criteria
2.1 Maintenance is carried in accordance with workplace procedures and maintenance schedule.
Range components identified in schedule, timing and frequency, procedures specified in schedule.
2.2
Element 3
Maintenance records are kept in accordance with workplace procedures.
Rectify mule spinning frame mechanism faults.
Range mechanisms are carriage chains, carriage wheels, spindle, quadrant rope.
Performance criteria
3.1 Mechanism is removed and/or disassembled according to manufacturer’s instructions to enable replacement or repair.
3.2 Mechanism components are assessed for replacement or repair in accordance with workplace procedures.
3.3
3.4
Replacement or repair is carried out in accordance with workplace procedures.
Mechanism is reassembled and/or replaced on mule spinning machine in accordance with workplace procedures.
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New Zealand Qualifications Authority 2020

4171 version 6
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3.5
Element 4
Repaired mechanism is reset and/or tuned to operate to machine specification.
Identify sub-standard spinning performance.
Performance criteria
4.1 Cause of sub-standard performance is identified and corrective action chosen in accordance with workplace procedures.
4.2 Corrective action is prioritised in relation to production schedule and resource constraints.
Range resource constraints – labour, parts, finance.
Please note
Providers must be 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 accredited by NZQA before they can register credits from assessment against unit standards.
Accredited providers and Industry Training Organisations assessing against unit standards must engage with the moderation system that applies to those standards.
Accreditation 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.
Comments on this unit standard
Please contact Competenz info@competenz.org.nz if you wish to suggest changes to the content of this unit standard.
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New Zealand Qualifications Authority 2020