17969 version 2
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Perform basic saw doctoring calculations
Level
2
Credits
5
Purpose
People credited with this unit standard are able to perform basic calculations:
used in saw sharpener operations and stretcher roller operations; and for a
machine centre.
Subfield
Solid Wood Manufacturing
Domain
Saw Doctoring
Status
Registered
Status date
18 December 2006
Date version published
18 December 2006
Planned review date
31 December 2011
Entry information
Recommended: Unit 668, Demonstrate knowledge of
the principles of saw doctoring; or demonstrate
equivalent knowledge and skills.
Accreditation
Evaluation of documentation by NZQA and industry.
Standard setting body (SSB)
Competenz
Accreditation and Moderation Action Plan (AMAP) reference
0173
This AMAP can be accessed at http://www.nzqa.govt.nz/framework/search/index.do.
Special notes
1
Definitions
RPM refers to revolutions per minute.
SMPM refers to surface metres per minute and is applied to rim, cutting or surface
speed.
2
Trainee is expected to be able to use given formulae and able to transpose formulae
to complete calculations. All formulae will be provided.
3
All performance criteria must be demonstrated and assessed in accordance with the
reference text: Perform basic and apply advanced saw doctoring calculations
(Auckland: Competenz, 2001) and available from Competenz, PO Box 9005,
Newmarket, Auckland 1149.
 New Zealand Qualifications Authority 2016
17969 version 2
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Elements and performance criteria
Element 1
Perform basic calculations used in saw sharpener operations.
Range
calculations for – SMPM, RPM, pulley size.
Performance criteria
1.1
Formulae are transposed in accordance with mathematical principles.
1.2
Saw sharpener data are interpreted and entered into the formulae correctly.
1.3
Calculations are completed accurately to provide the required values.
1.4
Accuracy of the calculated values is verified against industry standards
published in the reference text.
Element 2
Perform basic calculations used in stretcher roller operations.
Range
calculations for – SMPM, gearbox ratio.
Performance criteria
2.1
Formulae are transposed in accordance with mathematical principles.
2.2
Stretcher roller machine data are interpreted and entered into the formulae
correctly.
2.3
Calculations are completed accurately to provide the required values.
2.4
Accuracy of the calculated values is verified against industry standards
published in the reference text.
Element 3
Perform basic calculations for a machine centre.
Range
calculations for – SMPM, RPM, tooth bite, feed speed, tooth pitch, feed per
revolution.
Performance criteria
3.1
Formulae are transposed in accordance with mathematical principles.
3.2
Machine centre data are interpreted and entered into the formulae correctly.
3.3
Calculations are completed accurately to provide the required values.
 New Zealand Qualifications Authority 2016
17969 version 2
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3.4
Accuracy of the calculated values is verified against industry standards
published in the reference text.
Please note
Providers must be accredited by the Qualifications Authority, 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 the Qualifications Authority 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 the Competenz at info@competenz.org.nz if you wish to suggest changes
to the content of this unit standard.
 New Zealand Qualifications Authority 2016