NZQA registered standard
28117 version 1
Page 1 of 3
Title
Monitor performance of a mechanical stress grading machine
Level
4
Credits
10
Purpose
People credited with this unit standard are able to monitor
performance of a mechanical stress grading (MSG) machine.
Classification
Solid Wood Manufacturing > Timber Grading
Available grade
Achieved
Entry information
Recommended skills
and knowledge
Unit 20754, Demonstrate knowledge of mechanical stress
grading of timber; and Unit 28116, Operate a mechanical
stress grading machine to grade timber; or demonstrate
equivalent knowledge and skills.
Explanatory notes
1
The following apply to the performance of all outcomes of this unit standard:
a All work practices must meet recognised codes of practice and documented
worksite health and safety and environmental procedures (where these exceed
code) for personal, product, and worksite health and safety, and must meet the
obligations required under current legislation, including the Health and Safety in
Employment Act 1992, the Resource Management Act 1991, and their
subsequent amendments.
b All work practices must meet documented worksite operating procedures. This
includes the recording (by electronic or non-electronic means) of activities,
events, and decisions.
c All evidence of communications gathered in relation to this unit standard must be
in accordance with worksite procedures for content, recipient, timing, and method.
2
References
AS/NZS 1748.1:2011 Timber - Solid - Stress-graded for structural purposes - General
requirements.
AS/NZS 1748.2:2011 Timber - Solid - Stress-graded for structural purposes Qualification of grading method.
NZS 3622: 2004 Verification of timber properties.
AS/NZS 4490:2011 Timber - Solid - Stress-graded for structural purposes Verification of properties.
AS/NZS 4063.1:2010 Characterization of structural timber - Test methods.
AS/NZS 4063.2:2010 Characterization of structural timber - Determination of
characteristic values.
Competenz
SSB Code 101571
 New Zealand Qualifications Authority 2016
NZQA registered standard
3
28117 version 1
Page 2 of 3
Definition
Worksite policies and procedures refer to documented policies and to documented or
other directions provided to staff. These include, but are not limited to, ways of
managing health and safety, environmental considerations, quality, and production,
and must conform to legislation. Examples include standard operating procedures,
company health and safety plans, on-site briefings, and supervisor’s instructions.
Outcomes and evidence requirements
Outcome 1
Monitor performance of an MSG machine.
Evidence requirements
1.1
Operating faults are recognised and corrective action is taken in accordance
with worksite policies and procedures.
Range
operating faults may include but are not limited to –
incorrect machine settings – incorrect size parameters, transducer
settings, air pressure settings;
mechanical faults – timber breakages, transducer breakages or
moving out of adjustment and/or position, sticking solenoids, load
arms not measuring properly.
1.2
Calibration is carried out in accordance with manufacturer’s specifications or
worksite policies and procedures.
1.3
Verification checks are compared to MSG recordings for each batch or rolling
sample, and the MSG machine is recalibrated in line with verification outcomes,
in accordance with worksite policies and procedures.
1.4
Spraying and/or branding delivery systems are checked and replenished to
meet manufacturer's specifications or worksite policies and procedures.
1.5
Test samples are taken for analysis to meet the requirements of NZS 3622, and
AS/NZS 4490.
1.6
Records are analysed and stored in accordance with worksite policies and
procedures.
Replacement information
This unit standard and unit standard 28116 replaced unit
standard 141.
Planned review date
31 December 2018
Competenz
SSB Code 101571
 New Zealand Qualifications Authority 2016
NZQA registered standard
28117 version 1
Page 3 of 3
Status information and last date for assessment for superseded versions
Process
Version Date
Last Date for Assessment
Registration
1
20 March 2014
N/A
Consent and Moderation Requirements (CMR) reference
0173
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.
Comments on this unit standard
Please contact Competenz qualifications@competenz.org.nz if you wish to suggest
changes to the content of this unit standard.
Competenz
SSB Code 101571
 New Zealand Qualifications Authority 2016