NZQA Expiring unit standard
20753 version 3
Page 1 of 4
Title
Optimise resawing timber for fibre and grade recovery
Level
4
Credits
Purpose
20
People credited with this unit standard are able to: demonstrate
knowledge of fibre and grade recovery for resawing timber;
make optimising decisions for resawing timber; implement
optimisation decisions for fibre and grade recovery when
resawing timber at production speed; and monitor output timber
when resawing timber for optimum fibre and grade recovery.
This unit standard applies to the resawing of timber for fibre
and grade recovery using an adjustable sawing system.
Classification
Solid Wood Manufacturing > Sawmilling
Available grade
Achieved
Entry information
Recommended skills
and knowledge
Recommended: Unit 20752, Operate ripping saw centre; and
Unit 160, Demonstrate knowledge of the principles of
sawmilling; or demonstrate equivalent knowledge and skills.
This unit standard is
expiring
Explanatory notes
1
Definitions
Input material refers to timber, or boards that are presented to the resaw centre for
further processing.
Optimise refers to the most efficient use of product and plant taking into account raw
material input, customer demands, and machine capability.
Worksite documentation refers to instructions to staff on policy and procedures
(including the application of legislation to worksite situations), which are formally
documented, and are available for reference at the worksite. Examples are standard
operating procedures, specifications, manuals, and manufacturer's information.
2
a
The following apply to the performance of all outcomes of this unit standard:
All work practices must meet recognised codes of practice and documented worksite
health and safety and environmental procedures (where these exceed the 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.
All work practices must meet documented worksite operating procedures. This
includes the recording (by electronic or non-electronic means) of activities, events,
and decisions.
b
Competenz
SSB Code 101571
 New Zealand Qualifications Authority 2016
NZQA Expiring unit standard
c
20753 version 3
Page 2 of 4
All evidence of communications gathered in relation to this unit standard must be in
accordance with worksite procedures for content, recipient, timing and method.
Outcomes and evidence requirements
Outcome 1
Demonstrate knowledge of fibre and grade recovery for resawing timber.
Evidence requirements
1.1
Cutting plan and product output mix are described in relation to input materials
and customer specifications in accordance with worksite documentation.
1.2
Processing constraints are identified and potential solutions are described.
Range
1.3
constraints may include but are not limited to – markets, log and/or
timber supply, cutting priorities, downstream processing options.
Impacts of poor decision making on fibre and grade recovery are described and
related to potential effects on customer demand and saw centre efficiency.
Range
customer and saw centre efficiency may include but is not limited
to – shipping on time, customer preference, saw centre
productivity, volume of input material required, undesirable product
generation.
Outcome 2
Make optimising decisions for resawing timber.
This unit standard is
Input materials checks are completed to ensure materials meet specification
and production run expectations in accordance with worksite documentation.
expiring
Evidence requirements
2.1
2.2
Individual pieces of input material are inspected for defects and their impact on
the cutting plan is described with reference to constraints outlined in evidence
requirement 2.1.
2.3
Cutting plan is selected based on the results of the inspection and the decision
is made in accordance with worksite documentation.
2.4
Trial pieces are cut and checked to ensure that results achieved match those
predicted in evidence requirement 2.3.
Outcome 3
Implement optimisation decisions for fibre and grade recovery when resawing timber at
production speed.
Competenz
SSB Code 101571
 New Zealand Qualifications Authority 2016
NZQA Expiring unit standard
20753 version 3
Page 3 of 4
Evidence requirements
3.1
Hazards associated with optimising resawing timber for fibre and grade
recovery are identified and actions to be taken to isolate, minimise or eliminate
the hazard are described in accordance with worksite documentation.
Range
3.2
hazards may include but are not limited to – moving equipment,
saw dust, mobile plant, noise.
Safe work practices associated with optimising resawing timber for fibre and
grade recovery are identified and used in accordance with worksite
documentation and legislative requirements.
Range
practices may include but are not limited to – isolation procedures,
lock-outs, emergency stops, machine guarding, wearing
appropriate safety equipment.
3.3
Cutting programme is selected and the cutting schedule is developed to meet
the requirements of the cutting plan in accordance with worksite documentation.
3.4
Cutting plans are implemented to optimise fibre and grade recovery in
accordance with worksite documentation.
3.5
Resaw production rate and product quality specifications are met in accordance
with worksite documentation.
3.6
Product flow is managed to optimise downstream process utilisation in
accordance with worksite documentation.
Outcome 4
This unit standard is
Output timber and outputexpiring
data are monitored for grade and size, and corrective
action is taken to optimise fibre and grade recovery in accordance with worksite
Monitor output timber when resawing timber for optimum fibre and grade recovery.
Evidence requirements
4.1
documentation.
4.2
Equipment faults and malfunctions are identified and corrective actions taken in
accordance with worksite documentation.
Range
equipment faults may be mechanical, electrical, or hydraulic.
This unit standard is expiring. Assessment against the standard must take place by
the last date for assessment set out below.
Competenz
SSB Code 101571
 New Zealand Qualifications Authority 2016
NZQA Expiring unit standard
20753 version 3
Page 4 of 4
Status information and last date for assessment for superseded versions
Process
Version Date
Last Date for Assessment
Registration
1
18 December 2006
31 December 2015
Review
2
18 April 2013
31 December 2015
Rollover
3
16 April 2015
31 December 2018
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.
This unit standard is
expiring
Competenz
SSB Code 101571
 New Zealand Qualifications Authority 2016