17862 version 4
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Demonstrate knowledge of mechanical engineering systems used in
wood manufacturing industries
Level
3
Credits
10
Purpose
People credited with this unit standard are able to demonstrate knowledge of:
the types, uses and operator checks of mechanical drives; the types, uses
and operator checks of bearings; and hydraulic systems and pneumatic
systems used in wood manufacturing industries.
Subfield
Wood Manufacturing - Generic Skills
Domain
Wood Manufacturing Foundation Skills
Status
Registered
Status date
19 March 2010
Date version published
19 March 2010
Planned review date
31 December 2015
Entry information
Open.
Accreditation
Evaluation of documentation and visit 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
The reference text for this unit standard is: Demonstrate knowledge of mechanical
engineering systems used in the wood processing industries, (Auckland: Competenz,
2004).
2
Definitions
Manufacturer’s instructions are instructions provided by manufacturers of
substances, equipment, and machinery. These instructions may include details on
safe and correct handling, use and storage of substances and/or details on
substance properties. Examples are labels on substance containers, product data
sheets, and operator’s manuals.
Wood manufacturing industries include pulp and paper manufacturing, wood panels
manufacturing, solid wood processing, and wood product manufacturing.
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Wood manufacturing operations refer to any operation or organisation involved in the
conversion of any wood materials to saleable products.
Elements and performance criteria
Element 1
Demonstrate knowledge of the types, uses, and operator checks of mechanical drives in
wood manufacturing industries.
Performance criteria
1.1
Types of gearboxes used in wood manufacturing operations are identified and
at least one key function is explained in accordance with the reference text.
Range
helical, bevel, worm, worm and wheel.
1.2
The main functions of shaft coupling systems used in wood manufacturing
operations are explained in accordance with the reference text.
1.3
Mechanical drive components used in wood manufacturing operations are
identified and their key functions are explained in accordance with the reference
text.
Range
1.4
universal joint, universal shaft, belt drives, chain drives, pulleys.
Operator checks for deterioration of mechanical drives used in wood
manufacturing operations are explained in accordance with the reference text.
Range
vibration, temperature, noise, corrosion, lubrication
looseness, abnormal movement, contamination.
levels,
Element 2
Demonstrate knowledge of the types, uses, and operator checks of bearings used in wood
manufacturing industries.
Performance criteria
2.1
Bearing types in wood manufacturing operations are identified and their
application is described in accordance with manufacturer’s instructions.
2.2
The function of bearing components is explained in accordance with
manufacturer’s instructions.
Range
2.3
rolling elements, inner and outer ring, cage, seals.
Lubrication of bearings and their associated components are explained in
accordance with manufacturer’s instructions.
Range
type, quantity, sealing.
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2.4
Operator checks for prevention of bearing failure in wood manufacturing
operations are explained in accordance with manufacturer’s instructions.
Range
noise, temperature, smell,
vibration, contamination.
corrosion,
leaks,
discolouration,
Element 3
Demonstrate knowledge of the function of hydraulic systems used in the wood
manufacturing industries.
Performance criteria
3.1
Contaminants to be avoided in hydraulic systems are identified and their
method of control is described in accordance with manufacturer’s instructions.
3.2
Factors influencing the performance of hydraulic systems are described in
accordance with manufacturer’s instructions.
Range
3.3
Components in a hydraulic system are described in terms of their purpose.
Range
3.4
components –
piping and hoses, filters, gauges, valves,
accumulators; cylinder ram, motor.
The hydraulic system is checked for signs of deterioration in accordance with
manufacturer’s instructions, and the signs are described in terms of the effects
of the deterioration on the hydraulic system.
Range
3.5
pipe diameter, length, restrictions, valves, fittings.
signs of deterioration include – hydraulic pump cavitations, filter
and strainer blockages, hydraulic fluid leaks, lubrication level
monitoring, system over temperature.
Hydraulic system safety and environmental requirements are described in
accordance with worksite policies and procedures.
Range
hazards to people, system shutdown and isolation processes,
prevention of hydraulic fluid leakage.
Element 4
Demonstrate knowledge of pneumatic systems used in wood manufacturing industries.
Performance criteria
4.1
The function of pneumatic systems is described in terms of compressor and air
delivery systems in accordance with manufacturer’s instructions.
4.2
Types of air compressors are identified.
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Range
may include but is not limited to – reciprocating, rotary, axial flow,
screw.
Evidence of two types is required.
4.3
Importance of maintaining the compressed air supply is explained in terms of
instrumentation protection and process control.
4.4
Components in a pneumatic system are described in terms of their purpose.
Range
4.5
air
lines,
regulators,
drains,
The pneumatic system is checked for signs of deterioration in accordance with
manufacturer’s instructions, and the signs are described in terms of the effects
of the deterioration on the pneumatic system.
Range
4.6
components – compressors,
lubricators, filters.
signs of deterioration include – filter blockages, air leaks,
lubrication level monitoring, compressor over heating.
Pneumatic system safety requirements are described in accordance with
worksite policies and procedures.
Range
safety requirements – people, system shutdown, isolation
processes.
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 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