Modification History
Version |
Comments |
Version 1.2 |
Data entry error in numbering of performance criteria in elements 1 and 2 corrected |
Version 1.1 |
Updated in line with skills for sustainability review to reflect organisational environmental requirements |
Unit Descriptor
Unit descriptor |
This unit describes the outcomes required to level, tension, back-gauge, weld and replace teeth on wide band saw blades General workplace legislative and regulatory requirements apply to this unit; however there are no specific licensing or certification requirements at the time of publication This unit replaces FPISAW3220B Maintain wide band saw blades. Equivalent |
Application of the Unit
Application of the unit |
The unit involves maintaining wide band saw blades in a forest products factory setting The skills and knowledge required for competent workplace performance are to be used within the scope of the person's job and authority |
Licensing/Regulatory Information
Refer to Unit Descriptor
Pre-Requisites
Not applicable
Employability Skills Information
Employability skills |
This unit contains employability skills |
Elements and Performance Criteria Pre-Content
Elements describe the essential outcomes of a unit of competency. |
Performance criteria describe the performance needed to demonstrate achievement of the element. Where bold italicised text is used, further information is detailed in the required skills and knowledge section and the range statement. Assessment of performance is to be consistent with the evidence guide. |
Elements and Performance Criteria
ELEMENT |
PERFORMANCE CRITERIA |
1. Prepare for maintenance |
1.1. Applicable Occupational Health and Safety (OHS), environmental , legislative and organisational requirements relevant to maintaining wide band saw blades are identified and followed 1.2. Work order is reviewed and checked with appropriate personnel 1.3. Wide band and gang saws to be maintained are removed from the designated machinery 1.4. Equipment is selected appropriate to work requirements and checked for operational effectiveness in line with manufacturer's recommendations 1.5. Maintenance process is planned in line with site procedures and environmental requirements 1.6. Communication with others is established and maintained in line with OHS requirements |
2. Assess saw condition |
2.1. Saws are handled safely without damage to teeth 2.2. Foreign material built up on blade surfaces is cleaned for inspection 2.3. Saw is inspected to assess condition of teeth and saw blade 2.4. Teeth and tips requiring repair or replacement are checked and marked 2.5. Saw is declared unserviceable where hazardous defects are found and disposed of in line with site procedures, manufacturer's recommendations and environmental requirements |
3. Level, tension and back-gauge saw blade |
3.1. Ridges or lumps across and along saw are assessed and matched on both sides of the blade 3.2. Gauges and straight edges are used in both directions and monitored for accuracy 3.3. Ridges or lumps are progressively removed through levelling and the use of stretcher rolls or levelling rolls to achieve flatness 3.4. Levelling or rolling patterns are controlled to localise stresses to avoid spring-back and re-occurrence of defects 3.5. Saw blade is checked against required curvature using a gauge to identify tensioning requirements 3.6. Tension curvature is obtained across and along saw blade in line with required standard 3.7. Alignment of saw back is checked against saw tolerances using a gauge and areas not conforming are rolled to obtain required tolerance |
4. Repair teeth and blade cracks |
4.1. Saw blade is placed in welding jig for applying heat and undertaking welding activities 4.2. Weld line is marked to check amount of damaged tooth to be removed or crack to be repaired and selected to minimise stresses 4.3. Metal is removed to the proposed line, the metal edge is prepared for the welding process and cleaned free of burn marks 4.4. Worn, broken or ground surface is prepared for metal build up or replacement by applying heat and pressure 4.5. Teeth or cracked area is built up or replaced using compatible welding material and welding procedures that ensure specified metal penetration and density 4.6. Weld run -off tabs are used to limit stress and hollows at edges of the saw blade 4.7. Teeth or cracks are ground or filed to required shape, tolerance and pitch 4.8. Saws where teeth, tips or blade cracks are damaged during the repair process and cannot be repaired are disposed of in line with site procedures, manufacturer's recommendations and environmental requirements 4.9. Repair process and equipment faults are investigated, recorded and reported in line with site requirements |
Required Skills and Knowledge
REQUIRED SKILLS AND KNOWLEDGE |
This describes the essential skills and knowledge and their level required for this unit |
Required skills |
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Required knowledge |
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Evidence Guide
EVIDENCE GUIDE |
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The evidence guide provides advice on assessment and must be read in conjunction with the performance criteria, required skills and knowledge, range statement and the Assessment Guidelines for the Training Package. |
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Overview of assessment |
A person who demonstrates competency in this unit must be able to provide evidence that they can safely and efficiently maintain wide band saw blades and gang saws within organisational requirements |
Critical aspects for assessment and evidence required to demonstrate competency in this unit |
The evidence required to demonstrate competency in this unit must be relevant to, and satisfy, all of the requirements of the elements of this unit and include demonstration of:
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Context of and specific resources for assessment |
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Method of assessment |
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Range Statement
RANGE STATEMENT |
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The range statement relates to the unit of competency as a whole. It allows for different work environments and situations that may affect performance. Bold italicised wording, if used in the performance criteria, is detailed below. Essential operating conditions that may be present with training and assessment (depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts) may also be included. |
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OHS requirements : |
are to be in line with applicable Commonwealth, State or Territory legislation and regulations, and organisational safety policies and procedures, and may include:
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Environmental requirements may include: |
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Legislative requirements : |
are to be in line with applicable Commonwealth, State or Territory legislation, regulations, certification requirements and codes of practice and may include:
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Organisational requirements may include: |
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Work order is to include: |
and may include:
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Appropriate personnel may include: |
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Wide band and gang saws are to include: |
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Maintenance may include: |
the correction of:
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Equipment may include: |
and a range of hand-held tools including:
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Communication may include: |
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Disposing of may include: |
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Ridges or lumps are to include: |
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Gauges and straight edges are to include: |
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Levelling is to include: |
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Stretcher rolls and levelling rolls are to include: |
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Patterns are to include: |
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Curvature |
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Tensioning |
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Welding jigs |
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Welding may include: |
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Metal penetration and density is to include: |
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Run-on and run-off tabs |
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Tolerance may include: |
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Records and reports may include: |
and may be:
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Unit Sector(s)
Unit sector |
No sector assigned |
Competency field
Competency field |
Sawmilling and Processing |