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Tip saw teeth with stellite or high speed steel
Level
4
Credits
10
Purpose
People credited with this unit standard are able to: manage hazards
associated with tipping saws with stellite or high speed steel; prepare saws
for tipping; tip saw teeth; and grind saw teeth to size.
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 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
Definitions
Tipping refers to the fixing of a metallic tip to saw teeth.
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. For
people already employed in the industry, the worksite referred to is their employer's.
For other people, the worksite will be either a local worksite or a typical New Zealand
worksite. For these learners, the Industry Training Organisation will ensure that the
training given by accredited providers meets these standards.
2
Range
 New Zealand Qualifications Authority 2016
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saws – circular, frame or band saws;
evidence is required of one saw type and one tip type.
3
The following apply to the performance of all elements 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
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.
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.
Elements and performance criteria
Element 1
Manage hazards associated with tipping saws with stellite or high speed steel.
Performance criteria
1.1
Hazards associated with tipping saws with stellite or high speed steel tips are
identified and actions to be taken to isolate, minimise or eliminate the hazard
are described in accordance with worksite documentation.
Range
1.2
hot objects, moving equipment, grinding wheel disintegration,
loose grinding wheel, exposure to grinding coolant.
Safe work practices associated with tipping saws with stellite or high speed
steel tips to saws are identified and used in accordance with company and legal
requirements.
Range
practices may include but are not limited to – isolation procedures,
lock outs, emergency stops, machine guarding, the wearing of
appropriate safety equipment
Element 2
Prepare saws for tipping.
Performance criteria
2.1
Saw and work areas are cleaned of all foreign matter that could affect tipping
operations.
2.2
Teeth are assessed for wear and damage, and teeth are re-profiled where
indicated.
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2.3
Tipping equipment is checked for wear and lubricated in accordance with
worksite documentation and/or manufacturer’s requirements.
Range
welding equipment, dial gauges, micrometer, calipers, tweezers,
safety equipment, cleaning agent.
2.4
Saw is set up in the tipping machine in accordance with worksite documentation
and/or manufacturer’s specifications.
2.5
Seats are ground to receive the length of the tip.
2.6
Teeth are deburred to meet worksite documentation.
2.7
Tips are selected for size and type to suit saw application.
Element 3
Tip saw teeth.
Performance criteria
3.1
Tips and seats are cleaned of all foreign matter that could affect tipping
operations.
3.2
Tipping equipment is set up and operated in accordance with worksite
documentation and/or manufacturer’s specifications.
3.3
Tips are welded so that they adhere to the tooth.
3.4
Heat affected area is annealed.
3.5
Slag is removed from welded area.
3.6
Each tip has sufficient material for side dressing to the required kerf.
Element 4
Grind saw teeth to size.
Performance criteria
4.1
New teeth are ground to the same size as the original teeth.
4.2
Teeth are side ground to required radial and tangential angles and company
kerf requirements.
4.3
Grinding solutions are handled and stored in accordance with Material Safety
Data Sheets (MSDS) and worksite documentation.
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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