24415 version 1
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Bond brake shoes
Level
4
Credits
6
Purpose
This unit standard is for people in the brake engineering industry. People
credited with this unit standard are able to select and prepare the brake
components for bonding, and carry out the brake shoe bonding operation.
Subfield
Motor Industry
Domain
Vehicle Braking Systems
Status
Registered
Status date
25 January 2008
Date version published
25 January 2008
Planned review date
31 December 2012
Entry information
Recommended: Unit 24414, Demonstrate knowledge of
the brake bonding process, or demonstrate equivalent
knowledge and skills.
Replacement information
This unit standard and unit standard 24414 replaced unit
standard 5431.
Accreditation
Evaluation of documentation and visit by NZQA and
industry.
Standard setting body (SSB)
NZ Motor Industry Training Organisation (Incorporated)
Accreditation and Moderation Action Plan (AMAP) reference
0014
This AMAP can be accessed at http://www.nzqa.govt.nz/framework/search/index.do.
Special notes
1
Legislation relevant to this unit standard includes but is not limited to – Hazardous
Substances and New Organisms Act 1996; Health and Safety in Employment Act
1992; Land Transport Rule: Light-vehicle Brakes 2002, Rule 32014.
 New Zealand Qualifications Authority 2016
24415 version 1
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2
Land Transport Rules are produced for the Minister of Transport by Land Transport
New Zealand. These rules are available online at
http://www.landtransport.govt.nz/rules/.
3
Definitions
Bonding equipment instructions or adhesive manufacturer instructions refer to the
instructions provided by the manufacturer for the correct operation of the bonding
equipment or application of the adhesive provided by that manufacturer.
Company requirements refer to instructions to staff on policy and procedures which
are documented in memo or manual format and are available in the workplace.
These requirements include but are not limited to – company specifications and
procedures, work instructions, manufacturer specifications, product quality
specifications, and legislative requirements.
Elements and performance criteria
Element 1
Select and prepare the brake components for bonding.
Performance criteria
1.1
Safe working practices are observed throughout the task in accordance with
legislative requirements.
Range
1.2
includes but is not limited to – protective clothing, extractor,
cleanliness, respirator, face mask, gloves, fire extinguisher.
Bonding equipment is prepared in accordance with bonding equipment
instructions.
Range
may include but is not limited to – curing oven, adhesive
applicator, adhesive, bonding lamps, dip tank cleanliness, shoe
pre-dip dilution ratio, adhesive manufacturer specifications,
pyrometer, thermocouple, protective equipment.
1.3
Brake shoes selected for bonding are to manufacturer wear tolerance
specifications.
1.4
Lining material is removed, without damage to the shoes, in accordance with
company requirements.
Range
may include but is not limited to – grinding, de-riveting, chiselling,
debonding oven.
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1.5
Shoes are cleaned and prepared to the requirements of the adhesive
manufacturer.
Range
1.6
may include but is not limited to – shot blasting, chemical cleaning,
burning in oven, rust proofing by dipping and coating.
Lining material is selected and prepared, and matched to the purpose intended,
in accordance with manufacturer specifications.
Range
may include but is not limited to – reference to manufacturer
charts, obtaining customer requirements, extruded, pre-coated.
Element 2
Carry out the brake shoe bonding operation.
Performance criteria
2.1
Safe working practices are observed throughout the task in accordance with
legislative requirements.
Range
2.2
No dust and dirt is present on the friction material in accordance with company
requirements.
Range
2.3
includes but is not limited to – lining positioned on platform, lining
to platform contact, jig clamping pressure, oven curing cycle to
temperature and time.
Bond line adherence of a lining meets adhesive manufacturer shear test
specifications.
Range
2.6
may include but is not limited to – selecting adhesive type,
ensuring a uniform adhesive, applying adhesive pattern, air-drying
and force drying procedures, measuring dry adhesive thickness.
Brake lining is bonded to the platform in accordance with adhesive
manufacturer instructions.
Range
2.5
may include but is not limited to cleaning by – brushing,
compressed air.
Adhesive is applied to the lining surface, and curing times adhered to, in
accordance with adhesive manufacturer instructions.
Range
2.4
includes but is not limited to – protective clothing, extractor,
cleanliness, respirator, face mask, gloves, fire extinguisher handy.
may include but is not limited to – twisting test, chisel test, axial
shear test.
Rebonded shoe is radius ground to match drum size in accordance with vehicle
manufacturer specifications.
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24415 version 1
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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 NZ Motor Industry Training Organisation (Incorporated)
info@mito.org.nz if you wish to suggest changes to the content of this unit standard.
 New Zealand Qualifications Authority 2016