Nzqa expiring unit standard 15399 version 5




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NZQA Expiring unit standard

15399 version 5




Page of




Title

Describe Caterpillar diesel fuel injection pumps, and overhaul them

Level

4

Credits

12




Purpose

This unit standard is for people in the automotive fuel injection industry. People credited with this unit standard are able to: demonstrate knowledge of Caterpillar fuel pump operation and repair procedures; dismantle a Caterpillar pump and complete an inspection report; renew and replace pump components and reassemble pump; and bench test a Caterpillar fuel injection pump assembly and adjust settings.




Classification

Motor Industry > Automotive Fuel Systems and Exhaust




Available grade

Achieved


Explanatory notes
1 The following legislation and amendments are required to be consulted and followed where applicable:

Health and Safety in Employment Act, 1992.


2 Reference to suitable tools and workshop equipment means industry approved tools and equipment that are recognised within the industry as being the most suited to complete the task to a professional and competent manner with due regard to safe working practices.
3 Because of the particular nature of this unit standard, it is essential that the practical assessment evidence is obtained from commercial jobs in the workplace under normal workplace conditions.
Outcomes and evidence requirements
Outcome 1
Demonstrate knowledge of Caterpillar fuel pump operation and repair procedures.
Range sleeve metering type, new scroll type.
Evidence requirements
1.1 Pump construction is described according to fuel injection pump manual description.
Range features, identification of components, layout of components.
1.2 Pump operation is explained according to fuel injection pump manual explanation.
Range pumping action, delivery, controls, advance devices, cold start.
1.3 The importance of cleanliness when working with fuel injection components is identified.
Range contamination, precise machining tolerances and close operating fits of components, damage and premature failure.
1.4 Faults which affect the fuel pump operation are described according to fuel injection pump manual description.
Range fuel contamination, misalignment of fuel pump and drive train, timing advance, injector seal leakage, adjustments.
1.5 Wear patterns on components are described according to fuel injection pump manual description.
Range fuel contamination, misalignment, lack of lubrication, corrosion, abrasion, cavitation.
1.6 Servicing procedures are described according to fuel injection pump manual description.
Range cleaning, testing, dismantling, overhauling, reassembling.
Outcome 2
Dismantle a Caterpillar pump and complete an inspection report.
Range sleeve metering type and/or new scroll type.
Evidence requirements
2.1 Safe working practices are observed throughout the task.
Range personal safety, safety of others, equipment safety.
2.2 Suitable tools and workshop equipment are selected and used, to enable the pump assembly to be dismantled and inspected.
2.3 The fuel pump assembly is dismantled on a stripping jig according to manufacturer's instructions.
2.4 All parts are cleaned to enable an inspection to be carried out.
2.5 A condition report is completed and given to the supervisor.
Range inspection of parts, identifying and recording faults, recommending repairs and replacement of parts.
Outcome 3
Renew and replace pump components and reassemble pump.
Range sleeve metering type and/or new scroll type.
Evidence requirements
3.1 Safe working practices are observed throughout the task.
Range personal safety, safety of others, equipment safety.
3.2 Suitable tools and workshop equipment are selected and used, to enable the components to be replaced and the pump assembly to be reassembled according to manufacturer's specifications.
3.3 All parts that are determined as needing replacement are ordered from a supplier.
Range interpreting parts catalogues, using updates and supersessions, obtaining pricing and delivery details.
3.4 The pump is reassembled with new and existing parts according to manufacturer's instructions and specifications.
Outcome 4
Bench test a Caterpillar fuel injection pump assembly and adjust settings.
Range sleeve metering type and/or new scroll type.
Evidence requirements
4.1 Safe working practices are observed throughout the task.
Range personal safety, safety of others, equipment safety, safety precautions when working with high pressure fuel.
4.2 Suitable tools and workshop equipment are selected and used, to enable the pump assembly to be tested and adjustments made according to manufacturer's specifications.
4.3 The fuel pump assembly is mounted and set up for testing and setting on a test bench according to manufacturer's instructions.
4.4 The fuel pump assembly is tested, and settings made according to manufacturer's specifications.
Range calibration and phase, timing mark checked.
4.5 The fuel pump assembly is removed from the test bench with fuel inlets and adjustments sealed.



Replacement information

This unit standard has been replaced by unit standard 24226 and unit standard 24227.

This unit standard replaced unit standard 5449.




This unit standard is expiring. Assessment against the standard must take place by the last date for assessment set out below.
Status information and last date for assessment for superseded versions

Process

Version

Date

Last Date for Assessment

Registration

1

29 March 1999

31 December 2016

Review

2

19 April 2002

31 December 2016

Review

3

25 January 2008

31 December 2020

Rollover

4

19 November 2010

31 December 2020

Rollover

5

22 August 2014

31 December 2020




Consent and Moderation Requirements (CMR) reference

0014

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.


NZ Motor Industry Training Organisation (Incorporated)

SSB Code 101542



Ó New Zealand Qualifications Authority 2016





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