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AUTOMOTIVE INDUSTRY RETAIL, SERVICE & REPAIR - part 67

AURT5720A Analyse and evaluate wheeled mobile plant steering and suspension system faults

Automotive Industry RS&R

484

AUR99 Version 4.00 Review by 30 June 2004

©Australian National Training Authority

EVIDENCE GUIDE

Underpinning knowledge

• Wheeled mobile plant terminology and definitions

• General knowledge of the concepts, principles and

processes involved in planning and implementing systems
analysis and evaluation

• Basic electrical theory covering voltage, current,

resistance, power, magnetics and inductance (including
semi-conductors and electronic system applications)

• Mechanical theory covering the concepts and principles of

mechanical, hydraulic and pneumatic systems

• Steering system theory including steering angles

• The functions of hydraulic pressure with steering and

suspension systems

• Detailed knowledge of the types, applications and

limitations of wheels and tyres used on wheeled mobile
plant

• Detailed knowledge of the types, function, operations and

limitations of wheeled mobile plant power assisted steering
systems/components

• Detailed knowledge of the types, function, operations and

limitations of wheeled mobile plant power full hydrostatic
steering systems/components

• Detailed knowledge of the types and influences of trailed

equipment operations on wheeled mobile plant steering
performance

• Detailed knowledge of the types, function and limitations

of wheeled mobile plant rigid frame suspension
systems/components

• Detailed knowledge of the types, function and limitations

of wheeled mobile plant oscillating axles suspension
systems/components

• Detailed knowledge of the types, function and limitations

of wheeled mobile plant hydrostatic suspension
systems/components

• Detailed knowledge of the types, function and limitations

of wheeled mobile plant oil/gas suspension
systems/components

• Detailed knowledge of the types, function and limitations

of wheeled mobile plant cushion hitch suspension
systems/components

Automotive Industry RS&R

AURT5720A Analyse and evaluate wheeled mobile plant steering and suspension system faults

©Australian National Training Authority

AUR99 Version 4.00 Review by 30 June 2004

485

EVIDENCE GUIDE

Underpinning knowledge
(continued)

• General knowledge of automotive digital computing

systems

• General knowledge of the theory of diagnosis including

concept, design and planning

• Detailed knowledge of the types, functions, operations and

limitations of diagnostic testing equipment

• Detailed knowledge of the methods and processes for

recording and reporting diagnostic findings and
recommendations

Underpinning skills

These include a number of processes that are learnt throughout work and life, which are
required in most jobs. Some of these are covered by the national key competencies, although
others may be added. The questions below highlight how these processes are applied in this
competency unit. The number in brackets indicates the level to which the key competency
needs to be demonstrated where (1) is where work is within set conditions and process, (2) is
where the management or facilitation of conditions or process is exercised, and (3) is where
the design and/or development of conditions or process are required.

How will the candidate apply the following key competency in this unit?

The candidate will need to:

Collect, analyse and
organise information

Research, organise and understand technical information related
to contemporary wheeled mobile plant steering and suspension
systems, monitoring and testing processes, diagnostic methods
and options and safety procedures.

(Level 3)

Communicate ideas and
information

Communicate ideas and information to enable confirmation of
work requirements and specifications, coordination of work with
site supervisor, other workers and customers, the reporting of
work outcomes and the completion of regulatory, commercial
and vehicle information systems inputs.

(Level 2)

Plan and organise
activities

Plan and organise activities including the planning of analytical
processes, the establishment of evaluative (success) criteria, the
preparation and layout of the worksite and the obtaining of
testing equipment and material to avoid any back tracking,
workflow interruptions or wastage.

(Level 2)

AURT5720A Analyse and evaluate wheeled mobile plant steering and suspension system faults

Automotive Industry RS&R

486

AUR99 Version 4.00 Review by 30 June 2004

©Australian National Training Authority

EVIDENCE GUIDE

Underpinning skills (continued)

Work with others and in
a team

Work with others and in a team by recognising dependencies and
using cooperative approaches to optimise workflow and
productivity.

(Level 2)

Use mathematical ideas
and techniques

Use mathematical ideas and techniques to correctly complete
measurements, calculate analytical requirements, calibrate and
establish testing equipment and present analytical results.

(Level 2)

Solve problems

Establish analytical processes, including diagnostic processes,
which anticipate and allow for risks, cater for both direct and
indirect evidence, avoid or minimise reworking and avoid
wastage.

(Level 3)

Use technology

Use the workplace technology related to systems analysis and
diagnosis, information research and management systems,
testing equipment, maintenance equipment, tools, calculators
and measuring devices.

(Level 2)

EVIDENCE GUIDE

Resource implications

•

Access to a realistic requirement and objective(s) for
analysis and evaluation, wheeled mobile plant steering and
suspension systems with real or simulated faults,
monitoring processes and testing equipment appropriate to
the objective(s), research facilities and technical
information and a realistic work environment

Method of assessment

•

Assessment of this competency is most likely to be project
related under real or simulated conditions and require
portfolios or other forms of indirect evidence of process.
Direct evidence may include certification of compliance of
the final outcome/product or authorisation for use by a
competent authority

•

Assessment must confirm the inference that competency is
able not only to be satisfied under the particular
circumstances, but is able to be transferred to other
circumstances

Context/s of assessment

•

Assessment may occur on the job or in a workplace
simulated facility with relevant process equipment,
material, work instructions and deadlines

Automotive Industry RS&R

AURT5721A Analyse and evaluate wheeled mobile plant transmission system faults

©Australian National Training Authority

AUR99 Version 4.00 Review by 30 June 2004

487

AURT5721A

Analyse and evaluate wheeled mobile plant
transmission system faults

Unit descriptor

This unit covers the competency to correctly analyse and
evaluate wheeled mobile plant transmission systems in order to
initiate action to sustain, vary or enhance performance. It
includes failure analysis covering the complex diagnosis of
multi-system and intermittent faults as well as evaluation of
performance achievements and variations. It also requires the
candidate to identify, evaluate, select and record the most
appropriate response to the stated objective of the analysis and
evaluation process.

This unit forms part of the competency inventory for an
automotive technologist or subject matter specialist. It
encompasses and builds on trade level competencies.

ELEMENT PERFORMANCE

CRITERIA

1. Identify and confirm

the work requirement

1.1

Work instructions and reports are used to determine the
nature and objective of the analysis and evaluation
requirements

1.2

Benchmark specifications for correctly functioning
wheeled mobile plant transmission systems are accessed
and interpreted

1.3

OH&S requirements including equipment and system
isolation requirements and personal protection needs are
observed throughout the work

1.4

The effects of any systemic deficiencies/discrepancies or
faults are identified and confirmed from indirect and/or
direct evidence

1.5

Possible safety impacts of the work are considered and
responded to in accordance with regulatory and
enterprise obligations and practices

2. Prepare for analysis

and evaluation

2.1

Evaluative criteria are developed/adopted to meet the
objective of the work

2.2

System performance achievements and/or discrepancies
are identified from an analysis of technical support
information and available on-board diagnostic systems

2.3

The most appropriate analytical and evaluative
methodology including diagnostic process, sequence,
tests and testing equipment are developed and/or
identified and selected from the range of available
options

AURT5721A Analyse and evaluate wheeled mobile plant transmission system faults

Automotive Industry RS&R

488

AUR99 Version 4.00 Review by 30 June 2004

©Australian National Training Authority

ELEMENT PERFORMANCE

CRITERIA

2. Prepare

for

analysis

and evaluation
(continued)

2.4

Testing equipment is obtained and prepared for
application in accordance with regulatory,
manufacturer/component supplier and enterprise
requirements

2.5

Tools and material required to support the diagnostic
process are identified, selected and prepared for use

2.6

Wheeled mobile plant transmission system components
are prepared for the diagnostic process including park-up,
isolation and cleaning requirements

3. Apply the analysis and

evaluative
methodology

3.1

The selected analytical and diagnostic process is
followed in accordance with specifications and directions
and/or the locally authorised method

3.2

Tests and testing equipment are applied in accordance
with regulatory requirements and the manufacturer/
component supplier specifications

3.3

Analytical and other diagnostic findings are verified, if
necessary by using reliable alternate or optional
processes, and documented

3.4

Analytical findings and results are evaluated against the
agreed criteria

3.5

Valid conclusions are drawn from the available evidence
and documented to enterprise requirements

3.6

Information and detail related to the analysis and
evaluation is provided to the appropriate parties in
accordance with regulatory and commercial obligations

4. Select response

measure

4.1 Options for responding to the objective or need are

identified from further research of technical support
information

4.2 The most appropriate response option is selected from an

analysis of the options, the prevailing circumstance,
regulatory requirements and commercial policies

4.3 The selected response option is documented and reported

in accordance with regulatory and enterprise
requirements and practices

Restore the workplace

5.1 Material that can be reused is collected and stored

5.2 Testing equipment and other support material are cleaned,

maintained and prepared ready for further use or stored in
accordance with manufacturer/component supplier
specifications and enterprise requirements

5.3 Waste and scrap is removed following workplace

procedures

Automotive Industry RS&R

AURT5721A Analyse and evaluate wheeled mobile plant transmission system faults

©Australian National Training Authority

AUR99 Version 4.00 Review by 30 June 2004

489

ELEMENT PERFORMANCE

CRITERIA

Restore the workplace
(continued)

5.4 Equipment and work area are cleaned and inspected for

serviceable condition in accordance with workplace
procedures

5.5 Unserviceable equipment is tagged and faults identified in

accordance with workplace procedures

RANGE STATEMENT

The Range Statement provides advice to interpret the scope and context of this unit of
competency, allowing for differences between enterprises and workplaces. It relates to the unit
as a whole and facilitates holistic assessment. The following variables may be present for this
particular unit:

Unit scope

• The objective of the failure analysis and evaluation process

may be to determine fault rectification measures, to effect
variation in system characteristics and parameters or to
enhance system performance

• Wheeled mobile plant covers all mobile plant other than

those with tracked undercarriage. Included are loaders,
dump trucks, graders, scrapers, industrial tractors, material
handling machines, agricultural harvesters and other rural
equipment

• Transmission systems to be covered in this unit are to

include mechanical, power shift and automatic
transmissions with integrated computer controls and the
clutches, torque converters, drive lines, differentials and
final drive sub-systems

• Transmission system faults covered by this unit are to

include abnormal component wear, clutch operations,
clutch pack slippage, contamination, drive line phasing and
alignment, hard shifting, leaks, loose mountings,
lubrication, modulation, noises, operating temperature,
system pressures, torque converter slippage, vibrations

• Transmission system failures covered by this unit are to

include indirect faults caused by the influence of external
systems which may or may not be faulty in their primary
operations

AURT5721A Analyse and evaluate wheeled mobile plant transmission system faults

Automotive Industry RS&R

490

AUR99 Version 4.00 Review by 30 June 2004

RANGE STATEMENT

Unit context

• OH&S requirements include vehicle industry regulations,

safety management systems, hazardous substances and
dangerous goods code and safe operating procedures

• Work is carried out in accordance with legislative

obligations, Australian Design Rules, environmental
legislation, relevant health regulations, manual handling
procedures and organisation insurance requirements

• Work requires individuals to demonstrate research,

analytical, judgement and problem solving skills in the
diagnosis of faults

Evaluative criteria

• Evaluative criteria, sometimes referred to as success

factors, detail the criteria against which the achievement of
the objectives of the analysis are judged. They are to
include statistically based criteria and may include other
measures

Isolation procedures

• Equipment isolation procedures are to industry and

enterprise standards

Testing equipment

• Testing equipment is to include computer-based diagnostic

systems-micrometers, multi-meters, pressure gauges,
spring compression testers, tachometer, temperature
gauges and verniers

Tests

• Tests to be conducted are to include component wear,

lubricant sampling, operating temperature, pressure (torque
converter and transmission pressure), torque converter
stall, transmission clutch slippage, sensor integrity and
function, wiring harness integrity, and diagnosis for
module and parts replacement in related electrical and
electronic control systems

Personal protective
equipment

• Personal protective equipment is to include that prescribed

under legislation, regulations and enterprise policies and
practices

Information and
procedures

• Workplace procedures relating to the use of tools and

equipment

• Workplace procedures relating to reporting and

communication

• Manufacturer/component supplier specifications and

application procedures for testing equipment and material

• Manufacturer/component supplier specifications,

schematics and operational procedures related to wheeled
mobile plant transmission systems

Automotive Industry RS&R

AURT5721A Analyse and evaluate wheeled mobile plant transmission system faults

AUR99 Version 4.00 Review by 30 June 2004

491

RANGE STATEMENT

Information and
procedures (continued)

• Australian Design Rules

• Vehicle industry regulations

• Vehicle industry publications related to emerging

transmission system technology and technology changes

EVIDENCE GUIDE

The Evidence Guide identifies the critical aspects, knowledge and skills to be demonstrated to
confirm competency for this unit. This is an integral part of the assessment of competency and
should be read in conjunction with the Range Statement.

Critical aspects of
evidence

• Interpret work order and locate and apply relevant

information

• Apply safety requirements including the isolation of

equipment and the use of personal protective equipment

• Follow work instructions, operating procedures and

inspection processes to:

•

minimise the risk of injury to self and others

•

prevent damage and wastage of goods, equipment
and products

•

maintain required production output and product
quality

• Complete failure analyses on a minimum of three (3)

wheeled mobile plant transmission systems with real or
simulated multi-system and intermittent faults and identify,
evaluate, select and record the most appropriate
rectification measure

• Analyse and validate or recommend variations to a

minimum of two (2) available repair/modification
procedures for wheeled mobile plant transmission systems

• Accurately record and report the diagnostic process and

findings and recommended rectification for two of the
above

• Work effectively with others

• Modify activities to cater for variations in workplace

context and environment

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