Application
This unit describes the performance outcomes required to analyse and evaluate faults in mobile plant hydraulic systems in order to initiate action to sustain, vary or enhance performance. It involves identifying, evaluating, selecting, justifying and documenting the most appropriate rectification method or variation to the rectification method. The unit includes the analysis of multi-system and intermittent faults which may be caused by operating in adverse conditions.
It applies to those working in the automotive service and repair industry. The hydraulic systems include those of agricultural machinery or mobile plant machinery, which may be wheeled or track type machinery.
No licensing, legislative, regulatory or certification requirements apply to this unit at the time of publication.
Elements and Performance Criteria
Elements Elements describe the essential outcomes. | Performance Criteria Performance criteria describe the performance needed to demonstrate achievement of the element. Where bold and italicised text is used, further information is detailed in the range of conditions section. |
1. Identify and confirm the work requirement | 1.1 Objective of the analysis and evaluation is determined from workplace instructions 1.2 Specifications for mobile plant hydraulic system are sourced and interpreted 1.3 System faults, deficiencies or discrepancies are identified and confirmed 1.4 Hazards associated with the work are identified and risks are managed according to workplace procedures and safety and environmental requirements |
2. Prepare for analysis and evaluation | 2.1 Evaluation criteria are developed or adopted to meet the objective of the analysis and evaluation 2.2 Analytical and evaluative methodology is developed or identified from technical information 2.3 Testing equipment is prepared according to manufacturer specifications and workplace procedures 2.4 Tools and materials required to support the diagnostic procedure are identified, selected and prepared for use 2.5 Mobile plant hydraulic system and components are prepared for the diagnostic process |
3. Carry out failure analysis | 3.1 Selected analytical and evaluative methodology is followed according to manufacturer specifications and workplace procedures 3.2 Tests are carried out according to manufacturer specifications, workplace procedures, and safety and environmental requirements 3.3 Analytical and other diagnostic findings are verified, as required, by using reliable alternative or optional processes 3.4 Analytical findings and results are assessed against evaluation criteria 3.5 Valid conclusions are drawn from available evidence and documented according to workplace requirements |
4. Make recommendations | 4.1 Options for responding to the objective are determined from further research of technical support information 4.2 Rectification method is selected from an analysis of the options, operating conditions, regulatory requirements and financial implications 4.3 Report is prepared specifying analysis and evaluation process, and detailing and justifying rectification method or variation to the rectification method |
5. Complete work processes | 5.1 Final inspection is made to ensure work is to workplace expectations 5.2 Work area is cleaned, waste and non-recyclable materials are disposed of, and recyclable material is collected 5.3 Tools and equipment are checked and stored according to workplace procedures 5.4 Workplace documentation is processed according to workplace procedures |
Evidence of Performance
Before competency can be determined, individuals must demonstrate they can perform the following according to the standards defined in this unit’s elements, performance criteria, range of conditions and foundation skills:
analyse and evaluate faults in the mobile plant hydraulic system of three different mobile plant machinery using flow meters, pressure gauges and temperature sensing devices.
Evidence of Knowledge
Individuals must be able to demonstrate knowledge of:
work health and safety (WHS) and occupational health and safety (OHS) requirements relating to analysing and evaluating faults in mobile plant hydraulic systems, including procedures for tagging out and isolating machines
environmental requirements, including procedures for trapping, storing and disposing of oils and fluids released from hydraulic systems
principles and processes involved in planning and implementing analysis and evaluation of mobile plant hydraulic system faults
design and planning of diagnostic procedures of mobile plant hydraulic system faults, including procedures for diagnosing:
hydraulic faults
mechanical faults
electrical faults
procedures for analysing and evaluating mobile plant hydraulic system faults, including:
system failure analysis
component failure analysis
types, functions, operation and limitations of hydraulic systems and components: including:
reservoirs
accumulators
pumps
valves
actuators
motors
conductors and connectors
hydraulic fluids
hydraulic symbols and system schematic
testing procedures of mobile plant hydraulic systems, including:
system pressure, flow rates and temperature
cycle time performance
sensor, actuator and wiring harness integrity
types, functions, operation and limitations of diagnostic testing equipment required to analyse and evaluate faults in mobile plant hydraulic systems, including flow meters, pressure gauges and temperature sensing devices
procedures for documenting and reporting the analysis and evaluation process.
Assessment Conditions
Assessors must satisfy NVR/AQTF assessor requirements.
Competency is to be assessed in the workplace or a simulated environment that accurately reflects performance in a real workplace setting.
Assessment must include direct observation of tasks.
Where assessment of competency includes third-party evidence, individuals must provide evidence that links them to the mobile plant hydraulic systems that they have worked on, e.g. repair orders.
Assessors must verify performance evidence through questioning on skills and knowledge to ensure correct interpretation and application.
The following resources must be made available:
automotive repair workplace or simulated workplace
workplace instructions
manufacturer mobile plant hydraulic system specifications
three different mobile plant machinery with hydraulic system faults
diagnostic equipment for mobile plant hydraulic systems
tools, equipment and materials appropriate for analysing and evaluating mobile plant hydraulic systems.
Foundation Skills
This section describes those language, literacy, numeracy and employment skills that are essential to performance and are not explicit in the performance criteria.
Skills | Description |
Learning skills to: | apply learning and processes to different situations. |
Reading skills to: | research, organise and interpret technical information relating to mobile plant hydraulic systems. |
Writing skills to: | legibly and accurately fill out workplace documentation when reporting failure analysis findings document and complete reports. |
Numeracy skills to: | use mathematical ideas and techniques to complete measurements, calculate analytical requirements, calibrate testing equipment and present analytical results. |
Planning and organising skills to: | plan own work requirements and prioritise actions to achieve required outcomes and ensure tasks are completed within workplace timeframes. |
Problem solving skills to: | determine and justify the rectification method. |
Technology skills to: | use specialised mobile plant hydraulic system diagnostic equipment. |
Range Statement
This section specifies work environments and conditions that may affect performance. Essential operating conditions that may be present (depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts) are included. Bold italicised wording, if used in the performance criteria, is detailed below.
Safety and environmental requirements must include: | work health and safety (WHS) and occupational health and safety (OHS) requirements, including procedures for tagging out and isolating machines environmental requirements, including procedures for trapping, storing and disposing of oils and fluids released from hydraulic systems. |
Analytical and evaluative methodology must include: | diagnostic process, sequence, tests and testing equipment. |
Testing equipment must include: | stop watches, pressure gauges, flow meters, multimeters, electronic scan tools and temperature sensing devices. |
Tests must include: | pressure, flow and temperature, cycle time performance, filter inspection, sequencing, sensor and actuator integrity, and wiring harness integrity. |
Sectors
Technical
Competency Field
Mechanical - Mobile Plant