Elements and Performance Criteria

RANGE STATEMENT
The range statement relates to the unit of competency as a whole. It allows for different work environments and situations that may affect performance. Bold italicised wording, if used in the performance criteria, is detailed below. Essential operating conditions that may be present with training and assessment (depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts) may also be included.
Failure analysis and evaluation process
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
Wheeled mobile plant covers all mobile plant other than that with tracked undercarriage. Included are loaders, dump trucks, graders, scrapers, industrial tractors, material handling machines, agricultural harvesters and other rural equipment.
Steering systems
Steering systems to be covered in this unit are to include power-assisted, full hydrostatic and steer-by-wire systems for front, rear, all wheel drive, and articulated arrangements.
Steering failures
Steering failures covered by this unit are to include those in mechanical, hydraulic and electrical/electronic systems, including alignment, control systems, emergency systems, tyre wear, vibration, directional stability, calibration/ adjustment specifications, contamination, component specifications, component assembly, component damage and system modifications.
Suspension systems
Suspension systems are to cover rigid frame, oscillating axles, hydrostatic, oil/gas suspension units and cushion hitch.
Suspension system failures
Suspension system failures covered by this unit are to include alignment, hydraulics, ride height, component damage and systems modifications.
Steering and suspension system failures
Steering and suspension 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.
Unit context
WHS 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, 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 tape measures, pressure gauges, flow meters, tyre pressure gauges, string line, multimeter, data readers, computerised diagnostic systems and may include laser and light alignment equipment.
Tests
Tests to be conducted are to include tyre pressures, tyre tread, toe-in, toe-out, system pressures, frame alignment, ride height, wheel bearing specification, leveller operation, sensor and actuator integrity.
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 tooling and equipment.
Workplace procedures relating to reporting and communication.
Manufacturer/component supplier specifications and application procedures for testing equipment and materials.
Manufacturer/component supplier specifications, schematics and operational procedures related to wheeled mobile plant steering and suspension systems.
Australian Design Rules.
Vehicle industry regulations.
Vehicle industry publications related to emerging steering and suspension system technology and technology changes.

EVIDENCE GUIDE
The evidence guide provides advice on assessment and must be read in conjunction with the performance criteria, required skills and knowledge, range statement and the Assessment Guidelines for the Training Package.
Overview of assessment

Critical aspects for assessment and evidence required to demonstrate competency in this unit
Interpret work order and locate and apply information.
Apply safety requirements, including the isolation of equipment and 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 wheeled mobile plant steering and suspension systems with real or simulated multi-system and intermittent faults and identify, evaluate, select and document the most appropriate rectification measure.
Analyse and validate or recommend variations to a minimum of two available repair/modification procedures for wheeled mobile plant steering and suspension systems.
Document 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.
Context of, and specific resources for assessment
Assessment may occur on the job or in a workplace simulated facility with process equipment, material, work instructions and deadlines.
Access to a 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 work environment.
Method of assessment
Assessment of this unit of competence 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 competence is able not only to be satisfied under the particular circumstances, but is able to be transferred to other circumstances.
Competence in this unit may be assessed in conjunction with other functional units which together form part of the holistic work role.