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Elements and Performance Criteria

1. Assess suspension systems
   • Steering geometry, alignment and suspension systems operation and terminology are understood.
   • Components are assessed for security, wear and faults and corrective action is determined.
   • Spring arrangements, control arms/links, dampening and control devices are tested for correct operation.
   • Axle alignment/tracking is assessed and variance from specification is determined.
   • Auto/manual levelling devices performance is tested.
2. Maintain suspension systems
   • Axles are aligned to specification.
   • Ride height is adjusted to specification.
   • Suspension system is re-gassed to specification.
   • Suspension components are safely removed and replaced according to standard procedures.

Required Skills

Required skills

Look for evidence that confirms skills in reading interpreting and following information on written job instructions specifications standard operating procedures charts lists drawings and other applicable reference documents planning and sequencing operations checking taskrelated information checking the suspension components for wear faults and security testing spring arrangements control armslinks and dampening devices for correct operation checking axle alignmenttracking for conformance to specification identifying variances of axle alignment from specification testing automaticmanual levelling devices for correct operation aligning axles to specification adjusting the ride height to specification regassing the suspension system to specification removing and replacing suspension components undertaking calculations and numerical operations within the scope of this unit recording and reporting service activities

Required knowledge

Look for evidence that confirms knowledge of the operation of suspension systems and the effects of steering geometry and alignment the procedures tools techniques and equipment for checking suspension system components for wear faults security and conformance to specification the action to be taken to correct nonconformance to specification the procedures for aligning axles the axle alignment specifications the tools techniques and equipment required to maintain and repair suspension systems the reasons for selecting the chosen tools techniques and equipment the procedures for adjusting ride height the ride height specifications the procedures to be followed in regassing suspension systems the precautions to be taken when regassing suspension systems the procedures for the removal and replacement of suspension systems the precautions to be taken when removingreplacing suspension systems hazards and control measures associate with maintaining and rectifying suspension systems including housekeeping safe work practices and procedures

Evidence Required

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	A person who demonstrates competency in this unit must be able to maintain suspension systems Competency in this unit cannot be claimed until all prerequisites have been satisfied
Critical aspects for assessment and evidence required to demonstrate competency in this unit	Assessors must be satisfied that the candidate can competently and consistently perform all elements of the unit as specified by the criteria including required knowledge and be capable of applying the competency in new and different situations and contexts
Context of and specific resources for assessment	This unit may be assessed on the job off the job or a combination of both on and off the job Where assessment occurs off the job that is the candidate is not in productive work then an appropriate simulation must be used where the range of conditions reflects realistic workplace situations The competencies covered by this unit would be demonstrated by an individual working alone or as part of a team The assessment environment should not disadvantage the candidate This unit could be assessed in conjunction with any other units addressing the safety quality communication materials handling recording and reporting associated with maintaining suspension systems or other units requiring the exercise of the skills and knowledge covered by this unit
Method of assessment	Assessors should gather a range of evidence that is valid sufficient current and authentic Evidence can be gathered through a variety of ways including direct observation supervisors reports project work samples and questioning Questioning techniques should not require language literacy and numeracy skills beyond those required in this unit of competency The candidate must have access to all tools equipment materials and documentation required The candidate must be permitted to refer to any relevant workplace procedures product and manufacturing specifications codes standards manuals and reference materials
Guidance information for assessment

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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.

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