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 diagnose and rectify track type undercarriage. 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 diagnosing and rectifying track type undercarriage, 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, supervisor's 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

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 task-related information

checking for conformance to specification

checking track type undercarriage components for wear and damage using appropriate tools

identifying worn or damaged components for repair or replacement

checking the track frame for alignment

identifying variations from alignment specifications

removing and replacing track undercarriage components

setting track tension to specification

adjusting clearances to specification

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 operating principles of track type undercarriage

the procedures, tools, techniques and equipment for checking track type undercarriage components for wear

the reasons for selecting the chosen tools, techniques and equipment

the specifications of the track type undercarriage components

the action to be taken to overcome the wear and/or damage detected

the procedures, tools, techniques and equipment for aligning track frames

the procedures for removing and replacing track type undercarriage components

the precautions to be taken when removing and replacing track type undercarriage components

the procedures for setting track tension

the procedures for adjusting clearances

hazards and control measures associate with testing and rectifying track type undercarriage, including housekeeping

safe work practices and procedures

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.