Required skills

technical skills to

select correct replacement tip or sharpening tool for material to be machined

identify worn and damaged cutting tools pilots and arbors

mount and position cutting tools

set machining parameters to achieve job requirements and maximise tool life

use appropriate and sufficient clamping or mounting of the work piece

check that valve seats conform to specifications and workplace requirements

set and measure adjustments to specified tolerances and dimensions

communication skills to

follow oral instructions

report deviations from specifications

interact with customers and team members

literacy skills to

read and interpret routine job instructions specifications drawings and standard operating procedures

identify and analyse technical information

understand quality procedures

numeracy skills to use mathematical ideas and techniques to

calculate time

assess tolerances

apply accurate measurements

calculate material requirements

establish quality checks

problemsolving skills to

locate interpret and apply workplace policies and procedures including manufacturer and component supplier procedures

identify and avoid planning and scheduling problems

prevent time and material wastage

organise work and plan processes

selfmanagement skills to

select and use appropriate equipment materials processes and procedures

follow workplace documentation such as codes of practice and operating procedures

technology skills to use communication devices and computerised equipment to

search and gather supporting material

take locate download and view digital images

Required knowledge

WHS regulations and requirements equipment material and personal safety requirements including personal protective equipment PPE for handling engine cylinder heads and using specialised equipment such as

facing machines

valve refacers

valve spring compressors

ovens and presses

procedures for removing cylinder head from engine block

dismantling methods and procedures

cleaning methods and procedures

procedures for measuring testing and evaluating cylinder heads including

testing hardness of aluminium alloy cylinder heads and procedures for rehardening aluminium alloy cylinder heads

visual inspections

cylinder head crack testing including

dyepenetrant testing

wet and dry magnetic particle testing

vacuum testing

pressure testing

inspecting valve guides and valve seats

procedures for measuring testing and evaluating associated parts including inspecting camshafts valves valve springs valve spring seats valve spring retainers collets and lash caps rocker arms rocker shafts and pushrods

procedures for repairing cylinder heads and associated components including

heat treating aluminium alloy cylinder heads

straightening cylinder heads

repairing cracks in cylinder heads

welding aluminium alloy and cast iron cylinder heads

types of surface finishes for different cylinder head gaskets

surfacing cylinder heads including manifold faces

repairing valve guides valve seats rocker arms and rocker shafts

refacing valves in valve refacer

fitting injector tubes and precombustion chambers

cleaning cylinder heads of residue and swarf

procedures for assembling cylinder heads including

refitting welsh plugs and oil gallery plugs valves springs spring seats retainers collets lash caps camshafts rocker gear cam followers and associated components

reasons for setting valve timing before fitting cylinder head to block

evaluating and setting rocker arm geometry

preparing cylinder block to accept cylinder head

fitting head gaskets and cylinder heads to engine blocks

tightening procedures of cylinder head bolts

Australian standards relating to engine reconditioning

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

The evidence required to demonstrate competency in this unit must be relevant to workplace operations and satisfy all of the requirements of the performance criteria and required skills and knowledge

A person who demonstrates competency in this unit must be able to

observe safety procedures and requirements

select reconditioning methods and techniques appropriate to the circumstances

complete preparatory activity in a systematic manner

conduct reconditioning of a range of cylinder heads according to workplace manufacturer and component supplier requirements

complete reconditioning of cylinder heads within workplace timeframes

complete work without damage to tools and equipment or injury to persons

Context of and specific resources for assessment

Workplace environment that accurately reflects performance in a real workplace setting Performance is demonstrated consistently over a period of time and in a suitable range of contexts

Assessment is to occur

using standard workplace practices and procedures

following safety requirements

applying environmental constraints

Assessment is to comply with relevant

regulatory requirements

Australian standards

industry codes of practice

The following resources must be made available for the assessment of this unit

appropriate worksite

cylinder heads appropriate to the workplace including multivalve OHV and OHC cylinder heads

fixed and portable hand air and power tools and equipment appropriate to reconditioning cylinder heads

specifications and work instructions

Method of assessment

Assessment must satisfy the endorsed Assessment Guidelines of this Training Package

Assessment methods must confirm consistency and accuracy of performance over time and in a range of workplace relevant contexts together with application of required skills and knowledge

Assessment methods must be by direct observation of tasks and include questioning on required skills and knowledge to ensure its correct interpretation and application

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

Competence in this unit may be assessed in conjunction with other units which together form part of a holistic work role

Where applicable reasonable adjustment must be made to work environments and training situations to accommodate ethnicity age gender demographics and disability

Assessment processes and techniques must be culturally sensitive and appropriate to the language and literacy capacity of the candidate and the work being performed

Workplace instructions may include:

Information may include:

Cylinder heads may include:

Tools and measuring equipment may include:

WHS requirements may include:

Environmental requirements are to include:

Inspected, measured and tested may include:

Adjustments/machining may include: