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Elements and Performance Criteria

  1. Prepare to change dies or cores
  2. Shut down extruder
  3. Change set-up
  4. Restart and test-run the new set-up
  5. Anticipate and solve problems

Range Statement

This field allows for different 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.

Regulatory framework

The latest version of all legislation, regulations, industry codes of practice and Australian/international standards, or the version specified by the local regulatory authority, must be used.

Applicable legislation, regulations, standards and codes of practice include:

health, safety and environmental (HSE) legislation, regulations and codes of practice relevant to the workplace, manual handling and hazardous materials

Australian/international standards relevant to the materials being used and products being made

any relevant licence and certification requirements.

All operations to which this unit applies are subject to stringent HSE requirements, which may be imposed through state/territory or federal legislation, and these must not be compromised at any time. Where there is an apparent conflict between performance criteria and such requirements the legislative requirements take precedence.

Procedures

All operations must be performed in accordance with relevant procedures.

Procedures are written, verbal, visual, computer-based or in some other form, and include one or any combination of:

emergency procedures

work instructions

SOPs

safe work method statements (SWMS)

formulas/recipes

batch sheets

temporary instructions

any similar instructions provided for the smooth running of the plant.

Tools and equipment

Tools and equipment include one or more of:

hand carts and trolleys

hoists/lifting equipment not requiring any special permits or licences

basic hand tools

hand tools

relevant personal protective equipment (PPE).

Hazards

Hazards must be identified and controlled. Identifying hazards requires consideration of:

weight, shape, volume of materials to be handled

hazardous products and materials

hot surfaces

sharp edges, protrusions or obstructions

slippery surfaces, spills or leaks

heat, smoke, dust, vapours or other atmospheric hazards

electricity

gas

gases and liquids under pressure

structural hazards

equipment failures

machinery, equipment, product mass

other hazards that might arise

Non-routine problems

Non-routine problems must be resolved by applying operational knowledge to develop new solutions, either individually or in collaboration with relevant experts, to:

determine problems needing action

determine possible fault causes

develop solutions to problems which do not have a known solution

follow through items initiated until final resolution has occurred

report problems outside area of responsibility to designated person.

Non-routine problems are unexpected problems or variations of previous problems and include one or more of:

corrosion of die surface

inadequate fitting

faulty components

machine malfunction

variation in product.

Operational knowledge includes one or more of:

procedures

training

technical information such as journals, engineering specifications

remembered experience

relevant knowledge obtained from appropriate people.


Performance Evidence

Evidence required to demonstrate competence in this unit must be relevant to and satisfy the requirements of the elements and performance criteria and demonstrate the ability to:

read and interpret procedures and job specifications

plan and perform shutdown procedures for extruder and downstream equipment

remove, clean and store die according to procedures

select dies, calibration sleeves, seals and tools and install replacement die to meet specifications

set machine conditions for new die

check the installation and operation of new die to identify conformance and/or non-conformance to specifications

make adjustments to settings and equipment operation to rectify variations in equipment operation or product quality

identify hazards and apply relevant hazard controls

distinguish between causes of problems/alarm/fault indications, such as:

operational problems

instrument failure/malfunction

electrical failure/malfunction

mechanical failure/malfunction

wrong readings

equipment design deficiencies

product parameters (temperature, flows, pressure and levels)

resolve non-routine problems

communicate effectively with team/work group and supervisors

complete workplace records

do basic arithmetical manipulations, including additions, subtractions, divisions, fractions and percentages.


Knowledge Evidence

Must provide evidence that demonstrates knowledge relevant to their job sufficient to fulfil their job role, including knowledge of:

function and principles of operation of extrusion equipment

methods of connecting extrusion dies to machines

extruder and ancillary equipment shut down processes

impact of incorrect or faulty fitting

the function of each machine setting and the appropriate ranges of settings for specific dies

factors which may affect product quality or production output and appropriate remedies

routine and non-routine problems that may arise, the range of possible causes and appropriate actions

organisation procedures relevant to the work environment/job role

hierarchy of control

hazards that may arise in the job/work environment and:

their possible causes

potential consequences

appropriate risk controls.