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Elements and Performance Criteria

1. Prepare for work
   • Receive and give shift handover
   • Identify work requirements
   • Identify and control hazards
   • Coordinate with appropriate personnel
   • Check for recent work undertaken on leaching equipment
   • Note any outstanding/incomplete work
   • Check operational status of leaching equipment
2. Operate leaching equipment in accordance with procedures
   • Identify the type of leaching equipment and duty
   • Adjust feed rate and reagents as appropriate to type of leaching equipment and duty
   • Complete routine checks, logs and paperwork, taking appropriate action on unexpected readings and trends
3. Recognise and take action on abnormal situations in accordance with procedures
   • Monitor leaching equipment and ancillary equipment frequently and critically throughout shift using measured/indicated data and senses
   • Identify impacts of any changes upstream and downstream
   • Recognise situations which may require action
   • Resolve routine problems
   • Take actions on other abnormal situations to make safe and have the situation resolved
4. Isolate and de-isolate leaching equipment
   • Complete any required pre-start checks
   • Start up/shut down/changeover leaching equipment according to the plant type and duty in liaison with other personnel
   • Isolate leaching equipment
   • Make safe for required work
   • Check leaching equipment is ready to be returned to service
   • De-isolate and prepare leaching equipment for return to service

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, and include one or more of the following: legislative requirements, including work health and safety (WHS) industry codes of practice and guidelines environmental regulations and guidelines Australian and other standards licence and certification requirements All operations to which this unit applies are subject to stringent health, safety and environment (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 HSE requirements, the HSE 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, include one or more of the following: emergency procedures work instructions standard operating procedures (SOPs) safe work method statements (SWMS) formulas/recipes batch sheets temporary instructions any similar instructions provided for the smooth running of the plant
Hazards	Hazards include one or more of the following: electricity gas gases and liquids under pressure structural hazards structural collapse equipment failures industrial (machinery, equipment and product) equipment or product mass noise, rotational equipment or vibration plant services (steam, condensate and cooling water) working at heights, in restricted or confined spaces, or in environments subjected to heat, noise, dusts or vapours flammability and explosivity hazardous products and materials unauthorised personnel sharp edges, protrusions or obstructions slippery surfaces, spills or leaks extreme weather other hazards that might arise
Routine problems	Routine problems must be resolved by applying known solutions. Routine problems are predictable and include one or more of the following: seal/gasket leaks pressure loss/low flow blockages/build-up/fouling erosion/wear ancillary equipment problems Known solutions are drawn from one or more of the following: procedures training remembered experience Non-routine problems must be reported according to according to relevant procedures.
Ancillary equipment	Ancillary equipment includes one or more of the following: agitators pumps spray nozzles/heads
Logs and reports	Logs and reports include one or more of the following: paper or electronic-based logs and reports verbal/radio reports reporting items found which require action
Action	Action in accordance with procedures includes the following: determining problems needing action accessing and applying relevant technical and plant data applying appropriate problem solving techniques to determine possible fault causes rectifying problem using appropriate solution within area of responsibility following through items initiated until final resolution has occurred reporting problems outside area of responsibility/ability to designated person
Resolve routine problems	Resolving routine problems includes one or more of the following: making adjustments to the equipment (e.g. flow and pressure) carrying out minor maintenance within operator's skill level identifying and reporting problems outside operator's scope of ability identifying and controlling hazards related to leaching equipment and surrounding areas
Start up/shut down as required	Start up/shut down as required includes the following: start up and shut down to/from normal operating conditions start up and shut down to/from isolated, cold or empty start up and shut down to/from other conditions/situations experienced on the plant
Work requirements	Work requirements come from briefings, handovers and work orders and include one or more of the following: compliance documentation product specifications nature and scope of tasks achievement targets operational conditions lighting conditions plant or equipment defects hazards and potential hazards coordination requirements or issues

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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 include the ability to:

start up and shut down leaching equipment

monitor and operate leaching equipment to meet specifications

recognise early warning signs of equipment/processes needing attention or with potential problems

determine the most likely cause of routine problems

take action to ensure a timely return to full performance

isolate and de-isolate equipment

identify hazards and apply hazard control procedures.

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Knowledge Evidence

Evidence must be provided that demonstrates knowledge of:

process parameters and limits, including temperature, pressure, flow and pH

routine problems, faults and their symptoms and the corrective action to be taken

relevant alarms and actions

all items on a schematic of the leaching equipment and functions of each

physics and chemistry relevant to leaching equipment and the processes used

function and troubleshooting of major internal components and their problems, such as internals, supports, nozzles or agitators

hierarchy of control

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

their possible causes

potential consequences

appropriate risk controls.

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