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Elements and Performance Criteria

1. Identify and analyse causes of system faults
   • Complete routine visual or physical walk around inspections of plant to identify system faults in line with organisational safety and standard operating procedures.
   • Interpret alarm system alerts and observations to diagnose fault type.
   • Access plant operating logs to assist diagnosis.
   • Sample and test stock for variations from quality specifications; interpret and record results.
   • Analyse all information collected to identify fault type and location.
   • Report fault and communicate proposed actions to rectify.
2. Rectify system and equipment faults.
   • Follow organisational safety and standard operating procedures to shut down and isolate equipment prior to fault rectification.
   • By-pass faulty equipment where the process allows.
   • Repair or replace faulty equipment and make corrective system adjustments.
   • Complete routine preventative maintenance as required.
   • Restore system operations and advise relevant personal of return to normal operation.
3. Rectify product quality faults.
   • Identify variations in specified quality of stock, chemicals and water through routine visual observations.
   • Sample and test stock for variations from quality specifications; interpret and record results.
   • Adjust processes to rectify out-of-specification product.
4. Record and report faults and rectification process
   • Document system and product faults.
   • Record and report diagnostic and corrective action processes to relevant personnel

Range Statement

Not Applicable

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Performance Evidence

A person demonstrating competency in this unit must satisfy all of the elements, performance criteria and foundation skills of this unit, and must be able to provide evidence that they can:

identify and rectify faults in plant, equipment and product quality and system performance, at least twice in line with required enterprise intervals, relevant to stock preparation systems

select and use appropriate trouble shooting methods in stock preparation systems

use electronic and other control systems, including portable control devices, touch screens or robotics to control equipment and processes as required during troubleshooting

communicate effectively and working safely with others, in the work area when rectifying stock preparation systems

identify, analyse causes and rectify system and equipment faults for stock preparation system types including:

refining system

blending system

proportioning system

broke system

cleaning system

water recovery system

chemical and additive plants

sample and test stock for variations from quality specifications

on the completion of fault rectification jobs, complete accurate detailed records for system and product faults, diagnostic and corrective action processes.

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Knowledge Evidence

A person competent in this unit must be able to demonstrate knowledge of:

system layout for stock preparation systems

purpose, features and operation of stock preparation system plant, operating parameters and allowable variations

operation and application of electronic and other control systems

relationships between all components of stock preparation plant, processes and associated services

troubleshooting methods that can be applied across system and problem faults in stock preparation systems including:

equipment faults

deviations from operational specifications for equipment

deviations from quality specifications for stock

stock preparation processes and equipment required to:

shut down equipment

restore system operation

purpose of, and processes for sampling and testing stock quality, plant and system operations

quality requirements for different types of stock

effect of process adjustments on stock quality and productivity

safe handling of materials and chemicals

organisational procedures:

standard operating procedures specific to inspecting and rectifying faulty stock preparation equipment and product

workplace health and safety with particular emphasis on equipment lock out, use of personal protective equipment and handling hazardous substances

communication reporting lines

recording and reporting system and product faults, diagnostic and corrective action processes.

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