FWPWPP3211
Maintain caul plates and screens


Application

This unit of competency describes the outcomes required to clean, inspect and replace caul plates and screens in laminating and pressing equipment.

The unit applies to production operators and technicians who maintain caul plates and screens in a forest and wood products factory setting.

No licensing, legislative, regulatory, or certification requirements apply to this unit at the time of publication.


Elements and Performance Criteria

Elements describe the essential outcomes.

Performance criteria describe the performance needed to demonstrate achievement of the element. Where bold italicised text is used, further information is detailed in the range of conditions.

1. Prepare for maintenance

1.1 Review work order and where required check with appropriate personnel.

1.2 Select appropriate repair, maintenance and personal protective equipment and check for operational effectiveness.

1.3 Remove caul plates and screens for maintenance from designated machinery.

1.4 Plan maintenance process in line with work order.

2. Change, clean and polish caul plates

2.1 Follow organisational safety procedures and manufacturer’s recommendations throughout all maintenance and repair processes.

2.2 Identify plates requiring cleaning and move from circuit to plate rack.

2.3 Process plates through full cleaning cycle; inspect for defects and separate for repair where required.

2.4 Dry plates, prepare for use and return to circuit.

2.5 Polish plates using polishing table and head.

2.6 Store polished plates for use in line with work order.

2.7 Store or dispose of unused chemicals in line with environmental protection practices.

3. Prepare backing screens

3.1 Roll screens from plate and secure.

3.2 Process screens through full cleaning cycle; stack and inspect for faults.

3.3 Identify defective screens, remove and dispose of these in line with environmental protection practices.

4. Remove and replace transport plates

4.1 Coordinate load shifting and transport requirements to remove and replace transport plates with minimal downtime.

4.2 Identify defective plates, remove from circuit and dispose of these in line with environmental protection practices.

4.3 Prepare and fit replacement plates.

4.4 Record and report process outcomes and equipment faults to appropriate personnel.

Evidence of Performance

A person demonstrating competency in this unit must satisfy all of the elements, performance criteria and foundation skills of this unit. If a specific volume or frequency is not stated below, then evidence must be provided that the following requirements have been performed on at least one occasion:

complete maintenance jobs in line with individual work orders

for each of the above jobs complete the following maintenance and repair activities:

process caul plates and screens through the full cleaning cycle which may be via chemical or heat treatment baths

polish caul plates to ensure optimum operation

inspect caul plates, screen and transport plates for defects and process for repair or dispose of.


Evidence of Knowledge

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

environmental protection practices for maintaining and repairing cauls and screens:

reducing water and energy use

cleaning plant, tools and equipment

disposing of, recycling and reusing defective materials

disposing of hazardous substances

operational purpose and features of caul plates, screens and transport plates

purpose, features and operation of tools and equipment used to maintain and repair caul plates and screens:

chemical baths

heat treatment baths

polishing table and machinery

methods used to remove and replace caul and transport plates

typical defects and methods used to assess condition of caul plates, screens and transport plates:

buckling

buildup of board product

marking of plates

dents

characteristics of metal used in caul plates and screens and how they respond to chemical and heat cleaning processes and polishing in the case of caul plates

polishing techniques to ensure caul plate surfaces are smooth for optimum board separation

methods used to safely handle and store chemicals used in the cleaning process

organisational procedures specific to maintaining and repairing caul plates and screens:

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 process outcomes and equipment faults.


Assessment Conditions

The following resources must be made available:

equipment used to maintain and repair caul plates and screens:

chemical or heat treatment baths

polishing table and machinery

hand-held tools

machinery containing caul plates and screens

caul plates

screens

transport plates

personal protective equipment suitable for maintaining and repairing caul plates and screens

manufacturers’:

safety data sheets for chemicals

instructions for equipment use

recommendations for cleaning and repairing equipment

work order with specific instructions for maintenance of caul plates and screens in designated equipment

template documents for recording process outcomes and equipment faults

relevant personnel for the purposes of communicating information

organisational procedures for maintaining and repairing caul plates and screens.

Competency is to be assessed in the workplace or a simulated environment that accurately reflects performance in a real workplace setting.

Assessor requirements

Assessors must:

hold the appropriate assessor competency standards as outlined in regulations; and

be able to demonstrate vocational competencies at least to the level being assessed; and

be able to demonstrate how they are continuing to develop their VET knowledge and skills as well as maintaining their industry currency and assessor competence.


Foundation Skills

This section describes those core and employment skills that are essential to performance and are not explicit in the performance criteria.

Numeracy skills to:

identify and set cycle time for chemical and heat treatment baths

read basic numerical machine settings.

Oral communication skills to:

ask questions and actively listen to clarify contents of work orders.

Reading skills to:

interpret:

workplace health and safety and other organisational procedures

work orders

safety data sheets for chemicals

manufacturers’ instructions and maintenance recommendations.

Writing skills to:

complete accurate basic records for process outcomes and equipment faults.

Planning and organising skills to:

efficiently and logically sequence the stages of repair and maintenance activities using work order to guide activities.

Problem-solving skills to:

identify and dispose of defective materials

recognise faulty equipment and resolve by reporting or rectifying.

Technology skills to:

select and use appropriate hand-held tools and personal protective equipment to complete maintenance and repairs

use chemical and heat treatment baths to maintain caul plates and screens.


Range Statement

Not Applicable


Sectors

Wood Panel Products