Unit of competency Outline

Date retreived
23/07/2026 2:28 AM AWST

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Lay up rubber lining or lag pulleys

Lay up rubber lining or lag pulleys

Unit of competency
National Code
PMBPROD241
State Code
BAJ20
TGA Status
Replaced
DTWD Status
Replaced
Current Release Number
1.00
Current Release Date
22/06/2016
View on TGA
State Implementation and Classification
Approved Date
05/08/2016
Field of Education
030305 - Materials Engineering
Original Release Date
05/08/2016
Nominal Hours
30
Description
This unit of competency covers the skills and knowledge required to lay up rubber or similar materials to line vessels or components or to lag pulleys. Vessels and tanks are typically lined in order to retard abrasion, impact or corrosion. The re-lagging of pulleys for conveyors provides a positive drive. This unit of competency applies to operators who are required to prepare materials and surfaces, plan and sequence the work, position, join and cure the lining/lagging and recognise routine and non-routine problems and take appropriate action.The key factors are the preparation of the surfaces to be lined/lagged and the successful application of the rubber to the surfaces without contaminating the materials. This unit of competency is typically performed by operators working either independently or as part of a work team.This unit of competency applies to lining/lagging that is carried out in a workshop or other off-site facility. No licensing, legislative or certification requirements apply to this unit at the time of publication.
Notes
Elements and Performance Criteria
1 Plan rubber lining or lagging work
  • 1.1 Review specifications and work order documentation
  • 1.2 Identify hazards and risk controls, including emergency evacuation and adequate ventilation, including breathing apparatus, where required
  • 1.3 Plan work, including materials, sequences, times and process stages
  • 1.4 Plan to minimise downtime, economically use materials and meet repair quality specifications
  • 1.5 Assemble equipment, tools and materials required, checking them for condition, quality and compliance tags
2 Prepare surfaces for rubber lining or lagging
  • 2.1 Lay out materials in an appropriate contamination free area
  • 2.2 Ensure materials are clean and free of debris and damage
  • 2.3 Identify non-conforming materials and report, as required
  • 2.4 Examine component, vessel or pulley and ensure the surfaces to be lined or lagged are free of defects and contaminants
  • 2.5 Plan the sequence for application of the adhesives and materials
  • 2.6 Prepare lining or lagging surfaces
  • 2.7 Monitor surface coatings for setting time and manage the staggered supply of adhesives and materials, where appropriate
3 Lay up rubber lining or lagging
  • 3.1 Ensure adequate ventilation is provided and monitored during the laying up process
  • 3.2 Monitor any confined space activity and conform to regulations and procedures
  • 3.3 Position lining/lagging segments according to the lay-up plan
  • 3.4 Exclude entrapped air and ensure complete contact between the lining/lagging and surface is obtained
  • 3.5 Ensure joins are sealed and adhered properly with no gaps or overlaps
  • 3.6 Check for slips, sagging or other separation of the lining/lagging from the surface
  • 3.7 Ensure lining/lagging material is finished off as required at the extremities
  • 3.8 Cure rubber lining/lagging where appropriate
4 Clean work area
  • 4.1 Clean, inspect and store tools and equipment used
  • 4.2 Tag unserviceable tools and equipment, identify faults and inform relevant personnel
  • 4.3 Clean work area and return to approved condition
  • 4.4 Dispose of waste or recycle according to procedures
  • 4.5 Complete appropriate workplace documentation
5 Respond to routine problems to procedures
  • 5.1 Recognise known faults that occur during the operation
  • 5.2 Identify and take action on causes of routine faults
  • 5.3 Log problems as required
  • 5.4 Identify non-routine process and quality problems and take appropriate action
No information
No information
Replaces
State Code National Code Title Type
W7575 PMBPROD241C Lay up rubber lining or lag pulleys Unit of competency
Replaced By
State Code National Code Title Type
ODB28 PMBPROD241E Install rubber lining or pulley lagging using lay-up techniques Unit of competency