Major Work Activity D - Performs repairs, maintenance, upgrading and testing

Table of Contents

Task D-13 Services vessels and components

Task Descriptor

Boilermakers help to ensure the proper operation of vessels and components by verifying their integrity, repairing or replacing them as needed as per code regulations. Modifying and upgrading existing systems entails replacing components and materials to improve performance or reliability, and can be done during scheduled and unscheduled maintenance. Sometimes, vessels and components cannot be repaired and need to be replaced.

Boilermakers need to know when rigging, fitting and cranes are needed to accomplish the tasks.

Inspecting and testing are important to identify defective and worn components to ensure that the system has been constructed or repaired properly.

D-13.01 - Inspects vessels and components for defects

Essential Skills

Document Use, Thinking, Oral Communication

D-13.01 - Inspects vessels and components for defects
NL NS PE NB QC ON MB SK AB BC NT YT NU
yes yes NV yes yes yes yes yes yes yes NV NV NV
Skills
Reference Code Performance Criteria Evidence of Attainment
D-13.01.01P verify that permit requirements are met permit requirements are met before proceeding with the task at hand
D-13.01.02P clean surfaces surfaces are cleaned for inspection by grinding, chipping or buffing
D-13.01.03P recognize common vessel defects visual inspection is performed to recognize common vessel defects according to specifications
D-13.01.04P recognize common component defects visual inspection is performed to recognize common component defects as confirmed by engineered drawings
D-13.01.05P request non-destructive testing to verify material integrity material integrity is identified by non-destructive testing results
D-13.01.06P report deficiencies and defects to the supervisor or quality control inspector deficiencies and defects are reported to the supervisor or quality control inspector

Range of Variables

Knowledge
Reference Code Learning Outcomes Learning Objectives
D-13.01.01L demonstrate knowledge of inspection procedures to detect defects in vessels and components list common vessel defects and component defects
explain the causes of common vessel defects and component defects
describe inspection procedures of the vessels and components
identify material composition of a vessel or component

Range of Variables

D-13.02 - Prepares vessels and components for servicing

Essential Skills

Document use, Thinking, Working with Others

D-13.02 - Prepares vessels and components for servicing
NL NS PE NB QC ON MB SK AB BC NT YT NU
yes yes NV yes yes yes yes yes yes yes NV NV NV
Skills
Reference Code Performance Criteria Evidence of Attainment
D-13.02.01P locate vessels and components to be serviced vessels and components to be serviced are located according to client specifications
D-13.02.02P identify site modification requirements to be performed site modification requirements to be performed are identified
D-13.02.03P empty, depressurize, isolate and purge vessels vessels are emptied, depressurized, isolated and purged before maintenance begins
D-13.02.04P create access or openings to work area access or openings to work area are created
D-13.02.05P select tools, material and equipment tools, material and equipment are selected according to the task at hand
D-13.02.06P set up tools, materials and equipment tools, materials and equipment are set up in a designated location
D-13.02.07P pre-assemble components components to be installed are pre-assembled according to engineer-approved drawings and specifications

Range of Variables

Knowledge
Reference Code Learning Outcomes Learning Objectives
D-13.02.01L demonstrate knowledge of procedures used to prepare for service of vessels and components identify vessels and components to be serviced
list tools needed to complete the task at hand
describe vessel isolation procedures
identify fasteners and fastening methods required to complete the task at hand
interpret required changes as detailed in engineer-approved drawings and specifications of vessels and components

Range of Variables

D-13.03 - Repairs vessels and components

Essential Skills

Working with Others, Thinking, Numeracy

D-13.03 - Repairs vessels and components
NL NS PE NB QC ON MB SK AB BC NT YT NU
yes yes NV yes yes yes yes yes yes yes NV NV NV
Skills
Reference Code Performance Criteria Evidence of Attainment
D-13.03.01P prepare parent material and repair pieces using tools and equipment work area is prepared for installation of new vessels and components by using preparation methods
D-13.03.02P install components components are installed using hoisting/lifting and moving equipment according to job situation
D-13.03.03P perform orientation, alignment and fitting of components components are oriented, aligned and fit to existing vessels and components using fitting tools and methods according to engineer-approved drawings and specifications
D-13.03.04P fasten components components are fastened to existing vessels and components using fastening methods
D-13.03.05P reinstall components removed during repair preparation components removed during repair preparation are reinstalled

Range of Variables

Knowledge
Reference Code Learning Outcomes Learning Objectives
D-13.03.01L demonstrate knowledge of procedures to prepare vessels and components for repair explain and select preparation methods
D-13.03.02L demonstrate knowledge of procedures to hoist material into place in order to repair vessels and components list hoisting/lifting and moving equipment and explain the advantages and drawbacks of each piece of equipment for a repair situation
D-13.03.03L demonstrate knowledge of procedures to fit material to vessels and components for repair describe fitting tools and methods used to fit new components for a repair and explain the advantages and drawbacks of each method for a repair situation
D-13.03.04L demonstrate knowledge of procedures to fasten material to vessels and components for repair describe fastening methods used to fasten new components for a repair and explain the advantages and drawbacks of each method for a repair situation

Range of Variables

D-13.04 - Performs preventative maintenance and upgrades

Essential Skills

Thinking, Oral Communication, Working with Others

D-13.04 - Performs preventative maintenance and upgrades
NL NS PE NB QC ON MB SK AB BC NT YT NU
yes yes NV yes yes yes yes yes yes yes NV NV NV
Skills
Reference Code Performance Criteria Evidence of Attainment
D-13.04.01P select and use tools and equipment tools and equipment are selected and used according to task at hand
D-13.04.02P remove contaminants and corrosion on vessels and components contaminants and corrosion on vessels and components are removed using cleaning methods
D-13.04.03P plug tubes to isolate them from system tubes are plugged to prevent further damage to the system
D-13.04.04P install shielding materials to prevent excessive wear on vital components shielding materials are installed to prevent wear
D-13.04.05P pull tube bundle from heat exchanger for cleaning and inspection tube bundles are pulled, cleaned and inspected and defects identified
D-13.04.06P repair defects defects are repaired according to specifications
D-13.04.07P reinstall or replace tube bundles tube bundles are reinstalled or replaced
D-13.04.08P tighten loose components and replace missing hardware according to job specifications components are in place and are tightened to specifications

Range of Variables

Knowledge
Reference Code Learning Outcomes Learning Objectives
D-13.04.01L demonstrate knowledge of preventative maintenance and upgrade procedures identify vessels and components to be maintained
describe preventative maintenance procedures
describe upgrading procedures
describe cleaning methods and their advantages and drawbacks
identify tube defects
identify compatible materials when selecting replacement hardware or components

Range of Variables

D-13.05 - Tests materials, vessels and components

Essential Skills

Thinking, Document Use, Digital Technology

D-13.05 - Tests materials, vessels and components
NL NS PE NB QC ON MB SK AB BC NT YT NU
yes yes NV yes yes yes yes yes yes yes NV NV NV
Skills
Reference Code Performance Criteria Evidence of Attainment
D-13.05.01P select and use tools and equipment tools and equipment are selected and used according to test procedure
D-13.05.02P perform visual test (VT) VT is completed to confirm that work appears to be free of surface defects and deficiencies
D-13.05.03P prepare components for testing components are prepared for testing by purging, attaching testing equipment and venting
D-13.05.04P perform advanced testing procedures advanced testing procedures are performed to confirm the existence and location of defects, and internal weld or structure defects

Range of Variables

Knowledge
Reference Code Learning Outcomes Learning Objectives
D-13.05.01L demonstrate knowledge of procedures to test materials, vessels and components describe types of destructive testing (DT)
describe types of non-destructive testing (NDT)
explain the difference between DT and NDT
identify vessels and components to be tested
identify inspection methods and procedures
describe the process, application, end results, advantages and drawbacks of NDT

Range of Variables

Task D-14 Removes vessels and components

Task Descriptor

Boilermakers remove vessels and components to be repaired or replaced. Removing equipment, vessels and components allows easier access and facilitates maintenance and repairs. Obsolete vessels and components also need to be dismantled, demolished or removed.

D-14.01 - Dismantles vessels and components

Essential Skills

Working with Others, Thinking, Document Use

D-14.01 - Dismantles vessels and components
NL NS PE NB QC ON MB SK AB BC NT YT NU
yes yes NV yes yes yes yes yes yes yes NV NV NV
Skills
Reference Code Performance Criteria Evidence of Attainment
D-14.01.01P prepare a plan for which vessels and components are to be dismantled a plan for which vessels and components are to be dismantled has been made according to job requirements, site conditions and sequence
D-14.01.02P select and use tools and equipment tools and equipment are selected and used according to task at hand
D-14.01.03P identify vessels and components to be salvaged vessels and components to salvage are numbered, match-marked or tagged
D-14.01.04P prepare components for dismantling components are prepared for dismantling using procedures according to plan
D-14.01.05P coordinate work with other trades work with other trades is coordinated to ensure efficient and safe removal of components
D-14.01.06P unbolt, unfasten or cut vessels and components vessels and components are unbolted, unfastened or cut according to plan and site conditions
D-14.01.07P separate components to be salvaged (reused or recycled) components to be salvaged are placed in secure area for storage and cleaning

Range of Variables

Knowledge
Reference Code Learning Outcomes Learning Objectives
D-14.01.01L demonstrate knowledge of dismantling procedures related to vessels and components describe dismantling methods and procedures
describe demolition methods and procedures
identify vessels and components that can be re-used
describe lifting, hoisting, handling and storage methods and procedures
D-14.01.02L demonstrate knowledge of safe work practices related to the dismantling of vessels and components identify hazards and describe safe work practices when dismantling vessels and components
list factors to consider when analyzing the integrity of components or attachment points

Range of Variables

D-14.02 - Removes materials

Essential Skills

Document Use, Working with Others, Thinking

D-14.02 - Removes materials
NL NS PE NB QC ON MB SK AB BC NT YT NU
yes yes NV yes yes yes yes yes yes yes NV NV NV
Skills
Reference Code Performance Criteria Evidence of Attainment
D-14.02.01P plan material and scrap removal material and scrap removal is planned according to material being removed, hazards, job requirements and site conditions
D-14.02.02P select and use tools and equipment tools and equipment to remove material are selected and used according to work plan
D-14.02.03P select PPE to execute work plan PPE to remove material is selected and used according to work plan
D-14.02.04P sort and dispose of material material to be removed is sorted and disposed of according to work plan and jurisdictional requirements

Range of Variables

Knowledge
Reference Code Learning Outcomes Learning Objectives
D-14.02.01L demonstrate knowledge of procedures related to the removal of materials describe the process to plan the removal of material
describe process and factors for sorting material to be removed
D-14.02.02L demonstrate knowledge of regulatory requirements pertaining to the disposal of waste materials dispose of waste material according to work plan and jurisdictional requirements