Producing power turbine combustion assemblies

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This standard identifies the competences you need to carry out assembly operations to produce turbine combustion assemblies, in accordance with approved procedures. You will be required to obtain all the required tools and equipment for the assembly operations, and to check that they are in a safe and usable condition. In carrying out the assembly operations, you will be required to follow laid-down procedures and specific assembly techniques, in order to assemble the various components and unit sub-assemblies into the combustor assembly.

The assembly activities will also include making all necessary checks and adjustments, to ensure that components are correctly orientated, positioned and aligned, that moving parts have the correct working clearances, that all fasteners are tightened to the correct torque, and that the assembled parts function as per the specification.

Your responsibilities will require you to comply with organisational policy and procedures for the assembly activities undertaken, and to report any problems with the assembly activities, materials or equipment that you cannot personally resolve, or are outside your permitted authority, to the relevant people. You will be expected to ensure that all tools, equipment and materials used in the installation are correctly accounted for on completion of the activities, and to complete all necessary job/task documentation accurately and legibly. You will be expected to work with a minimum of supervision, taking personal responsibility for your own actions and for the quality and accuracy of the work that you carry out.

Your underpinning knowledge will provide a good understanding of your work, and will provide an informed approach to applying the assembly techniques and procedures. You will understand the turbine combustor being assembled, and its application, and will know about the equipment, relevant components and fastening devices, in adequate depth to provide a sound basis for carrying out the activities to the required specification.

You will understand the safety precautions required when carrying out the assembly activities. You will be required to demonstrate safe working practices throughout, and will understand the responsibility you owe to yourself and others in the workplace.

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1. work safely at all times, complying with health and safety and other relevant regulations, directives and guidelines
2. follow the relevant instructions, assembly drawings and any other specifications
3. ensure that the specified components are available and that they are in a usable condition
4. use the appropriate methods and techniques to assemble the components in their correct positions
5. secure the components using the specified connectors and securing devices
6. check the completed assembly to ensure that all operations have been completed and the finished assembly meets the required specification
7. complete the required production documentation
8. deal promptly and effectively with problems within your control and report those that cannot be solved

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1. how to work safely at all times, complying with health and safety and other relevant regulations, directives and guidelines
2. Regulations with regard to the substances used in the assembly process
3. the hazards associated with producing power turbine combustion/module assemblies, and how to minimise them and reduce any risks
4. the personal protective equipment and clothing (PPE) to be worn during the assembly activities
5. how to extract and use information from engineering drawings and related specifications (to include symbols and conventions to appropriate standards) in relation to work undertaken
6. how to interpret first and third angle drawings, imperial and metric systems of measurement, workpiece reference points and system of tolerancing
7. how to identify the components to be used
8. preparations to be undertaken on the components prior to fitting them into the assembly
9. the assembly methods and procedures to be used, and the importance of adhering to these procedures
10. how the components are to be aligned and positioned prior to securing, and the tools and equipment that are used including jigs and fixtures
11. the various mechanical fasteners that will be used and their method of installation
12. the importance of using the specified mechanical fastening devices for the assembly, and why you must not use substitutes
13. how to complete basic fitting practices, meeting company requirements
14. how to ensure outer guide vanes and nozzle guide vanes are properly seated and assembled to achieve fit, position and alignment
15. dealing with components or fastening devices incorrectly assembled, damaged or having other faults
16. the application of sealants and adhesives within the assembly activities, and the precautions that must be taken when working with them
17. the quality control procedures to be followed during the assembly operations
18. how to conduct any necessary checks to ensure the accuracy and quality of the assemblies produced
19. how to detect assembly defects, and what to do to rectify them
20. how to move large components and assemblies, the methods and equipment used to transport, handle and lift the components into position
21. how to check that the tools and equipment to be used are correctly calibrated and are in a safe and serviceable condition
22. the importance of ensuring that all tools are used correctly and within their permitted operating range
23. the importance of ensuring that the completed assembly is free from dirt, swarf and foreign objects
24. the importance of ensuring that all tools, equipment and components are accounted for and returned to their correct location on completion of the assembly activities
25. problems with the assembly operations, and the importance of informing appropriate people of non-conformances
26. the extent of your own responsibility and to whom you should report if you have problems that you cannot resolve

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1. Carry out all of the following during the assembly activities:
   1. obtain and use the appropriate documentation
   2. adhere to procedures or systems in place for risk assessment, personal protective equipment and other relevant safety regulations and procedures to realise a safe system of work
   3. follow safe practice/approved assembly techniques at all times
   4. check that all cables, extension leads or air supply hoses are in a serviceable condition
   5. check that all tools and measuring equipment are within current calibration/certification dates
   6. use lifting and slinging equipment in accordance with health and safety guidelines and procedures
   7. ensure that the components used are free from damage, foreign objects, dirt or other contamination before assembling them
   8. return all tools and equipment to the correct location on completion of the assembly activities
   9. leave the work area and assembly in a safe and appropriate condition on completion of the activities
2. Use six of the following assembly methods and techniques:
   1. assembly of components by pressure
   2. applying sealants/adhesives
   3. assembly of components by expansion or contraction
   4. drilling, reaming and riveting
   5. aligning components
   6. electrical bonding of components
   7. setting working clearances
   8. blue-bedding components
   9. torque setting of bolts, fasteners, clips, sub-assemblies
   10. securing components using mechanical fasteners and threaded devices
   11. applying bolt locking methods (split pins, wire locking, lock nuts, stiff nuts, swage nuts)
3. Produce the power turbine combustion/module assemblies by fitting all of the following:
   1. combustion case
   2. outer guide vanes
   3. locking devices
   4. combustion cans/chambers
   5. seals and gaskets
   6. wire thread inserts
   7. annular combustion chambers
   8. shims and packings
   9. pipes and unions
   10. nozzle guide vanes
4. Carry out all the following checks for accuracy, using the correct inspection testing equipment:
   1. positional accuracy
   2. freedom of movement
   3. component security
   4. completeness
   5. dimensions
   6. orientation
   7. alignment
   8. function
   9. bearing end float
   10. operating/working clearances
   11. freedom from damage or foreign objects
5. Produce power turbine combustion assemblies which comply with one of the following quality and accuracy
   1. BS, ISO or BSEN standards and procedures
   2. company standards and procedures
   3. customer standards and requirements
   4. specific system requirements

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3

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31 Mar 2028

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Current

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Original

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Enginuity

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SEMMME3066

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Engineering, Engineering and Manufacturing Technologies, Engineering Technicians

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3113

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Engineering; manufacturing; mechanical; assemble; power turbine combustion assembly; assembly procedure; assembly methods; assembly techniques; combustion chamber; nozzle guide vanes

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