Use engineering drawings and documents in maintenance activities in food and drink operations

Business Sectors (Suites): Food and Drink
Developed by: Improve
Approved on: 26 Feb 2021


This standard identifies the competences you need to make effective use of text, numeric and graphical information by interpreting and using technical information extracted from engineering drawings, technical manuals, reference tables, specifications, charts, technical data sheets and maintenance manuals used in food and drink operations in accordance with approved procedures.

You will be able to extract the necessary information from the various drawings and related documents in order to establish and carry out the maintenance requirements and to make valid decisions about the quality and accuracy of the equipment being maintained. Food and drink operations is a term used in this standard to cover the following sub sectors of Meat, Drinks, Confectionery, Fresh Produce, Bakery, Seafood and Dairy.

You will be expected to work with minimal supervision, taking personal responsibility for your own actions, and for the quality and accuracy of the work that you carry out.

Performance criteria

You must be able to:

  1. use the approved source to obtain the required drawings and specifications for food and drink operations
  2. check the currency and validity of the documents used
  3. interpret, identify and extract information from drawings and specifications for food and drink operations
  4. use the information obtained to ensure that work output meets the specification
  5. deal with any problems within your control and report those which cannot be solved in accordance with organisational procedures
  6. report any inaccuracies or discrepancies in drawings and specifications in accordance with organisational procedures
  7. return all drawings and related documents to the approved location on completion of the work in accordance with organisational procedures

Knowledge and Understanding

You need to know and understand:

  1. the information sources used for the drawings and specifications that you use in your work activities
  2. how drawings and documents are obtained, and how to check that they are current and valid
  3. how to use other sources of information to support the drawings (including organisational standards, national and international standards, health and safety documentation and relevant codes of practice, electronic component pin configuration specifications, standard reference charts for limits and fits, tapping drill reference charts, cable current carrying capacities, thread reference tables)
  4. the requirements of the British Retail Consortium (BRC) guidelines and standards in relationship to the maintenance activities
  5. the specific requirements of your customer/client specifications in relationship to the maintenance activities
  6. your responsibilities in relationship to Hazard Analysis and Critical Control Points (HACCP), Threat Assessment and Critical Control Points (TACCP), Vulnerability Assessment and Critical Control Points (VACCP) during the maintenance activities
  7. the procedures for reporting inaccuracies and discrepancies in the drawings or documents and for reporting lost or damaged drawings/documents
  8. care and control procedures for the drawings and documents, and the importance of returning them to the designated location on completion of the work activities
  9. the basic drawing conventions, colour coding of services, symbols and notations used, and why there needs to be different types of drawings
  10. how to produce basic drawings, from drawing boards to computer aided design (CAD)
  11. the types of drawings used, and how they interrelate (including isometric and orthographic, first and third angle, assembly drawings, circuit and wiring diagrams, block and schematic diagrams, piping and instrumentation diagram (P&ID)
  12. imperial and metric systems of measurement; dimensions and tolerances; scales and reference points
  13. the meaning of the different symbols and abbreviations found on the drawings that you use (including surface finish, electronic components, weld symbols, linear and geometric tolerances, pressure, flow characteristics, electricity, water, gas, fuel oil, compressed air and steam)
  14. how damage, contaminants or graffiti on drawings can lead to misinterpretation and delays to work
  15. the extent of your own responsibility, when to act on your own initiative to find, clarify and evaluate information, and to whom you should report if you have problems that you cannot resolve


Scope Performance

Scope Knowledge





Links To Other NOS

External Links

Version Number


Indicative Review Date

31 Jan 2024





Originating Organisation


Original URN


Relevant Occupations

Manufacturing Technologies, Plant and Machine Operatives, Process Operatives, Process, Plant and Machine Operatives

SOC Code



Food and drink; engineering; manufacturing; maintenance; engineering drawings; health and safety; safety at work; hazards at work; COSHH regulations; risk assessment; workplace H&S regulations; personal protection; technical manuals; technical specificati