TS 12640

TS 12640 is a vocational standard for the diesel engine fuel pump repair profession, addressing how practitioners are defined and classified, which tools and equipment are used, and which basic and occupational characteristics are expected at each level. It is intended to distinguish levels of competence and to provide criteria for measuring and evaluating those competencies.

Technical context of the occupation

In diesel engines, the fuel pump system is closely tied to fuel delivery pressure and injection timing. Because of that, fuel pump components are precision parts and their adjustment requires careful handling. In the general technical sense, this occupation covers work on diesel fuel feed and injection pump units, including maintenance, inspection, repair, and adjustment activities. Correct use of measuring and control instruments is especially important because pump condition directly affects engine operation.

Classification and evaluation logic

According to the scope, classification is used to separate practitioners by the level of knowledge, skill, and practical competence they are expected to demonstrate. The reference to tools and equipment highlights the importance of measurement and inspection instruments in this trade. In broader technical practice, accuracy, cleanliness, and correct adjustment are central to diesel fuel system performance, so assessment generally depends on both theoretical understanding and hands-on ability.

• Definition and classification of practitioners in the occupation
• Tools and equipment to be used
• Basic and occupational characteristics for each class
• Criteria for measuring those characteristics
• Evaluation of those criteria