SAQA All qualifications and part qualifications registered on the National Qualifications Framework are public property. Thus the only payment that can be made for them is for service and reproduction. It is illegal to sell this material for profit. If the material is reproduced or quoted, the South African Qualifications Authority (SAQA) should be acknowledged as the source.
SOUTH AFRICAN QUALIFICATIONS AUTHORITY 
REGISTERED UNIT STANDARD THAT HAS PASSED THE END DATE: 

Diagnose and repair forced induction systems 
SAQA US ID UNIT STANDARD TITLE
260678  Diagnose and repair forced induction systems 
ORIGINATOR
SGB Vehicle Maintenance 
PRIMARY OR DELEGATED QUALITY ASSURANCE FUNCTIONARY
-  
FIELD SUBFIELD
Field 06 - Manufacturing, Engineering and Technology Manufacturing and Assembly 
ABET BAND UNIT STANDARD TYPE PRE-2009 NQF LEVEL NQF LEVEL CREDITS
Undefined  Regular  Level 4  NQF Level 04  4 
REGISTRATION STATUS REGISTRATION START DATE REGISTRATION END DATE SAQA DECISION NUMBER
Passed the End Date -
Status was "Reregistered" 		 2018-07-01  2023-06-30  SAQA 06120/18 
LAST DATE FOR ENROLMENT LAST DATE FOR ACHIEVEMENT
2024-06-30   2027-06-30  

In all of the tables in this document, both the pre-2009 NQF Level and the NQF Level is shown. In the text (purpose statements, qualification rules, etc), any references to NQF Levels are to the pre-2009 levels unless specifically stated otherwise.  

This unit standard replaces: 
US ID Unit Standard Title Pre-2009 NQF Level NQF Level Credits Replacement Status
244121  Diagnose, service and repair forced induction systems  Level 4  NQF Level 04  4   

PURPOSE OF THE UNIT STANDARD 
This unit standard is for people in the automotive engineering industry who are expected to diagnose and repair forced induction systems in accordance with workplace procedures and manufacturer service manuals.

People credited with this unit standard are able to:
  • Read and interpret the job instructions.
  • Inspect system components for condition.
  • Diagnose faults.
  • Repair the faults.
  • Apply safety procedures during the repair and assembly task.
  • Restore work area, complete and process documentation.

    This unit standard is an elective standard in the context of one or more of the following areas of specialisation:
  • Passenger vehicle.
  • Commercial vehicle.
  • Earthmoving equipment.
  • Lift truck.
  • Motor cycle. 
    		•

    LEARNING ASSUMED TO BE IN PLACE AND RECOGNITION OF PRIOR LEARNING 
    The credit calculation is based on the assumption that learners are already competent in terms of the following outcomes or areas of learning when starting to learn towards this unit standard:
  • The ability to Work safely in an automotive workshop at NQF Level 3.
  • The ability to Demonstrate knowledge of fuel supply and engine management systems at NQF Level 3. 
    		•

    UNIT STANDARD RANGE 
    The following scope and context applies to the whole unit standard:
  • Forced induction systems include turbo chargers and super chargers.
  • The learner should be able to work autonomously.

    Specific range statements are provided in the body of the unit standard where they apply to particular specific outcomes or assessment criteria. 
    		•

    Specific Outcomes and Assessment Criteria: 

    SPECIFIC OUTCOME 1 
    Read and interpret the job instructions. 

    ASSESSMENT CRITERIA     

    ASSESSMENT CRITERION 1 
    Technical data is sourced in accordance with operational procedures. 

    ASSESSMENT CRITERION 2 
    Appropriate tools and equipment are obtained in accordance with repair manual and operational procedures. 

    ASSESSMENT CRITERION 3 
    The consequences of not using the correct technical data, tools and equipment are explained in terms of the impact on the job. 

    ASSESSMENT CRITERION 4 
    The type of system is identified in terms of the vehicle make and model. 

    ASSESSMENT CRITERION 5 
    The operation of forced induction systems is explained in terms of the key differences between particular systems. 

    ASSESSMENT CRITERION 6 
    The application of forced induction systems is explained in terms of the construction and operation of the system. 

    SPECIFIC OUTCOME 2 
    Inspect system components for condition. 
    OUTCOME RANGE 
  • Inspect includes checking for error codes with the scan tool.
  • Error codes include knock sensor, throttle position sensor, manifold pressure sensor and manifold temperature sensor.
  • System condition includes connection of vacuum lines to the waste gate and oil lines to the turbocharger, waste gate diaphragm leakage and operation, boost pressure, lack of power, colour of engine smoke and abnormal noises. 
    		•

    ASSESSMENT CRITERIA     

    ASSESSMENT CRITERION 1 
    The vehicle is prepared, positioned and inspected in accordance with work instructions. 

    ASSESSMENT CRITERION 2 
    Inspection equipment is connected and used in accordance with manufacturer specifications. 

    ASSESSMENT CRITERION 3 
    The forced induction system is physically inspected for condition and faults in accordance with repair manual procedures. 

    ASSESSMENT CRITERION 4 
    Faults identified are recorded in accordance with repair manual and quality procedures. 

    ASSESSMENT CRITERION 5 
    Reasons for inspecting forced induction systems are explained in terms of identification of faults. 

    ASSESSMENT CRITERION 6 
    Reasons for selecting correct tools and equipment are explained in terms of the type of work and productivity. 

    SPECIFIC OUTCOME 3 
    Diagnose faults. 
    OUTCOME RANGE 
  • Diagnose include recognising system faults such as inadequate boost pressure, leaking shaft seals, damaged turbine or compressor wheels, excess boost, contaminated oil, stuck by-pass actuator, internal rotor or housing wear and bearing noise. 
    		•

    ASSESSMENT CRITERIA     

    ASSESSMENT CRITERION 1 
    System is tested and diagnosed in accordance with repair manual and operational procedures. 

    ASSESSMENT CRITERION 2 
    Test data is recorded in accordance with operational procedures. 

    ASSESSMENT CRITERION 3 
    Common faults are explained in terms of identification, causes and remedies. 

    ASSESSMENT CRITERION 4 
    The effect of faults on the forced induction system is explained in terms of engine performance. 

    ASSESSMENT CRITERION 5 
    Reasons for conducting tests are explained in terms of safety and performance requirements. 

    SPECIFIC OUTCOME 4 
    Repair the faults. 
    OUTCOME RANGE 
  • Repair includes settings and adjustments.
  • Testing includes testing under load conditions and a physical inspection. 
    		•

    ASSESSMENT CRITERIA     

    ASSESSMENT CRITERION 1 
    The fault is repaired in accordance with the repair manual and safety procedures. 

    ASSESSMENT CRITERION 2 
    Consequences of not repairing identified faults are explained in terms of the impact on the vehicle performance and reliability. 

    ASSESSMENT CRITERION 3 
    Repaired faults are tested and the results recorded in accordance with workplace procedures. 

    ASSESSMENT CRITERION 4 
    Test results are interpreted and the repair is confirmed in accordance with quality and operational procedures. 

    ASSESSMENT CRITERION 5 
    Reasons for testing the system after repairs are explained in terms of quality control and safety. 

    ASSESSMENT CRITERION 6 
    Quality control procedures are explained in terms of their operation and function. 

    ASSESSMENT CRITERION 7 
    Potential problems are identified and explained in terms of potential causes and remedies. 

    SPECIFIC OUTCOME 5 
    Apply safety procedures during the repair and assembly task. 

    ASSESSMENT CRITERIA     

    ASSESSMENT CRITERION 1 
    Safety procedures are identified and adhered to during the diagnosing and repairing task. 

    ASSESSMENT CRITERION 2 
    All safety warnings and required actions before, during and after the task are adhered to according to workshop safety manuals. 

    SPECIFIC OUTCOME 6 
    Restore work area, complete and process documentation. 
    OUTCOME RANGE 
  • Restoring work area includes disposal of hazardous materials, tools and equipment cleaned and stored.
  • Documentation includes completing job cards, check lists and reports. 
    		•

    ASSESSMENT CRITERIA     

    ASSESSMENT CRITERION 1 
    The work area is cleaned in accordance with workplace and SHE requirements. 

    ASSESSMENT CRITERION 2 
    Tools and equipment are cleaned and stored in accordance with workplace and SHE requirements. 

    ASSESSMENT CRITERION 3 
    Consequences of not leaving the workplace in the appropriate state are explained in terms of safety hazards and production. 

    ASSESSMENT CRITERION 4 
    Documentation is completed and processed in accordance with company procedures. 

    ASSESSMENT CRITERION 5 
    Documentation is explained in terms of their main functions. 


    UNIT STANDARD ACCREDITATION AND MODERATION OPTIONS 
  • Anyone assessing a learner against this unit standard must be registered as an assessor with the relevant ETQA.
  • Any institution offering learning that will enable achievement of this unit standard must be accredited as a provider through the relevant ETQA by SAQA.
  • Moderation of assessment will be overseen by the relevant ETQA according to the moderation guidelines and the agreed ETQA procedures. 
    		•

    UNIT STANDARD ESSENTIAL EMBEDDED KNOWLEDGE 
    Names and functions of:
  • Forced Induction system types, components and parts.

    Attributes, descriptions, characteristics and properties:
  • Turbo/Superchargers.

    Sensory cues:
  • What I see, hear, smell and feel during the process.

    Purpose of:
  • Forced induction systems.

    Regulations, legislation, agreements, policies, standards:
  • Applicable company policies and procedures.
  • Repair manual procedures.
  • SHE procedures.
  • Quality procedures.

    Theory: rules, principles, laws:
  • Atmospheric pressure.
  • Ambient pressure as a moving force.
  • Combustion, heat energy and pressure.

    Relationships, systems:
  • Interaction of forced induction systems, components and parts in relation to engine output. 
    		•

    UNIT STANDARD DEVELOPMENTAL OUTCOME 
    N/A 

    UNIT STANDARD LINKAGES 
    N/A 


    Critical Cross-field Outcomes (CCFO): 

    UNIT STANDARD CCFO IDENTIFYING 
    Identify and solve problems:
  • Relating to forced induction systems. 
    		•

    UNIT STANDARD CCFO WORKING 
    Work effectively with others:
  • When interacting with team members and colleagues during the planning, preparation, and completion and reporting phases of diagnosing and repairing forced induction systems. 
    		•

    UNIT STANDARD CCFO ORGANISING 
    Organise and manage myself and my activities:
  • When preparing the forced induction system for inspection and repairs.
  • When working in accordance with service and flat rate schedules.
  • When managing resources and my time. 
    		•

    UNIT STANDARD CCFO COMMUNICATING 
    Communicate effectively:
  • When ordering replacement parts.
  • When completing and processing written reports.
  • When submitting the reports to the relevant department. 
    		•

    UNIT STANDARD CCFO SCIENCE 
    Use science and technology effectively and critically:
  • When using information technology to source technical data and to generate and submit reports. 
    		•

    UNIT STANDARD CCFO DEMONSTRATING 
    Demonstrate an understanding of the world as a set of related systems:
  • When I can explain and justify my actions and procedures followed.
  • When I can explain the interaction of forced induction system components and parts in relation to the output of the vehicle engine. 
    		•

    UNIT STANDARD ASSESSOR CRITERIA 
    N/A 

    REREGISTRATION HISTORY 
    As per the SAQA Board decision/s at that time, this unit standard was Reregistered in 2012; 2015. 

    UNIT STANDARD NOTES 
    This unit standard replaces unit standard 244121, "Diagnose, service and repair forced induction systems", Level 4, 4 credits. 

    QUALIFICATIONS UTILISING THIS UNIT STANDARD: 
      ID QUALIFICATION TITLE PRE-2009 NQF LEVEL NQF LEVEL STATUS END DATE PRIMARY OR DELEGATED QA FUNCTIONARY
    Elective  78525   Further Education and Training Certificate: Automotive Repair and Maintenance  Level 4  NQF Level 04  Passed the End Date -
    Status was "Reregistered"     		 2023-06-30  As per Learning Programmes recorded against this Qual 


    PROVIDERS CURRENTLY ACCREDITED TO OFFER THIS UNIT STANDARD: 
    This information shows the current accreditations (i.e. those not past their accreditation end dates), and is the most complete record available to SAQA as of today. Some Primary or Delegated Quality Assurance Functionaries have a lag in their recording systems for provider accreditation, in turn leading to a lag in notifying SAQA of all the providers that they have accredited to offer qualifications and unit standards, as well as any extensions to accreditation end dates. The relevant Primary or Delegated Quality Assurance Functionary should be notified if a record appears to be missing from here.
     
    NONE 


    All qualifications and part qualifications registered on the National Qualifications Framework are public property. Thus the only payment that can be made for them is for service and reproduction. It is illegal to sell this material for profit. If the material is reproduced or quoted, the South African Qualifications Authority (SAQA) should be acknowledged as the source.