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 engine and exhaust braking systems 
SAQA US ID UNIT STANDARD TITLE
230464  Diagnose and repair engine and exhaust braking 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 5  Level TBA: Pre-2009 was L5  6 
REGISTRATION STATUS REGISTRATION START DATE REGISTRATION END DATE SAQA DECISION NUMBER
Passed the End Date -
Status was "Registered" 		 2006-11-16  2009-11-16  SAQA 0368/06 
LAST DATE FOR ENROLMENT LAST DATE FOR ACHIEVEMENT
2010-11-16   2013-11-16  

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 does not replace any other unit standard and is not replaced by any other unit standard. 

PURPOSE OF THE UNIT STANDARD 
People in the field of manufacturing and engineering require the skills, values and knowledge reflected in this unit standard. The learning outcomes in this unit standard also contribute to the exit level outcomes required for various manufacturing and engineering qualifications. The learner is capable of diagnosing and repairing engine and exhaust braking systems and to record and submit a report. 

LEARNING ASSUMED TO BE IN PLACE AND RECOGNITION OF PRIOR LEARNING 
It is assumed that learners are already competent in Communication and Mathematical Literacy at NQF Level 4. 

UNIT STANDARD RANGE 
The ranges as indicated under the specific outcomes determine the scope and level of this unit standard.

All work is performed without supervision in accordance with operational, repair manual specifications and procedures and in compliance with occupational safety, health and environmental legislation. 

Specific Outcomes and Assessment Criteria: 

SPECIFIC OUTCOME 1 
Read and interpret the job instructions. 
OUTCOME RANGE 
  • Read and interpret includes the specific technical data, tools and equipment required and the type of system identified. 
    		•

    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 function of vehicle exhaust and engine braking system components and parts are described in terms of the vehicle make and model. 

    ASSESSMENT CRITERION 5 
    The operation of vehicle exhaust and engine braking systems is explained in terms of the key differences between particular systems. 

    SPECIFIC OUTCOME 2 
    Prepare and position the vehicle. 
    OUTCOME RANGE 
  • Prepare includes cleaning the work area on the vehicle, select and connect the appropriate test equipment. 
    		•

    ASSESSMENT CRITERIA     

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

    ASSESSMENT CRITERION 2 
    The braking system is visually inspected in accordance with repair manual and operational procedures. 

    ASSESSMENT CRITERION 3 
    The engine and exhaust braking system is physically inspected for functionality and faults in accordance with repair manual and quality procedures. 

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

    ASSESSMENT CRITERION 5 
    Reasons for preparing the vehicle are explained in terms of the type of work and productivity. 

    SPECIFIC OUTCOME 3 
    Diagnose and repair system faults. 
    OUTCOME RANGE 
  • Faults include inefficient brake performance of the system and faulty components.
  • Repair includes the removal and/or replacement of components and/or parts and performing adjustments.
  • Component and parts includes cylinder head valves, exhaust brake valve, air pressure regulator valves, oil pressure regulating valves, solenoids and hydraulic actuators. 
    		•

    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 
    Replacement parts are obtained in accordance with operational procedures. 

    ASSESSMENT CRITERION 4 
    System faults are repaired in accordance with repair manual and quality procedures. 

    ASSESSMENT CRITERION 5 
    Work is completed in accordance with flat rate time schedules. 

    ASSESSMENT CRITERION 6 
    Common parts defects are explained in terms of identification, causes and remedies. 

    ASSESSMENT CRITERION 7 
    Wear on parts is explained in terms of minimum tolerances. 

    SPECIFIC OUTCOME 4 
    Test and commission the system. 

    ASSESSMENT CRITERIA     

    ASSESSMENT CRITERION 1 
    The brake system is tested in accordance with operational and repair manual procedures. 

    ASSESSMENT CRITERION 2 
    Potential problems are identified and explained in terms of causes and remedies. 

    ASSESSMENT CRITERION 3 
    The braking system is adjusted to manufacturer specifications in accordance with operational and repair manual procedures. 

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

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

    SPECIFIC OUTCOME 5 
    Apply safety procedures during the diagnosing and repair of the brake system. 
    OUTCOME RANGE 
  • Wearing of personal protective equipment (PPE).
  • Use and disposal of cleaning agents and fluids.
  • Following SHE procedures. 
    		•

    ASSESSMENT CRITERIA     

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

    ASSESSMENT CRITERION 2 
    The system is diagnosed and repaired without incident, accident or injury. 

    ASSESSMENT CRITERION 3 
    No damage is caused to the brake system, equipment and tools. 

    ASSESSMENT CRITERION 4 
    All repair manual safety warnings and required actions before, during and after the task are adhered to. 

    SPECIFIC OUTCOME 6 
    Restore work area, complete and process documentation. 
    OUTCOME RANGE 
  • Restoring work area includes disposal of hazardous materials.
  • Tools and equipment packed away.
  • Documentation includes completing job cards, check lists and reports.
  • Reports include reports and summaries of work completed.
  • Process includes submissions according to company procedures. 
    		•

    ASSESSMENT CRITERIA     

    ASSESSMENT CRITERION 1 
    The work area is restored 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 
    The reasons for the various documentation are explained in terms of their main functions. 


    UNIT STANDARD ACCREDITATION AND MODERATION OPTIONS 
  • Anyone assessing a learner or moderating the assessment of a learner against this unit standard must be registered as an assessor with the relevant Education, Training, Quality, Assurance (ETQA) Body, or with an ETQA that has a Memorandum of Understanding with the relevant ETQA.
  • Any institution offering learning that will enable the achievement of this unit standard must be accredited as a provider with the relevant Education, Training, Quality, Assurance (ETQA) Body, or with an ETQA that has a Memorandum of Understanding with the relevant ETQA.
  • Assessment and moderation of assessment will be overseen by the relevant Education, Training, Quality, Assurance (ETQA) Body, or by an ETQA that has a Memorandum of Understanding with the relevant ETQA, according to the ETQA's policies and guidelines for assessment and moderation.
  • Moderation must include both internal and external moderation of assessments, unless ETQA policies specify otherwise. Moderation should also encompass achievement of the competence described in the Unit Standard. 
    		•

    UNIT STANDARD ESSENTIAL EMBEDDED KNOWLEDGE 
  • Names and functions of:

    > Components and parts
    > Tools and test equipment
  • Attributes, descriptions, characteristics and properties:

    > Lubricating oil
    > Design differences
    > Properties of metals
  • Sensory cues:
    > What I see, hear, smell and feel during the process
  • Purpose of:

    > Adjustments
    > Components
    > Functional tests
  • Regulations, legislation, agreements, policies, standards:

    > Applicable company policies and procedures
    > Workshop manual procedures
    > SHE procedures
    > Quality procedures
    > Road safety Act
  • Theory: rules, principles, laws:

    > Exhaust systems
    > Pneumatics
    > Principals of hydraulics
    > Engine operation - four stroke cycle
  • Relationships, systems:
    > The relationship between the brake system operation and the four stroke cycle engine 
    		•

    UNIT STANDARD DEVELOPMENTAL OUTCOME 
    N/A 

    UNIT STANDARD LINKAGES 
    N/A 


    Critical Cross-field Outcomes (CCFO): 

    UNIT STANDARD CCFO IDENTIFYING 
    Identify and solve problems.
  • Related to engine and exhaust braking 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 engine and exhaust braking systems. 
    		•

    UNIT STANDARD CCFO ORGANISING 
    Organise and manage myself and my activities.
  • When preparing the vehicle and the engine and exhaust braking system for inspection, tests, diagnosing 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.
  • The interaction between the brake system operation and the four stroke cycle engine. 
    		•

    UNIT STANDARD ASSESSOR CRITERIA 
    N/A 

    UNIT STANDARD NOTES 
    N/A 

    QUALIFICATIONS UTILISING THIS UNIT STANDARD: 
      ID QUALIFICATION TITLE PRE-2009 NQF LEVEL NQF LEVEL STATUS END DATE PRIMARY OR DELEGATED QA FUNCTIONARY
    Elective  78526   National Certificate: Automotive Repair and Maintenance  Level 5  Level TBA: Pre-2009 was L5  Passed the End Date -
    Status was "Reregistered"     		 2023-06-30  As per Learning Programmes recorded against this Qual 
    Elective  57450   National Diploma: Automotive Diagnostics and Repair  Level 5  Level TBA: Pre-2009 was L5  Passed the End Date -
    Status was "Registered"     		 2009-02-18  Was MERSETA until Last Date for Achievement 


    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.