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: 

Repair vehicle differentials 
SAQA US ID UNIT STANDARD TITLE
244107  Repair vehicle differentials 
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 
REGISTRATION STATUS REGISTRATION START DATE REGISTRATION END DATE SAQA DECISION NUMBER
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 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 identifying the various types of differentials, to assess the condition of the parts and to repair and assemble the differential 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 3.
  • Dismantling vehicle drive train components. 

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

    All work is performed with little or no supervision in accordance with operational procedures, repair manual specifications and procedures in accordance with SHE legislation. 

    Specific Outcomes and Assessment Criteria: 

    SPECIFIC OUTCOME 1 
    Read and interpret the job instructions. 
    OUTCOME RANGE 
  • Interpreting the job instructions include the type of differential, the dismantled condition, that the dismantled parts must be cleaned and that the specifications must be obtained.
  • Types of differentials include limited slip, non-spin and conventional. 

  • 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 differential is identified in terms of the vehicle make and model. 

    ASSESSMENT CRITERION 5 
    The operation of a differential is explained in terms of the functions performed. 

    ASSESSMENT CRITERION 6 
    Differential parts are cleaned in accordance with operational procedures. 

    SPECIFIC OUTCOME 2 
    Assess the condition of the parts. 
    OUTCOME RANGE 
  • Assessing the condition includes the layout of the parts in operational sequence and to conduct a visual and physical inspection.
  • Physical inspection include measuring components for defects and wear.
  • Measuring include the use of micrometers, depth gauges, verniers, go/no-go gauges and dial gauges. 

  • ASSESSMENT CRITERIA
     

    ASSESSMENT CRITERION 1 
    Parts are arranged in operational sequence in accordance with repair manuals. 

    ASSESSMENT CRITERION 2 
    Parts are assessed against specifications and defective parts are identified. 

    ASSESSMENT CRITERION 3 
    Component/part assessment procedures are explained in terms of workplace requirements. 

    ASSESSMENT CRITERION 4 
    Reasons for assessment decisions are given in terms of faults identified. 

    SPECIFIC OUTCOME 3 
    Repair and assemble the differential. 
    OUTCOME RANGE 
  • Repair includes obtaining and cleaning of the replacement parts.
  • Assembling includes according to operational sequence and manufacturers specifications.
  • Manufacturers specifications include the use of special tools. 

  • ASSESSMENT CRITERIA
     

    ASSESSMENT CRITERION 1 
    Replacement parts are obtained in accordance with operational procedures. 

    ASSESSMENT CRITERION 2 
    Differential faults are repaired in accordance with repair manual procedures. 

    ASSESSMENT CRITERION 3 
    The differential is assembled as per repair manual procedures and specifications. 

    ASSESSMENT CRITERION 4 
    Work is completed in accordance with flat rate time schedules. 

    ASSESSMENT CRITERION 5 
    Common faults are explained in terms of identification, causes and remedies. 

    SPECIFIC OUTCOME 4 
    Check the operational condition after assembly. 
    OUTCOME RANGE 
  • Checking include visual and manual operational checks.
  • Manual checks include free turning of crown wheel and pinion.
  • Visual checks include observing correct directional rotation of crown wheel and pinion.
  • Labelling include serial number, job number and special notes. 

  • ASSESSMENT CRITERIA
     

    ASSESSMENT CRITERION 1 
    The differential is visually inspected and tested in accordance with operational and repair manual procedures. 

    ASSESSMENT CRITERION 2 
    Quality checks are carried out in accordance with repair manual procedures and specifications. 

    ASSESSMENT CRITERION 3 
    Differential is labelled in accordance with operational procedures. 

    ASSESSMENT CRITERION 4 
    Quality control procedures are explained in terms of their operation and function. 

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

    ASSESSMENT CRITERION 2 
    The differential is repaired and assembled without incident, accident or injury. 

    ASSESSMENT CRITERION 3 
    No damage is caused to the differential, 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 and 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 workplace 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:
  • Differentials and parts.
  • Tools and equipment.

    Attributes, descriptions, characteristics and properties:
  • Types of gears, metals and lubricants.

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

    Purpose of:
  • Arranging parts in sequence.
  • Cleaning parts.
  • Following work place procedures.

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

    Theory: rules, principles, laws relating to:
  • Lubrication.
  • Gears.
  • Ratios.
  • Friction.
  • Torque.
  • Principals of differential operation.
  • Powerflo.

    Relationships, systems:
  • Interaction of the various parts in relation to the differential 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 the repair of differentials. 

  • 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 the repairing of differentials. 

  • UNIT STANDARD CCFO ORGANISING 
    Organise and manage myself and my activities.
  • When preparing the differential for repair.
  • When working in accordance with service and flat rate schedules.
  • When managing resources and my time. 

  • UNIT STANDARD CCFO COMMUNICATING 
    Communicate effectively.
  • 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 special tools and equipment to repair and assemble the manual transmission.
  • 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 basic interaction of differential components and parts in relation to the operation of the drive train of a vehicle. 

  • 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 
    N/A 

    QUALIFICATIONS UTILISING THIS UNIT STANDARD: 
      ID QUALIFICATION TITLE PRE-2009 NQF LEVEL NQF LEVEL STATUS END DATE PRIMARY OR DELEGATED QA FUNCTIONARY
    Core  78525   Further Education and Training Certificate: Automotive Repair and Maintenance  Level 4  NQF Level 04  Reregistered  2023-06-30  As per Learning Programmes recorded against this Qual 
    Elective  58539   Further Education and Training Certificate: Automotive Repair and Maintenance  Level 4  NQF Level 04  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.
     
    1. Coastal Kzn F.E.T. College - Swinton Road Campus 
    2. DON-DER TRUCK REPAIRS TRUST 
    3. Eastcape Midlands Public FET College - Uitenhage (High Street)Campus 
    4. Ekurhuleni West Public FET College - Germiston Campus 
    5. JMC TECHNICAL TRAINING (Bloemfontein)(TP) 



    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.