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SOUTH AFRICAN QUALIFICATIONS AUTHORITY 
REGISTERED UNIT STANDARD THAT HAS PASSED THE END DATE: 

Test and analyse vehicle perfomance on a dynamometer 
SAQA US ID UNIT STANDARD TITLE
244171  Test and analyse vehicle perfomance on a dynamometer 
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  6 
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 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 preparing a vehicle to be tested on a chassis dynamometer and to record and submit the test results. This will contribute to the exit level outcomes required for the National Certificate in automotive repair and maintenance and related qualifications. 

LEARNING ASSUMED TO BE IN PLACE AND RECOGNITION OF PRIOR LEARNING 
This unit standard has been designed as part of a progression. It is one of a series of unit standards for maintaining vehicles in the field of manufacturing and engineering. It is assumed that the learner has already learned the use of engineering hand tools, workshop equipment, power tools and measuring equipment, and to remove 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 under supervision at regular intervals and according to workplace and workshop manual specifications and occupational safety, health and environmental legislation. 

Specific Outcomes and Assessment Criteria: 

SPECIFIC OUTCOME 1 
Read and interpret the job instructions. 
OUTCOME RANGE 
  • Interpret job instructions include obtaining technical data, the identification and selection of tools and equipment and the type of vehicle.
  • Type of vehicle includes all drive axle configurations. 
    		•

    ASSESSMENT CRITERIA     

    ASSESSMENT CRITERION 1 
    The job instructions are interpreted and confirmed in terms of the requirements of the task. 

    ASSESSMENT CRITERION 2 
    Appropriate tools and equipment are obtained in accordance with the job instructions. 

    ASSESSMENT CRITERION 3 
    Workshop manuals are selected in accordance with the vehicle and dynamometer. 

    ASSESSMENT CRITERION 4 
    The differences in the design of vehicle axle configurations are explained in terms of their functions and limitations. 

    SPECIFIC OUTCOME 2 
    Prepare the vehicle for analysis. 
    OUTCOME RANGE 
    Preparing includes calibrating the dynamometer to the vehicle specifications, connecting the vehicle to the dynamometer and ensuring the engine is at operating temperature. 

    ASSESSMENT CRITERIA     

    ASSESSMENT CRITERION 1 
    The dynamometer is calibrated according to the vehicle specifications. 

    ASSESSMENT CRITERION 2 
    The dynamometer is checked for functionality in accordance with workshop safety procedures. 

    ASSESSMENT CRITERION 3 
    The consequences of using a dynamometer that has not been correctly prepared are explained in terms of the results and potential damage to the engine. 

    ASSESSMENT CRITERION 4 
    The vehicle is prepared for testing in accordance with workplace procedures. 

    ASSESSMENT CRITERION 5 
    The vehicle is positioned and secured in accordance with workplace requirements. 

    ASSESSMENT CRITERION 6 
    The consequences of not correctly securing and connecting the vehicle are explained in terms of potential damage and safety hazards. 

    SPECIFIC OUTCOME 3 
    Test vehicle, record and submit results. 
    OUTCOME RANGE 
  • Test includes to run the vehicle to specifications and load ranges.
  • Specifications and load ranges include revolutions per minute (rpm), Kilometres per hour (km/h), output, torque and wheel horse power (HP).
  • Recording of results include computer print out and/or written reports.
  • Submit reports to relevant department. 
    		•

    ASSESSMENT CRITERIA     

    ASSESSMENT CRITERION 1 
    The vehicle is tested in accordance with vehicle manufacturer specifications. 

    ASSESSMENT CRITERION 2 
    Load ranges are applied in accordance with vehicle manufacturer specifications. 

    ASSESSMENT CRITERION 3 
    The dynamometer is operated in accordance with workplace and manufacturer requirements. 

    ASSESSMENT CRITERION 4 
    The consequences of using a dynamometer incorrectly are explained in terms of potential damage to the vehicle and incorrect readings. 

    ASSESSMENT CRITERION 5 
    Results of the dynamometer test are recorded in accordance with workplace requirements. 

    ASSESSMENT CRITERION 6 
    Results are distributed and filed in accordance with workplace requirements. 

    ASSESSMENT CRITERION 7 
    Work is conducted in accordance with flat rate time schedules. 

    SPECIFIC OUTCOME 4 
    Disconnect and remove vehicle and restore the test room. 
    OUTCOME RANGE 
  • Disconnect includes all couplings, hoses, cables, locking and safety devices.
  • Restore test room includes the closing of valves, clean tools and equipment and water and/or oil spil. 
    		•

    ASSESSMENT CRITERIA     

    ASSESSMENT CRITERION 1 
    The vehicle is disconnected from the dynamometer in accordance with manufacturer specifications. 

    ASSESSMENT CRITERION 2 
    All couplings are disconnected without causing damage to the coupling or the vehicle. 

    ASSESSMENT CRITERION 3 
    Tools are used in accordance with their design. 

    ASSESSMENT CRITERION 4 
    The equipment and test room are restored to a safe and serviceable condition in accordance with workplace requirements. 

    ASSESSMENT CRITERION 5 
    The consequences of not correctly restoring the workplace to a serviceable condition are explained in terms of potential damage and safety hazards. 

    SPECIFIC OUTCOME 5 
    Apply safety concepts during dynamometer testing of the vehicle. 
    OUTCOME RANGE 
  • Safe moving of the vehicle in and out of the test room.
  • 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 testing of the vehicle. 

    ASSESSMENT CRITERION 2 
    The vehicle is tested without incident, accident or injury. 

    ASSESSMENT CRITERION 3 
    No damage is caused to the dynamometer, vehicle or tools. 

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


    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:
  • A chassis dynamometer, controls, special tools and equipment.
  • Safety attachments and securing mechanisms.

    Attributes, descriptions, characteristics and properties:
  • Type of vehicles and various axle configurations.
  • Model and serial number.

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

    Purpose of:
  • Chassis dynamometer testing the engine.
  • Using product specifications and load ranges.
  • Fluids and additives.
  • Recording and submitting information.

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

    Theory: rules, principles, laws of:
  • Power.
  • Torque.
  • Rated speed.
  • Wheel horse power.
  • Ratings: DIN and SAE.

    Relationships, systems:
  • Engine output at various speeds and loads in relation to performance. 
    		•

    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 chassis dynamometer testing procedures. 
    		•

    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 chassis dynamometer testing. 
    		•

    UNIT STANDARD CCFO ORGANISING 
    Organise and manage myself and my activities:
  • When preparing the test room, the vehicle and test procedures.
  • 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 computer printouts and 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 perform chassis dynamometer testing.
  • 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. 
    		•

    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
    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.
     
    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.