SOUTH AFRICAN QUALIFICATIONS AUTHORITY

							                       SOUTH AFRICAN QUALIFICATIONS AUTHORITY
                                 REGISTERED UNIT STANDARD:

                   Test and report on condition of vehicle charging system
SAQA US ID                  UNIT STANDARD TITLE
15110                       Test and report on condition of vehicle charging system
SGB NAME                    ABET BAND                  PROVIDER NAME
SGB Vehicle Maintenance     Undefined


FIELD DESCRIPTION                                      SUBFIELD DESCRIPTION
Manufacturing, Engineering and Technology              Manufacturing and Assembly
                   UNIT STANDARD
UNIT STANDARD CODE                                     NQF LEVEL                 CREDITS
                   TYPE
MET-MNA-0-SGB MAP           Regular                    Level 3                   4
REGISTRATION START REGISTRATION END                    REGISTRATION              SAQA DECISION
DATE               DATE                                NUMBER                    NUMBER
2003-08-13                  2006-08-13                 15110                     SAQA 0249/03


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 to read and interpret
charging system diagrams, know the components and remove, diagnose, test and replace
conventional automobile charging systems in accordance with workshop and manufactures
procedures. This will contribute to the exit level outcomes required for the National Certificate in
maintaining vehicles and related qualifications.

LEARNING ASSUMED TO BE IN PLACE
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, power tools, and measuring equipment to
maintain a safe and productive working environment.

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.

UNIT STANDARD OUTCOME HEADER
N/A


Specific Outcomes and Assessment Criteria:

SPECIFIC OUTCOME 1
Demonstrate ability to read, discuss, interpret automobile charging system circuit diagram symbols.
OUTCOME RANGE
Symbols include alternators (internal and external types), regulators, rectifiers, charging lamp, fuse
and fuse holders, brushes and ignition switch.

ASSESSMENT CRITERIA

ASSESSMENT CRITERION 1
Results achieved
 Charging system circuit diagrams and symbols are correctly interpreted and operation understood.
 Automobile charging system is functioning to manufacturer`s specifications.
 Charging component functions are understood.
 Problems are correctly diagnosed.
 Relevant documentation is correctly filled in.
 Work area is restored and tools and equipment are cleaned and packed away.

Indicators
 Protective equipment is correctly used.
 Tools are selected and used correctly.
 Safe working practices are adhered to when carrying out activities.
 Test equipment is used correctly.
 Bench testing is carried out correctly.
 Removal and fitting procedures are followed correctly.
 Diagnosing processes are carried out correctly.

Understanding confirmed

Respond to "what if" and "why" questions covering:
 Charging system operation.
 Fan belt.
 End casings (brackets).
 Product specific alternator procedures (manufacturer`s specifications).
 Component functions.
 Diagnosing procedures.

SPECIFIC OUTCOME 2
Select, explain and discuss the various components used in automobile charging systems.
OUTCOME RANGE
 Electrical components include alternators (internal and external types), regulators, rectifiers,
charging lamp, fuse and fuse holders, brushes and ignition switch.
 Mechanical components include fan belt, pulley, alternator fan, bearings and end casings
(brackets)

ASSESSMENT CRITERIA

ASSESSMENT CRITERION 1
Results achieved
 Charging system circuit diagrams and symbols are correctly interpreted and operation understood.
 Automobile charging system is functioning to manufacturer`s specifications.
 Charging component functions are understood.
 Problems are correctly diagnosed.
 Relevant documentation is correctly filled in.
 Work area is restored and tools and equipment are cleaned and packed away.

Indicators
 Protective equipment is correctly used.
 Tools are selected and used correctly.
 Safe working practices are adhered to when carrying out activities.
 Test equipment is used correctly.
 Bench testing is carried out correctly.
 Removal and fitting procedures are followed correctly.
 Diagnosing processes are carried out correctly.

Understanding confirmed

Respond to "what if" and "why" questions covering:
 Charging system operation.
 Fan belt.
 End casings (brackets).
 Product specific alternator procedures (manufacturer`s specifications).
 Component functions.
 Diagnosing procedures.

SPECIFIC OUTCOME 3
Remove, fit alternator from/to vehicle using correct tools in safe, aware manner according
procedure
OUTCOME NOTES
Remove and fit an alternator from/to a vehicle using the correct tools in a safe and aware manner
according to procedures.
OUTCOME RANGE
Procedures include workplace procedures and manufacturers specifications.

ASSESSMENT CRITERIA

ASSESSMENT CRITERION 1
Results achieved
 Charging system circuit diagrams and symbols are correctly interpreted and operation understood.
 Automobile charging system is functioning to manufacturer`s specifications.
 Charging component functions are understood.
 Problems are correctly diagnosed.
 Relevant documentation is correctly filled in.
 Work area is restored and tools and equipment are cleaned and packed away.

Indicators
 Protective equipment is correctly used.
 Tools are selected and used correctly.
 Safe working practices are adhered to when carrying out activities.
 Test equipment is used correctly.
 Bench testing is carried out correctly.
 Removal and fitting procedures are followed correctly.
 Diagnosing processes are carried out correctly.

Understanding confirmed

Respond to "what if" and "why" questions covering:
 Charging system operation.
 Fan belt.
 End casings (brackets).
 Product specific alternator procedures (manufacturer`s specifications).
 Component functions.
 Diagnosing procedures.

SPECIFIC OUTCOME 4
Diagnose charging system problems.
OUTCOME RANGE
Problems include charging light does not go out when ignition is turned on, charging light does not
go out when engine is running, battery requires frequent recharging, battery requires frequent
topping up.

ASSESSMENT CRITERIA

ASSESSMENT CRITERION 1
Results achieved
 Charging system circuit diagrams and symbols are correctly interpreted and operation understood.
 Automobile charging system is functioning to manufacturer`s specifications.
 Charging component functions are understood.
 Problems are correctly diagnosed.
 Relevant documentation is correctly filled in.
 Work area is restored and tools and equipment are cleaned and packed away.

Indicators
 Protective equipment is correctly used.
 Tools are selected and used correctly.
 Safe working practices are adhered to when carrying out activities.
 Test equipment is used correctly.
 Bench testing is carried out correctly.
 Removal and fitting procedures are followed correctly.
 Diagnosing processes are carried out correctly.

Understanding confirmed

Respond to "what if" and "why" questions covering:
 Charging system operation.
 Fan belt.
 End casings (brackets).
 Product specific alternator procedures (manufacturer`s specifications).
 Component functions.
 Diagnosing procedures.

SPECIFIC OUTCOME 5
Complete fault finding reports and requisition forms.

ASSESSMENT CRITERIA

ASSESSMENT CRITERION 1
Results achieved
 Charging system circuit diagrams and symbols are correctly interpreted and operation understood.
 Automobile charging system is functioning to manufacturer`s specifications.
 Charging component functions are understood.
 Problems are correctly diagnosed.
 Relevant documentation is correctly filled in.
 Work area is restored and tools and equipment are cleaned and packed away.

Indicators
 Protective equipment is correctly used.
 Tools are selected and used correctly.
 Safe working practices are adhered to when carrying out activities.
 Test equipment is used correctly.
 Bench testing is carried out correctly.
 Removal and fitting procedures are followed correctly.
 Diagnosing processes are carried out correctly.

Understanding confirmed

Respond to "what if" and "why" questions covering:
 Charging system operation.
 Fan belt.
 End casings (brackets).
 Product specific alternator procedures (manufacturer`s specifications).
 Component functions.
 Diagnosing procedures.



UNIT STANDARD ACCREDITATION AND MODERATION OPTIONS
My assessment will be governed by the policies and guidelines of the MERSETA Education and
Training Quality Assurer who has jurisdiction over this field of learning. My assessor will (at the very
least) be accredited and have a technical qualification in this learning area.
I can be assessed in the language of my choice although if I have to report incidents or conditions to
someone else, I will be assessed on my ability to report in the language commonly used in my
working environment.
I will be assessed in the workplace but I can submit documents, projects, test results and
assignments that were not produced in the workplace.
I can be assessed against this unit standard to obtain credits or as part of an integrated assessment
for a qualification.

UNIT STANDARD ESSENTIAL EMBEDDED KNOWLEDGE
1. Names and functions of:
 Charging system components
 Bench testing and equipment

2. Purpose of:
 Using removal and fitting procedures
 Of using product specific disassembling and assembling procedures
 Of the regulator(s)
 Of charging systems
 Purpose of completing relevant documentation

3. Attributes, descriptions, characteristics and properties:
 Characteristics of an alternator/generator

4. Sensory cues:
 What I see, hear, feel, smell during the process
5. Causes and effects, implications of:
 Implications of not using personal protection
 Implications of not following procedures
 Implications of a faulty charging system

6. Procedures and techniques:
 Safety procedures
 Testing procedures
 Removal and fitting procedures
 Diagnosing and testing

7. Regulations, legislation, agreements, policies, standards:
 Related manufacturer`s specifications
 Applicable safety, health and environmental legislation

8. Theory: rules, principles, laws
 Magnetism
 Alternator/generator principles
 Rectification (single phase/three phase)
 Regulators (variants: electronic external/internal, vibrating)

9. Relationships, systems
 Relationship of the battery as the recipient of the charging system to the charging system

UNIT STANDARD DEVELOPMENTAL OUTCOME
N/A

UNIT STANDARD LINKAGES
N/A


Critical Cross-field Outcomes (CCFO):

UNIT STANDARD CCFO IDENTIFYING
Identify and solve problems:
 Recognise situations that require action and correct when necessary.

UNIT STANDARD CCFO WORKING
Work effectively with others:
 When diagnosing faults on charging systems.

UNIT STANDARD CCFO ORGANIZING
Organise and manage myself and my activities:
 Apply the correct procedures for using, storing and looking after equipment, tools, test equipment,
components and chemicals.
 Plan and prepare job function activities.

UNIT STANDARD CCFO COMMUNICATING
Communicate effectively:
 Use common names for tools and equipment.
 Fill in and use fault reports, requisition forms and job cards.

UNIT STANDARD CCFO SCIENCE
Use science and technology:
 Apply electromagnetic alternator/generator principles.
 Apply diode rectification principles.

UNIT STANDARD CCFO DEMONSTRATING
Demonstrate an understanding of the world as a set of related systems:
 Relate the use of automobile charging systems to that of that of other charging/generating
systems.

UNIT STANDARD ASSESSOR CRITERIA
  N/A

  UNIT STANDARD NOTES
  N/A



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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.