Automotive Mechanics Level II: Engine Electrical Systems

Automotive Mechanics NTQF Level II Learning Guide #3

• Unit of Competence: Perform minor Engine Electrical Systems Service
• Module Title: Performing minor Engine Electrical Systems Service
• LG Code: EIS AUM2 M02 LO3-01
• TTLM Code: EIS AUM2 M04 0322
• Unit 3: Replace/Reassemble System Assemblies

Learning Guide Instructions

• Content Coverage: Carryout minor adjustments, Assembling system components, Conducting post-service/pre-delivery check
• Learning Outcomes: Carry out minor adjustments, Assemble system components, Conduct post-service/pre-delivery check
• Learning Activities: Read specific objectives, Read information sheets (pages 2), Accomplish self-check 3 (page 71), Teacher evaluation (satisfactory/unsatisfactory)

LG3: Replace/Reassemble System Assemblies

• Carrying Out Minor Adjustments: Visual inspection of cooling system hoses for leaks/damage (replace if needed), check radiator for leaks/dirt build-up (clean if necessary), check coolant level ("low" to "full" lines), use correct coolant type (green/orange, not rusty/cloudy), flush coolant system if contaminated.
• Coolant Condition: Use a coolant hydrometer to check antifreeze concentration (pickup/reservoir/squeeze bulb).
• Drive Belts: V-belts/V-ribbed belts used to drive various engine components (water pumps, power steering pumps, etc.).
• Inspection: Check condition of V-belts (worn/glazed edges, tears, splits, oil soaking, rust on pulleys, wear, damage); alignment (within 1/16 inch per foot). Maintain service life, and address pulley wear, misalignment.

Assembling System Components

• Specific instructions for connecting various parts of the engine (injector nozzle, cooling system, exhaust pipe, fuel pipes, high-pressure fuel pipes, nozzles, fuel filter).
• Instructions for connecting fuel pipes (fuel/electrical lead at thermostat), air/induction/exhaust manifolds, cooling system.

Conducting Post-Service/Pre-Delivery Check

• Documenting Results: Documentation is vital to record an organization's development, acquisition processes, and operation maintenance of technology systems. Documentation supports efficient usage of technology, accurate maintenance, and identifies/corrects program defects.
• Final Inspection: Ensure vehicle is returned in proper working condition with all safety features (brake system) checked, and all required work completed.
• Service Provision: Use job cards/checklists for rarely used procedures (instructions/steps), and record observations/documents.
• Record/Documentation: Running record of observations (every two minutes), capture problems, record completed work, maintain proper report formats/procedures. Time sampling used to record engine part repairs.

This quiz covers the competencies required to perform minor engine electrical systems service, focusing on adjustments and system assembly. It is designed to test knowledge on conducting inspections and post-service checks. Ideal for students in automotive mechanics courses looking to demonstrate their understanding of engine electrical systems.