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Understanding Vehicle Electrical System Protection Methods

Learn about the three types of circuit defects: shorts, grounds, and opens, as well as how fuses, fusible links, maxi-fuses, and circuit breakers protect your vehicle's electrical system. Discover proper techniques for pulling and replacing fuses and ensuring circuit safety. Introduction to block wiring diagrams.

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Understanding Vehicle Electrical System Protection Methods

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Presentation Transcript

  1. Do you ever feel overworked? • Your vehicles electrical system can feel the same way. CBC

  2. Circuit Protection

  3. The three types of circuit defects are: • Shorts • Grounds • Opens • poor connections C75-78 L64-71

  4. Fuses (Page C52 ) • Glass Cartridge How to pull them

  5. Two reasons for blowing Where do they blow? Why?

  6. Fuses (Page C52) • Ceramic • Used by. . . • Metal/glass replacement • Caution in pulling

  7. Fuses (Page C52) • Auto-fuse (blade type) • Mini-fuse • Maxi-fuse • Test holes • Pulling

  8. New Circuits ? • What size of fuse should I install? Page L53

  9. Fusible Links • Location • Circuits protected • Insulation • Visual checks don’t work • Installing a new link • Size • Soldering C54-55 L53-54

  10. Maxi-fuses • Combination blade / cartridge • Safer • Cover fewer circuits than a fusible link C52

  11. Circuit Breaker • Why circuit breakers • Styles • Deterioration C56 & L55

  12. End of protection Next Slide new topic

  13. Introduction to Block Wiring diagrams

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