Lighting and Wiring Services. Vocabulary 1.Fusible link 11. open circuit 2.Primary wire 12. short...
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Transcript of Lighting and Wiring Services. Vocabulary 1.Fusible link 11. open circuit 2.Primary wire 12. short...
![Page 1: Lighting and Wiring Services. Vocabulary 1.Fusible link 11. open circuit 2.Primary wire 12. short circuit 3.Secondary wire 13. short to ground. 4.Cable.](https://reader035.fdocuments.in/reader035/viewer/2022081603/56649e355503460f94b23e1c/html5/thumbnails/1.jpg)
Lighting and Wiring Services
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Vocabulary
1. Fusible link 11. open circuit
2. Primary wire 12. short circuit
3. Secondary wire 13. short to ground.
4. Cable
5. AWG
6. Filament
7. Type 1 headlamp
8. Halogen headlamp
9. Bulb trade #
10. Signal flasher
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•
Electric Symbols Are used on a schematic to describe an
electrical Circuit .
•
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Know these Elec symbols:
• Battery Transistor
• Switch Relay
• Fuse Resistor
• Light bulb coil
• Ground Motor
• Connecter
• Diode
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Electric Symbols :
![Page 6: Lighting and Wiring Services. Vocabulary 1.Fusible link 11. open circuit 2.Primary wire 12. short circuit 3.Secondary wire 13. short to ground. 4.Cable.](https://reader035.fdocuments.in/reader035/viewer/2022081603/56649e355503460f94b23e1c/html5/thumbnails/6.jpg)
Electrical Symbols
![Page 7: Lighting and Wiring Services. Vocabulary 1.Fusible link 11. open circuit 2.Primary wire 12. short circuit 3.Secondary wire 13. short to ground. 4.Cable.](https://reader035.fdocuments.in/reader035/viewer/2022081603/56649e355503460f94b23e1c/html5/thumbnails/7.jpg)
Schematic – Road map of an electrical circuit using electrical
symbols.
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Power window schematic
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Wires have color codes & circuit numbers
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American Wire Gauge
•AWG OHMS PER WIRE Wire Dia. Amps SIZE 1000 FT. DIAMETER in MM 10’
• 2 .1563 .257 10 200 8 .6281 .128 8.3 2310 .9987 .101 5.0 1412 1.588 .080 3.0 9.314 2.524 .064 2.5 5.7 16 4.018 .050 1.5 3.618 6.386 .032 .75 2.3
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Fuses
• Fuses act as a current limiter.
• They protect a circuit from to much amperage.
• Each fuse has a specific Amperage rating that the conductor will melt at.
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European & older Domestic glass fuses
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Modern - macro, mini & micro fuses
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Fuses
• Always check suspect fuses with an ohm meter or test light.
• Checking by “eye” is not sufficient.
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Fuseable links
![Page 16: Lighting and Wiring Services. Vocabulary 1.Fusible link 11. open circuit 2.Primary wire 12. short circuit 3.Secondary wire 13. short to ground. 4.Cable.](https://reader035.fdocuments.in/reader035/viewer/2022081603/56649e355503460f94b23e1c/html5/thumbnails/16.jpg)
A fuse puller is helpful when removing fuses.
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Circuit Breakers & flashers use Bi Metallic strips
Heat affects Bi metal strip and opens or closes switch.
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SolderlessTerminals
• Repairing wiring ends• Color coded with
different size crimping tabs from 22 Gauge to 10 Gauge.
• Yellow = 10 – 12G• Blue = 14 – 16G• Red = 18 – 22G
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Crimping Tool
• Special tool that can be used to strip wire & crimp terminals.
• When wire end is poorly crimped it can create excessive resistance and lead to early failure of the circuit.
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Crimping
• Crimping an open type connector end.
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Soldering
• A wire terminal can be soldered to the wire to make a professional connection.
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Tinning a Wire
• After the wire is stripped, tin a wire by heating it and applying solder before attempting to solder the terminal to it.
• Solder is 60% lead & 40% tin.
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Joining Two Wires (splicing)
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Manufacture approved wire splice & solder
Correct – finished wire splice.
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Heat shrink tube
• Heat shrink tubing is used to insulate the finished solder joint.
• Make sure to put tube over wire before you solder.
• Sharp points in solder joint should be avoided.
![Page 26: Lighting and Wiring Services. Vocabulary 1.Fusible link 11. open circuit 2.Primary wire 12. short circuit 3.Secondary wire 13. short to ground. 4.Cable.](https://reader035.fdocuments.in/reader035/viewer/2022081603/56649e355503460f94b23e1c/html5/thumbnails/26.jpg)
Adjusting head lights
• Head lights can be adjusted with 2 adjusting screws at head light mounts.
• Head Light aiming equipment is preferred, but aiming can be done manually against a garage door using a tape measure.
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Halogen Bulbs
• Many modern cars use Halogen head light bulbs
• Never touch the bulb with your fingers or hands during installation.
• Bulb holder turns ¼ of turn to lock.
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Brake, tail & marker lights
• Brake , tail, & marker lights can be tested & changed.
• Most bulbs have a socket that holds the bulb & indexes with the light body.
• Sockets are a common source of poor connections.
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Dual filament bulb
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Testing a light bulb
• Use an Ohm meter to test light bulbs.
• An open in the tiny light filament will be very hard to see.
• The # on the bulb socket will be needed when trying buy a new bulb.
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A 12 volt – non powered test light is a really helpful tool when doing wiring or lighting work on
your car.
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Good luck on you Test!