3.4 Soldering in Vehicle systems

• describe soldering as used in vehicle systems
• identify tools and equipment used in soldering vehicle systems
• perform soft soldering on vehicle systems
• appreciate the importance of soldering in vehicle systems

“Where is soldering used in vehicle systems?”

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1. Where a joint is soldered
   40 min · 1 practice tasks · quiz
   Name the vehicle joints this bay may solder and the joints it leaves alone.
2. The filler melts first
   40 min · 1 practice tasks · quiz
   Use the 60/40 reel figures and show that the copper parent stays solid.
3. Iron, flux, brush and bit
   40 min · 1 practice tasks · quiz
   Identify the seven soldering tools named in the design and the heat source this class uses.
4. Rosin on the electrical joint
   40 min · 1 practice tasks · quiz
   Choose rosin flux for the cable lug and keep acid flux off the wire.
5. A bench that harms nobody
   40 min · 1 practice tasks · quiz
   Set the soldering bench so the hot bit, the lead filler and the scrap are controlled.
6. Clean and fitted before heat
   40 min · 1 practice tasks · quiz
   Clean the copper to bright metal and fit the cable so the bare length is inside the card.
7. Heat the lug, then the solder
   40 min · 1 practice tasks · quiz
   Tin the bit, heat the copper, and let solder flow into a close barrel.
8. Read the finished joint
   40 min · 1 practice tasks · quiz
   Judge a 60/40 lug by its surface and by the defects that mean it is remade.
9. Make one sound lug
   40 min · 1 practice tasks · quiz
   Run the full bench sequence on one copper lug and stop only when the defect count is zero.
10. Why the lug has to be sound
    40 min · 1 practice tasks · quiz
    Connect a sound soldered lug to a circuit that keeps working, and leave the refused joints refused.