Page 56 - Electrician - TT (Volume 1)

ELECTRICIAN - CITS

Dressing the bit
To dress an un plated bit follow the procedure stated below

1 Switch off, unplug the iron and allow it to cool.
2 Remove the bit from the iron if possible.
3 Mount the bit in a vice.
4 File to shape.

Iron plated bits are not dressed. It is replaced by new one when the bit is worn out.
Cleaning the bit
Bits are cleaned when the iron is in hot condition. Un-plated bits are cleaned by using sponge pad or wire brush.
Iron plated bits are cleaned using sponge pad only.
2 Soldering withsoldering gun
It is used for individual soldering, Servicing and repair work. The electric current flowing through a wire coil
heating it. The temperature is difficult to check and overheating occur.

3 Soldering with a flame
It is used when the heat capacity of the soldering iron is insufficient. It is used in larger jobs like piping and cable
work, vehicle body repairs etc. Cleaned, flux coated joint surface is heated with blow lamp and solder is kept over
the heated surface and it melts and spread over the soldering surface. This method requires skilful management
of flame.

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CITS : Power - Electrician & Wireman - Lesson 5 - 12