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TM 9-254
4-13.
Soldering Techniques-Continued
Figure 4-24. Position of Tip for Maximum Heat Transfer
(3)
Applying heat. Prior to applying heat, the work must first be properly and rigidly supported. If a joint is
moved while the solder is cooling and setting, the solder will be broken or weakened. Position the
soldering iron against the work so that the tip will transfer the greatest amount of heat to the work being
joined (fig. 4-24).
(4)
Applying solder. The areas to be joined must be heated to the correct temperature to cause the solder
to melt. The solder is then applied to the joint and not to the soldering iron; however prior to touching
the tip to the joint a very small quantity of solder may be applied to the tip of the iron to improve heat
transfer. Apply enough solder to the connector to provide smooth well formed fillets between the
surfaces being soldered (fig. 4-25).
4-29
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