Radio Shack 20W Soldering Starter Kit User Manual page 6

Replace the Soldering Tip
1. Unplug the power cord and let
the soldering iron cool down.
2. Use pliers to rotate and remove
the current tip.
3. Carefully thread the desired tip
into the iron and tighten with
pliers.
Tin the Soldering Iron Tip
"Tinning" means coating the soldering iron tip
with a small amount of solder.
1. Plug in the iron, switch on and wait one
minute. Then wipe the tip quickly on the
damp sponge to remove impurities and
oxides.
2. Tin the soldering tip by adding a small
amount of solder.
3. When the tip
becomes discolored
during use, wipe it
across the damp
cleaning sponge,
then tin it again.
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