Powerplus POW726 SOLDERING GUN 175W EN - Manual (Page 4)

POW726 EN
Copyright © 2014 VARO 4 www.varo.com

You must avoid this above all in electronic circuits since most acid pastes are
corrosive and reduce the service life of electronic wiring.
5.2.1 Replacement of thesoldering tip
Pull out the mains plug!
 The tip and housing of the soldering gun are connected by means of a contact piece
so that the soldering gun can be comfortably repaired and changed. Wear and tear of
the tip after longer periods of use makes replacement necessary at regular intervals.

To replace the soldering tip:

a. Unscrew the 2 fixing screws, which hold the tip and the housing together, and
remove the old tip.

b. Put in the new tip 1 and tighten up the two screws 2 again. The appliance is now
ready for work again.
5.3 Working indications
5.3.1 For good soldering
 The soldering joint must be reguline. Remove oxidation, grease and so forth by
means of mechanical (abrasive paper, brushes, and file) or chemical cleaners
(alcohol, fluxing agent).
 The soldering tip
 Give a good plating of soldering tin.
 Remove corrosion and scaling with a wet sponge.
 Never work on it with a file.
 Pre-tinplating of the parts which are to be tinplated makes the soldering easier and
ensures a perfect electrical contact
 Ensure that the wires are mechanically connected before soldering (twist together,
hook into place, attach round eyelets).

First heat up the soldering joint and then melt the solder over the soldering joint and
allow it to flow in.
 Melt as little solder as possible
 Keep the heat load (soldering time) as short as possible.

A perfect soldering joint is shiny and smooth .The edge shows a clean, bonding join
to the metal.
5.3.2 Soldering tin-solder
Soldering tin is essentially an alloy of tin and lead. The designation of 60/40 means a
combination of 60% tin with 40% lead. For electrically soldered joints, use only non-acid
solder and fluxing agent. For information on special solder for specific work, consult the
manufacturer.