Ferm 45
• When you’re scaling off the welding slack, protect
yourself from the hot iron by using eyeprotection
and gloves.
• The workpiece can misform during cooling off. Take
care.
IMMEDIATELY SWITCH OFF THE MACHINE
IN CASE OF:
• Malfunction of the mainsplug, -socket or damaged
cables.
• Broken switch.
• Smoke or smell caused by scorched insulation.
MAKE SURE THESE SAFETY RULES ARE NOT
BROKEN, OTHERWISE THE GUARANTEE PROVI-
SIONS WILL BE CANCELLED.
ELECTRICAL SAFETY
Always check that the mains voltage corresponds
to the voltage on the rating plate.
Replacing cables or plugs
Immediately throw away old cables or plugs when they
have been replaced by new ones. It is dangerous to insert
the plug of a loose cable in the wall socket.
Connect to the mains cable a standardized plug of ade-
quate capacity to which the yellow/green conductor of
the cable is to be connected. Set a standardized plug
equipped with fuses or an automatic switch; the correct
terminal is to be grounded to the distribution mains. Use
fuses of 16 Ampère Slow as a minimum.
Immediately throw away old cables or plugs when they
have been replaced by new ones. It is dangerous to insert
the plug of a loose cable in the wall outlet.
Using extension cables
Only use an approved extension cable suitable for the
power input of the machine. The minimum conductor
size is 1.5 mm
2
. When using a cable reel always unwind
the reel completely.
BEFORE OPERATING THE
MACHINE
EXECUTION OF WELD
Fig.A
After carrying out all electrical connections necessary
both on mains and welding circuits proceed in the follo-
wing way. Arc welding with an elektric welding machine
is a method in which the warmth is delivered by the arc.
This arc is made between the electrode and the work-
piece.
NB: Before carrying out difficult welds do a practise run,
only practice will allow you to obtain a neat and durable
weld.
The temperature of the arc is 4000° Celsius what makes
the electrode and the workpiece melt. As long as the arc
is maintained the electrode will melt and it will supply the
material for the connection.
The distance between the electrode and the workpiece
must be 1.5 - 4 mm, depending on the diameter of the
electrode and the material it is made of. The required
welding current is supplied by the welding machine. The
required capacity of the welding machine depends on the
connections to be made.
THE ELECTRODE
The electrode consists of an iron core with cover. This
cover consists partly of irondust. While welding the
cover will melt and it will vapor. This way a gas surrounds
the welding area protecting the melted iron from oxygen
in the air. Some parts of the cover will floot on the melted
iron (it is of less weight than the iron) and it will protect
the iron while cooling off. After cooling this cover can be
removed easily by a scaling hammer or steelbrush. Make
sure the cover of the electrode is not incapsulated by the
iron. This would make an unreliable connection.
Treat the electrodes with caution. The cover can be
damaged and this will make the welding very diffi-
cult. Make sure the electrodes are stored cool and dry.
Choice of the electrode
To make a good connection it is important to choose the
right electrode. Also the position in which you have to
make the connection, for example above your head, is
important while choosing the electrode. A normal elek-
trode can do most ordinary welding jobs.
Electrodes are available in three types:
1. Fast solidification
The cover consists of a lot organic material, which
give a good gasprotection. It can be used in all kinds of
positions, specially for vertical, downgoing connec-
tions.
2. Medium solidification
The cover consists of a lot organic material. Good
welding in all positions except vertical, downgoing
connections. They are useful for vertical, upgoing
connections.
4 Ferm
