Service & Maintenance - Ferm WEM1042 Traduction De La Notice Originale

• In the immediate vicinity of the stationary
workstations, the walls should not be brightly
colored or glossy. Windows must be coated
with suitable paint to at least eye-level to
prevent radiation reflecting or passing
through.
Bringing into use
Fig. 3
Tip: Before you start welding difficult workpieces
it is best to first try the welding out on a test piece.
• Ensure a clean workpiece: remove any rust,
grease and paint residues.
• Set the required current intensity using the
knob on the front of the welding appliance.
The choice of current intensity depends on
the workpiece and the type of electrode used.
• Place the part of the electrode without coating
in the electrode holder and connect the earth
terminal to the workpiece.
• Switch the welding appliance on with the
main switch.
• Keep the welding mask in front of your face
and move the point of the electrode over the
workpiece as if you were striking a match.
This is the best way to start the welding arc.
Do not strike the workpiece with the
electrode. This will damage the electrode and
impede the creation of the welding arc.
• After creating the welding arc immediately try
to keep the distance between point of the
electrode and the workpiece equal. Keep this
distance equal to the diameter of the
electrode. Keep this distance as constant as
possible during welding.
• Move the electrode in a gradual pulling
movement over the workpiece.
• Keep the angle between electrode and
workpiece between 60° and 70° in the
direction of movement.
• When the welded joint has been made, break
the welding arc by removing the electrode
from the workpiece.
• Switch off the welding appliance.
N.B. If you leave the welding appliance
on, the likelihood is great that the
electrode will make contact (through the
work bench) with the earth cable and
spontaneously start to weld.
• Remove the slag from the welded joint with a
scaling hammer.
8
Take care for hot flying metal particles.
Always wear protective goggles.
• Never weld over slag residues: the slag forms
an insulating and contaminated layer, and as
a result weakens the weld (so-called slag
inclusion).
• Brush the weld clean using a wire brush.
N.B. The workpiece is still at a very high
temperature.
Do not leave the hot workpiece
unattended.
Indicator lamp temperature
Fig.1
When the temperature of the welding appliance
becomes too high, the built-in thermostat will
switch off (indicator light comes on). The built-in
ventilator cools the machine. After cooling the
lamp goes off again.
Preferably allow the machine a sufficient time to
cool down; with intensive welding the likelihood is
great that the thermal cut-out will trigger again
after a few minutes.
5. SERVICE & MAINTENANCE
Make sure that the machine is
disconnected before carrying out any
maintenance.
This machine has been designed to operate over
a long period of time with a minimum of
maintenance. Continuous satisfactory operation
depends upon proper machine care and regular
cleaning.
Malfunction
Should the machine fail to function correctly, a
number of possible causes and the appropriate
solutions are given below:
The welding appliance is not working.
• Earth terminal does not have good contact
with the workpiece.
• Electrode is not properly positioned in its
holder.
• Thermal cut-out switched off.
• Fusing defective (in meter box), or the thermal
protection was burned.
• The cable is broken.
• The switch is defective/contact your dealer.