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Telwin TECHNOLOGY 150 Manual

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pole, connect according to either type to the (+) or (-) quick
TROUBLESHOOTING
plugs.
IN CASE OF UNSATISFACTORY FUNCTIONING,
- It is most important that the user refers to the maker's
BEFORE SERVICING MACHINE OR REQUESTING
instructions indicated on the stick electrode packaging.
ASSISTANCE, CARRY OUT THE FOLLOWING CHECK:
This will indicate the correct polarity of the stick electrode
- Check that the welding current, which is regulated by the
and the most suitable current.
potentiometer with a graduated amp scale, is correct for
- The welding current must be regulated according to the
the diamter and electrode type in use.
diameter of the electrode in use and the type of
- Check that when general switch is ON the relative lamp is
the joint to be carried out: see below the currents
ON. If this is not the case then the problem is located on the
corresponding to various electrode diameters:
mains (cables, plugs, outlets, fuses, etc.)
- Check that the yellow led (ie. thermal protection
ø Electrode (mm) Welding current (A)
interruption- either over or undervoltage or short circuit) is
min. Max.
not lit.
1.6 25 - 50
- Check that the nominal intermittance ratio is correct. In
2 40 - 80
case there is a thermal protection interruption, wait for the
2.5 60 - 110
machine to cool down, check that the fan is working
3.2 80 - 160
properly.
4 120 - 200
- Check the main power supply voltage: if the maintenance
voltage level is too high or too low the machine will
- The user must consider that, according to the electrode
continue to be immobilised, automatic reset will occur only
diameter, higher current values must be used for flat
if the voltage returns to the pre-set levels for the mains
welding, whereas for vertical or overhead welds lower
supply.
current values are necessary.
- Check that there is no short-circuit at the output of the
- The mechanical character of the weld will be determined
machine: if this is the case eliminate the incovenience.
not only by the current intensity used, but also by other
- Check that all connections of the welding circuit are
parameters such as the diameter and quality of the
correct, particularly that the work clamp is well attached to
electrode, the arc length , the speed and position of the
the workpiece, with no interferring material or surface-
user. It will also depend on the state of the electrodes in
coverings (ie. Paint).
use, which should be protected from damp by their
packaging.
_____________(D)____________
WELDING PROCEDURE
- Holding the mask IN FRONT OF THE FACE, strike the
BEDIENUNGSANLEITUNG
electrode tip on the workpiece as if you were striking a
match. This is the correct strike-up method.
WARNING: do not hit the electrode on the workpiece, this
could damage the electrode and make strike-up difficult.
- As soon as arc is ignited, try to maintain a distance from
the workpiece equal to the diameter of the electrode in
use. Keep this distance as much constant as possible for
the duration of the weld. Remember that the angle of the
electrode as it advances should be of 20-30 grades.
- At the end of the weld bead, bring the end of the electrode
backward, in order to fill the weld crater, quickly lift the
electrode from the weld pool to extinguish the arc.
CHARACTERISTICS OF THE WELD BEAD
Fig. E
MAINTENANCE
WARNING!
NEVER REMOVE PANELS OR OPERATE WITHIN THE
UNIT WITHOUT DISCONNECTING THE MAINS POWER
SUPPLY. CHECKING OPERATIONS WHEN THE UNIT IS
UNDER VOLTAGE MAY CAUSE SERIOUS ELECTRIC
- Vor Ersatz der Verschleißteile des Schweißbrenners ist
SHOCK BECAUSE OF POSSIBLE DIRECT CONTACT
der Netzstecker zu ziehen.
WITH LIVE PARTS.
- Regularly inspect machine according to frequency of use
and dustiness of work area. Remove dust inside the
machine with a low pressure air flow.
- When check operaton is over reassemble panels
tightening all fixing screws well.
- Under no circumstances carry out welding operations
while the machine is still open.
ACHTUNG:
VOR GEBRAUCH DER MASCHINE LESEN SIE
SORGFÄLTIG DIE BETRIEBSANLEITUNG
SICHERHEITSNORMEN
- Vermeiden Sie direkten kontakten mit dem
Schweißstromkreis. Die Leerspannung des Generators
kann unter Umständen gefährlich sein.
- Bevor Sie Installationen oder Reparatur-und
Prümassnahmen ausführen, schalten Sie unbedingt
das Gerät von der Stromquelle ab.
-
- Führen Sie die Elektroinstallation gemäß der Normen
und Gesetze zur Vermeidung von Arbeitsunfällen durch.
- Vergewissern Sie sich, dass die Steckdose korrekt
geerdet ist.
- Verwenden Sie nie das Gerät in feuchter oder nasser
Umgebung oder bei Regen.
- Verwenden Sie keine Leitungen mit schlechten
Isolierung oder verstärkten Verbindungen.
Die Schweißmaschine darf ausschließlich an ein
Versorgungsnetz mit geerdetem Nulleiter
angeschlossen werden.
- 9 -
… 9 …


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