10
Usage norms
CONTROL APPARATUS (fig. A)
Pos. 1
Supply switch. In the "O" posi-
tion the welder is off.
Pos. 2
Weld gas inlet coupling.
Pos. 3
Welder cable.
Pos. 4
Fast coupling TIG torch gas
tube .
Pos. 5
Fast coupling reverse polarity .
Pos. 6
TIG connector torch button.
Pos. 7
Fast coupling straight polarity.
FRONT PANEL (fig. B)
Pos. 1
"slope-down" potentiometer
(0÷5 sec.)
Pos. 2
Selector 3 weld procedures:
•
TIG "HF" for TIG weld with
high frequency arc strike
•
"Lift" type TIG for "lift" type
TIG weld without high fre-
quency
•
ELECTRODE for basic elec-
trode welding with automatic
"arc force" and "hot start"
devices.
Pos. 3
"Weld mode" selector: 2
STROKE, 4 STROKE
Pos. 4
Welding current adjust potenti-
ometer.
Pos. 5
Post-gas time adjustment
potentiometer (0,5÷25 sec.)
Pos. 6
THERMOSTAT yellow signal
light. When this light comes it
means that the overheat cut-off
has come on, because the
work cycle limit has been
exceeded. Wait for a few min-
utes before starting to weld
again.
Pos. 7
SUPPLY green signal light. If
this light comes on it means
that the welder is on and ready
for operation.
Connection of the
welding cables
ELECTRODE WELDING (MMA)
With the machine disconnected from the
supply, connect the welding cables to
the out terminals (positive and negative)
of the welder, connecting them to the
gripper and the earth, with the correct
polarity provided for the type of elec-
trode to be used (Fig. C).
Choosing the indications supplied by the
electrode manufacturer, the welding
cables must be as short as possible,
close to one other, and positioned at
floor level or close to it.
TIG WELDING
• Connect the gas pipe at the rear of the
machine to the Argon gas cylinder
then open it (pos. 5, fig. D).
• When the machine is switched off
connect the earth cable to the quick
coupling (positive)
(pos. 3, fig. D).
• Connect the relative earth
clamp to the piece to be
welded or nearby ensuring
that the area is free from
rust, paint, grease, ecc..
• When the machine is
switched off connect the
earth cable to the quick cou-
pling marked - (negative)
(pos. 1, fig. D).
• Connect the torch gas tube
to the connection (pos. 4,
fig. D).
• Insert the torch button con-
nector in the 6 poles holder
(pos. 2, fig. D).
PART TO BE WELDED
The part to be welded must
always be connected to earth
in order to reduce electromag-
netic emission. Much attention
must be afforded so that the
earth connection of the part to
be welded does not increase the risk of
accident to the user or the risk of dam-
age to other electric equipment.
When it is necessary to connect the part
to be welded to earth, you should make
a direct connection between the part
1
4
5
6
7
2
3
Fig. A
1
2
3
4
5
6
7
Fig. B
Fig. C
