Positive output terminal (+)
A9 – Switch.
Turns the machine on and off.
B1 – Gas intake fitting.
B2 – Power supply cable.
B3 – Connector
(only for item 165)
Three-pin connector to which to connect the wire of the cooling
unit pressure switch.
B4 – Fuse holder
(only for item 165)
B5 – Socket
(only for item 165)
To which to connect the cooling unit.
Caution
: Max. power: 360VA - Amps: 1.6. Do not connect tools
such as polishers or similar.
3.3. GENERAL NOTES
Before using this welding machine, carefully read the standards
CEI 26/9 - CENELEC HD 407 and CEI 26.11 - CENELEC HD
433. Also make sure the insulation of the cables, electrode
clamps, sockets and plugs are intact, and that the size and
length of the welding cables are compatible with the current
used.
3.4. MMA WELDING (MANUAL METAL ARC)
- This welding machine is suitable for welding all types of
electrodes, with the exception of cellulosic (AWS 6010)*.
- Make sure that the switch
A9
is in position O, then connect
the welding cables, observing the polarity required by the
manufacturer of the electrodes you will be using; also connect
the clamp of the ground cable to the workpiece, as close to the
weld as possible, making sure that there is good electrical
contact.
- Do NOT touch the torch or electrode clamp simultaneously
with the earth clamp.
-Turn the machine on using the switch
A9
.
- Select the MMA procedure by pressing the button
C
: LED
A
lit.
- In MMA procedure the cooling fan is always on.
- Adjust the current based on the diameter of the electrode, the
welding position and the type of joint to be made.
- Always remember to shut off the machine and remove the
electrode from the clamp after welding.
3.5. TIG WELDING
This welding machine is suitable for welding stainless steel,
iron, or copper using the TIG procedure in DC mode and
aluminium, brass and magnesium using the TIG procedure
in AC mode.
Connect the earth cable connector to the positive pole (+) of
the welding machine, and the clamp to the workpiece as
close as possible to the welding point, making sure there is
good electrical contact.
Connect the power connector of the TIG torch to the
negative pole (-) of the welding machine.
Connect the torch connector to the welding machine
connector
A7
.
Connect the torch gas hose fitting to the fitting
P
on the
machine, and the gas hose from the cylinder pressure
regulator to the gas fitting
B1
on the rear panel.
Only for item 165
- If using a water-cooled torch, use the
cooling unit. After having filled the tank with coolant,
connect the plug of the mains cable to the socket
B5
of the
welding machine, then connect the 3-pin male patch
connector to the connector
B3
. Turn on the cooling unit by
means of the apposite switch (see par. 3.5.1).
Turn on the machine by means of the switch A9.
Do not touch live parts and output terminals while the
machine is powered.
The first time the machine is turned on, select the mode
using the push-buttons
C, X
and
A3
and the welding
parameters by means of the key
G
and the knob
R
as
described in paragraph 3.2.
In TIG procedure the cooling fan starts working, after 5
seconds it stops for starting again to work during welding
process till the machine is cooled.
The flow of inert gas must be set to a value (in litres per
minute) approximately 6 times the diameter of the
electrode.
If you are using gas-lens type accessories, the gas
throughput may be reduced to approximately 3 times the
diameter of the electrode. The diameter of the ceramic
nozzle must be 4 to 6 times the diameter of the electrode.
The most commonly used gas is normally ARGON,
because it is less costly than other inert gases, but you may
also use blends of ARGON with a maximum of 2%
HYDROGEN for welding stainless steel, and HELIUM or
ARGON-HELIUM blends for welding copper.
These blends increase the heat of the arc while welding, but
are much more expensive.
If you are using HELIUM gas, increase the litters per minute
to 10 times the diameter of the electrode (Ex. diameter 1.6 x
10= 16 It./min of Helium).
Use D.I.N. 10 protective glasses for up to 75A, and D.I.N.
11 from 75A up.
3.5.1 Cooling unit (optional item 560010).
When using a water-cooled torch, use the cooling unit.
To select the cooling unit working mode, proceed as
follows:
1. Select any TIG procedure.
2. Press the key
Y
and while holding it down, press the
key
G
. Hold both keys down until the display
T
reads
H2O.
3. Select the working mode with the knob
R.
1 = Unit off,
2 = Continuous operation,
3 = Automatic operation.
To exit the selection menu briefly press Y.
N.B. "Automatic operation" means that the cooling unit is
started when the torch button is pressed and stopped after
approximately 2 minutes from releasing the torch button.
Caution!
If electrode welding is selected, cooling is not
active and cannot be selected. Upon machine power-on,
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