Elettro MIG 2400 Manuel D'instructions page 8

• Do not use the welding machine without its cover or side
panels for obvious safety reasons, and to avoid altering the
cooling conditions for internal components.
• Connect a plug suitable for the absorbed current to the power
supply cable.
• Connect the yellow-green wire of the machine mains to an
efficient grounding socket.
2.3. EXTERNAL CONNECTIONS
2.3.1 Connecting the mass clip.
• Connect the earth cable terminal to the socket of the welding
machine, and connect the earth clamp to the workpiece.
2.3.2 Cylinder placement and connecting the gas hose
• Position the cylinder on the cylinder holder of the welding
machine, using the chains provided to fasten it to the top panel
of the machine.
• The gas cylinder must not be higher than 1,65 m (items
258-259-271) and 1 m (item 255), to avoid creating
hazardous conditions.
• Periodically check for wear on the chains, and order
replacements if necessary.
• The cylinder must be equipped with a pressure regulator
complete with flow gauge.
• Only after positioning the cylinder, connect the outgoing gas
hose from the rear panel of the machine to the pressure
regulator.
• Adjust the gas flow to approximately 10/12 litres/minute.
3. DESCRIPTION OF CONTROLS
3.1. CONTROLS ON THE FRONT PANEL (pict. 3)
A - Yellow LED.
Lights when the thermostat interrupts the welding machine
operation or (only for item 271) owing to a problem in the
cooling circuit.
B - Green LED.
Signals that the machine is on.
C - Selector switch.
Turns the machine on or off and selects the welding voltage
ranges.
D - Central adapter.
This is where the welding torch is to be connected.
E - Earth sockets.
Sockets to which to connect the earth cable. (Some versions
have a single earth socket).
F - Setting knob.
Turning this knob adjusts the spot welding time. The machine
begins welding when the torch trigger is pressed. The spot
welding time is set via the knob. To start the cycle over,
release and press the torch trigger again.
G -Setting knob.
Adjusting this knob changes the welding wire speed.
H - Selector switch.
Fine-tunes the welding voltage within the range previously
selected via selector switch C.
3.2. CONTROLS ON REAR PANEL OF ITEM 271 (pict. 4)
I - 230V power supply socket.
440 W max. power. For cooling unit only. (Warning: Do not
connect other equipment to this socket.).
L – Input supply socket
M - Socket.
For connection to the safety device on the cooling unit.
N.B. If no cooling unit is used with the machine, plug the
connector supplied with the machine into the socket M.
4. WELDING
4.1. INSTALLATION
Make sure that the wire diameter corresponds to the diameter
indicated on the wire feeder roller, and that the selected
program is compatible with the material and type of gas. Use
wire feeder rollers with a "U"-shaped groove for aluminium
wires, and with a "V"-shaped groove for other wires.
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