Cebora bravo synergic mig 4540/T Manual De Instrucciones página 12

P- Setting knob.
When using any synergic program, the
SYNERGIC
knob indicator must be set to the label
6
5
4 7 SYNERGIC.
gram is selected, the display H shows
3 8
the set current.
2 9
This current corresponds to a given
1 10
speed. If you wish to correct this
speed, simply turn the knob clockwise
to increase or counter-clockwise to
decrease.
Changes in wire speed are always indicated on the dis-
play H by a current.
When the program 00 (manual) is in use, adjusts the wire
speed from 0 to 20 meters per minute.
The display H shows the meters per minute.
R - Selector switch
1
8 2
7
6 4
5
S - Selector switch
2 3
1
Q - Switch
Turns the machine on or off.
0
1
V
T - Quick-fitting socket.
This fitting must be connected to the red water
hose leaving the welding torch.
U - Quick-fitting socket.
This fitting must be connected to the blue water
hose leaving the welding torch.
12
When a synergic pro-
Fine-tunes the welding volt-
age within the range previ-
ously selected via selector
switch S.
3
Select the ranges of welding
voltage.
4
V- Earth sockets.
Sockets to which to connect the earth cable.
5 WELDING
5.1 Installation
Make sure that the wire diameter corresponds to the diam-
eter 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 aluminum
wires, and with a "V"-shaped groove for other wires.
5.2 THE MACHINE IS READY TO WELD
• Connect the earth clamp to the workpiece.
• Set the switch Q to 1.
• Remove the gas nozzle.
• Unscrew the contact tip.
• Insert the wire in the wire liner of the torch, making sure that
it is inside the roller groove and that the roller is in the correct
position.
• Press the torch trigger to move the wire forward until it
comes out of the torch.
• Caution: keep your face away from the gun tube
assembly while the wire is coming out.
• Screw the contact tip back on, making sure that the hole
diameter is the same as that of the wire used.
• Assemble the gas nozzle.
5.3 WELDING CARBON STEELS WITH GAS
PROTECTION.
In order to weld these materials you must:
• Use a welding gas with a binary composition, usually
ARGON + CO2 with percentages of Argon ranging from
75% up. With this blend, the welding bead will be well joint-
ed and attractive.
Using pure CO2 as a protection gas will produce narrow
beads, with greater penetration but a considerably increase
in splatters.
• Use a welding wire of the same quality as the steel to be
welded. It is best to always use good quality wires, avoiding
welding with rusted wires that could cause welding defects.
• Avoid welding rusted parts, or those with oil or grease
stains.
5.4 WELDING STAINLESS STEEL
Series 300 stainless steels must be welded using a protec-
tion gas with a high Argon content, containing a small per-
centage of O2 or carbon dioxide CO2 (approximately 2%) to
stabilize the arc.
Do not touch the wire with your hands. It is important to keep
the welding area clean at all times, to avoid contaminating
the joint to be welded.