Lincoln Electric 280C Pro Operator's Manual page 10

knob [7]. The chart below can be useful for welding
setting selection:
• Obeying the appropriate rules, you can begin to
weld.
Welding with MIG / MAG method in
Synergic (automatic) mode
To begin welding process with MIG/MAG method in
synergic mode you should:
•
Insert the plug of input supply cable into the main
socket.
• Switch ON the machine with the "Power Switch" [1]
(it should light on).
•
Insert the electrode wire into the torch using "Cold
Inch" switch [5].
• Check gas flow with "Gas Purge" switch [5].
•
Set the knob of the choice wire diameter selection
[16] in the position corresponding to the diameter of
the used wire.
• Set the knob of the choice welded material and gas
mixture [17] in the position corresponding to the
used material.
If the selected welding process does not have
synergic mode, three horizontal dashes will appear
on the display "A".
•
According to the selected welding mode and
material thickness, set the proper welding voltage
through the "Welding Voltage Changing Switches"
[3].
For synergic welding
automatically select the proper wire feeding speed
for each position of the "Welding Voltage Changing
Switches" [3]. The automatic speed value can be
adjusted in the range of the ±25% by the WFS
Control Knob [7].
•
Obeying the appropriate rules, you can begin to
weld.
Changing Driving Rolls
The machine is equipped with drive rolls for the wire of
1.0 and 1.2mm (factory default). For others wire sizes,
is available the proper drive rolls kit (see chapter
Accessories for ordering the desired kit). Below is the
drive rolls replacement procedure:
•
Switch off the machine.
•
Release the pressure roll lever [32].
•
Unscrew the fastening cap [33].
• Open the protection cover [34].
WARNING
WARNING
mode the machine
•
Change the drive rolls [35] with the compatible ones
corresponding to the used wire.
For wires with the diameter greater than 1.6mm, the
following parts are to be changed:
• The guide tube of the feeding console [36] and
[37].
•
The guide tube of the Euro socket [38].
• Replace and tighten the protection cover [34] to the
drive rolls.
•
Screw the protection cover by fastening screws [33].
Maintenance
For any maintenance or repair operations it is
recommended to contact the nearest technical service
center or Lincoln Electric.
performed by unauthorized service centers or personnel
will null and void the manufacturers warranty.
The frequency of the maintenance operations may vary
in accordance with the working environment where the
machine is placed.
Any noticeable damage should be reported immediately.
Routine maintenance (everyday)
•
Check cables and connections integrity. Replace, if
necessary.
•
Remove the spatters from the welding gun nozzle.
Spatters could interfere with the shielding gas flow
to the arc.
• Check the welding gun condition: replace it, if
necessary.
•
Check condition and operation of the cooling fan.
Keep clean its airflow slots.
Periodic maintenance (every 200 working hours
but not more rarely than once a year)
Perform the routine maintenance and, in addition:
•
Keep clean the machine. Using a dry ( and low
pressure) airflow, remove the dust from the external
case and from inside of the cabinet.
• Check and tighten all screws.
A-6
WARNING
WARNING
Maintenance or repairs