Lincoln Electric BesterMig 200-S Operator's Manual page 12

The installation and connection
Figure 4
WARNING
Positive (+) polarity is set at the factory.
If the welding polarity has to be changed, user should:

Switch off the machine.

Determine the polarity for the electrode to be used (or
wire). Consult the data for this information.

Select and set the correct polarity.
WARNING
Before welding check the polarity for using electrodes and
wires.
WARNING
The machine must be used with the door completely
closed during welding.
WARNING
Not use handle to move the machine during work.
Loading the Electrode Wire

Turn the machine off.

Open the side cover of the machine.

Unscrew the locking nut of the sleeve.

Load the spool with the wire on the sleeve such that
the spool turns anticlockwise when the wire is fed into
the wire feeder.

Make sure that the spool locating pin goes into the
fitting hole on the spool.

Screw in the fastening cap of the sleeve.

Put on the wire roll using the correct groove
corresponding to the wire diameter.

Free the end of the wire and cut off the bent end
making sure it has no burr.

The device is adapted to the spool max. 200mm.
WARNING
Sharp end of the wire can hurt.

Rotate the wire spool anticlockwise and thread the
end of the wire into the wire feeder as far as the Euro
socket.

Adjust force of pressure roll of the wire feeder
properly.
English
Adjustments of Brake Torque of Sleeve
To avoid spontaneous unrolling of the welding wire the
sleeve is fitted with a brake.
Adjustment is carried by rotation of its Allen screw M8,
which is placed inside of the sleeve frame after
unscrewing the fastening cap of the sleeve.
1. Fastening cap.
2. Adjusting Allen screw M8.
3. Pressing spring.
Turning the Allen screw M8 clockwise increases the
spring tension and you can increase the brake torque
Turning the Allen screw M8 anticlockwise decreases the
spring tension and you can decrease the brake torque.
After finishing of adjustment, you should screw in the
fastening cap again.
Inserting Electrode Wire into Welding
Torch

Turn the welding machine off.

Depending on welding process, connect the proper
gun to the euro socket, the rated parameters of the
gun and of the welding machine should be matched.

Remote the nozzle from the gun and contact tip or
protection cap and contact tip. Next, straighten the gun
out flat.

Turn the welding machine on.

Depress the gun trigger to feed the wire through the
gun liner until the wire comes out of the threaded end.

When trigger is released spool of wire should not
unwind.

Adjust wire spool brake accordingly.

Turn the welding machine off.

Install a proper contact tip.

Depending on the welding process and the type of the
gun, install the nozzle (GMAW process) or protection
cap (FCAW-SS process).
Take precaution to keep eyes and hands away from the
end of the gun while the wire is being come out of the
threated end.
10
Figure 5
WARNING
English