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User Manual
Version 1.0k of 11.06.2019
Original manual
PONTIG 202 AC/DC MOST
-20-
10. MMA coated electrode welding
Connect the device to the 230 V mains cable (9, see fig. 1). Connection of wires to
the MMA electrode welding
- Connect the ground wire plug to the (
8
) (-) socket on the device
- Connect the plug of the electrode holder to socket (
5
) (+) on the device.
ATTENTION:
Some coated electrodes require reverse polarity - see instructions
on the electrode pack. Switch on the device with the ON / OFF switch (
12
).
Starting the welding mode with the electrode is carried out by pressing the button (
5
) -
the indicator (11, see fig. 2) lights up.
ATTENTION:
Avoid accidentally touching the end of the electrode with the material, as
the welding current is still present in the cables.
After switching the device on (ON), set the proper welding current for the given
electrode diameter with the knob (
4
) (see instructions on the electrode pack). The
value of the welding current is shown in the panel display (
1
) (the indicator (
21
) is
continuously lit).
The electric arc is initiated by rubbing the end of the electrode with the base material
(connected
with the device by earth cable), and after the arc occurs, it is necessary to quickly move the
electrode tip for the right distance.
If the end of the electrode is removed too quickly, the arc will be torn off and alternatively,
moving too slow can result in creating short circuit and sticking the end of the electrode to the
material.
Figure 15: Changing of current and voltage during welding