© Lampert Werktechnik GmbH
2017
10
7. WELDING INSTRUCTIONS
NOTE!
PRIOR
TO
WELDING,
ALWAYS
CHECK
THE
FUNCTION OF THE EYE PROTECTION FILTER AS
DESCRIBED IN CHAPTER 5.5 "FILTER TEST". IF THE
EYE PROTECTION FILTER (SHUTTER) FAILS TO
SWITCH OVER FROM LIGHT TO DARK, THEN IT
MUST
BE
IMMEDIATELY
EXCHANGED
BY
SPECIALIST PERSONNEL
.
7.1 WELDING INSTRUCTIONS
•
First connect a metallic blank section of the workpiece
with the contact clamp.
•
Lightly touch the area to be welded with the tip of the
electrode until welding begins. In doing so, it is important
to remain in the position where initial contact is made
until welding begins, i.e. neither to follow the electrode
with the workpiece when it retracts slightly in the
handpiece, nor to pull back.
APPLY EXTREMELY LIGHT PRESSURE OR NO PRESSURE TO THE TIP OF THE ELECTRODE!
The welding process proceeds automatically:
•
shielding gas flows around the welding point.
•
A signal tone announces the arc.
•
The arc triggers and the electrode retracts
slightly in
the handpiece.
•
The shielding gas supply cuts off.
THE WELDING PROCESS CAN BE HALTED AT ANY TIME BY MEANS OF LIFTING THE ELECTRODE AWAY
FROM THE WORKPIECE.
7.2 WELDING WITH FOOT SWITCH
(optional accessory)
With the „M280“ switched off, connect the foot switch to the
socket (4) on the rear of the device. Switch the device on,
wait for the self-test to conclude and confirm the safety
prompt by pressing any button. The device is now ready for
operation.
THE FOOT SWITCH CAN BE ACTIVATED BY PRESSING AND HOLDING IT (APPROX. 2 SEC.). A WHITE SYMBOL
APPEARS IN THE DISPLAY.
Connect a metallic blank
section of the workpiece with
the contact clamp. Now
lightly touch the workpiece with the electrode, so that the
shielding gas flows out. If the foot switch is operated in this
mode, the welding process will start automatically as
described in chapter 7.1.
PRESSING AND HOLDING THE FOOT SWITCH (APPROX. 2 SEC.) (WITHOUT TOUCHING A WORKPIECE) CAUSES IT
TO BE DEACTIVATED AND THE WHITE SYMBOL ON THE DISPLAY DISAPPEARS.
7.3 BASICS AND TIPS
IMPORTANT!
•
Always work with a well sharpened electrode (see point
7.4 for information about sharpening the electrodes).
•
Ensure extremely good contact between the workpiece
and the contact clamp, i.e. make contact between the
workpiece and the connection cable terminal at a point
which is metallically blank.
•
Never weld "free hand", i.e. put your hands comfortably
on the work bench. Shaking hands can cause the
configured parameters to be falsified.
•
Apply only light force to the electrode tip.
•
Weld with the correct gas flow of 2 - 3 litres/minute and
check this regularly.
•
With a little experience you will notice that the angle with
which you touch the workpiece with tip of the electrode
affects the "direction of flow" of the welding point.
•
The electrode can easily be clamped in somewhat
longer for welding recessed areas.
•
In many cases it is helpful to work with welding wire as a
welding supplement, but never with solder.
