© Lampert Werktechnik GmbH
2015
14
7.2 TIG-WELDING WITH FOOT SWITCH
With the PUK U4 switched off, connect the foot switch to
the socket (4) marked with the blue foot switch symbol on
the rear of the device. Switch the device on, confirm the
safety prompt by pressing an arbitrary button and wait for
the self-test to conclude. The device is now ready for
operation.
THE FOOT SWITCH CAN BE ACTIVATED BY PRESSING AND HOLDING IT (APPROX. 2 SEC.). A BLUE DOT
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 begin 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 BLUE DOT ON THE DISPLAY DISAPPEARS.
7.2.1. RESISTANCE WELDING
THE BLUE CONNECTION CABLE MAY ONLY BE CONNECTED AFTER THE MODE HAS BEEN ACTIVATED.
AFTER WELDING IS COMPLETE, IT IS VITAL THAT THIS CABLE IS REMOVED AGAIN, BEFORE SWITCHING
TO ANOTHER MODE, IN ORDER TO AVOID FAULTY WELDS!
Connect both of the workpieces which are to be fixed at
an area of bare metal with a connection terminal, one to
the blue one and the other to the black. When the two
parts are touching, the welding process can be triggered,
using the foot switch. The hand piece is not used during
this process.
The required welding power is determined by the
strength of the connection desired as well as the
workpiece geometry. The welding time setting is of
secondary importance in this mode, and can only be
varied to a very limited extent.
BEFORE SWITCHING TO ANOTHER USER LEVEL, PLEASE REMOVE THE BLUE CONNECTION CABLE
FROM PUK U4!
NOTE: DURING FIXATION WELDING, THE FOOT SWITCH IS ALWAYS ACTIVE, AND CANNOT BE DEACTIVATED!
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. use the hand rests of the
microscope USM. 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 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.
Summary of Contents for PUK U4
Page 1: ...Operating Manual PUK U4...