Tweco 400i Transmig - Manual (Page 30)

TRANSMIG 400 i
4-8 July 18, 2008
4.07 Set-up for MMAW (STICK) and
GTAW (TIG)
Conventional operating procedures apply when using
the welding power source, i.e. connect work lead
directly to work piece and electrode lead is used to
hold electrode. Wide safety margins provided by the
coil design ensure that the welding power source will
withstand short-term overload without adverse
effects. The welding current range values should be
used as a guide only. Current delivered to the arc is
dependent on the welding arc voltage, and as welding
arc voltage varies between different classes of
electrodes, welding current at any one setting would
vary according to the type of electrode in use. The
operator should use the welding current range values
as a guide, then finally adjust the current setting to
suit the application.
!
WARNING
Before connecting the work clamp to the
work and inserting the electrode in the
electrode holder make sure the primary
power supply is switched off.
CAUTION
Remove any packaging material prior to
use. Do not block the air vents at the front
or rear or sides of the welding power
source.
Art # A-08545
Figure 4-4: Transmig 400 i MMAW/GTAW Set-up