Tweco 400i Transmig - Manual (Page 31)

TRANSMIG 400 i
July 18, 2008 4-9
4.08 Set-up for GMAW/FCAW (MIG)
MIG welding with the Transmig 400 i requires the integration of a constant voltage (CV) wire feeder. Shielding
gas will also usually be required in most cases except for some flux cored welding operations (FCAW). When
setting up for flux cored welding, contact the welding wire manufacturer for lead polarity recommendations.
Refer to Figure 4-5 for a typical MIG welding configuration and connect your equipment accordingly.
NOTE
Consult the wire feeder manual on how to adjust the wire feed speed and connect the MIG gun.
!
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.
14-Pin Control Cable
Constant Speed
Wire Feeder
MIG Gun
Electrode Lead *
Gas
Work Lead * Workpiece
Transmig 400 i
* These leads may need to be reversed when using flux core welding wire.
Contact the welding wire manufacturer for details.
Figure 4-5: Transmig 400 i GMAW (MIG) Set-up