Tweco ArcMaster 401MST - Manual (Page 50)

ARCMASTER 401MST POWER SOURCE
INSTALLATION, OPERATION AND SETUP 3-20 Manual 0-5287
3.13 Setup for FCAW Flux Core Arc Welding
A wire feeder (optional) is required for MIG welding.
NOTE
NOTE 1: The operations required may differ depending on the version and the configuration of the
wirefeeder!
NOTE 2: Please read the wire feed operating manual!
Power Source Connections
A. Remove all packaging materials. Do not block the air vents at the front or rear of the Power Source.
B. Connect the work lead to the positive welding terminal (+). If in doubt, consult the electrode wire manufacturer.
Welding current flows from the Power Source via dinse type connectors. It is essential, however, that the male
plug is inserted and turned securely to achieve a sound electrical connection.
CAUTION
Loose welding terminal connections can cause overheating and result in the male plug being fused in
the terminal.
!
WARNING
Before connecting the work clamp to the work piece make sure the mains power supply is switched off.
C. Select MIG mode by pressing Process Selection Button until MIG/ CO
2
symbol lights up (Please refer to Page
3-8 for detailed info).