Tweco Fabricator 141i Operating Manual - Manual (Page 51)

Fabricator 141i
Manual 0-51 45 3-21 INSTALLATION, OPERATION AND SETUP
3.19 Setup for MIG (GMAW) Welding with Gas Shielded MIG Wire
A. Select MIG mode with the process selection control. (Refer to Section 3.10 for further information)
B. Connect the MIG Gun Polarity Lead to the positive welding terminal (+). If in doubt, consult the electrode wire
manufacturer. Welding current flows from the Power Source via Dinse style connectors. It is essential, however,
that the male plug is inserted and turned securely to achieve a sound electrical connection.
C. Fit the MIG Gun to the Power Source. (Refer to Section 3.11 Attaching the Fusion 140A MIG Gun).
D. Connect the work lead to the negative welding terminal (-). If in doubt, consult the electrode wire manufacturer.
Welding current flows from the Power Source via Dinse style connectors. It is essential, however, that the
male plug is inserted and turned securely to achieve a sound electrical connection.
E. Fit the flowmeter/ regulator to the shielding gas cylinder (Refer to Section 3.06) then connect the shielding gas
hose from the rear of the Power Source to the flowmeter/ regulator outlet.
F. Refer to the Weld Guide located on the inside of the wirefeed compartment door for further information.
G. Switch the LOCAL/REMOTE switch inside the
wire feed compartment to LOCAL to use the
Power Sources Wirespeed and Voltage controls.
H. Switch the MIG GUN/SPOOL GUN switch inside
the wire feed compartment to MIG GUN.
!
WARNING
Before connecting the work clamp to the work piece, make sure you have ceased feeding wire so
premature arcing will not occur.
Secure the shielding gas cylinder in an upright position by chaining it to a suitable stationary support
to prevent falling or tipping.
CAUTION
Loose welding terminal connections can cause overheating and result in the male plug being fused in
the terminal.