Tweco 175i Transtig - Manual (Page 23)

TRANSMIG 175i
Manual 0-5143 3-5 INSTALLATION, OPERATION AND SETUP
6. Positive Welding Output Terminal
The positive welding terminal is used to connect the welding output of the power source to the appropriate
welding accessory such as the MIG torch (via the MIG torch polarity lead), electrode holder lead or work
lead. Positive welding current flows from the power source via this heavy duty bayonet type terminal.
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 bayonet terminal.
7. MIG Torch Polarity Lead
The polarity lead is used to connect the MIG torch to the appropriate positive or negative output terminal
(allowing polarity reversal for different welding applications). In general, the polarity lead should be
connected in to the positive welding terminal (+) when using steel, stainless steel or aluminium electrode
wire. When using gasless wire, the polarity lead is generally connected to the negative welding terminal (-).
If in doubt, consult the manufacturer of the electrode wire for the correct polarity. 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 bayonet terminal.
8. Negative Welding Output Terminal
The negative welding terminal is used to connect the welding output of the power source to the appropriate
welding accessory such as the MIG torch (via the MIG torch polarity lead), TIG torch or work lead. Negative
welding current flows to the power source via this heavy duty bayonet type terminal. 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 bayonet terminal.