16
Setup Guide and Component Identification
Section 2
CONNECTIONS AND POLARITY
STOP!
Read the information on this page and the
following pages carefully. It contains im-
portant information on correct polarity of
your torches and guns for all processes.
CAUTION!
Pay attention to the separate DC and AC TIG con-
nections. Failure to do so can result in poor opera-
tion of the welder, and even damage if the unit is im-
properly connected. The AC connector is designed
for use in TIG mode only and serves as the work
clamp connection in AC mode. (Stick mode does not
provide AC output.) Even if you switch the machine
to AC, you will still need to move the work clamp ca-
ble to the AC output terminal connector. The TIG
torch will always remain in the negative (
-
) connect-
or. Remember to switch back to the positive (+)
connector when reverting to DC TIG operation.
Remember!
Remove TIG and Stick torches and controls while MIG welding.
These connections remain live and can cause the torch to short out
against any metal it is in contact with. The MIG gun may remain con-
nected while welding TIG or stick but the nozzle must be insulated
from contact. A small rubber hose or non
-
conductive tubing may be
slid over the tip of the gun to protect it if needed. Do not attempt to
weld with the work clamp in the AC port. Check before welding.
