Miller Electric OM-4409 - Manual (Page 32)

OM-4409 Page 28
5-8. Connecting To Weld Output Terminals
803 231 / 803 778-A
Tools Needed:
3/4 in
MIG And FCAW Welding
For MIG welding Direct Current Electrode
Positive (DCEP), connect wire feeder
cable to Positive (+) terminal on left and
work cable to Negative (−) terminal on
right. Use Process/Contactor switch to
select type of weld output (see Section
6-3).
For MIG and FCAW Direct Current Elec-
trode Negative (DCEN), connect wire
feeder cable to Negative (−) terminal on
right and work cable to Positive (+) termi-
nal on left. Use Process/Contactor switch
to select type of weld output (see Section
6-3).
If equipped with optional Polarity/AC Se-
lector switch, connect wire feeder cable to
Electrode terminal on left and work cable
to Work terminal on right.
2
1
Stick And TIG Welding
For Stick welding Direct Current Electrode
Positive (DCEP), connect electrode hold-
er cable to Positive (+) terminal on left and
work cable to Negative (−) terminal on
right.
For Stick and TIG Direct Current Elec-
trode Negative (DCEN), connect elec-
trode holder cable to Negative (−) terminal
on right and work cable to Positive (+) ter-
minal on left.
If equipped with optional Polarity/AC Se-
lector switch, connect electrode holder
cable to Electrode terminal on left and
work cable to Work terminal on right.
6
4
5
Do not place
anything between
Correct Installation Incorrect Installation
3
weld cable terminal
and copper bar.
! Stop engine.
1 Positive (+) Weld Output Terminal
2 Negative (−) Weld Output Terminal
! Failure to properly connect weld
cables may cause excessive heat and
start a fire, or damage your machine.
3 Weld Output Terminal
4 Supplied Weld Output Terminal Nut
5 Weld Cable Terminal
6 Copper Bar
Remove supplied nut from weld output termi-
nal. Slide weld cable terminal onto weld output
terminal and secure with nut so that weld cable
terminal is tight against copper bar. Do not
place anything between weld cable termi-
nal and copper bar. Make sure that the sur-
faces of the weld cable terminal and cop-
per bar are clean.