Weld Output Terminals; Connecting To Weld Output Terminals - Miller Big Blue 400 Pro Owner's Manual

5-9. Weld Output Terminals

!
Turn off power before connecting to
weld output terminals.
!
Do not use worn, damaged, under-
sized, or repaired cables.
1 Negative (−) Weld Output Terminal
2 Positive (+) Weld Output Terminal
5-10.

Connecting To Weld Output Terminals

Tools Needed:
3/4 in.
6
3
4
5
OM-278215 Page 28
.
Complete Parts List is available at www.MillerWelds.com
1
For Stick and TIG welding Direct Current
Electrode Positive (DCEP), connect elec-
trode holder cable to Positive (+) terminal
on right and work cable to Negative (−) ter-
minal on left.
1 2
2
For Direct Current Electrode Negative
(DCEN), reverse cable connections.
Use Process/Contactor switch to select
type of weld output (see Section 6-3).
!
Stop engine.
!
Failure to properly connect weld
cables may cause excessive heat
and start a fire, or damage your ma-
chine.
.
Do not place anything between weld
cable terminal and copper bar. Make
sure that the surfaces of the weld
cable terminal and copper bar are
clean.
1 Correct Weld Cable Connection
2 Incorrect Weld Cable Connection
3 Weld Output Terminal
4 Supplied Weld Output Terminal Nut
5 Weld Cable Terminal
6 Copper Bar
Remove supplied nut from weld output
terminal. Slide weld cable terminal onto
weld output terminal and secure with nut
so that weld cable terminal is tight against
copper bar.
Ref: 263 480-A
803 778-B