Lincoln Electric POWER MIG 180 DUAL Operation Manual page 13

B-5
B. CONNECT LEADS AND CABLES ON
THE MACHINE
(See Figure B.7)
1. Open the case side door
2. Slide the connector end of the gun and cable
through the hole in the machine front and into the
gun connector bushing on the wire drive.
3. Make sure the gun connector end is seated fully
into the wire drive and tighten the thumbscrew to
secure the gun connector.
4. Plug the gun trigger lead connector into the 4 pin
gun trigger receptacle on the machine front.
5. Wire Drive Polarity. Flux cored welding requires
negative (-) polarity. Connect the short power
cable from the wire drive to the negative (-) output
terminal and tighten the Wing Nut.
6. Work Lead Connection. Slide the lugged end of
the work cable through the hole in the machine
front and place on the positive (+) output terminal
and tighten Wing Nut.
C. LOAD WIRE SPOOL
(See Figure B.8)
1. Locate the 4"(102mm) diameter spool of
.035"(0.9mm) NR-211MP flux-cored wire and
place onto wire spool spindle. Orient the spool so
that the wire feeds off the top of the spool.
2. Secure spool in place by tightening the wing nut
against the against the spacer that holds the wire
spool on the spindle.
3. Open the top drive roll pressure arm by rotating
the tension adjustor arm down and pivoting the
drive roll pressure arm up.
4. Remove the outer wire guide.
4a. Slide gun out of drive slightly.
5. Remove the lower drive roll and inner wire guide.
6. Install the .025"-.035"(0.6mm-0.9mm) inner wire guide.
7. Install the .030"/.045"(0.8mm/1.1mm) knurled lower drive
roll.
8. Carefully unwind and straighten the first six inches of
welding wire from the spool. Do not let the end of the
wire go to prevent the wire from unspooling.
OPERATION
LOCATE COMPONENTS
TO CONNECT TO THE
FRONT OF MACHINE
POWER MIG® 180 DUAL
FIGURE B.7
ALL COMPONENTS SHOWN CONNECTED
(FRONT AND SIDE DOOR IS REMOVED
FOR CLARITY)
THUMB SCREW TO
TIGHTEN CONNECTOR
BUSHING
FIGURE B.8
TOP DRIVE ROLL PRESSURE ARM
TENSION ADJUSTOR DOWN
WIRE SPOOL
.035" (0.9mm)
NR-211-MP
INNER WIRE GUIDE REMOVED
LOWER DRIVE ROLL REMOVED
B-5
SHORT POWER
CABLE NEGATIVE "-"
OUTPUT TERMINAL
WORK LEAD
CONNECTION
POSITIVE "+"
OUTPUT TERMINAL
OUTER WIRE
GUIDE REMOVED