Lincoln Electric IMT891 WIRE FEEDER WELDER 125, 140, 180 - Manual (Page 18)

b-9 OPERATION b-9
WIRE FEEDER WELDERS (125, 140, 180 MODELS)
C. CONNECT LEADS AND CAbLES ON
ThE MAChINE
(See Figure B.14)
1. Open the case side door.
2. Slide the connector end of the gun and cable
through the hole of 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.
4. Plug the gun trigger lead connector into the 4 pin
gun trigger receptacle on the machine front.
5. Wire Drive Polarity. MIG welding requires Positive
(+) polarity. Connect the short power cable from
the wire drive to the positive (+) output terminal and
tighten the thumbscrew.
6. Work Lead Connection. Slide the lugged end of the
work cable through the hole in the machine front
and place on the negative (-) output terminal and
tighten thumbscrew.
D. LOAD WIRE SPOOL
(See Figure B.15)
1. Locate the green labeled 4" diameter spool of .025
L-56 solid MIG wire and place onto wire spool spin-
dle. 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 pivot arm assembly by rotating the ten-
sion arm assembly down and lift pivot arm assem-
bly up.
4. Remove drive roll by turning the twist lock that holds
the drive roll on. Install the .025-.035 smooth
grooved drive roll.
5. 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.
CASE SIDE DOOR
SHORT POWER
CABLE POSITIVE "+"
OUTPUT TERMINAL
WORK LEAD
CONNECTION
NEGATIVE "-"
OUTPUT TERMINAL
LOCATE COMPONENTS
TO CONNECT TO THE
FRONT OF MACHINE
WORK CLAMP
(4 PIN)
TRIGGER RECEPTACLE
PLUGGED IN
CONNECTOR
END ATTACH
ALL COMPONENTS SHOWN CONNECTED
(FRONT AND SIDE DOOR IS REMOVED
FOR CLARITY)
MOLDED HAND SCREW TO
TIGHTEN CONNECTOR
BUSHING
GUN AND CABLE
WORK CLAMP
(4 PIN)
LEAD CONNECTOR
TERMINAL END
(FITS ON STUD INSIDE
SEE FIGURE BELOW)
SLIDE
CONNECTOR
END HERE OPEN LATCH DOOR
FIGuRE b.15
FIGuRE b.14
PIVOT ARM ASSEMBLY
TENSION ARM ASSEMBLY DOWN
LINER
TWIST LOCK
DRIVE ROLL
OUTGOING GUIDE
BEARING
WIRE SPOOL
.025" (0.6mm)
L-5
6 SOLID M
IG