Lincoln Electric 125 Operator's Manual page 19

WIRE FEEDER WELDERS (125, 140)
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. Tighten thumbscrew to connector bushing.
3. Make sure the gun connector end is seated fully into the wire
drive.
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 posi-
tive (+) output terminal and tighten wingnut.
6. Work Lead Connection. Slide the lugged end of the work
cable through the hole in the machine front and route cable
through the strain relief as shown in figure B.14. Place lug on
the negative (-) output terminal and tighten wing nut.
D. LOAD WIRE SPOOL
(See Figure B.15)
1. Locate the sample spool of .025"(0.6mm) L-56 solid MIG 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
spacer that holds the wire spool on the spindle.
3. Open the pivot arm assembly by rotating the tension arm
assembly down and lift pivot arm assembly up.
4. Remove drive roll by un-screwing the black knob that holds the
drive roll on. Install the Dual Track drive roll with the
.025"(0.6mm) mark facing outward which will allow feeding of
.025"(0.6mm) L-56 Solid MIG wire.
5. Carefully unwind and straighten the first six inches of welding
wire from the spool. Hold onto the wire until the the Pivot Arm
assembly and Tension Arm are locked in place. This will pre-
vent the wire from unspooling.
FIGURE B.14
LOCATE COMPONENTS
TO CONNECT TO THE
FRONT OF MACHINE
GAS LINE
TIGHTEN THUMB SCREW TO
CONNECTOR BUSHING
SHORT POWER
CABLE POSITIVE "+"
OUTPUT TERMINAL
FIGURE B.15
PIVOT ARM ASSEMBL Y
BEARING
B 9
OPERATION
ALL COMPONENTS SHOWN CONNECTED
(FRONT AND SIDE DOOR IS REMOVED
FOR CLARITY)
STRAIN
RELIEF
WORK LEAD
CONNECTION
NEGATIVE "-"
OUTPUT TERMINAL
OUTGOING GUIDE
TENSION ARM ASSEMBL Y
WIRE SPOOL
.025" (0.6mm)
L-56 SOLID
MIG WIRE
INCOMING GUIDE
DRIVE ROLL