Lincoln Electric 125 Manuel De L'opérateur page 15

WIRE FEEDER WELDERS (125, 140)
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 bush-
ing. Tighten thumb screw 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. NR-211 MP requires negative (-) polarity.
Connect the short power cable from the wire drive to the
negative (-) output terminal and tighten wing nut.
6. Work Lead Connection. Slide the lugged end of the work
cable through the hole in the machine front and route cable
through strain relief as shown in figure B.7. Place lug on the
positive (+) output terminal and tighten wing nut.
C. LOAD WIRE SPOOL
(See Figure B.8)
1. Locate the sample 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 by tightening the wing nut against the spacer
that holds the wire spool on the spindle. Do not over tighten
the spool.
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 Groove drive roll with the
.035"(0.9mm) mark facing outward which will allow feeding of
.035"(0.9mm) NR-211MP flux-cored wire.
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.
TIGHTEN THUMB SCREW TO
CONNECTOR BUSHING
SHORT POWER
CABLE NEGATIVE "-"
OUTPUT TERMINAL
FIGURE B.8
B 5
OPERATION
FIGURE B.7
ALL COMPONENTS SHOWN CONNECTED
(FRONT AND SIDE DOOR IS REMOVED FOR CLARITY)
STRAIN
RELIEF
WORK LEAD
CONNECTION
POSITIVE "+"
OUTPUT TERMINAL
PIVOT ARM ASSEMBL Y
BEARING
OUTGOING GUIDE
TENSION ARM ASSEMBL Y
WIRE SPOOL
.035" (0.9mm)
NR-211-MP
INCOMING GUIDE
DRIVE ROLL