Lincoln Electric 125 Operator's Manual page 19

B-10
(See Figure B.16)
6. Feed the wire through the inlet liner, over the drive
roll groove, thru the outgoing guide and wire drive
outlet on the gun side.
7. Close the Pivot Arm Assembly and secure by piv-
oting the Tension Arm Assembly back to the up
position.
(See Figure B.17)
8. Remove the nozzle from the gun and contact tip
and straighten the gun out flat.
9. Turn the machine power to on and depress the
gun trigger to feed the wire through the gun liner
until the wire comes out of the threaded end of the
gun several inches. (See Figure B.18)
10. When trigger is released spool of wire should not
unwind. Adjust wire spool brake accordingly.
WARNING
MOVING PARTS AND ELECTRICAL
CONTACT CAN CAUSE INJURY OR BE
FATAL.
•When the gun trigger is depressed
drive rolls, spool of wire and electrode
are ELECTRICALLY LIVE (HOT).
• Keep away from moving parts and
pinch points.
• Keep all Doors, Covers, panels and
guards securely in place.
DO NOT REMOVE OR CONCEAL
WARNING LABELS.
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11. Install the .025 contact tip.
12. Install the brass gas MIG welding nozzle to the
gun.
13. Trim the wire stickout to 3/8 from the nozzle end.
(See Figure B.19)
14. Close the case side door. The machine is now
ready to weld.
15. Read "Learn to Weld" (LTW1) that is included with
the machine or watch the "How to Weld" DVD
included with the machine.
16. Based on the thickness of the material you are
going to weld and the type and diameter of the
welding wire set the voltage and the wire feed
speed per the procedure decal attached to the
inside of the wire drive compartment door.
OPERATION
WIRE FEEDER WELDERS (125, 140, 180 MODELS)
FIGURE B.16
PIVOT ARM ASSEMBLY
WITH BEARING PRESSING
AGAINST DRIVE ROLL
SLIDE WIRE
INTO GUN
CONNECTOR
SIDE
OUTGOING GUIDE
FIGURE B.17
REMOVED NOZZLE
REMOVED CONTACT TIP
LAY CABLE AND GUN STRAIGHTEN
IN THIS POSITION
FIGURE B.18
ON/OFF
SWITCH
FEED WIRE
APPROXIMATELY 4.00"
FROM THE GUN TUBE END
DEPRESS TRIGGER
TO ACTIVATE WIRE,
WHICH FEEDS THE WIRE
THRU THE LINER.
WORK CLAMP AND CABLE
FIGURE B.19
TRIM WIRE
STICKOUT
3/8"(9.5mm)
from the Brass Nozzle
B-10
TENSION ARM ASSEMBLY
LOCKED IN UP POSITION
DIRECTION
OF WIRE
BEARING
WIRE SPOOL
.025" (0.6mm)
LINER
DRIVE ROLL
WIRE SPOOL
.025" (0.6mm)
PLUG IN POWER
INPUT CORD
WIRE SPOOL
.025" (0.6mm)
ROTATION
INSTALL .025 CONTACT TIP
INSTALL BRASS NOZZLE