Setting Up And Making A Flux-Cored Weld - Lincoln Electric POWER MIG 140 Manual Del Operador

POWER MIG 140 & 180 MODELS

SETTING uP ANd mAKING A FLux-COREd WELd

A. Items needed for flux cored welding
1. 035"(0.9mm) Contact Tip
2.Black Flux Cored gun nozzle
3. Knurled Drive Roll
4. .025"-.035"(0.6mm-0.9mm) wire guide
5. .035"(0.9mm) NR-211MP Flux-Cored Wire
6. Welding Gun
7. Work Cable & Clamp
1 2 3
.035
5
6
NR-211-MP
4
7
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
FIGURE B.7
positive (+) output terminal and tighten Wing Nut.
LOCATE COMPONENTS
TO CONNECT TO THE
FRONT OF MACHINE
THUMB SCREW TO
TIGHTEN CONNECTOR
BUSHING
B-5
OPERATION
SHORT POWER
CABLE NEGATIVE "–"
OUTPUT TERMINAL
WORK LEAD CONNECTION
POSITIVE "+" OUTPUT TERMINAL