Lincoln Electric IMt10143 MARQUETTE AutoPro 140_180 - Manual (Page 14)

B-5 OPERATION B-5
AUTOPRO™ (140/180 MODELS)
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. 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. 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 spin-
dle. Do not over tighten the spool.
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 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.
WORK CLAMP
(4 PIN)
TRIGGER RECEPTACLE
PLUGGED IN
ALL COMPONENTS SHOWN CONNECTED
(FRONT AND SIDE DOOR IS REMOVED FOR CLARITY)
SHORT POWER
CABLE NEGATIVE "-"
OUTPUT TERMINAL
WORK LEAD
CONNECTION
POSITIVE "+"
OUTPUT TERMINAL
TIGHTEN THUMB SCREW TO
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.7
WIRE SPOOL
.035" (0.9mm)
NR-211-MP
DRIVE ROLL
PIVOT ARM ASSEMBLY
TENSION ARM ASSEMBLY
OUTGOING GUIDE
BEARING
INCOMING GUIDE
FIGURE B.8