Operator`s manual
WIRING DIAGRAM
LN-25
F-2
F-2
530A
512
606
607
530
500
HI
LO
523B
522
VM
ARC
VOLTMETER
+
667
621
632
633
631
10K
R1
WIRE SPEED
CONTROL RHEOSTAT
W
N.B.
S2
S3
S1
TO
BLACK
POS
667
621
67
N.B.
NEG
A
B
C
D
E
622A
500A
J5
TRIGGER
CONNECTOR
7
J3
3
2
1
4
1
4
5
2
621
621
500A
667
622A
608
J2
J1
N.D.
3
6
1
4
10811
2
9
509
632
523B
522
633
523A
524
631
BLACK
BLUE
RED
524
523A
509
VV
CV
N.B.
WHITE
539
BLACK
541
BLACK
RED
BLUE
HALL
EFFECT
SWITCH
GUN CABLE
N.F.
N.G.
N.A.
N.B.
WIRE FEED
MODE SWITCH
POLARITY
SWITCH
WIRE SPEED DIAL
RANGE SWITCH
667
621
41 23
1
2
BLACK
WHITE
J16
15
9
16
13
12
10
14
8
11
1
6
5
3
2
4
13
539
14
541
7
12
5
BLACK
WHITE
OPTIONAL REMOTE
KIT PLUG
CONTROL
P.C. BOARD
G4679
WIRING DIAGRAM - LN-25 FOR CODE 11146
702
622A
621
500A
530A
530
624
606
622
607
512
4
3
700
2
701
1
500
J8
J13
1
2
3
4
5
6
7
8
9
10
11
12
A
B
C
D
E
F
75
76
77
75
76
77
R3
ARC VOLTS
REMOTE
P.C. BOARD
N.E.
N.F.
CONTACTOR CAN BE INSTALLED IN UNITS WITH AN L12253-1 CONTROL PC BOARD.
WHEN A CONTACTOR IS NOT USED, THE ’67’ LEAD TO THE POLARITY SWITCH COMES FROM THE CONDUCTOR
BLOCK AND THE INPUT CABLE CONNECTS DIRECTLY TO THE CONDUCTOR BLOCK.
N.G.
N.A.
N.B.
CONNECTIONS AS VIEWED FROM BACK OF RHEOSTAT AND SWITCHES.
N.D.
ITEM FACTORY INSTALLED ON SOME MODELS AND OPTIONAL EQUIPMENT ON SOME MODELS.
NOTES
UBR
OPTIONAL REMOTE OUTPUT CONTROL
***
500
555
512
J4
606
500
512
607
530A
530
J10
TIMER P.C.
BOARD
1
2
3
4
5
6
GAS
SOLENOID
VALVE
N.D.
PURGE
608
67
CONTACTOR
CONTACTOR
COIL
N.F.
N.D.,N.E.
INPUT
CABLE
J6
1
2
3
4
5
6
N.G.
530
530A
607
512
500
606
700
701
702
500
607
622
512
530A
624
500A
530
606
621
622A
622A
621
500A
530A
530
624
606
622
607
512
8
7
6
5
500
J8
J12
1
2
3
4
5
6
7
8
9
10
11
12
A
B
C
D
E
F
41
42
2
75
76
77
R3
ARC VOLTS
TO J3 ON
REMOTE
P.C. BOARD
TO TIMER P.C. BOARD
J6
1
2
3
4
5
6
N.G.
4
3
2
1
2
41
42
4
G
H
4
75
76
77
OPTIONAL 42 VOLT REMOTE OUTPUT CONTROL
75
76
77
OPTIONAL REMOTE VOLTAGE CONTROL
75
76
77
R3
ARC VOLTS
A
B
C
D
E
F
OPTIONAL TIMER KIT
SOLENOID P.C.
BOARD PLUG
PUSHBUTTON
S5
691
690
530B
500B
S4
COLD INCH
PUSHBUTTON
SWITCH
N.B., N.D.,
3
6
690
691
621
7
8
9
10
1
4
5
2
3
6
J14
1
2
3
4
5
6
530A
512
606
530
500
J11
N.F.
WORK CLIP
CONTROL BOARD
TO J3 ON
CONTROL BOARD
J14
1
2
J7
J7,J15 J1,J16
J2,J11
J15
J4
J3
1
1
1
1
1
1
2
34
2
5
6
10
8
9
16
7
8
14
3
46
ELECTRICAL SYMBOLS PER E1537
CONNECTORS VIEWED FROM INSERTION END
JUMPER PLUG MUST BE INSTALLED IF REMOTE KIT IS NOT PRESENT.
530C
500C
-ON UNITS WITH REMOTE PC BOARD, JUMPER MUST BE INSTALLED IN J6 OF REMOTE PC BOARD.
-ON UNITS WITHOUT REMOTE PC BOARD, JUMPER MUST BE INSTALLED IN J11.
IF TIMER KIT IS NOT INSTALLED:
A
B
C
D
E
J5
CW
N.H.
N.H. TIMER KIT HARNESS INSTALLATION:
- ON UNITS WITH REMOTE PC BOARD, TIMER HARNESS MUST PLUG INTO J6 OF REMOTE PC BOARD.
- ON UNITS WITHOUT REMOTE PC BOARD, TIMER HARNESS MUST PLUG INTO J11.
N.H.
N.H.
ESD SNUBBER
N.J.,N.K
S1
S1
S1
S5
S1
S5
S2
N.L.
N.L.
N.L.
N.J. PROVIDES AN ESD PATHWAY FROM EXPOSED METAL SURFACES TO WORK.
N.K. PRESENT ON EUROPEAN MODELS ONLY.
N.L. CONNECTS TO BUSHING OF COMPONENT.
622A
621
500A
530A
530
624
606
622
607
512
4
3
2
1
500
J8
J13
1
2
3
4
5
6
7
8
9
10
11
12
75
76
77
R3
ARC VOLTS
TO TIMER P.C. BOARD
34
33
4
21
REMOTE
P.C. BOARD
TO
POLARITY
SWITCH
4
33
34
21
75
76
77
667
621
A
B
C
D
E
F
G
H
I
6
6
7
6
2
1
OPTIONAL PULSE POWER ADAPTOR KIT
J6
1
2
3
4
56
N.G.
530
530A
607
512
500
606
TO J3 ON
CONTROL BOARD
N.H.
530
530A
607
512
500
606
B
OPTIONAL
TIMER PLUG
N.H
.
7
9
1
4
8
3
2
10
5
6
N.M.
N.M. J14 JUMPER PLUG USED ON K428 ONLY.
J14
NOTE: This diagram is for reference only. It may not be accurate for all machines covered by this manual. The specific diagram for a particular code is pasted inside the
machine on one of the enclosure panels. If the diagram is illegible, write to the Service Department for a replacement. Give the equipment code number.