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LN-7 and LN-7 GMA Wire Feeders
(2 and 4 Roll Models)
OPERATOR’S MANUAL
Safety Depends on You
Lincoln arc welding and cutting
equipment is designed and built
with safety in mind. However, your
overall safety can be increased by
proper installation ... and thought-
ful operation on your part. DO
NOT INSTALL, OPERATE OR
REPAIR THIS EQUIPMENT
WITHOUT READING THIS
MANUAL AND THE SAFETY
PRECAUTIONS CONTAINED
THROUGHOUT. And, most
importantly, think before you act
and be careful.
IM351-C
June, 2010
VOLTS
NEGATIVE
ELECTRODE
POLARITY
POSITIV
E
THE LINCOLN ELECTRIC CO.
CLEVELAND, OH U.S.A.
D
o n
ot
t
ou
c
h
l
iv
e
e
l
ec
t
ri
c
a
l
p
a
rt
s
o
r
e
l
e
c
tr
o
de
w
i
t
h
sk
in
o
r we
t
cl
ot
h
i
n
g
I
ns
u
l
a
t
e
y
ou
r
s
e
l
f
from
work a
n
d
g
ro
u
nd
.
A
l
w
a
y
s
w
e
ar d
ry
i
n
s
u
l
a
t
in
g
g
l
ov
e
s
.
D
o
n
o
t u
s
e
A
C
w
e
l
d
e
r
if
y
o
ur
c
l
o
t
h
in
g
,
glo
ve
s
o
r
w
ork
a
re
a
is
d
am
p
o
r
i
f
w
or
k
ing
o
n,
u
nd
er
o
r
i
ns
id
e
w
o
r
k
p
la
c
e
.
U
s
e
th
e
fol
l
o
wi
n
g
e
q
u
ip
m
ent
:
S
e
m
ia
utom
a
ti
c
DC
c
o
n
sta
n
t v
o
lta
ge
(wire
)
weld
e
r
.
D
C
M
a
n
u
a
l
(s
t
i
c
k
)
w
el
d
e
r
Ac w
e
l
d
e
r
w
ith
r
e
du
c
e
d
v
o
lt
a
ge
con
t
rol.
D
o
no
t
o
p
er
a
t
e
w
i
t
h
pa
nel
s
re
mo
v
e
d
Di
s
c
on
nec
t inp
u
t
po
wer
b
e
f
or
e
s
e
r
v
ic
i
n
g
.
ONLY
QUA
LIF
IED P
ERS
ONAL
SHOUL
D INS
T
AL
L, USE OF
S
ER
V
IC
E
T
H
IS
EQU
IPMENT
. R
EAD
AND
F
O
LL
OW THE M
ANU
F
ACT
U
R
E
’S
INSTR
UCT
ION
S
,
EMP
L
O
Y
E
R
’S
SA
FETY
PRACTIC
ES A
ND MA
T
ERIAL
S
A
FET
Y D
A
TA
S
HEE
TS
(
MSD
S) FOR C
ONSU
MABLE
S.
V
M
M1
6
196
ELE
C
TR
IC SH
OCK
c
a
n kill
WARNING
R
E
A
D
THI
S
W
A
R
NING
,
P
ROT
E
C
T YO
U
RS
EL
F
&
O
T
H
ER
S
.
S
ee
A
meric
a
n
N
a
t
i
ona
l S
t
an
d
a
r
d
Z
49.
1 "
Sa
fet
y in
W
eld
in
g a
n
d
Cut
t
i
n
g"
,
p
ub
lis
h
ed
b
y
the
Ame
ri
c
an W
e
ld
ing So
c
ie
ty
,
550
Le
Jeune Rd.,
M
iami, F
lorida 3
3126;
OSHA
S
afety
a
nd Heath
Standards,
2
9 C
FR
1910 A
vailable
from U
.S. Government
Pri
nting
O
f
fic
e
, W
a
shin
g
to
n,
D.C.
2
04
0
2.
D
O
NO
T
R
E
MO
VE
T
H
I
S
W
A
RN
IN
G
AV
E
RTISEME
N
T
:
L
A
S
OUDU
R
E
A
L
’A
R
C
C
OMP
OR
T
E D
E
S RISQU
ES D
E
B
L
ES
S
R
E
S P
U
R
L
’O
P
E
R
A
TE
UR O
ULES
P
E
RS
O
NN
E
S
DANIS
LA
Z
O
N
E DE
T
R
A
VAIL. C
O
NSU
L
TER
LA
N
O
T
I
C
E
TEC
HNIQ
U
E
A
VA
N
T
U
T
I
LI
S
A
T
IO
N
.
FUMES AND G
A
SES c
a
n
be
d
ang
er
ou
s to y
our
he
alth
K
ee
p
y
ou
r he
a
d
o
ut
of
fume
s
.
U
se
e
n
oug
h
ve
nt
i
la
t
ion
or
ex
h
aust
at
t
h
e
ar
c
,
or
both
,
t
o k
eep f
um
e
s
a
n
d ga
s
es from
y
o
u
r
b
r
e
a
th
ing
wo
ne
a
nd
g
e
neral
ar
e
a.
W
ELDING SP
AR
KS can
c
aus
e
f
ire
or
e
xpl
osio
n
.
Do n
o
t
w
e
l
d
ne
a
r
fl
a
mm
ab
l
e
m
ater
ia
l.
Do
not w
el
d
o
n
co
n
ta
i
n
ers w
h
ic
h
hav
e he
ld
flam
m
abl
e
ma
t
e
r
i
al
AR
C
RA
YS can
inju
re ey
e
s a
nd
b
urn s
k
in.
W
ear
ey
e
ea
r a
nd b
od
y p
rote
ct
i
o
n
LN-7 GMA CONTROL
WIRE SPEED
INCHES PER MINUTE
100
200
150
250
700
650
600
550
500
450
400
350
300
S
E
R
I
A
L
N
O
.
CODE NO.
LN-7
NEM
A EW3
115V, 50/60 HZ AMPS
This machine a
nd the ac
cessories are cov
e
re
d by one or m
ore
of the
follo
win
g
patents: U
nited
s
ta
tes 3,8
06,6
95; 3.975
,616; 4,246,463;
4
,247,751; Australia 467,4
47; 499,5
02; 517,120; 525
,541; B
razil 79
,787; P
I
7,8
03,421; PI 7,9
05,509; Canada 965,487
; 1,041
,181
; 1,0
93
,159
; 1,1
19,674
;
European Pa
tent 8527
(France, W
es
t G
erma
ny
, United Kingdom,
Netherlands
, Italy
, Swe
den); Fra
nce 7
3.01477; 7
5 34477
; 78 14
757l Italy
1,102,5
02; Mexico 147,019; S
. Korea 19064; S
weden 78051
12
-5; U
nited
King
dom 1,529,7
26; 1,5
79,7
00; W
. G
ermany 25 50
278; 28 23 2
93.
Other patents
pending.
LN-7 GMA shown with optional
K417 digital meter kit and K418
GMA timer kit.
For machines with code numbers: 9100 and above
• Sales and Service through Subsidiaries and Distributors Worldwide •
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