Lincoln Electric IM351 LN-7 GMA Wire Feeder User Manual
Ln-7 and ln-7 gma wire feeders, Safety depends on you, World's leader in welding and cutting products

LN-7 and LN-7 GMA Wire Feeders
(2 and 4 Roll Models)
OPERATORʼS MANUAL
IM351-D
June 2013
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 thoughtful operation on your
part. DO NOT INSTALL, OPER-
ATE OR REPAIR THIS EQUIP-
MENT WITHOUT READING
THIS MANUAL AND THE
SAFETY PRECAUTIONS CON-
TAINED THROUGHOUT. And,
most importantly, think before you
act and be careful.
VOL
TS
NEGA
TIVE
EL
EC
TR
OD
E
PO
LA
RIT
Y
PO
SI
TIVE
TH
E
LINC
OLN
E
LE
CT
RIC
CO
.
TH
E
LINC
OLN
ELE
CTR
IC
CO
.
CL
EV
ELA
ND
, O
H U
.S.A
.
CLE
VE
LA
ND
, OH
U.
S.
A.
D
o n
ot
to
uch
live
e
le
ctr
ica
l p
ar
ts
or e
le
ctr
od
e
with
skin
o
r w
et
cl
ot
hin
g
D
o
no
t to
uc
h
live
el
ectr
ica
l p
ar
ts
or
el
ec
tro
de
w
ith
skin
or
w
et
cl
ot
hin
g
In
su
la
te
y
ou
rse
lf fr
om
w
or
k
an
d g
ro
un
d.
In
su
la
te
yo
ur
se
lf
fro
m
w
or
k
an
d
gr
ou
nd
.
A
lwa
ys we
ar
d
ry in
su
la
tin
g g
lo
ve
s.
A
lwa
ys
w
ea
r d
ry
in
su
la
ting
glo
ve
s.
D
o n
ot
u
se
A
C
w
eld
er
if
yo
ur
c
lo
th
in
g,
g
lo
ve
s
or
w
or
k
ar
ea
is d
am
p
or
if
wo
rkin
g o
n,
u
nd
er
o
r i
nsi
de
wo
rkp
la
ce
.
D
o
no
t u
se
A
C
w
eld
er
if
yo
ur
cl
ot
hi
ng
, g
lo
ves
or
w
or
k
ar
ea
is
dam
p
or
if
w
or
kin
g
on
, u
nd
er
or
insi
de
wo
rkp
la
ce
.
U
se
th
e
fo
llo
w
in
g e
qu
ip
m
ent:
U
se
th
e
fo
llo
w
in
g
eq
uip
me
nt:
S
emia
uto
m
at
ic
DC
co
ns
ta
nt
vo
lta
ge
(w
ire
) w
eld
er.
S
emia
uto
m
at
ic
D
C
co
ns
ta
nt
volta
ge
(w
ire
) w
el
de
r.
DC
M
an
ua
l (
st
ick)
w
eld
er
DC
M
an
ua
l (
stick
) w
eld
er
A
c w
eld
er
wit
h r
ed
uce
d vo
lta
ge
c
on
tro
l.
A
c
w
eld
er
wit
h
re
du
ce
d
vo
lta
ge
co
ntr
ol
.
Do
n
ot
o
pe
ra
te
with
p
ane
ls r
em
ov
ed
Do
no
t o
pe
ra
te
with
pa
ne
ls
re
m
ov
ed
Disc
on
ne
ct
in
pu
t p
owe
r b
ef
or
e
se
rvi
cin
g.
Disc
on
ne
ct
in
pu
t p
ow
er
be
fo
re
se
rvi
cin
g.
ONL
Y
QU
AL
IF
IED
PE
RSO
NAL
SH
OU
LD
IN
ST
AL
L,
USE O
F SER
VI
CE
THI
S
EQ
UIPMEN
T. R
EAD
AN
D F
OL
LO
W
T
HE MAN
UF
AC
TU
RE
'S
IN
STR
UCTIO
NS,
EMPL
OYER
'S
SAF
ETY
PRAC
TIC
ES AN
D
MA
TERIAL
SAF
ET
Y
DA
TA
SHEET
S
(MSD
S)
F
OR
CO
NSU
MABL
ES.
ONL
Y
QU
AL
IF
IED
PE
RSO
NAL
SH
OU
LD
INST
AL
L,
USE
OF
SER
VI
CE
THI
S
EQ
UIPMEN
T.
READ
AN
D
FO
LL
OW
TH
E
M
AN
UF
AC
TU
RE
'S
IN
STR
UCTIO
NS,
EMPL
OYER
'S
SAF
ETY
PRAC
TIC
ES
AN
D
MA
TERIAL
SAF
ET
Y
DA
TA
SHEET
S
(MSD
S)
FO
R
CO
NSU
MABL
ES.
VM
M
16
19
6
EL
EC
TR
IC
SH
OCK
ca
n
ki
ll
W
ARNING
REA
D
TH
IS
W
AR
NI
NG
, P
RO
TE
CT
Y
OU
RSE
LF
&
O
TH
ER
S.
Se
e A
m
eri
ca
n
Na
tion
al S
ta
nd
ard Z
4
9.1
"S
af
et
y
in
W
el
di
ng
a
nd
Cu
tti
ng
",
pu
bl
ish
ed
b
y th
e
Am
eric
an
W
eld
in
g
So
cie
ty,
Se
e
Am
eri
ca
n
Na
tion
al
St
an
da
rd
Z
49.1
"S
af
et
y
in
W
el
di
ng
an
d
Cu
tti
ng
",
pu
bl
ish
ed
by
th
e
Am
eric
an
W
eld
in
g
So
cie
ty,
55
0
Le
Je
un
e
Rd
.,
M
iam
i, Fl
or
ida
3
31
26
; OS
HA
S
afe
ty
an
d
He
ath
S
tan
da
rd
s, 2
9
CF
R
19
10
A
va
ila
ble
fr
om
U
.S
. G
ov
er
nm
en
t
55
0
Le
Je
un
e
Rd
.,
M
iam
i, Fl
or
ida
33
12
6;
OS
HA
Sa
fet
y
an
d
He
ath
St
an
da
rd
s,
29
CF
R
19
10
Av
ail
ab
le
fro
m
U.
S.
Go
ve
rn
m
en
t
Pri
nt
in
g
O
ffi
ce
, W
as
hin
gt
on
, D
.C.
2
040
2.
DO
N
O
T
RE
M
O
VE
T
HI
S
W
ARN
IN
G
Pri
nt
in
g
O
ffi
ce
, W
as
hin
gt
on
, D
.C.
20
40
2.
DO
NO
T
RE
M
O
VE
TH
IS
W
ARN
IN
G
AV
ER
TI
SE
ME
NT
:
LA
S
OUD
UR
E
A
L'A
RC
C
OM
PO
RT
E
DE
S
RI
SQ
UE
S
DE
BLE
SS
RE
S
PU
R
L'O
PE
RA
TE
UR
O
ULE
S
PE
RS
ONN
ES
D
AN
IS
LA
Z
ONE
D
E
TRA
VA
IL.
CO
NS
UL
TE
R
LA
NO
TI
CE
T
ECH
NI
QUE
A
VA
NT
U
TI
LI
SAT
IO
N.
AV
ER
TI
SE
ME
NT
:
LA
SO
UD
UR
E
A
L'A
RC
CO
M
PO
RT
E
DE
S
RI
SQ
UE
S
DE
BLE
SS
RE
S
PU
R
L'O
PE
RA
TE
UR
OULE
S
PE
RS
ONN
ES
DA
NI
S
LA
ZO
NE
DE
TRA
VA
IL.
CO
NS
UL
TE
R
LA
NO
TI
CE
TE
CH
NI
QUE
AV
AN
T
UT
ILI
SAT
IO
N.
FUM
ES
A
ND
GA
SE
S
ca
n
be
dan
ge
rou
s
to
yo
ur
h
eal
th
Ke
ep
yo
ur
h
ea
d
ou
t o
f f
um
es
.
Ke
ep
yo
ur
he
ad
ou
t o
f f
um
es
.
Us
e
en
ou
gh
ve
nti
lat
ion
o
r e
xh
au
st
at
th
e
ar
c,
or
b
ot
h,
to
ke
ep
fu
m
es
a
nd
g
as
es
fr
om
yo
ur
b
re
at
hin
g
wo
ne
a
nd
ge
ne
ra
l a
re
a.
Us
e
en
ou
gh
ve
nti
lat
ion
or
ex
ha
us
t a
t t
he
ar
c,
or
bo
th
,
to
ke
ep
fu
m
es
an
d
ga
se
s f
ro
m
yo
ur
bre
at
hin
g
wo
ne
an
d
ge
ne
ra
l a
re
a.
W
EL
DI
NG
S
PA
RKS
can
ca
use
fir
e
or
e
xp
lo
si
on
.
Do
n
ot
w
eld
n
ea
r f
lam
m
ab
le
m
at
er
ial
.
Do
no
t w
eld
ne
ar
fla
m
m
ab
le
m
at
er
ial
.
Do
n
ot
w
eld
o
n
co
nta
ine
rs
w
hic
h
ha
ve
h
eld
fla
m
m
ab
le
m
at
er
ial
Do
no
t w
eld
on
co
nta
ine
rs
wh
ich
ha
ve
he
ld
fla
m
m
ab
le
m
at
er
ial
ARC
R
AY
S
can
in
ju
re
eye
s
an
d
bu
rn
sk
in
.
W
ea
r e
ye
e
ar
a
nd
b
od
y p
ro
te
cti
on
W
ea
r e
ye
ea
r a
nd
bo
dy
pr
ot
ec
tio
n
LN-
7 G
MA
CO
NTRO
L
WIRE
SP
EED
IN
CH
ES PER
M
IN
UTE
10
0
200
15
0
25
0
700
650
600
550
50
0
45
0
40
0
35
0
30
0
SER
IAL
N
O.
SER
IAL
NO
.
CO
DE
NO
.
CO
DE
NO
.
LN-7
NE
M
A E
W3
11
5V
, 5
0/6
0 H
Z
A
MP
S
Thi
s mac
hin
e a
nd t
he
acc
ess
orie
s ar
e c
ove
red b
y on
e or
mor
e o
f th
e
fol
low
ing
pate
nts
: U
nite
d s
tat
es
3,8
06,69
5;
3.97
5,6
16; 4,2
46,4
63;
Thi
s mac
hin
e a
nd
the
access
orie
s ar
e c
ove
red
by
on
e or
mor
e o
f th
e
fol
low
ing
pate
nts
: U
nite
d s
tate
s 3
,80
6,69
5;
3.97
5,6
16;
4,2
46,4
63
;
4,2
47
,751;
Aus
trali
a 46
7,44
7; 49
9,50
2; 51
7,12
0; 52
5,54
1;
Br
azi
l 79
,787
; PI
7,8
03,
421;
PI
7,90
5,50
9;
Cana
da
96
5,487
; 1,041
,18
1; 1,09
3,15
9; 1,1
19,67
4;
4,2
47
,751;
Aus
trali
a 46
7,44
7;
49
9,50
2;
51
7,12
0;
52
5,54
1;
Br
azi
l 79
,787
; PI
7,8
03,
421;
PI
7,90
5,50
9;
Cana
da
96
5,487
; 1,0
41
,18
1;
1,09
3,15
9; 1,1
19,67
4;
Eur
opea
n Pat
en
t 852
7 (
Fra
nce
, W
es
t G
ermany
, U
nite
d K
ing
do
m,
Nethe
rlands
, Ital
y, Sw
ed
en)
; F
rance
73
.01
477; 75
344
77
; 78 14
75
7l I
tal
y
Eur
opea
n Pat
en
t 852
7 (F
ran
ce,
W
es
t G
ermany
, U
nite
d K
ing
do
m,
Nethe
rlands
, Ital
y, Sw
ed
en)
; F
rance
73
.01
477;
75
344
77
; 78
14
75
7l
Ital
y
1,1
02
,502;
Me
xic
o 14
7,01
9;
S.
Ko
rea
1906
4; Sw
ede
n 78
051
12
-5;
Un
ited
Ki
ngd
om 1,
529,
726;
1,5
79
,700
; W
. G
erma
ny
25 50
27
8; 28
23
29
3.
Othe
r pat
en
ts p
endi
ng.
1,1
02
,502;
Me
xic
o 14
7,01
9;
S.
Ko
rea
1906
4;
Sw
ede
n 7
805
112
-5;
Un
ited
Ki
ngd
om
1,5
29,
726;
1,5
79
,700
; W
. G
erma
ny
25
50
27
8;
28
23
293.
Othe
r pat
en
ts
pendi
ng.
LN-7 GMA shown with optional
K417 digital meter kit and K418
GMA timer kit.
For machines with code numbers: 9100 and above
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