Lincoln Electric LN-7 GMA WIRE FEEDERS User Manual

4 (1)
LN-7 and LN-7 GMA Wire Feeders
RETURN TO MAIN MENU
For machines with code numbers: 9100 and above
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 y our part. DO
NOT INSTAL L, O PERATE OR REP A I R TH I S EQ U IPMEN T WIT H O U T REA D I N G THI S MAN U A L A N D TH E SA F E T Y PRE CAUT I ONS CO N TAIN E D THR O U G HOUT. And , most
importantly, think before you act and be careful.
LN-7 GMA shown with optional
K417 digital meter kit and K418
GMA timer kit.
(2 and 4 Roll Models)
S
E
R
This machine a
I
A
follo
L
N
win
O
4
,247,751; Australia 467,4
g
.
patents: U
7,8
nd the ac
LN-7 GMA CONTROL
WIRE SPEED
INCHES PER MINUTE
350
300
400
250
450
200
500
150
550
100
600
650
700
European Pa Netherlands 1,102,5 King Other patents
03,421; PI 7,9
02; Mexico 147,019; S
dom 1,529,7
cessories are cov
nited
s
05,509; Canada 965,487
tent 8527 , Italy
, Swe
(France, W den); Fra
26; 1,5
pending.
79,7
115V, 50/60 HZ AMPS
ta
tes 3,8
47; 499,5
es
nce 7
. Korea 19064; S
00; W
. G
LN-7
NEM
06,6
95; 3.975
02; 517,120; 525
t G
erma
3.01477; 7
ermany 25 50
A EW3
e
re
; 1,041
CODE NO.
d by one or m
,616; 4,246,463; ,181
ny
, United Kingdom,
5 34477
weden 78051
,541; B ; 1,0
278; 28 23 2
IM351-C
June, 2010
VOLTS
ELECTRODE
E
ore
of the
razil 79
93
,159
,787; P
; 1,1
; 78 14
757l Italy
12
-5; U nited
93.
POLARITY
19,674
POSITIV
I
;
NEGATIVE
THE LINCOLN ELECTRIC CO.
n kill
tr
a
c e l
c
e r o
.
s
nd
rt
OCK
u
a
p
ro
l
a
g
glo
c
d
.
,
ri
n
s
t
r
g
e
IC SH
o
in
ec l
ov
h
l
t
er
WARNING
e
o
g
g
TR
l
e
work a
n
nd
g
i
iv
c
C
u
l
h
in
t
ur
h
ot
a
n,
o
l
c
from
o
y
cl
u f l
t
s
(wire
ou
ELE
e
t
if
n
r
s
ing
i
ge
r
e
k
ot
r we
ry
d
l
lta
or
ou
:
o
e
o
o n
w
y
w
in
f
ar d
D
rol.
e
ent
t v
t
t
i
e
n
C
r
sk
a
m
l
w
o
u
ip
A
con
s
sta
p
u
e
y
n
ns
s
q
I
a
o
d
ge
r
e
g
am
c
w
e
a
e
t u
l
n
d
g
v
.
lt
i
d
o
A
n
e
o
n
ic
el
c
v
is
v
DC
mo
wi
o
r
w
a
la
c
d
o
e
l
)
D
ti
p
e
re
re
s
k
k
a
c
s
a
c
r
fol
i
e
t
o
e
du
or
nel
w
(s
f
e
th
r
’S
l
utom
e
pa
a
E
b
e
ia
u
s
ith
h
R
t
n
m
i
U
w
U
a
e
FET
w
wer
r
L, USE OF
S
A
M
e
e t
d
po
AL
S
l
ACT
C
a
t
T
e
F
D
u
er p o
ANU
Ac w
t inp
ERIAL
t
D INS
T
no
nec
Sa
o
D
on c
1 "
ND MA
s
SHOUL
Di
OW THE M
49.
ES A
LL
OSHA
ONAL
O
Z
D
F
d
r
ERS
2.
a
0
S.
3126;
d
AND
PRACTIC
04
IED P
an
t
EAD
2
LIF
MABLE
FETY
l S
. R
lorida 3
SA
QUA
D.C.
ona
’S
i
ONSU
t
R
n,
E
a
IPMENT
Y
ONLY
to
iami, F
N
O
g
M
L
n
EQU
a
S) FOR C
shin
EMP
a
MSD (
meric
, W
e
A
Jeune Rd.,
fic
ee
f
S
Le
O
550
nting
Pri
CLEVELAND, OH U.S.A.
.
S
ER
H
T
O
&
F
EL RS
U
be
n
a
T YO
C
E
alth
SES c
,
ROT
nd
P
he
A
a
,
both
ne or ,
our
c
wo
ar
NING
ing
e
R
h
th
t
a
A
e
.
at
r
s
s to y
b
W
r
e
u
aust
S
o
fume
ou
h
y
of
ex
er
THI
aus
ut
or
o
FUMES AND G
D
c
d
es from
ion
a
t
A
s
ang
la
E
i
d
r he
nt
R
d ga n
ou
ve
a
y
h
s
p
e
e
KS can
ee
oug
abl
K
um
n
m
a.
e
e
AR
se
ar
.
eep f
flam
U
l.
n
ld
o k
ia
t
neral
e
e he
ater
g
nd
m
osio
e
hav
l
h
s a
ic
ab
h
xpl
e
mm
a
e
ELDING SP
fl
ers w
E
r
n i
a
or
W
ta
re ey
ne
n
d
ES D
l
co
E DE
e
ire
n
N
f
o w t
.
O
d
o
inju
N
Z
el
IO
Do n
LA
S RISQU
T
al
not w
A
E
i r
S
,
e
t
n
Do
LI
o
E D
ty
i
I
ma
T
YS can
T
ct
DANIS
ie
U
S
c
OR
rote
T
E
N
RA
y p
in.
NN
C
od
VA
k
OMP
O
A
C
h
nd b
ing So
E
RS
t
C
AR
i
w de o
r o s e
ve
id
ns i
weld )
.
IC V
UCT
ER S
TA A
INSTR Y D
y in
fet
afety
S NO
O
U
E
r a
R
ld
196
P
’A
e
ea
6
urn s
e
L
b
HNIQ
ey
A
M1
E
ULES
ear
R
.S. Government
an W
TEC
M
W
ork
w
.
r
e
H
T
ION
E
HEE
S
W
a R
T
c
E
V
ri
UR O
C I T
OUDU
TE
O
A
S
R
from U
A
N
Ame
L
E
P
:
LA
T
’O
N
the
L
y
TER
R
L
b
vailable
U
S P
NSU
ed
E
O
h
RTISEME
R
E
S
lis
1910 A
AV
ES
ub
L
VAIL. C
FR
p
B
A
,
R T
g"
9 C
,
IS
2
n
S
i
G
t
IN
TS
Cut
RN
d
n
A
W
Standards,
g a
S
in
I
H
eld
T
VE
nd Heath
MO
E
Cleveland, Ohio 44117-1199 U.S.A. TEL: 216.481.8100 FAX: 216.486.1751 WEB SITE: www.lincolnelectric.com
OPERATOR’S MANUAL
Copyright © Lincoln Global Inc.
• World's Leader in Welding and Cutting Products •
• Sales and Service through Subsidiaries and Distributors Worldwide •
i
SAFETY
i
WARNING
CALIFORNIA PROPOSITION 65 WARNINGS
Diesel engine exhaust and some of its constituents are known to the State of California to cause can­cer, birth defects, and other reproductive harm.
The Above For Diesel Engines
ARC WELDING CAN BE HAZARDOUS. PROTECT YOURSELF AND OTHERS FROM POSSIBLE SERIOUS INJURY OR DEATH. KEEP CHILDREN AWAY. PACEMAKER WEARERS SHOULD CONSULT WITH THEIR DOCTOR BEFORE OPERATING.
Read and understand the following safety highlights. For additional safety information, it is strongly recommended that you purchase a copy of “Safety in Welding & Cutting - ANSI Standard Z49.1” from the American Welding Society, P.O. Box 351040, Miami, Florida 33135 or CSA Standard W117.2-1974. A Free copy of “Arc Welding Safety” booklet E205 is available from the Lincoln Electric Company, 22801 St. Clair Avenue, Cleveland, Ohio 44117-1199.
BE SURE THAT ALL INSTALLATION, OPERATION, MAINTENANCE AND REPAIR PROCEDURES ARE PERFORMED ONLY BY QUALIFIED INDIVIDUALS.
The engine exhaust from this product contains chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.
The Above For Gasoline Engines
FOR ENGINE powered equipment.
1.a. Turn the engine off before troubleshooting and maintenance work unless the maintenance work requires it to be running.
____________________________________________________
1.b. Operate engines in open, well-ventilated areas or vent the engine exhaust fumes outdoors.
____________________________________________________
1.c. Do not add the fuel ne ar an o pe n flam e
welding arc or when the engine is running. Stop the engine and allow it to cool before refueling to prevent spilled fuel from vaporiz­ing on contact with hot engine parts and igniting. Do not spill fuel when filling tank. If fuel is spilled, wipe it up and do not start engine until fumes have been eliminated.
____________________________________________________
1.d. Keep all equipment safety guards, covers and devices in position and in good repair.Keep hands, hair, clothing and tools away from V-belts, gears, fans and all other moving parts when starting, operating or repairing equipment.
____________________________________________________
1.e. In some cases i t ma y be n ecessary to r emove sa fety
gu a rds t o perf o rm r e quir ed ma i nten ance . Rem o ve guards only when necessary and replace them when the ma i nten a nce r e qui r ing t h eir r e mov a l is co m plet e . Always use the greatest care when working near moving parts.
___________________________________________________
1.f. Do not put your hands near the engine fan. Do not attempt to override the governor or idler by pushing on the throttle control rods while the engine is running.
1.h. To avoid scalding, do not remove the radiator pressure cap when the engine is hot.
ELECTRIC AND MAGNETIC FIELDS may be dangerous
2.a. Electric curren t flow in g through a ny conduc tor causes local ized Electric and Magn etic Fields (EMF). Weld ing curre nt cr eates EMF fi elds around welding cables and welding machines
2.b. EMF fields m ay interfe re with some p ac em ak er s, and welders having a pacemaker should consult their physician before welding.
2.c. Exposure to EMF fields in welding may have other health effects which are now not known.
2.d. All welders should use the following procedures in order to minimize exposure to EMF fields from the welding circuit:
2.d.1.
Route the electrode and work cables together - Secure them with tape when possible.
2.d.2. Nev er coil the el ec tr od e lead a ro und yo ur body.
2.d.3. Do not place your body between the electrode and
work cables. If the electrode cable is on your right side, the work cable should also be on your right side.
___________________________________________________
1.g. To prevent accidentally starting gasoline engines while turning the engine or welding generator during maintenance work, disconnect the spark plug wires, distributor cap or magneto wire as appropriate.
2.d.4. Connect the work cable to the workpiece as close as possible to the area being welded.
2.d.5. Do not work next to welding power source.
ii
SAFETY
ii
ELECTRIC SHOCK can kill.
3.a. The electrode and work (or ground) circuits are electrically “hot” when the welder is on. Do not touch these “hot” parts with your bare skin or we t clot hing. W ear dry, hole -free
gloves to insulate hands.
3.b. Insulate yourself from work and ground using dry insulation. Make certain the insulation is large enough to cover your full area of physical contact with work and ground.
In addition to the normal safety precautions, if welding mu st be per forme d unde r e lect rica lly haz ardo us conditions (in damp locations or while wearing wet clothing; on metal structures such as floors, gratings or scaffolds; when in cramped positions such as sitting, kneeling or lying, if there is a high risk of unavoidable or accidental contact with the workpiece or ground) use the following equipment:
• Semiautomatic DC Constant Voltage (Wire) Welder.
• DC Manual (Stick) Welder.
• AC Welder with Reduced Voltage Control.
3.c. In semiautomatic or automatic wire welding, the electrode, electro de re el, welding head, nozzle or s emiautoma tic welding gun are also electrically “hot”.
3.d. Always be sure the work cable makes a good electrical connection with the metal being welded. The connection should be as close as possible to the area being welded.
3.e. Ground the work or metal to be welded to a good electrical (earth) ground.
3.f.
Maintain the electrode holder, work clamp, welding cable and welding machine in good, safe operating condition. Replace damaged insulation.
3.g. Never dip the electrode in water for cooling.
3.h. Ne ve r si multane ou sly touch elect rically “ho t” p ar ts o f electrode holders connected to two welders because voltage between the two can be the total of the open circuit voltage of both welders.
3.i. When working above floor level, use a safety belt to protect yourself from a fall should you get a shock.
3.j. Also see Items 6.c. and 8.
ARC RAYS can burn.
4.a. Use a shield with the proper filter and cover plates to protect your eyes from sparks and the rays of the arc when welding or observing open arc welding. Headshield and filter lens should conform to ANSI Z87. I standards.
4.b. Use suitable clothing made from durable flame-resistant material to protect your skin and that of your helpers from the arc rays.
4.c. Protect other nearby personnel with suitable, non-flammable screening and/or warn them not to watch the arc nor expose themselves to the arc rays or to hot spatter or metal.
FUMES AND GASES can be dangerous.
5.a. Weldi ng may produce fumes and gases hazardous to health. Avoid breathing these fumes a nd gases. When weld in g, keep your head out of the fume. Use enough ventilation and/or exhaust at the arc to keep
fumes and gases away from the breathing zone. When
we lding wit h e lectr odes whi ch requi re speci al ve ntil atio n such a s stai nles s or har d faci ng (se e instructions on container or MSDS) or on lea d or cadmium plated steel and other metals or coatings which produce highly toxic fumes, keep exposure as low as possible and within applicable OSHA PEL and ACGIH TLV limits using local exhaust or mechanical ventilation. In confined spaces or in some circum­st ance s, out door s, a res pira tor may be requ ired . Additional precautions are also required when welding on galvanized steel.
5. b. The operation of welding fume control equipment is affected by various factors including proper use and positioning of the equipment, maintenance of the equipment and the spe­cific welding procedure and application involved. Worker exposure level should be checked upon installation and periodically thereafter to be certain it is within applicable OSHA PEL and ACGIH TLV limits.
5.c.
Do not weld in locations near chlorinated hydrocarbon coming from degreasing, cleaning or spraying operations. The heat and rays of the arc can react with solvent vapors form phosgene, a highly toxic gas, and other irritating prod­ucts.
5.d. Shielding gases used for arc welding can displace air and
cause injury o r death. A lw ay s use en ough v en ti la ti on , especially in confined areas, to insure breathing air is safe.
vapors
to
5.e. Read and understand the manufacturer’s instructions for this
equipment and the consumables to be used, including the ma t eria l s a fety data shee t ( M SDS) and fo llo w yo ur employer’s safety practices. MSDS forms are available from yo u r we ldin g di stri b uto r or fro m th e ma n ufa c tur e r.
5.f. Also see item 1.b.
iii
SAFETY
iii
WELDING and CUTTING SPARKS can cause fire or explosion.
6.a.
Remove fire hazards from the welding area.
If this is not possible, cover them to prevent
Re m embe r th at weld i ng spar ks and hot materials from welding can easily go through small cracks an d ope ni ngs t o adjac ent a rea s. A voi d weldi ng nea r hydraulic lines. Have a fire extinguisher readily available.
6.b. Where compressed gases are to be used at the job site, special precautions should be used to prevent hazardous situations. Refer to “Safety in Welding and Cutting” (ANSI Standar d Z49. 1) and the operating inform ation f or the equipment being used.
6.c. When not welding, make certain no part of the electrode circuit is touching the work or ground. Accidental contact can cause overheating and create a fire hazard.
6.d. Do not heat, cut or weld tanks, drums or containers until the proper steps have been taken to insure that such procedures will not cause flammable or toxic vapors from substances inside. They can cause an explosion even been “cleaned”. For information, purchase “Recommended Safe Practices for the Co n tain e rs and Pip i ng That Ha v e He ld Haz a rdou s Substances”, AWS F4.1 from the American Welding Society
(see address above).
6.e. Vent hollow castings or containers before heating, cutting or welding. They may explode.
Sparks and spatter are thrown from the welding arc. Wear oil
6.f. free protective garments such as leather gloves, heavy shirt, cuffless trousers, high shoes and a cap over your hair. Wear ear plugs when welding out of position or in confined places. Always wear safety glasses with side shields when in a welding area.
6.g. Connect the work cable to the work as close to the welding area as practical. Work cables connected to the building framework or other locations away from the welding area incre ase t he possibility of the welding curren t passing through lifting chains, crane cables or other alternate cir­cuits. This can create fire hazards or overheat lifting chains or cables until they fail.
6.h. Also see item 1.c.
the wel di ng sparks fro m starting a fire.
though
they have
Preparation
for Welding and Cutting of
CYLINDER may explode if damaged.
7.a. Us e only c ompr esse d gas c y lin d ers containing the correct shielding gas for the pr o cess u sed a n d pro perl y oper atin g re g ulat o rs d e sig n ed f or t h e g a s a n d
pressure used. All hoses, fittings, etc. should be suitable for the application and maintained in good condition.
7.b. Always keep cylinders in a n upright position securely chained to an undercarriage or fixed support.
7.c. Cylinders should be located:
• Away from areas where they may be struck or subjected to
physical damage.
• A safe distance from arc welding or cutting operations and
any other source of heat, sparks, or flame.
7.d. Never allow the electrode, electrode holder or any other electrically “hot” parts to touch a cylinder.
7.e. Keep your head and face away from the cylinder valve outlet when opening the cylinder valve.
7.f. Valve protection caps should always be in place and hand tight except when the cylinder is in use or connected for use.
7.g. Re ad a nd f oll ow t he i nst ru cti ons on c omp re sse d ga s cylinders, associated equipment, and CGA publication P-l, “Precautions for Safe Handling of Compressed Gases in Cylinders,” available from the Compressed Gas Association 1235 Jefferson Davis Highway, Arlington, VA 22202.
FOR ELECTRICALLY powered equipment.
8.a. Turn off input power using the disconnect switch at the fuse box before working on the equipment.
8.b. Ins tall equipme nt in accordance with the U .S. Nati onal Electrical Code, all local codes and the manufacturer’s recommendations.
8.c. Ground the equipment in accordance with the U.S. National Electrical Code and the manufacturer’s recommendations.
6.I. Read and follow NFPA 51B “ Standard for Fire Prevention During Welding, Cutting and Other Hot Work”, available from NFPA, 1 Batterymarch Park, PO box 9101, Quincy, Ma 022690-9101.
6.j. Do not use a welding power source for pipe thawing.
Refer to http://www.lincolnelectric.com/safety for additional safety information.
iv
SAFETY
iv
PRÉCAUTIONS DE SÛRETÉ
Pour votre propre protection lire et observer toutes les instructions et les précautions de sûreté specifiques qui parraissent dans ce manuel aussi bien que les précautions de sûreté générales suiv­antes:
Sûreté Pour Soudage A L’Arc
1. Protegez-vous contre la secousse électrique:
a. Les circuits à l’électrode et à la piéce sont sous tension
quand la machine à souder est en marche. Eviter toujours tout contact entre les parties sous tension et la peau nue ou les vétements mouillés. Porter des gants secs et sans trous pour isoler les mains.
b. Faire trés attention de bien s’isoler de la masse quand on
soude dans des endroits humides, ou sur un plancher metallique ou des grilles metalliques, principalement dans les positions assis ou couché pour lesquelles une grande partie du corps peut être en contact avec la masse.
c. Maintenir le porte-électrode, la pince de masse, le câble
de soudage et la machine à souder en bon et sûr état defonctionnement.
d.Ne jamais plonger le porte-électrode dans l’eau pour le
refroidir.
e. Ne jamais toucher simultanément les parties sous tension
des porte-électrodes connectés à deux machines à souder parce que la tension entre les deux pinces peut être le total de la tension à vide des deux machines.
f. Si on utilise la machine à souder comme une source de
courant pour soudage semi-automatique, ces precautions pour le porte-électrode s’applicuent aussi au pistolet de soudage.
2. Dans le cas de travail au dessus du niveau du sol, se protéger contre les chutes dans le cas ou on recoit un choc. Ne jamais enrouler le câble-électrode autour de n’importe quelle partie du corps.
5. Toujours porter des lunettes de sécurité dans la zone de soudage. Utiliser des lunettes avec écrans lateraux dans les zones où l’on pique le laitier.
6. Eloigner les matériaux inflammables ou les recouvrir afin de prévenir tout risque d’incendie dû aux étincelles.
7. Quand on ne soude pas, poser la pince à une endroit isolé de la masse. Un court-circuit accidental peut pr ovoquer un échauffement et un risque d’incendie.
8. S’assurer que la masse est connectée le plus prés possible de la zone de travail qu’il est pratique de le faire. Si on place la masse sur la charpente de la construction ou d’autres endroits éloignés de la zone de travail, on augmente le risque de voir passer le courant de soudage par les chaines de lev­age, câbles de grue, ou autres circuits. Cela peut provoquer des risques d’incendie ou d’echauffement des chaines et des câbles jusqu’à ce qu’ils se rompent.
9. Assurer une ventilation suffisante dans la zone de soudage. Ceci est particuliérement important pour le soudage de tôles galvanisées plombées, ou cadmiées ou tout autre métal qui produit des fumeés toxiques.
10. Ne pas souder en présence de vapeurs de chlore provenant d’o pérations de d égraissage, nettoyage ou pistolage. La chaleur ou les rayons de l’arc peuvent réagir avec les vapeurs du solvant pour produire du phosgéne (gas fortement toxique) ou autres produits irritants.
11. Pour obtenir de plus amples renseignements sur la sûreté, voir le code “Code for safety in welding and cutting” CSA Standard W 117.2-1974.
PRÉCAUTIONS DE SÛRETÉ POUR
3. Un coup d’arc peut être plus sévère qu’un coup de soliel, donc:
a. Utiliser un bon masque avec un verre filtrant approprié
ainsi qu’un verre blanc afin de se protéger les yeux du ray­onnement de l’arc et des projections quand on soude ou quand on regarde l’arc.
b. Porter des vêtements convenables afin de protéger la
peau de soudeur et des aides contre le rayonnement de l‘arc.
c. Pr ot ég er l’autre personnel travaillant à proximité au
soudage à l’aide d’écrans appropriés et non-inflammables.
4. Des gouttes de laitier e n fusion sont ém ises de l’arc de soudage. Se protéger avec des vêtements de protection libres de l’huile, tels que les gants en cuir, chemise épaisse, pan­talons sans revers, et chaussures montantes.
LES MACHINES À SOUDER À TRANSFORMATEUR ET À REDRESSEUR
1. Relier à la terre le chassis du poste conformement au code de l’électricité et aux recommendations du fabricant. Le dispositif de montage ou la piece à souder doit être branché à une bonne mise à la terre.
2. Autant que possible, I’installation et l’entretien du poste seront effectués par un électricien qualifié.
3. Avant de faires des travaux à l’interieur de poste, la debranch­er à l’interrupteur à la boite de fusibles.
4. Garder tous les couvercles et dispositifs de sûreté à leur place.
Thank You
vv
for selecting a QUALITY product by Lincoln Electric. We want you to take pride in operating this Lincoln Electric Company product
••• as much pride as we have in bringing this product to you!
The business of The Lincoln Electric Company is manufacturing and selling high quality welding equipment, consumables, and cutting equip­ment. Our challenge is to meet the needs of our customers and to exceed their expectations. On occasion, purchasers may ask Lincoln Electric for advice or information about their use of our products. We respond to our customers based on the best information in our posses­sion at that time. Lincoln Electric is not in a position to warrant or guarantee such advice, and assumes no liability, with respect to such infor­mation or advice. We expressly disclaim any warranty of any kind, including any warranty of fitness for any customer’s particular purpose, with respect to such information or advice. As a matter of practical consideration, we also cannot assume any responsibility for updating or correcting any such information or advice once it has been given, nor does the provision of information or advice create, expand or alter any warranty with respect to the sale of our products.
Lincoln Electric is a responsive manufacturer, but the selection and use of specific products sold by Lincoln Electric is solely within the control of, and remains the sole responsibility of the customer. Many variables beyond the control of Lincoln Electric affect the results obtained in applying these types of fabrication methods and service requirements.
Subject to Change – This information is accurate to the best of our knowledge at the time of printing. Please refer to www.lincolnelectric.com for any updated information.
CUSTOMER ASSISTANCE POLICY
Please Examine Carton and Equipment For Damage Immediately
When this equipment is shipped, title passes to the purchaser upon receipt by the carrier. Consequently, Claims for material damaged in shipment must be made by the purchaser against the transportation company at the time the shipment is received.
Please record your equipment identification information below for future reference. This information can be found on your machine nameplate.
Product _________________________________________________________________________________
Model Number ___________________________________________________________________________
Code Number or Date Code_________________________________________________________________
Serial Number____________________________________________________________________________
Date Purchased___________________________________________________________________________
Where Purchased_________________________________________________________________________
Whenever you request replacement parts or information on this equipment, always supply the information you have recorded above. The code number is especially important when identifying the correct replacement parts.
On-Line Product Registration
- Register your machine with Lincoln Electric either via fax or over the Internet.
• For faxing: Complete the form on the back of the warranty statement included in the literature packet accompanying this machine and fax the form per the instructions printed on it.
• For On-Line Registration: Go to our
“Product Registration”. Please complete the form and submit your registration.
Read this Operators Manual completely before attempting to use this equipment. Save this manual and keep it handy for quick reference. Pay particular attention to the safety instructions we have provided for your protection. The level of seriousness to be applied to each is explained below:
WEB SITE at www.lincolnelectric.com. Choose “Quick Links” and then
WARNING
This statement appears where the information must be followed exactly to avoid serious personal injury or loss of life.
CAUTION
This statement appears where the information must be followed to avoid minor personal injury or damage to this equipment.
TABLE OF CONTENTS
Page
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . i-iv Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Section A
Technical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1 Mounting Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2 Machine Grounding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2 Input Cable Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2 Work Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-20 Gun and Cable Assemblies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-20 Gun Cable Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-20 Water Connections (For Water Cooled Guns) . . . . . . . . . . . . . . . . . . . . . A-21 Shielding Gas Hookup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-22
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Section B
Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1 General Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1 Recommended Processes and Equipment . . . . . . . . . . . . . . . . . . . . . . . B-2 Controls and Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-2 Circuit Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-3 Avoiding Ground Lead Protector (GLP) Activation . . . . . . . . . . . . . . . . . . B-3 Drive Roll Installation (2 Roll) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-3 Drive Roll Installation (4 Roll) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-5 Idle Roll Pressure Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-7 Wire Loading . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-8 Acceleration Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-12 Wire Speed and Voltage Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-12 Making a Weld . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-13 Wire Reel Changing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-13
K417 Digital Voltmeter Kits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-13
Optional Flux Tank Loading . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-14
vi
Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Section C
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-1 Auxiliary Equipment Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-2 Options/Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-2 Attaching the Wire Reel Stand . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-4
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Section D
Routine Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-1 Periodic Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-1 Sequence of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-4
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Section E
Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Section F Parts Pages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P-283 Series
LN-7 & LN-7 GMA
A-1
INSTALLATION
TECHNICAL SPECIFICATIONS – LN-7 and LN-7 GMA
INPUT VOLTAGE
Supplied by power source: 115 VAC, 50/60 Hz, 2.5 Amps
WIRE FEED SPEED
LN-7 GMA 75 to 700 in. per minute (1.90 to 17.8 m/min) LN-7 50 to 500 in. per minute (1.27 to 12.7 m/min)
WIRE DIAMETERS
A-1
TWO
ROLL
FEEDER
FOUR ROLL
FEEDER
LN-7 GMA
LN-7
WITHOUT
WIRE STAND
WITH WIRE
STAND (K377)
WITHOUT
WIRE STAND
WITH WIRE
STAND (K377)
0.023 in. through 1/16 in. (0.6 through 1.6 mm)
0.045 in. through 5/64 in. (1.2 through 2.0 mm)
0.023 in. through 3/32 in. (0.6 through 2.4 mm)
0.045 in. through 7/64 in. (1.2 through 2.8 mm)
PHYSICAL DIMENSIONS
LENGTH
9.62 in.
(244 mm)
20.68 in.
(525 mm)
9.70 in.
(246 mm)
20.76 in.
(527 mm)
WIDTH
9.76 in.
(247 mm)
9.76 in.
(247 mm)
11.60 in.
(295 mm)
11.60 in.
(295 mm)
HEIGHT
10.89 in.
(277 mm)
17.00 in.
(432 mm)
11.11 in.
(282 mm)
17.00 in.
(432 mm)
solid electrode cored electrode
solid electrode cored electrode
TOTAL WEIGHT
LESS ELECTRODE
24 lbs
(10.9 kg)
36 lbs
(16.3 kg)
30.5 lbs
(13.8 kg)
42.5 lbs
(19.3 kg)
DUTY CYCLE:
The amount of welding performed in a 10 minute period, expressed as a percentage.
LN-7 & LN-7 GMA
A-2
INSTALLATION
LN-7 & LN-7 GMA
A-2
MOUNTING LOCATION
The LN-7 and LN-7 GMA wire feeder can be mounted directly on top of the power source providing that it is secure and level. It can also be mounted to an undercarriage when portability is required.
MACHINE GROUNDING
The LN-7 and LN-7 GMA wire feeders are ground to the power source through the input cable. The power source grounding terminal must be properly connected to electrical ground per the power source operating manual.
INPUT CABLE CONNECTIONS
Various input cable assemblies are available for the LN-7 GMA wire feeder. Refer to the Accessories section for complete descriptions
Turn input power off before connecting the LN-7 GMA wire feeder.
------------------------------------------------------------------------
For connecting an LN-7 GMA to a specific Lincoln power source follow steps 1 through 6, and refer to the connection diagrams in Figure A.3 through A.17 for the specific power source. Table A.1 lists each figure number with its corresponding power source.
Figure # Power Source
A.3 LN-7 GMA To DC-400, DC-250 and CV/CVI Power Sources With Terminal Strip - Connection
Diagram A.4 LN-7 GMA To Pulsed Power 500 - Connection Diagram A.5 LN-7 GMA To CV/CVI Power Sources With 14 Pin Amphenol Connector - Connection Diagram A.6 LN-7 GMA To CV/CVI Power Sources With Twist-Mate Connector and 14 Pin Amphenol/Remote
Control - Connection Diagram A.7 LN-7 GMA To CV/CVI Power Source (K867/K775) - Connection Diagram A.8 LN-7 GMA To R3S-250 or R3S-325 - Connection Diagram A.9 LN-7 GMA To SAM Motor Generator or Engine Welder - Connection Diagram
A.10 LN-7 GMA To DC-600 - Connection Diagram A.11 LN-7 GMA To R3S-400, 600, or 800 - Connection Diagram A.12 LN-7 GMA To Most Lincoln Motor Generators - Connection Diagram A.13 LN-7 GMA To WP250 or G9 PRO - Connection Diagram A.14 LN-7 GMA To Ranger 9 - Connection Diagram A.15 LN-7 GMA To Ranger 10-LX - Connection Diagram A.16 LN-7 GMA To Power Sources With No Output Contactor - Connection Diagram A.17 LN-7 GMA To Power Sources With Contactor and No Terminal Strip - Connection Diagram
TABLE A.1 - LN-7 GMA CONNECTION DIAGRAMS
WARNING
A-3
INSTALLATION
LN-7 & LN-7 GMA
A-3
1. For K291 and K404 cables, connect the end of the control cable with the lugged leads to the power source. If lead #21 is extended to work, do not connect leads to terminal #21 on terminal strip. For K584, K594 or K480 cables connect the 14 pin amphenol connector to the power source. Include any jumpers called for on the connection diagram. Do not add any other jumpers or connections.
Never operate a Lincoln power source that has a jumper from #2 to #4 on the terminal strip, or a power source without a contactor, with this wire feeder. To do so would defeat the purpose of the grounding lead protector circuit and could result in the overheating of the electrical ground circuit to the wire feeder.
------------------------------------------------------------------------
2. For constant voltage power sources with an
output contactor but no terminal strip or 14-pin control receptacle, see Figure A.17. For constant voltage power sources without an internal output contactor, and requiring a K240 Contactor Kit, see Figure A.16.
3. If input cables longer than the standard length
must be used, K292 extension cables (50 ft/15.2 m) can be installed. These have polarized plugs on each end of the control cable and include a 4/0 (107 mm
2
) electrode cable. Install the extensions between the standard input cable and the wire feeder. Total input cable length should not exceed 400 ft (122 m). When using longer lengths of extension cables, it may be necessary to add parallel electrode cables to minimize the voltage drop in the cable.
4. Referring to Figure A.1, route the end of the electrode cable through the large hole in the back panel of the LN-7 case. Connect the electrode cable to the brass conductor block on the front of the gearbox using the 1/2-13 x .75 bolt provided.
Be sure the cable is placed to allow easy access and clearance for the idle roll arm pressure adjustment and to allow the drive roll section cover to close.
WARNING
FIGURE A.1 – INPUT CONTROL CABLE AND ELECTRODE CABLE CONNECTIONS.
CONDUCTOR
BLOCK
CONTROL
CABLE
ELECTRODE
A-4
INSTALLATION
LN-7 & LN-7 GMA
A-4
5. Connect the input control cable polarized Amphenol plug into the mating 6-pin receptacle on the rear of the control section.
6. Referring to Figure A.2, install the input cable under the wire reel mounting stand strain relief
clamp. Remove the screws holding the clamp to the base of the wire reel mounting assembly, put the input cable assembly under the clamp and reinstall the screws.
FIGURE A.2 – STRAIN RELIEF CLAMP.
CONTROL
CABLE
STRAIN
RELIEF CLAMP
ELECTRODE
CABLE
A-5
INSTALLATION
LN-7 & LN-7 GMA
A-5
FIGURE A.3 – LN-7 & LN-7 GMA TO DC-400, DC-250 AND CV/CVI POWER SOURCES WITH
TERMINAL STRIP - CONNECTION DIAGRAM.
WARNING
ELECTRIC
SHOCK
CAN KILL
+
TURN INPUT POWER OFF BEFORE CONNECTING THE LN-7 GMA WIRE FEEDER.
77
CLEVELAND, OHIO U.S.A
A-6
INSTALLATION
LN-7 & LN-7 GMA
A-6
FIGURE A.4 – LN-7 & LN-7 GMA TO PULSED POWER 500 - CONNECTION DIAGRAM.
WARNING
ELECTRIC
SHOCK
CAN KILL
+
TURN INPUT POWER OFF BEFORE CONNECTING THE LN-7 GMA WIRE FEEDER.
CLEVELAND, OHIO U.S.A
A-7
INSTALLATION
LN-7 & LN-7 GMA
A-7
FIGURE A.5 – LN-7 & LN-7 GMA TO CV/CVI POWER SOURCES WITH 14 PIN AMPHENOL
CONNECTOR - CONNECTION DIAGRAM.
WARNING
ELECTRIC
SHOCK
CAN KILL
+
TURN INPUT POWER OFF BEFORE CONNECTING THE LN-7 GMA WIRE FEEDER.
CLEVELAND, OHIO U.S.A
A-8
INSTALLATION
LN-7 & LN-7 GMA
A-8
FIGURE A.6 – LN-7 & LN-7 GMA TO CV/CVI POWER SOURCES WITH TWIST-MATE CONNECTOR
AND 14 PIN AMPHENOL/REMOTE CONTROL - CONNECTION DIAGRAM.
WARNING
ELECTRIC
SHOCK
CAN KILL
+
TURN OFF INPUT POWER TO THE WELDING POWER SOURCE USING THE DISCONNECT SWITCH AT THE FUSE BOX BEFORE CONNECTING THE WIRE FEEDER.
ONLY QUALIFIED PERSONS SHOULD INSTALL, USE, OR SERVICE THIS MACHINE.
CLEVELAND, OHIO U.S.A
A-9
INSTALLATION
LN-7 & LN-7 GMA
A-9
FIGURE A.7 – LN-7 & LN-7 GMA TO CV/CVI POWER SOURCE (K867/K775) - CONNECTION DIAGRAM.
WARNING
ELECTRIC
SHOCK
CAN KILL
+
TURN INPUT POWER OFF BEFORE CONNECTING THE LN-7 GMA WIRE FEEDER.
CLEVELAND, OHIO U.S.A
A-10
INSTALLATION
LN-7 & LN-7 GMA
A-10
FIGURE A.8 – LN-7 & LN-7 GMA TO R3S-250 OR R3S-325 - CONNECTION DIAGRAM.
+
WARNING
ELECTRIC
SHOCK
CAN KILL
TURN INPUT POWER OFF BEFORE CONNECTING THE LN-7 GMA WIRE FEEDER.
CLEVELAND, OHIO U.S.A
A-11
INSTALLATION
LN-7 & LN-7 GMA
A-11
FIGURE A.9 – LN-7 & LN-7 GMA TO SAM MOTOR GENERATOR OR ENGINE WELDER - CONNECTION
DIAGRAM.
WARNING
ELECTRIC
SHOCK
CAN KILL
TURN INPUT POWER OFF BEFORE CONNECTING THE LN-7 GMA WIRE FEEDER.
CLEVELAND, OHIO U.S.A
A-12
INSTALLATION
LN-7 & LN-7 GMA
A-12
FIGURE A.10 – LN-7 & LN-7 GMA TO DC-600 - CONNECTION DIAGRAM.
WARNING
ELECTRIC
SHOCK
CAN KILL
+
TURN INPUT POWER OFF BEFORE CONNECTING THE LN-7 GMA WIRE FEEDER.
CLEVELAND, OHIO U.S.A
Loading...
+ 42 hidden pages