Lincoln Electric INNERSHIELD PRO K126-10 User manual

K126-10, K126-11 and K126-12
Innershield Pro Gun
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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. '&',!&+,$$
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most importantly, think before
you act and be careful.
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• Sales and Service through Subsidiaries and Distributors Worldwide •
Cleveland, Ohio 44117-1199 U.S.A. TEL: [phone] FAX: [phone] WEB SITE: www.lincolnelectric.com
• World's Leader in Welding and Cutting Products •
Copyright © Lincoln lobal Inc.
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IEC 60974-7

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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 near an open flame
welding arc or when the engine is running.
Stop the engine and allow it to cool before
refueling to prevent spilled fuel from vaporiz-
ing 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 it may be necessary to remove safety
guards to perform required maintenance. Remove
guards only when necessary and replace them when the
maintenance requiring their removal is complete.
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.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.
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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.
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2.a. Electric current flowing through any conductor causes
localized Electric and Magnetic Fields (EMF). Welding
current creates EMF fields around welding cables and
welding machines
2.b. EMF fields may interfere with some pacemakers, 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. Never coil the electrode lead around your 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.
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.
1.h. To avoid scalding, do not remove the
radiator pressure cap when the engine is
hot.
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Diesel engine exhaust and some of its constituents
are known to the State of California to cause can-
cer, birth defects, and other reproductive harm.
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 Diesel Engines The Above For asoline Engines

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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 A SI 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.
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 wet clothing. Wear 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
must be performed under electrically hazardous
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,
electrode reel, welding head, nozzle or semiautomatic
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. ever dip the electrode in water for cooling.
3.h. ever simultaneously touch electrically “hot” parts of
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.
FUMES AND GASES
can be dangerous.
5.a. Welding may produce fumes and gases
hazardous to health. Avoid breathing these
fumes and gases. When welding, 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
welding with electrodes which require special
ventilation such as stainless or hard facing (see
instructions on container or MSDS) or on lead 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 circum-
stances, outdoors, a respirator may be required.
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 spe-
cific 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 vapors
coming from degreasing, cleaning or spraying operations.
The heat and rays of the arc can react with solvent vapors to
form phosgene, a highly toxic gas, and other irritating prod-
ucts.
5.d. Shielding gases used for arc welding can displace air and
cause injury or death. Always use enough ventilation,
especially in confined areas, to insure breathing air is safe.
5.e. Read and understand the manufacturer’s instructions for this
equipment and the consumables to be used, including the
material safety data sheet (MSDS) and follow your
employer’s safety practices. MSDS forms are available from
your welding distributor or from the manufacturer.
5.f. Also see item 1.b.

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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. Install equipment in accordance with the U.S. ational
Electrical Code, all local codes and the manufacturer’s
recommendations.
8.c. Ground the equipment in accordance with the U.S. ational
Electrical Code and the manufacturer’s recommendations.
CYLINDER may explode
if damaged.
7.a. Use only compressed gas cylinders
containing the correct shielding gas for the
process used and properly operating
regulators designed for the gas and
pressure used. All hoses, fittings, etc. should be suitable for
the application and maintained in good condition.
7.b. Always keep cylinders in an 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. ever 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. Read and follow the instructions on compressed gas
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.
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
the welding sparks from starting a fire.
Remember that welding sparks and hot
materials from welding can easily go through small cracks
and openings to adjacent areas. Avoid welding near
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” (A SI
Standard Z49.1) and the operating information for 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 though they have
been “cleaned”. For information, purchase “Recommended
Safe Practices for the
Preparation for Welding and Cutting of
Containers and Piping That Have Held Hazardous
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.
6.f.
Sparks and spatter are thrown from the welding arc. Wear oil
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
increase the possibility of the welding current passing
through lifting chains, crane cables or other alternate cir-
cuits. This can create fire hazards or overheat lifting chains
or cables until they fail.
6.h. Also see item 1.c.
6.I. Read and follow FPA 51B “ Standard for Fire Prevention
During Welding, Cutting and Other Hot Work”, available
from FPA, 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.

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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 suiv-
antes:
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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.
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 ray-
onnement 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. Protéger l’autre personnel travaillant à proximité au
soudage à l’aide d’écrans appropriés et non-inflammables.
4. Des gouttes de laitier en fusion sont émises de l’arc de
soudage. Se protéger avec des vêtements de protection libres
de l’huile, tels que les gants en cuir, chemise épaisse, pan-
talons sans revers, et chaussures montantes.
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 provoquer 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 lev-
age, 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’opérations de dégraissage, 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.
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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 debranch-
er à l’interrupteur à la boite de fusibles.
4. arder tous les couvercles et dispositifs de sûreté à leur
place.

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Thank You for selecting a )-$!,1 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!
*847G;<F'C8E4GBEF%4AH4?6B@C?8G8?L 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:
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This statement appears where the information @HFG be followed 8K46G?L to avoid F8E<BHFC8EFBA4?<A=HEL or ?BFFB9?<98.
This statement appears where the information @HFG be followed to avoid @<ABEC8EFBA4?<A=HEL or 74@4:8GBG;<F8DH<C@8AG.
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- 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: o to our
/V+!,4GJJJ?<A6B?A8?86GE<66B@Choose “Quick Links” and then
“Product Registration”. Please complete the form and submit your registration.
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The business of The Lincoln Electric Company is manufacturing and selling high quality welding equipment, consumables, and cutting equip-
ment. 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 posses-
sion at that time. Lincoln Electric is not in a position to warrant or guarantee such advice, and assumes no liability, with respect to such infor-
mation 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.
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 equipment nameplate or product carton label.
Model ame and Sales Spec umber (K-xxx) _____________________________________
Date of Purchase __________________________________
Whenever you request replacement parts for or information on this equipment always supply the information
you have recorded above.

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Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1
Wire Feeder Connector Kits. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2
eneral DescriptIon . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-3
Recommended Processes and Equipment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-3
Connection to Feeder with Ready to Weld un. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-4
Conversion of K126-10, K126-11 or K126-12 to weld with other Wire Feeders. . . . . A-4 thru A-7
__________________________________________________________________________________________
'C8E4G<BA +86G<BA
Electrodes and Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1
Making a Weld . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1
Avoiding Wire Feeding Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1
__________________________________________________________________________________________
668FFBE<8F+86G<BA
Wire Feeder Connection Kits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-1
un Consumable Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-2
__________________________________________________________________________________________
%4<AG8A4A68 +86G<BA
Removal, Installation and Trimming Instructions for All Magnum® Liners . . . . . . . . . . . . D-1
un Tubes and Nozzles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-1
Cable Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-1
__________________________________________________________________________________________
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40%
60%
80%
100%
(EB68FF
FCAW-SS
%B78?
K126-10
K126-11
K126-12
Operating Temperature
Storage Temperature
-4°F to 104°F (-20C to 40C)
-40°F to 185°F (-40C to 85C)
45?8$8A:G;
10ft (3.0m)
15ft (4.5m)
/8<:;G
7.3 lbs (3.3 kg)
11 lbs (5 kg)
?86GEB78<4@8G8E*4A:8
.035” – 3/32"
(0.8 – 2.4 mm)
'HGCHG*4A:8@C8E8F
260A @ 100% duty cycle
350A @ 60% duty cycle
/<E8887+C887*4A:8
(See wire feeder
Instruction Manual)
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435
350
295
260
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K466-2
K466-3
K466-4
K466-5
K466-6
K466-7
K466-8
K466-9
K466-10
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Lincoln
Except LN-8 or LN-9
using 1/16 and larger
electrodes
Tweco Adapted and
any -10 series feeder
Miller
Hobart 27
L-Tec
Adapted
Wirematic
Hobart
Series 2000
Lincoln LN-8 or LN-9
Using 1/16 and larger
electrode
SP100T and Related
Units
Lincoln DH-10
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&BG8 These kits must be used with the KP44-xx series cable liners.
(EB7H6G
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K613-2
K613-3
K613-6
K613-8
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Tweco #5 Adapted
Miller
Lincoln LN-8 or LN-9
Using 1/16 and larger
electrode
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with K1500-3 adapter
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The K126 Innershield Pro has stainless steel jacketed
goosenecks for extended life. The goosenecks are
similar in structure to a MI gun gooseneck. A cop-
per tube is used for the conductor and a stainless
steel tube is used for the outer jacketing, while a
Teflon tube acts as an insulator between the copper
and steel. The replaceable spring liner extends
through the gooseneck, so that the wire is continuous-
ly supported throughout the gun.
The K126 Innershield Pro gun utilizes a replaceable
connector assembly at the feeder end of the gun so
that the gun can be easily used with any feeder.
These connectors are the same K466/K613 kits used
with the Magnum MI gun product line.
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• FCAW-SS
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• This gun can only be used with self-shielded wires.
The design will not support the use of shielding gas.
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• The K126 Pro will not operate with the LN23P feed-
er.
• The K126 Pro does not support the 83% reduced
feed speed switch for pipe welding.
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10 ft .072 (1.9) KP2745-072R
K126-10 (3.0) 3/32 (2.4) KP2745-332R KP2908-1 KP2907-1 KP45H-322-15 KP2906-62 K613-3
15 ft .072 (1.9) KP2745-072R
K126-11 (4.5) 3/32 (2.4) KP2745-332R KP2908-1 KP2907-1 KP45H-322-15 KP2906-62 K613-3
15 ft .072 (1.9) KP2745-072R
K126-12 (4.5) 5/64 (2.0) KP2745-564R KP2908-1 KP2907-1 KP44-564-15 KP2906-62 K466-1
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------------------------------------------------------------------------
The K126 Innershield Pro gun and cable assemblies
have been designed specification for welding with mild
steel FCAW-S (self-shielded flux cored) processes.
The K126 Pro product is designed for extended life
and improved wire feeding in heavy duty welding
applications.
The K126 Innershield Pro products use a cable with a
core made from flat wound spring steel. The copper
conductors which transmit welding current are
wrapped around the spring core. Four #20 insulated
leads are wrapped along with the copper conductors
for use in the gun trigger circuit. The cable jacketing
is made from a cross linked polymer which provides
exceptional heat resistance and fatigue life.
A round wound spring steel liner is then placed inside
the spring core of the cable to contain the wire while it
is being transported to the welding arc. This liner is
replaceable so that it can be sized correctly for the
welding wire being used, and it can be removed and
replaced with a new liner as it wears out. Both of
these features improve the feeding of the wire through
the gun.
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The #BE# will connect to any wire
feeder with a Lincoln style gun receiver bushing (i.e.
LN-8, LN-9, LN-25 or any feeder with a K1500-1
bushing installed). (See Figure A.1)
1. Check that the drive roll(s) and feeder guide
tubes are appropriate for the electrode size
being used.
2. Fully push the brass connector end of the gun
cable into the conductor block on the outgoing
side of the feeder wire drive. Secure the cable
using the hand screw or set screw in the con-
ductor block.
3. Insert the round connector of the control cable
into the mating connector on the front of the
wire feeder.
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The # gun and cable assembly will connect
easily to any properly adapted feeder.
1. Check that the adapter and feeder outgoing
guide, as well as the drive roll, are appropriate
for the electrode size being used. On Lincoln
feeders, check that the K1500-2 gun adapter is
in place.
2. Fully push the brass connector end of the gun
cable into the brass adapter on the outgoing side
of the feeder wire drive. Secure the cable using
the hand screw or set screw in the adapter.
3. Insert the round connector of the control cable
into the mating connector on the front of the wire
feeder.
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Prepare gun and determine correct connector kit
1. Determine which K466 or K613 kit is required for
your system using (Tables A.1 and A.2) in the
front part of the Installation Section.
2. Remove the insulator, tip holder and gun control
cable.
3. Lay gun and cable out straight on a flat surface.
4. Loosen set screw located in the brass cable con-
nector at the wire feeder end of the cable using
the 5/64 (2.0 mm) Allen wrench. Pull liner out of
cable.
5. Remove the brass cable connector from the
feeder end of the gun using the wrench provided.
6. Install the new connector kit using the appropri-
ate procedure which follows.
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1. Remove brass cable connector (see Figure A.2)
from the kit and screw it on to the feeder end of
the gun cable. Tighten the connection with the
wrench provided.
2. Attach the round connector of the gun control
cable provided to the trigger connector on the
front of the Miller feeder.
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1. Remove brass cable connector (see Figure A.2)
from the K466-4 kit and screw it on to the feeder
end of the gun cable. Tighten the connector
with the wrench provided.
2. Attach the phone plug connector of the gun con-
trol cable provided to the trigger connector on
the front of the Hobart feeder.
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1. Remove brass cable connector (see Figure A.2)
from the K466-5 kit and screw it onto the feeder
end of the gun cable. Tighten the connection
with the wrench provided.
2. For L-Tec machines that require trigger lead
connections to be made at a terminal strip locat-
ed within the machine (L-Tec 225), a gun con-
trol cable with forked terminals is provided.
Connect the terminated leads to the terminal
strip. For a machine that requires a twist-lock
gun control cable connection, continue to use
the L-Tec gun control cable provided with the L-
Tec wire feeder connector assembly. Connect
the twist-lock plug to the proper receptacle on
the machine.
# # 4A7 # !AFG4??4G<BA
/<E8@4G<6 B54EG+8E<8F 8878EF+(,
,LC84A7(BJ8E%!
1. Remove brass cable connector (see Figure A.2)
from the connector kit and screw it onto the feeder
end of the gun cable. Tighten the connection with
the wrench provided.
2. Attach the gun control cable provided to the trigger
connector on the wire feeder.
##!AFG4??4G<BA,J86B6B@C4G<5?8
98878EF
1. Remove brass cable connector from the kit and
screw it onto the feeder end of the gun cable.
Tighten the connection with the wrench provid-
ed.
2. For K613-7, attach the round connector of the
gun control cable provided to the trigger con-
nector on the front of the Lincoln feeder.
#!AFG4??4G<BA$<A6B?A8878EFT7<4@
8G8EJ<E8
1. Remove brass cable connector and insulation
tube from the kit. Slide the insulation tube onto
the connector from the threaded end and screw
it onto the feeder end of the gun cable. Tighten
the connection with the wrench provided.
GUNHANDLE
CABLE
SHIELDCLAMPINGSCREWS
GUNTUBE
TIPHOLDER
TIP
INSULATOR
INSULATIONTUBE
(K466-1ONLY)
FEEDEREND
CABLEHANDLE
BRASSCABLE
CONNECTOR
MOLDEDGAS
PLUG
SETSCREW
LINERASSEMBLY(LINERBUSHINGTOBESEATED
TIGHTAGAINSTBRASSCABLECONNECTOR
GUN HANDLE
CABLE
SHIELD CLAMPING SCREWS
GUN TUBE
TIP HOLDER
TIP
INSULATOR
INSULATION TUBE
(K466-1 ONLY)
FEEDER END
CABLE HANDLE
BRASS CABLE
CONNECTOR
MOLDED GAS
PLUG
SET SCREW
LINER ASSEMBLY (LINER BUSHING TO BE SEATED
TIGHT AGAINST BRASS CABLE CONNECTOR
!-* 


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##&#!&&*+ !$R(*'

2. Attach the round connector of the gun control
cable provided to the trigger connector on the
front of the Lincoln Feeder.
!AFG4??4A7,E<@G;845?8$<A8E
Installation of (KP44 and KP45 series liners)
1. Lay the gun and cable out straight on a flat sur-
face.
2. Make sure that the set screw in the connector
end is backed out so as not to damage liner or
liner bushing. Remove and save the tip holder,
contact tip and insulator from the end of the gun
tube assembly.
3. Insert a new untrimmed liner into the connector
end of the cable. Be sure the liner bushing is
stenciled appropriately for the wire size being
used.
4. Be sure to fully seat the liner bushing in the con-
nector and:
For all connector kits except K466-3, K466-4 and
K613-3, tighten the set screw in the cable connector.
'*
For K466-3, K466-4 and K613-3, screw in the con-
nector cap provided in the kit until it seats on the
face of the bushing. Then insert the appropriate
piece of liner material into the connector cap and
tighten the set screw. Three pieces of liner material
are included in these connector kits to help guide the
electrode through the connector cap. The piece with
the smallest inner diameter is designed for .045" (1.2
mm) maximum diameter electrode and the other lin-
ers fit the following wires (maximum size) in order of
increasing inside diameter: 1/16” (1.6 mm), 5/64”
(2.0 mm), 3/32” (2.4 mm) and 1/8” (3.2 mm).
&', ,;8@4K<@H@J<E8F<M89BE4#4A7
#<FT  ,;8E89BE8 G;8 T 4A7
T?<A8EF4E8ABG<A6?H787J<G;G;8F8
><GF
5. Be sure the cable is straight and then trim the
liner flush with the end of the gun tube.
6. Remove the gun tube and trim an additional
9/16” (12.7 mm) of material from the end of the
liner (a 9/16” gage is included on the wrench
supplied with the gun).
7. Replace the gun tube and tighten the clamping
screw to secure it.
8. Reassemble the tip holder, insulator, and con-
tact tip onto the end of the gun tube.
'&&,-&+,'/!**
BAA86G<BAGB%<??8E8878EF
Using the un and cable assemblies which were
assembled with a K466-3 or K613-3 connection kit in
the beginning of this Installation Section will connect
easily to a variety of popular Miller wire feeders.
1. Check that the gun liner, connector cap liner,
and drive rolls are appropriate for the electrode
size being used.
2. Fully push the brass connector end of the gun
and cable into the connector receptacle on the
outgoing side of the feeder wire drive. Tighten
the hand screw to clamp down on the connec-
tor.
3. Insert the control cable plug from the feeder trig-
ger circuit into the mating socket on the gun
cable feeder end handle.
BAA86G<BAGB B54EG8878EF
Using the un and cable assemblies which were
assembled with a K466-4 connection kit in the begin-
ning of this Installation Section will connect easily to a
variety of Hobart wire feeders.
1. Check that the gun liner, connector cap liner,
and drive rolls are appropriate for the electrode
size being used.
2. Fully push the brass connector end of the gun
and cable into the connector receptacle on the
outgoing side of the feeder wire drive. Tighten
the hand screw to clamp down on the connec-
tor.
3. Insert the control cable plug from the feeder trig-
ger circuit into the mating socket on the gun
cable feeder end handle.
BAA86G<BAGB$,8674CG878878EF
Using the un and cable assemblies which were
assembled with a K466-5 connection kit in the begin-
ning of this Installation Section will connect easily to
an L-Tec feeder equipped with an L-Tec feeder con-
nector assembly.
1. Check that the adapter and feeder outgoing
guide as well as the drive roll, are appropriate
for the electrode size being used.


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
2. Fully push the brass connector end of the gun
cable into the brass adapter on the outgoing
side of the feeder wire drive. Secure the cable
using the hand screw, set screw, or pin.
3. Insert the control cable plug from the feeder trig-
ger circuit into the mating socket on the gun
cable feeder end handle. For machines with a
twist-lock trigger lead receptacle, if the L-Tec
gun control cable does not easily connect with
the socket, the gun control cable that came with
the K466-5 kit can be used. To do this, cut off
the gun control leads as close to the forked ter-
minals as possible and skin back the leads
7/16" (11 mm). Remove the twist-lock plug from
the L-Tec control cable and connect it to the
K466-5 cable. Make sure the outer jacket of the
connector is caught within the plug's strain
relief.
BAA86G<BAGB$<A6B?A/<E8@4G<6(BJ8E%!
B54EG+8E<8F8878EFBE+(,,LC8
8878EF
un cable assemblies which were assembled with a
K466-6, K466-7 or K466-9 Connection Kit in the
beginning of this Installation Section will connect eas-
ily to a feeder.
1. Check that the adapter and feeder outgoing
guide, as well as the drive rolls, are appropriate
for the electrode size being used.
2. Fully push the brass connector end of the gun
cable into the outgoing side of the feeder wire
drive. Secure the cable using the hand screw
on the wire feeder.
3. Insert the control cable plug from the feeder trig-
ger circuit into the mating socket on the gun
cable feeder end handle.
BAA86G<BAGB4,J86B474CG8798878E
1. Check that the drive roll(s) and feeder guide
tubes are appropriate for the electrode size
being used.
2. Fully push the brass connector end of the gun
cable into the conductor block on the outgoing
side of the feeder wire drive. Secure the cable
using the hand screw or set screw in the con-
ductor block.
3. Insert the round connector of the control cable
into the mating connector on the front of the
wire feeder.
BAA86G<BAGB4$<A6B?A98878E9BET7<4@8G8E
J<E8
1. Check that the drive roll(s) and feeder guide
tubes are appropriate for the electrode size
being used.
2. Fully push the brass connector end of the gun
cable into the conductor block on the outgoing
side of the feeder wire drive. Secure the cable
using the hand screw or set screw in the con-
ductor block.
3. Insert the round connector of the control cable
into the mating connector on the front of the
wire feeder.


'(*,!'&

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$,*'+&)-!(%&,
The K126 Innershield Pro gun has been designed for
use with Lincoln Innershield brand self-shielded cored
wire electrodes. Refer to the appropriate Lincoln
Process and Procedure uidelines for the electrode
used for information on recommended electrical and
visible stick outs.
%#!&/$
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GBHF88L8;8474A75B7LCEBG86G<BA
$,*!+ '#64A><??
Q BABGGBH6;8?86GE<64??L?<I8C4EGF
FH6;4FBHGCHGG8E@<A4?FBE<AG8E
A4?J<E<A:
Q !AFH?4G8LBHEF8?99EB@G;8JBE>4A7
:EBHA7
Q ?J4LFJ84E7EL<AFH?4G<A::?BI8F
------------------------------------------------------------------------
-%+&++64A5874A:8E
BHF
Q #88CLBHE;847BHGB99H@8F
Q -F8I8AG<?4G<BABE8K;4HFGGB
E8@BI89H@8F9EB@5E84G;<A:MBA8
------------------------------------------------------------------------
/$!&+(*#+64A64HF89<E8BE
8KC?BF<BA
Q #88C9?4@@45?8@4G8E<4?4J4L
------------------------------------------------------------------------
*V*1+64A5HEA
Q /84E8L884E4A75B7LCEBG86G<BA
------------------------------------------------------------------------
'A?LDH4?<9<87C8EFBAA8?F;BH?7BC8E4G8G;<F
8DH<C@8AG
1. Check that the welding power source is on.
2. Position electrode over joint. End of the electrode
should be slightly off the work.
3. Lower welding helmet, close gun trigger, and begin
welding. Hold the gun so the contact tip to work
distance gives the correct electrical stick out as
required for the procedure being used.
4. To stop welding, release the gun trigger and then
pull the gun away from the work after the arc goes
out.
.'!!&/!*!&
(*'$%+
Wire feeding problems can be avoided by observing the
following gun handling procedures:
1. Do not kink or pull cable around sharp corners.
2. Keep the electrode cable as straight as possible
when welding or loading electrode through cable.
3. Avoid wrapping excess cable around handle or
front of wire feeder.
4. Do not allow dolly wheels or trucks to run over
cables.
5. Keep cable clean by following maintenance instruc-
tions.
6. Use only clean, rust-free electrode. The Lincoln
electrodes have proper surface lubrication.
7. Replace contact tip when the arc starts to become
unstable or the contact tip end is fused or
deformed.
/*&!&


++'*!+

/!**'&&,!'&#!,+
##&#!&&*+ !$R(*'
/<E88878E4G4 #<G&B9BEHA
%4AH946GHE8E
Lincoln Electric
Tweco Adapted
Miller
Hobart
ESAB
T7<4@8G8E
BEF@4??8EJ<E8
K466-1
K466-8
K466-10
K466-10
K466-6
K466-2
K613-2
K466-3
K466-4
K466-7
K466-5
T7<4@8G8E
J<E8
none
K613-6
none
none
none
none
K613-2
K613-3
K613-4
K613-5
none
%B78?
LN-7, LN-8, & LN-9 series; LN-25 (0.052 max.); LN-742
LN-7, LN-8, & LN-9 series; LN-25 (1/16 and larger); LN-742
LF-72, LN-74
Series 10 feeders; LN-15; PF-10M; PF-15M
Power MI & Wirematic series feeders
No. 2, 3, and 4 guns
No. 5 guns
Intellimatic, Side Kick, D-51A, Porta-MI , Millermatic 130,
300 & 35 S-42 L, S-52A & S-54A
Swing Arc –Dual & Single, S-22, S-32S, 52D, 54D, 54E,
60 & 70 series
Dualmatic 27/70, H3S, H4S, H6S
Mega-Conds 27, 44, 45, 70, 70S
2000 series; 17 Hefty
Digamig, EH1, 5 & 11, SEH-4 & 5, SWM11 & 11B, 12, 13,
23, 24, 25, 26, 35, VAM2


++'*!+

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-&'&+-%$(*,+
$!&*++%$1
K613-X un Connector Kit is Required for 3/32” wire.
/<E8<4@8G8E
0.035
0.045
0.052
1/16
0.068
0.072
5/64
3/32
$<A8E#(&B
KP44-3545-15
KP44-3545-15
KP44-116-15
KP44-116-15
KP44-564-15
KP44-564-15
KP44-564-15
KP45H-332-15
!&+-$,-!+, *(*',,'*
#(&H@58E
KP2907-1
KP1987-1
KP1995-1
KP2090-1
8F<E87+'
1.5" or less
1.50" to 2.00"
2.00" to 2.75"
2.75" or greater
#(&H@58E
KP2908-1
&BG8F
Magnum Pro Tip Holder
'&,,,!(+
/<E8<4@8G8E
0.035
0.045
0.052
1/16
0.068
0.072
5/64
3/32
C<868C46>
KP2745-035R
KP2745-045R
KP2745-052R
KP2745-116R
KP2745-072R
KP2745-072R
KP2745-564R
KP2745-332R
C<868C46>
KP2745-035R-B100
KP2745-045R-B100
KP2745-052R-B100
KP2745-116R-B100
KP2745-072R-B100
KP2745-072R-B100
KP2745-564R-B100
KP2745-332R-B100
#(&H@58EF
-&,-+
+G4<A?8FF+G88?"46>8G87
?4FF<6.4EA<F;87"46>8G<A:
,!( '$*+
#(&H@58E
KP2906-62
KP2906-62R
KP2906-30R
KP2906-30R-L
KP2906-30
KP2906-30-L
8A7A:?8
62°
62°
30°
30°
30°
30°
&BG8F
No reverse bend
With reverse bend
With reverse bend
With reverse bend, extended length
No reverse bend
No reverse bend, extended length
#(&H@58E
KP2927-62R
KP2927-30R-L
8A7A:?8
62°
30°
&BG8F
No reverse bend
With reverse bend


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&', ,;8@4K<@H@J<E8F<M89BE4#4A7#
<FT,;8E89BE8G;8T4A7T?<A8EF4E8ABG
<A6?H787J<G;G;8F8><GF
,;<F F6E8J F;BH?7 BA?L 58 :8AG?L G<:;G8A87
'I8EG<:;G8A<A:J<??FC?<GBE6B??4CF8G;8?<A8E4A764HF8
CBBEJ<E89887<A:
-------------------------------------------------------------------------------
5. Be sure the cable is straight and then trim the liner
flush with the end of the gun tube.
6. Remove the gun tube and trim an additional 9/16”
(12.7 mm) of material from the end of the liner (a 9/16”
gage is included on the wrench supplied with the gun).
7. Replace the gun tube and tighten the clamping screw
to secure it.
8. Reassemble the tip holder, insulator, and contact tip
onto the end of the gun tube.
-&,-+&&'22$+
1. Replace worn contact tips as required.
2. Remove spatter from from contact tip, tip holder, insu-
lator and gun tube after each 10 minutes of arc time or
as required.
3. To remove gun tube from gun, loosen socket-head
clamping screw in handle with 3/16" (4.8 mm) Allen
wrench.
4. Pull gun tube out from gun handle. To reinstall, insert
the gun tube, push in as far as possible, and retighten
clamping screw.
$$&!&
Clean cable liner after using approximately 150 (68 kg)
pounds of electrode. Remove the cable from the wire feed-
er and lay it out straight on the floor. Remove the contact tip
from the gun. Using an air hose and only partial pressure,
gently blow out the cable liner from the tip holder end.
QK68FF<I8CE8FFHE84GG;8FG4EG@4L64HF8G;87<EGGB
9BE@4C?H:
-------------------------------------------------------------------------------
Flex the cable over its entire length and again blow out the
cable. Repeat this procedure until no further dirt comes out.
-,!'&
-,!'&
GUNHANDLE
Liner
CABLE
TIPHOLDER
TIP
INSULATOR
FEEDEREND
CABLEHANDLE
BRASSCABLE
CONNECTOR
SETSCREW
LINERASSEMBLY(LINERBUSHINGTOBESEATED
TIGHTAGAINSTBRASSCABLECONNECTOR
LINERTRIM
LENGTH
9/16"(14.3mm)
GUN HANDLE
Liner
CABLE
TIP HOLDER
TIP
INSULATOR
FEEDER END
CABLE HANDLE
BRASS CABLE
CONNECTOR
SET SCREW
LINER ASSEMBLY (LINER BUSHING TO BE SEATED
TIGHT AGAINST BRASS CABLE CONNECTOR
LINERTRIM
LENGTH
9/16"(14.3mm)
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&', The variation in cable lengths prevents the inter-
changeability of liners. Once a liner has been cut for a par-
ticular gun, it should not be installed in another gun, unless
it can meet the liner cut off length requirement. Liners are
shipped with the jacket of the liner extended the proper
amount.
1. Remove the insulator and tip holder.
2. Lay the gun and cable straight on a flat surface.
For all connectors except K466-3, K466-4 and K613-3:
Loosen set screw located in the brass cable connector at
the wire feeder end of the cable using the same 5/64 (2.0
mm) Allen wrench. Pull liner out of cable.
'*
For K466-3, K466-4 and K613-3 connectors:
Remove the connector cap with the wrench provided.
Pull liner out of cable. If the liner is going to be replaced
with a different size liner, loosen set screw on the con-
nector cap and remove piece of liner material.
3. Insert a new untrimmed liner into the connector end of
the cable. Be sure the liner bushing is stenciled
appropriately for the wire size being used.
4. Be sure to fully seat the liner bushing in the connector
and:
For all connector kits except K466-3, K466-4 and K613-
3, tighten the set screw in the cable connector.
'*
For K466-3, K466-4 and K613-3, screw in the connector
cap provided in the kit until it seats on the face of the
bushing. Then insert the appropriate piece of liner mate-
rial into the connector cap and tighten the set screw.
Three pieces of liner material are included in these con-
nector kits to help guide the electrode through the con-
nector cap. The piece with the smallest inner diameter is
designed for .045" (1.2 mm) maximum diameter elec-
trode and the other liners fit the following wires (maxi-
mum size) in order of increasing inside diameter: 1/16”
(1.6 mm), 5/64” (2.0 mm), 3/32” (2.4 mm) and 1/8” (3.2
mm).

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If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact your
$B64?$<A6B?AHG;BE<M87<8?7+8EI<6846<?<GL for technical troubleshooting assistance before you proceed.
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This Troubleshooting uide is provided to
help you locate and repair possible machine
malfunctions. Simply follow the three-step
procedure listed below.
Step 1. LOCATE PROBLEM (SYMPTOM).
Look under the column labeled “PROBLEM
(SYMPTOMS)”. This column describes
possible symptoms that the machine may
exhibit. Find the listing that best describes
the symptom that the machine is exhibiting.
Step 2. POSSIBLE CAUSE.
The second column labeled “POSSIBLE
CAUSE” lists the obvious external possibili-
ties that may contribute to the machine
symptom.
Step 3. RECOMMENDED COURSE OF
ACTION
This column provides a course of action for
the Possible Cause, generally it states to
contact you local Lincoln Authorized Field
Service Facility.
If you do not understand or are unable to
perform the Recommended Course of
Action safely, contact you local Lincoln
Authorized Field Service Facility.
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Service and Repair should only be performed by Lincoln Electric Factory Trained Personnel.
Unauthorized repairs performed on this equipment may result in danger to the technician and
machine operator and will invalidate your factory warranty. For your safety and to avoid
Electrical Shock, please observe all safety notes and precautions detailed throughout this
manual.
__________________________________________________________________________
/*&!&

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Observe all Safety uidelines detailed throughout this manual
If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact your
$B64?$<A6B?AHG;BE<M87<8?7+8EI<6846<?<GL for technical troubleshooting assistance before you proceed.
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No wire feed occurs when trigger is
pulled.
Sluggish wire feed when trigger is
pulled.
1. Machine is switched off or
unplugged.
2. Out of wire
3. Contact tip burnback.
4. Fully or partially blocked gun
liner.
5. Bird nest
6. Defective trigger (contacts open
or dirty).
7. Defective trigger circuit in gun.
8. No motor voltage or current from
machine.
9. Contact tip size too small for wire
diameter used.
1. Drive roll is worn or galled.
2. Machine’s wire feed speed set-
ting is too low.
3. Wire is obstructed somewhere
along the wire feed path in the
gun.
4. Low motor voltage.
5. un cable is coiled/kinked.
6. Mechanical resistance to wire
feeding is too large
1. Switch on or plug in machine.
2. Install full spool of specified wire.
3. Replace contact tip.
4. Remove and clean or replace gun
liner .
5. Cut out bird nest, reload wire, and
check for proper wire alignment.
6. Replace trigger assembly.
7. Disconnect gun from machine
and check trigger circuit for conti-
nuity.
8. See Troubleshooting section in
welding machine’s or wire feed-
er’s instruction manual.
9. Replace contact tip with one that
is the correct size.
1. Clean drive roll or replace drive
roll.
2. Increase wire feed speed.
3. Check for obstructions: Remove
any wire shavings; remove kinked
wire; remove and clean or
replace gun liner.
4. See Troubleshooting section in
welding machine’s instruction
manual.
5. Remove all sharp curves from gun
cable while welding.
6. If using a reverse bend gun tube,
try welding with a non reverse
bend product.