im901-a ln-25 pro january, 2010 - lincoln electric...6.a. remove fire hazards from the welding area....

OPERATORʼS MANUAL

• Sales and Service through Subsidiaries and Distributors Worldwide •

Cleveland, Ohio 44117-1199 U.S.A. TEL: 216.481.8100 FAX: 216.486.1751 WEB SITE: www.lincolnelectric.com

• World's Leader in Welding and Cutting Products •

Copyright © Lincoln Global Inc.

LN-25™ PROIM901-A

January, 2010

For use with machines having Code Number: 11387, 11388, 11507, 11508

Safety Depends on YouLincoln arc welding and cuttingequipment is designed and built withsafety in mind. However, your overallsafety can be increased by properinstallation ... and thoughtful opera-t ion on your part. DO NOTINSTALL, OPERATE OR REPAIRTHIS EQUIPMENT WITHOUTREADING THIS MANUAL ANDTHE SAFETY PRECAUTIONSCONTAINED THROUGHOUT .And, most importantly, think beforeyou act and be careful.

IP23

IEC 60974-5

FOR ENGINEpowered equipment.

1.a. Turn the engine off before troubleshooting and maintenancework 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 beforerefueling to prevent spilled fuel from vaporiz-ing on contact with hot engine parts andigniting. Do not spill fuel when filling tank. Iffuel is spilled, wipe it up and do not startengine 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 andtools away from V-belts, gears, fans and all other movingparts when starting, operating or repairing equipment.

____________________________________________________

1.e. In some cases it may be necessary to remove safetyguards to perform required maintenance. Removeguards only when necessary and replace them when themaintenance requiring their removal is complete.Always use the greatest care when working near movingparts.

___________________________________________________1.f. Do not put your hands near the engine fan.

Do not attempt to override the governor oridler by pushing on the throttle control rodswhile the engine is running.

___________________________________________________1.g. To prevent accidentally starting gasoline engines while

turning the engine or welding generator during maintenancework, disconnect the spark plug wires, distributor cap ormagneto wire as appropriate.

iSAFETYi

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 youpurchase a copy of “Safety in Welding & Cutting - ANSI Standard Z49.1” from the American Welding Society, P.O. Box351040, Miami, Florida 33135 or CSA Standard W117.2-1974. A Free copy of “Arc Welding Safety” booklet E205 is availablefrom the Lincoln Electric Company, 22801 St. Clair Avenue, Cleveland, Ohio 44117-1199.

BE SURE THAT ALL INSTALLATION, OPERATION, MAINTENANCE AND REPAIR PROCEDURES AREPERFORMED ONLY BY QUALIFIED INDIVIDUALS.

WARNING

ELECTRIC AND MAGNETIC FIELDSmay be dangerous

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, andwelders having a pacemaker should consult their physicianbefore welding.

2.c. Exposure to EMF fields in welding may have other healtheffects which are now not known.

2.d. All welders should use the following procedures in order tominimize exposure to EMF fields from the welding circuit:

2.d.1. Route the electrode and work cables together - Securethem 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 andwork 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 aspossible to the area being welded.

2.d.5. Do not work next to welding power source.

1.h. To avoid scalding, do not remove theradiator pressure cap when the engine ishot.

CALIFORNIA PROPOSITION 65 WARNINGS

Diesel engine exhaust and some of its constituentsare known to the State of California to cause can-cer, birth defects, and other reproductive harm.

The engine exhaust from this product containschemicals known to the State of California to causecancer, birth defects, or other reproductive harm.

The Above For Diesel Engines The Above For Gasoline Engines

iiSAFETYii

ARC RAYS can burn.4.a. Use a shield with the proper filter and cover

plates to protect your eyes from sparks andthe rays of the arc when welding or observingopen arc welding. Headshield and filter lensshould conform to ANSI Z87. I standards.

4.b. Use suitable clothing made from durable flame-resistantmaterial to protect your skin and that of your helpers fromthe arc rays.

4.c. Protect other nearby personnel with suitable, non-flammablescreening and/or warn them not to watch the arc nor exposethemselves to the arc rays or to hot spatter or metal.

ELECTRIC SHOCK cankill.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 bareskin 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 fullarea of physical contact with work and ground.

In addition to the normal safety precautions, if weldingmust be performed under electrically hazardousconditions (in damp locations or while wearing wetclothing; on metal structures such as floors, gratings orscaffolds; when in cramped positions such as sitting,kneeling or lying, if there is a high risk of unavoidable oraccidental contact with the workpiece or ground) usethe 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 semiautomaticwelding gun are also electrically “hot”.

3.d. Always be sure the work cable makes a good electricalconnection with the metal being welded. The connectionshould 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 andwelding machine in good, safe operating condition. Replacedamaged insulation.

3.g. Never dip the electrode in water for cooling.

3.h. Never simultaneously touch electrically “hot” parts ofelectrode holders connected to two welders because voltagebetween the two can be the total of the open circuit voltageof both welders.

3.i. When working above floor level, use a safety belt to protectyourself from a fall should you get a shock.

3.j. Also see Items 6.c. and 8.

FUMES AND GASEScan be dangerous.5.a. Welding may produce fumes and gases

hazardous to health. Avoid breathing thesefumes and gases. When welding, keepyour head out of the fume. Use enoughventilation and/or exhaust at the arc to keep

fumes and gases away from the breathing zone. Whenwelding with electrodes which require specialventilation such as stainless or hard facing (seeinstructions on container or MSDS) or on lead orcadmium plated steel and other metals or coatingswhich produce highly toxic fumes, keep exposure aslow as possible and within applicable OSHA PEL and ACGIH TLV limits using local exhaust or mechanicalventilation. In confined spaces or in some circum-stances, outdoors, a respirator may be required.Additional precautions are also required when weldingon galvanized steel.

5. b. The operation of welding fume control equipment is affectedby various factors including proper use and positioning ofthe equipment, maintenance of the equipment and the spe-cific welding procedure and application involved. Workerexposure level should be checked upon installation andperiodically thereafter to be certain it is within applicableOSHA PEL and ACGIH TLV limits.

5.c. Do not weld in locations near chlorinated hydrocarbon vaporscoming from degreasing, cleaning or spraying operations.The heat and rays of the arc can react with solvent vapors toform phosgene, a highly toxic gas, and other irritating prod-ucts.

5.d. Shielding gases used for arc welding can displace air andcause 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 thisequipment and the consumables to be used, including thematerial safety data sheet (MSDS) and follow youremployer’s safety practices. MSDS forms are available fromyour welding distributor or from the manufacturer.

5.f. Also see item 1.b.

iiiSAFETYiii

FOR ELECTRICALLYpowered equipment.

8.a. Turn off input power using the disconnectswitch at the fuse box before working onthe equipment.

8.b. Install equipment in accordance with the U.S. NationalElectrical Code, all local codes and the manufacturer’srecommendations.

8.c. Ground the equipment in accordance with the U.S. NationalElectrical Code and the manufacturer’s recommendations.

CYLINDER may explodeif damaged.7.a. Use only compressed gas cylinders

containing the correct shielding gas for theprocess used and properly operatingregulators designed for the gas and

pressure used. All hoses, fittings, etc. should be suitable forthe application and maintained in good condition.

7.b. Always keep cylinders in an upright position securelychained to an undercarriage or fixed support.

7.c. Cylinders should be located:• Away from areas where they may be struck or subjected tophysical damage.

• A safe distance from arc welding or cutting operations andany other source of heat, sparks, or flame.

7.d. Never allow the electrode, electrode holder or any otherelectrically “hot” parts to touch a cylinder.

7.e. Keep your head and face away from the cylinder valve outletwhen opening the cylinder valve.

7.f. Valve protection caps should always be in place and handtight except when the cylinder is in use or connected foruse.

7.g. Read and follow the instructions on compressed gascylinders, associated equipment, and CGA publication P-l,“Precautions for Safe Handling of Compressed Gases inCylinders,” available from the Compressed Gas Association1235 Jefferson Davis Highway, Arlington, VA 22202.

WELDING and CUTTINGSPARKS cancause fire or explosion.6.a. Remove fire hazards from the welding area.

If this is not possible, cover them to preventthe welding sparks from starting a fire.

Remember that welding sparks and hotmaterials from welding can easily go through small cracksand openings to adjacent areas. Avoid welding nearhydraulic 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 hazardoussituations. Refer to “Safety in Welding and Cutting” (ANSIStandard Z49.1) and the operating information for theequipment being used.

6.c. When not welding, make certain no part of the electrodecircuit is touching the work or ground. Accidental contactcan cause overheating and create a fire hazard.

6.d. Do not heat, cut or weld tanks, drums or containers until theproper steps have been taken to insure that such procedureswill not cause flammable or toxic vapors from substancesinside. They can cause an explosion even though they havebeen “cleaned”. For information, purchase “RecommendedSafe Practices for the Preparation for Welding and Cutting ofContainers and Piping That Have Held HazardousSubstances”, AWS F4.1 from the American Welding Society(see address above).

6.e. Vent hollow castings or containers before heating, cutting orwelding. They may explode.

6.f. Sparks and spatter are thrown from the welding arc. Wear oilfree protective garments such as leather gloves, heavy shirt,cuffless trousers, high shoes and a cap over your hair. Wearear plugs when welding out of position or in confined places.Always wear safety glasses with side shields when in awelding area.

6.g. Connect the work cable to the work as close to the weldingarea as practical. Work cables connected to the buildingframework or other locations away from the welding areaincrease the possibility of the welding current passingthrough lifting chains, crane cables or other alternate cir-cuits. This can create fire hazards or overheat lifting chainsor cables until they fail.

6.h. Also see item 1.c.

6.I. Read and follow NFPA 51B “ Standard for Fire PreventionDuring Welding, Cutting and Other Hot Work”, availablefrom NFPA, 1 Batterymarch Park, PO box 9101, Quincy, Ma022690-9101.

6.j. Do not use a welding power source for pipe thawing.

Refer to http://www.lincolnelectric.com/safety for additional safety information.

ivSAFETYiv

PRÉCAUTIONS DE SÛRETÉPour votre propre protection lire et observer toutes les instructionset les précautions de sûreté specifiques qui parraissent dans cemanuel aussi bien que les précautions de sûreté générales suiv-antes:

Sûreté Pour Soudage A LʼArc1. Protegez-vous contre la secousse électrique:

a. Les circuits à lʼélectrode et à la piéce sont sous tensionquand la machine à souder est en marche. Eviter toujourstout contact entre les parties sous tension et la peau nueou les vétements mouillés. Porter des gants secs et sanstrous pour isoler les mains.

b. Faire trés attention de bien sʼisoler de la masse quand onsoude dans des endroits humides, ou sur un planchermetallique ou des grilles metalliques, principalement dans les positions assis ou couché pour lesquelles une grandepartie du corps peut être en contact avec la masse.

c. Maintenir le porte-électrode, la pince de masse, le câblede soudage et la machine à souder en bon et sûr étatdefonctionnement.

d.Ne jamais plonger le porte-électrode dans lʼeau pour lerefroidir.

e. Ne jamais toucher simultanément les parties sous tensiondes porte-électrodes connectés à deux machines à souderparce que la tension entre les deux pinces peut être letotal de la tension à vide des deux machines.

f. Si on utilise la machine à souder comme une source decourant pour soudage semi-automatique, ces precautionspour le porte-électrode sʼapplicuent aussi au pistolet desoudage.

2. Dans le cas de travail au dessus du niveau du sol, se protégercontre les chutes dans le cas ou on recoit un choc. Ne jamaisenrouler le câble-électrode autour de nʼimporte quelle partiedu corps.

3. Un coup dʼarc peut être plus sévère quʼun coup de soliel,donc:

a. Utiliser un bon masque avec un verre filtrant appropriéainsi quʼun verre blanc afin de se protéger les yeux du ray-onnement de lʼarc et des projections quand on soude ouquand on regarde lʼarc.

b. Porter des vêtements convenables afin de protéger lapeau de soudeur et des aides contre le rayonnement delʻarc.

c. Protéger lʼautre personnel travaillant à proximité ausoudage à lʼaide dʼécrans appropriés et non-inflammables.

4. Des gouttes de laitier en fusion sont émises de lʼarc desoudage. Se protéger avec des vêtements de protection libresde lʼhuile, 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 desoudage. Utiliser des lunettes avec écrans lateraux dans leszones où lʼon pique le laitier.

6. Eloigner les matériaux inflammables ou les recouvrir afin deprévenir tout risque dʼincendie dû aux étincelles.

7. Quand on ne soude pas, poser la pince à une endroit isolé dela masse. Un court-circuit accidental peut provoquer unéchauffement et un risque dʼincendie.

8. Sʼassurer que la masse est connectée le plus prés possiblede la zone de travail quʼil est pratique de le faire. Si on placela masse sur la charpente de la construction ou dʼautresendroits éloignés de la zone de travail, on augmente le risquede voir passer le courant de soudage par les chaines de lev-age, câbles de grue, ou autres circuits. Cela peut provoquerdes risques dʼincendie ou dʼechauffement des chaines et descâbles jusquʼà ce quʼils se rompent.

9. Assurer une ventilation suffisante dans la zone de soudage.Ceci est particuliérement important pour le soudage de tôlesgalvanisées plombées, ou cadmiées ou tout autre métal quiproduit des fumeés toxiques.

10. Ne pas souder en présence de vapeurs de chlore provenantdʼopérations de dégraissage, nettoyage ou pistolage. Lachaleur ou les rayons de lʼarc peuvent réagir avec les vapeursdu 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” CSAStandard W 117.2-1974.

PRÉCAUTIONS DE SÛRETÉ POURLES MACHINES À SOUDER ÀTRANSFORMATEUR ET ÀREDRESSEUR

1. Relier à la terre le chassis du poste conformement au code delʼélectricité et aux recommendations du fabricant. Le dispositifde montage ou la piece à souder doit être branché à unebonne mise à la terre.

2. Autant que possible, Iʼinstallation et lʼentretien du poste seronteffectués par un électricien qualifié.

3. Avant de faires des travaux à lʼinterieur de poste, la debranch-er à lʼinterrupteur à la boite de fusibles.

4. Garder tous les couvercles et dispositifs de sûreté à leurplace.

vv

Thank You for selecting a QUALITY product by Lincoln Electric. We want youto take pride in operating this Lincoln Electric Company product••• as much pride as we have in bringing this product to you!

Read this Operators Manual completely before attempting to use this equipment. Save this manual and keep ithandy 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:

WARNINGThis statement appears where the information must be followed exactly to avoid serious personal injury or loss of life.

This statement appears where the information must be followed to avoid minor personal injury or damage to this equipment.

CAUTION

Please Examine Carton and Equipment For Damage ImmediatelyWhen this equipment is shipped, title passes to the purchaser upon receipt by the carrier. Consequently, Claimsfor material damaged in shipment must be made by the purchaser against the transportation company at thetime the shipment is received.

Please record your equipment identification information below for future reference. This information can befound 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 youhave 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 packetaccompanying this machine and fax the form per the instructions printed on it.

• For On-Line Registration: Go to our WEB SITE at www.lincolnelectric.com. Choose “Quick Links” and then“Product Registration”. Please complete the form and submit your registration.

CUSTOMER ASSISTANCE POLICYThe 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 LincolnElectric 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 customerʼs particular purpose,with respect to such information or advice. As a matter of practical consideration, we also cannot assume any responsibility for updating orcorrecting any such information or advice once it has been given, nor does the provision of information or advice create, expand or alter anywarranty 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 controlof, and remains the sole responsibility of the customer. Many variables beyond the control of Lincoln Electric affect the results obtained inapplying 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.comfor any updated information.

vivi TABLE OF CONTENTSPage

––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––Installation.......................................................................................................................Section A

Technical Specifications.......................................................................................................A-1Safety Precautions ...............................................................................................................A-2Location................................................................................................................................A-2High Frequency Protection...................................................................................................A-2Weld cable Sizes..................................................................................................................A-2Cable Connections ...............................................................................................................A-3Shielding Gas Connection....................................................................................................A-3Wire Drive Configuration ......................................................................................................A-4

Changing The Gun Receiver Bushing................................................................................A-4Procedure to Install Drive Rolls and Wire Guides ..............................................................A-4

Pressure Arm Adjustment ....................................................................................................A-5Loading Spools of Wire ........................................................................................................A-5Gun Connections..................................................................................................................A-5Power Source to LN-25™ Pro Cable Connection Diagrams ..................................A-6 thru A-8

________________________________________________________________________________Operation.........................................................................................................................Section B

Safety Precautions ...............................................................................................................B-1Graphic Symbols that appear on this Machine or in this Manual .........................................B-1Definition of Welding Terms .................................................................................................B-2General Description..............................................................................................................B-2Recommended Processes, Equipment Limitations, Recommended Power Sources ..........B-2Case Front Controls ...............................................................................................B-3 thru B-5Internal Controls ...................................................................................................................B-6Internal Controls Decription..................................................................................................B-7Constant Current Wire Welding............................................................................................B-8Rear Controls .......................................................................................................................B-9Gas Purge Pushbutton .......................................................................................................B-10Flow Meter..........................................................................................................................B-10Power-Up Sequence ..........................................................................................................B-10

________________________________________________________________________________Accessories ....................................................................................................................Section C

Factory Installed Equipment.................................................................................................C-1Drive Roll Kits used..............................................................................................................C-1Accessories Used ..................................................................................................C-2 thru C-5Installation of Water Cooling Kit ...........................................................................................C-6

________________________________________________________________________________Maintenance....................................................................................................................Section D

Safety Precautions ...............................................................................................................D-1Routine Maintenance ...........................................................................................................D-1Periodic Maintenance...........................................................................................................D-1Calibration Specification................................................................................................D-1,D-2

________________________________________________________________________________Troubleshooting .............................................................................................................Section E

How to Use Troubleshooting Guide .....................................................................................E-1Digital Display Models Error Codes......................................................................................E-2Troubleshooting Guide .................................................................................................E-3, E-4

________________________________________________________________________________

Wiring Diagram & Dimension Prints .............................................................................Section F________________________________________________________________________________

Parts Pages ................................................................................................................P-557 Series_______________________________________________________________________________

A-1INSTALLATION A-1

LN-25™ PRO ACROSS THE ARC MODEL

TEMPERATURE RANGE

OPERATION: -40°F to 104°F (-40°C to 40°C)STORAGE: -40°F to 185°F (-40°C to 85°C)

INPUT VOLTAGE and CURRENT

TECHNICAL SPECIFICATIONS – LN-25™ PRO ACROSS THE ARC MODEL (K2613-1, K2613-2)

HEIGHT WIDTH DEPTH WEIGHT

14.8 Inches 8.7 Inches 22.2 Inches 36 lbs(376 mm) ( 221 mm) (589 mm) (16 kg)

Handle folded down

PHYSICAL DIMENSIONS

INPUT VOLTAGE ± 10%

15-110 VDC

INPUT AMPERES

4A

RATED OUTPUT @ 104°F (40°C)DUTY CYCLE

60% rating

100% rating

INPUT AMPERES

450

325

GEARING - WIRE FEED SPEED RANGE-WIRE SIZE

WFS RANGE

30 – 400 ipm(0.8 – 10.1m/min)

50 – 700 ipm(1.3 – 17.7m/min)

WFS RANGE

30 – 400 ipm(0.8 – 10.1m/min)

50 – 700 ipm(1.3 – 17.7m/min)

WIRE SIZES

.023 – 1/16"(0.6 – 1.6mm)

.023 – 1/16"(0.6 – 1.6mm)

WIRE SIZES

.030 - 3/32”(10.3 – 2.4mm)

.030 - 5/64(0.8 - 2.0mm)

GEARING

Extra torqueK2613-2

Standard SpeedK2613-1

GMAW FCAW

WELD CABLE SIZE

Table A.1 located below are copper cable sizes rec-ommended for different currents and duty cycles.Lengths stipulated are the distance from the welder towork and back to the welder again. Cable sizes areincreased for greater lengths primarily for the purposeof minimizing cable drop.

** Tabled values are for operation at ambient temperatures of 104°F(40°C) and below. Applications above 104°F(40°C) may require cableslarger than recommended, or cables rated higher than 167°F(75°C).

RECOMMENDED CABLE SIZES (RUBBER COVERED COPPER - RATED 167°F or 75°C)**CABLE SIZES FOR COMBINED LENGTHS OF ELECTRODE AND WORK CABLES

AMPERES

200200225225250250250250300325350400400500

PERCENTDUTY

CYCLE

6010020

40 & 3030406010060100606010060

0 to 50Ft.(0 to15m)

22

4 or 5332111

2/01/02/03/02/0

50 to 100Ft.(15 to 30m)

223332111

2/01/02/03/02/0

100 to 150 Ft.(30 to 46m)

222221111

2/02/02/03/03/0

150 to 200 Ft.(46 to 61m)

11111111

1/02/02/03/03/03/0

200 to 250 Ft.(61 to 76m)

1/01/01/01/01/01/01/01/02/03/03/04/04/04/0

TABLE A.1

A-2INSTALLATION


A-2

SAFETY PRECAUTIONS

ELECTRIC SHOCK CAN KILL.• Turn the input power OFF at the

disconnect switch or fuse boxbefore attempting to connect ordisconnect input power lines, out-put cables or control cables.

• Only qualified personnel shouldperform this installation.

• Do not touch metal portions of the work clipwhen the welding power source is on.

• Do not attach the work clip to the wire feeder.• Connect the work clip directly to the work, as

close as possible to the welding arc.• Turn power off at the welding power source

before disconnecting the work clip from thework.

• Only use on power sources with open circuitvoltages less than 110 VDC.

------------------------------------------------------------------------LOCATIONFor best wire feeding performance, place the LN-25™ PRO on a stable and dry surface. Keep thewire feeder in a vertical position. Do not operate thewire feeder on an angled surface of more than 15degrees.

Do not submerge the LN-25™ PRO.

The LN-25™ PRO is rated IP23 and is suitable foroutdoor use.

The handle of the LN-25™ PRO is intended formoving the wire feeder about the work place only.

When suspending a wire feeder, insulate thehanging device from the wire feeder enclosure.

HIGH FREQUENCY PROTECTION

Locate the LN-25™ PRO away from radio controlledmachinery. The normal operation of the LN-25™PRO may adversely affect the operation of RF con-trolled equipment, which may result in bodily injuryor damage to the equipment.----------------------------------------------------------------------------

WARNING

CAUTION

A-3INSTALLATION


A-3

SHIELDING GAS CONNECTION

CYLINDER may explode ifdamaged.

• Keep cylinder upright andchained to support.

• Keep cylinder away from areas where it may bedamaged.

• Never lift welder with cylinder attached.• Never allow welding electrode to touch cylinder.• Keep cylinder away from welding or other live

electrical circuits.• BUILD UP OF SHIELDING GAS MAY

HARM HEALTH OR KILL.• Shut off shielding gas supply when not

in use.• See American National Standard Z-49.1, "Safety

in Welding and Cutting” Published by theAmerican Welding Society.

----------------------------------------------------------------------------Maximum inlet pressure is 100 psi. (6.9 bar.)

Install the shielding gas supply as follows:

1. Secure the cylinder to prevent it from falling.2. Remove the cylinder cap. Inspect the cylinder valves

and regulator for damaged threads, dirt, dust, oil orgrease. Remove dust and dirt with a clean cloth. DONOT ATTACH THE REGULATOR IF OIL, GREASEOR DAMAGE IS PRESENT! Inform your gas supplierof this condition. Oil or grease in the presence of highpressure oxygen is explosive.

3. Stand to one side away from the outlet and open thecylinder valve for an instant. This blows away any dustor dirt which may have accumulated in the valve out-let.

4. Attach the flow regulator to the cylinder valve andtighten the union nut(s) securely with a wrench. Note:if connecting to 100% CO2 cylinder, insert regulatoradapter between regulator and cylinder valve. Ifadapter is equipped with a plastic washer, be sure it isseated for connection to the CO2 cylinder.

5. Attach one end of the inlet hose to the outlet fitting ofthe flow regulator. Attach the other end to the weldingsystem shielding gas inlet. Tighten the union nuts witha wrench.

6. Before opening the cylinder valve, turn the regulatoradjusting knob counterclockwise until the adjustingspring pressure is released.

7. Standing to one side, open the cylinder valve slowly afraction of a turn. When the cylinder pressure gagestops moving, open the valve fully.

8. The flow regulator is adjustable. Adjust it to the flowrate recommended for the procedure and processbeing used before making a weld.

WARNING

Pin

ABCDE

Wiring

TriggerNot usedCommonNot usedNot used

CABLE CONNECTIONS

There is one circular connector for the gun trigger onthe front of the LN-25™ PRO.

Function

5-pin triggerconnector for push-gunsonly.

AE

C B

D

A-4INSTALLATION


A-4

WIRE DRIVE CONFIGURATION(See Figure A.2)CHANGING THE GUN RECEIVERBUSHING

ELECTRIC SHOCK can kill.• Turn the input power OFF at the

welding power source before instal-lation or changing drive rolls and/orguides.

• Do not touch electrically live parts.• When inching with the gun trigger, electrode

and drive mechanism are "hot" to work andground and could remain energized several sec-onds after the gun trigger is released.

• Do not operate with covers, panels or guardsremoved or open.

• Only qualified personnel should perform mainte-nance work.

----------------------------------------------------------------------------Tools required:

• 1/4" hex key wrench.Note: Some gun bushings do not require the use of

the thumb screw.1. Turn power off at the welding power source.2. Remove the welding wire from the wire drive.3. Remove the thumb screw from the wire drive.4. Remove the welding gun from the wire drive.5. Loosen the socket head cap screw that holds the

connector bar against the gun bushing.Important: Do not attempt to completelyremove the socket head cap screw.

6. Remove the outer wire guide, and push the gunbushing out of the wire drive. Because of the pre-cision fit, light tapping may be required to removethe gun bushing.

7. Disconnect the shielding gas hose from the gunbushing, if required.

8. Connect the shielding gas hose to the new gunbushing, if required.

9. Rotate the gun bushing until the thumb screw holealigns with the thumb screw hole in the feed plate.Slide the gun receiver bushing into the wire driveand verify the thumb screw holes are aligned.

10. Tighten the socket head cap screw.11. Insert the welding gun into the gun bushing and

tighten the thumb screw.

GUN RECEIVER BUSHING

LOOSEN TIGHTEN

THUMB SCREW

OUTER WIRE GUIDE

SOCKET HEADCAP SCREW

CONNECTOR BLOCK

WARNING

PROCEDURE TO INSTALL DRIVE ROLLSAND WIRE GUIDES

• Turn the input power OFF at thewelding power source before instal-lation or changing drive rolls and/orguides.





------------------------------------------------------------------------1. Turn power off at the welding power source.2. Release the idle roll pressure arm.3. Remove the outer wire guide by turning the knurled

thumbscrews counter-clockwise to unscrew themfrom the feed plate.

4. Rotate the triangular lock and remove the driverolls.

5. Remove the inner wire guide.6. Insert the new inner wire guide, groove side out,

over the two locating pins in the feed plate.7. Install a drive roll on each hub assembly secure

with the triangular lock.8. Install the outer wire guide by aligning it with the

pins and tightening the knurled thumbscrews.9. Close the idle arm and engage the idle roll pressure

arm. Adjust the pressure appropriately.

WARNING

FIGURE A.2

THUMBSCREW

GUN

A-5INSTALLATION


A-5

PRESSURE ARM ADJUSTMENT

ELECTRIC SHOCK can kill.• Turn the input power OFF at the weld-

ing power source before installation orchanging drive rolls and/or guides.





----------------------------------------------------------------------------The pressure arm controls the amount of force thedrive rolls exert on the wire. Proper adjustment of thepressure arm gives the best welding performance.

Set the pressure arm as follows:(See Figure A.3)

Aluminum wires between 1 and 3Cored wires between 3 and 4Steel, Stainless wires between 4 and 6

LOADING SPOOLS OF WIRE

• Keep hands, hair, clothing and toolsaway from rotating equipment.

• Do not wear gloves when threading wireor changing wire spool.

• Only qualified personnel should install,use or service this equipment.

------------------------------------------------------------------------Loading 10 to 15 lb. (4.5 – 6.8kg) Spools.

A K468 spindle adapter is required for loading 2"(51mm) wide spools on 2" (51mm) spindles. Use aK468 spindle adapter for loading 2-1/2" (64mm) widespools.

1. Squeeze the release bar on the retaining collar andremove it from the spindle.

2. Place the spindle adapter on the spindle, aligningthe spindle brake pin with the hole in the adapter.

3. Place the spool on the spindle and align theadapter brake tab with one of the holes in the backside of the spool. An indicator mark on the end ofthe spindle shows the orientation of the brake tab.Be certain the wire feeds off of the spool in theproper direction.

4. Re-install the retaining collar. Make sure that therelease bar snaps out and that the retaining collarfully engages the groove on the spindle.

GUN CONNECTION

ELECTRIC SHOCK can kill.• Turn the input power OFF at the weld-

ing power source before installation orchanging drive rolls and/or guides.





----------------------------------------------------------------------------The LN-25™ PRO ACROSS THE ARC MODELcomes with a K1500-2 gun adapter installed. (SeeFigure A.4)

To install a gun,1. Turn power OFF.2. Remove the thumb screw.3. Push the gun the completely into the gun bushing.4. Secure the gun in place with the thumb screw.5. Connect the trigger cable from the gun to the trigger

connector on the front of the feeder.

Note: Not all gun bushings require the use of thethumb screw.

WARNING

WARNING

6

AlFe, CrNiFe, CrNi

ALUMINUM WIRESCORED WIRES

STEEL, STAINLESS WIRES

FIGURE A.3

WARNING

FIGURE A.4

A-6INSTALLATION


A-6

ACROSS THE ARC SET-UPS

CC Power Sources with Output Terminals AlwaysHot (See Figure A.5)

If the power source has a Remote/Local switch, placethe switch in the Local position.

Place the CV/CC switch in the feeder in the "CC" posi-tion.

CV Power Sources with Stud Connectors andRemote/Local Switch (See Figure A.6)

Place the power source Remote/Local switch in theLocal position.

Place CV/CC switch in the feeder in the "CV" position.

LN-25™ PRO

(Across the Arc)

CC Power Source

Ranger 250, 250 LPG

Ranger 305G, 305D

Commander 300

Vantage 300, 400, 500

Air Vantage 500

Ranger 10,000

Ranger 3 phase

SAE 400 with CV adapter

Engine Driven welder with Wire Feed Module

Work

Electrode

Work clip

Work clip

Work

ElectrodeCV-655DC-400DC-600DC-655V450-Pro

LN-25™ PRO(Across the Arc)

FIGURE A.5

FIGURE A.6

K#

K2613-1K2613-2

KP1695-XXKP1696-XXKP1697-XX

See Magnum Literature

K1803-1

Description

LN-25™ PRO LN-25™ PRO Extra Torque

Drive Roll Kit

Welding GunCC power SourceWelding Cables

POWER SOURCE TO LN-25™ PRO CABLE CONNECTION DIAGRAMS

K#

K2613-1K2613-2


See magnum Literature

K1803-1

Description


Drive Roll Kit

Welding GunCV power SourceWelding Cables

A-7INSTALLATION


A-7

CV Power Sources with Stud Connectors and noRemote/Local Switch. (See Figure A.7)


CV Power Source with Twist-Mate Connectors andRemote/Local Switch. (See Figure A.8)


Work clip

Work

Electrode

Jumper

LN-25™ PR0CV-400CV-655 (Across The Arc)

Work clip

Work

Electrode LN-25™ PRO(Across the Arc)V350-Pro

FIGURE A.7

FIGURE A.8

K#

K2613-1K2613-2KP484



K1803-1

Description


Jumper Plug Kit

Drive Roll Kit


K#

K2613-1K2613-2



K1841

Description


Drive Roll Kit


A-8INSTALLATION


A-8CV Power Source with Twist-Mate Connectors andno Remote/Local Switch. (See Figure A.9)


Work clip

Work

Electrode

Jumper

LN-25™ PROCV-250CV-300CV-305

FIGURE A.9

K#

K2613-1K2613-2



K1841-K484

Description


Drive Roll Kit

Welding GunCV power SourceWelding Cables Jumper Plug kit

B-1OPERATION


B-1

• ELECTRIC SHOCK CAN KILL.Unless using COLD FEED fea-ture, when feeding with gun trig-ger, the electrode and drivemechanism are always electri-cally energized and couldremain energized several sec-onds after the welding ceases..

• Do not touch electrically live part or electrodewith skin or wet clothing.

• Insulate yourself from work and ground.• Always wear dry insulating gloves.• Do not operate with covers, panels or guards

removed or open.-------------------------------------------------------------------------

• FUMES AND GASSES can bedangerous.

• Keep your head out of fumes.• Use ventilation or exhaust to

remove fumes from breathingzone.

-------------------------------------------------------------------------• WELDING SPARKS can cause

fire or explosion.• Keep flammable material away.

-------------------------------------------------------------------------ARC RAYS can burn.• Wear eye, ear and body protec-

tion.-------------------------------------------------------------------------SEE ADDITIONAL WARNING INFORMATIONUNDER ARC WELDING SAFETY PRECAUTIONSAND IN THE FRONT OF THIS OPERATING MAN-UAL.-------------------------------------------------------------------------

WARNING

SAFETY PRECAUTIONSREAD AND UNDERSTAND ENTIRE SECTIONBEFORE OPERATING MACHINE.

INPUT POWER

ON

OFF

WIRE FEEDER

POSITIVE OUTPUT

NEGATIVE OUTPUT

INPUT POWER

DIRECT CURRENT

OPEN CIRCUIT VOLTAGE

INPUT VOLTAGE

OUTPUT VOLTAGE

INPUT CURRENT

OUTPUT CURRENT

PROTECTIVEGROUND

WARNING ORCAUTION

U0

U1

U2

I1

I2

GRAPHIC SYMBOLS THAT APPEAR ONTHIS MACHINE OR IN THIS MANUAL

B-2OPERATIONB-2


DEFINITION OF WELDING TERMS

WFS• Wire Feed Speed

CC• Constant Current

CV• Constant Voltage

GMAW• Gas Metal Arc welding

SMAW• Shielded Metal Arc welding

FCAW• Flux Core Arc Welding

GENERAL DESCRIPTION

General Physical DescriptionThe LN-25™ PRO is specially engineered to be themost rugged portable wire feeder available.

Several models of the LN-25™ PRO are offered tobest meet individual welder needs. The Extra Torquemodel features additional torque gearing for reliablefeeding of large diameter FCAW wires. All of the mod-els include a gas solenoid and flow meter for the flexi-bility to run most wire processes.

The plastic case is molded from a high impact, flameretardant plastic for durability and low weight. Thepatent pending design keeps the internal componentsprotected and dry.

The heart of the LN-25™ PRO is the 2 roll MAX-TRAC™ drive. The patented features on the wiredrive offer tool-less changing of the drive rolls andwire guides for quick spool changes. A tachometercontrolled motor powers the patent pending drive rollsfor smooth, steady feeding without slippage.

With only one p.c. board, the LN-25™ PRO isdesigned to be simple, reliable and easy to service.The p.c. board is mounted with Lincolnʼs leading envi-ronmental design protection by mounting the board ina plastic tray and potting it with epoxy.

General Functional DescriptionThe LN-25™ PRO as designed is a simple, robustfeeder. Standard features include a calibrated wirefeed speed dial, 2 step/trigger interlock switch, CV-CCswitch, Gas Purge and Cold Feed.

RECOMMENDED PROCESSES• GMAW• FCAW

PROCESS LIMITATIONS

• GMAW-P procedures must be qualified by the cus-tomer.

• Across-the-Arc models are not recommended forstitch or spot welding.

EQUIPMENT LIMITATIONS• The duty cycle of the wire feeder is 325A, 100% and

450A, 60%. Duty cycle is based upon the amount ofwelding performed in a 10 minute period.

• The maximum spool size is 45 lb, 12" diameter.• Maximum FCAW gun length is 15 ft.• Maximum GMAW gun length is 25 ft. • Push-pull guns do not work with the wire feeder.• When using the digital meter kit, preset voltage is

accurate only with the following power sources:Invertec V-350 CV-305Invertec V-450 CV-400DC-400DC-600DC-655

RECOMMENDED POWER SOURCES

• CV-250• CV-300• CV-305• CV-400• CV-655• DC-400• DC-600• DC-655• Invertec V-350 PRO• Invertec V-450 PRO• Multi-Weld 350• Ranger 10,000

• Ranger 3 Phase• Ranger GXT• Ranger 250• Ranger 305• SAE-400• Pipeliner 200G• Classic 300• Vantage 300• Vantage 400• Vantage 500• Air Vantage 500

B-3OPERATIONB-3

1. ANALOG VOLTMETERThe analog voltmeter shows the voltage betweenelectrode and work. On across the arc models, thevoltmeter shows open circuit voltage when the wirefeeder is not welding. The voltmeter is polarityinsensitive and the range is 0 – 40VDC.

(See Customer Assistance Policy in the front of thisInstruction Manual)

CASE FRONT CONTROLS (See Figure B.1)

ITEM DESCRIPTION

1 Analog Voltmeter2 Wire Feed Speed Knob3 5-pin gun trigger connector4 Work sense lead5 Thermal LED, Motor Overload6 Polarity LED


1

5

2

6

3

4

FIGURE B.1

Maximum WFSStandard Spin

Gearing280340440520600

Maximum WFS(Extra Torque

Gearing)210235400400400

Minimum Arc Volts

15 V17 V21 V24 V27 V

B-4OPERATIONB-4

2. WIRE FEED SPEED KNOBThe large, calibrated wire feed speed knob makesfor easy and accurate adjustment of the wire feedspeed. The knob rotates 3/4 turn. Turn the knobclockwise to increase the wire feed speed, andcounter clockwise to reduce the wire feed speed.

Models with analog voltmeters have a calibratedscale printed around the wire feed speed knobusing "in/min" units. A separate decal with "m/min"units is included with these models wire feeder.

Wire Feed Speed, CV Operation

When Across the Arc models are operated with CVpower sources, the wire feed speed will remain a con-stant value, independent of arc voltage changes, asalong as the arc voltage does not drop below the val-ues per the following table.

Wire Feed Speed, CC Operation

When Across the Arc models are operated with CCpower sources, the wire feed speed changes as thearc voltage changes. When the arc voltage increases,the wire feed speed will increase; and when the arcvoltage decreases, the wire feed speed will decrease.

To preset the wire feed speed on CC power sources:

1. Set the Wire Feed Mode switch inside the LN-25™ Pro to "CC".

2. Refer to the Figure B.1a graph for the setting forthe wire feed speed knob setting. Select the hori-zontal line representing the Desired Wire FeedSpeed. (See Figure B.1a arrow for 375 in/min.)

3. Select the diagonal line representing the ArcVolts. (See Figure B.1a for 29 volts.)

4. Determine the vertical line representing the CCrepresenting the CC Wire Feed Speed settingwhere the above two lines cross. (See FigureB.1a arrow line for 450.) Set the LN-25™ Prowire feed speed knob to this value.

CC WFS dial setting = desired WFS x 35Arc Volts

Example:375 in/min. (Horizontal Line) x 3529 Arc Volts (Diagonal Line)

= 452.5 (Vertical Line)(See Figure B.1a)


50100150in/min. 200250300350375400450500550600650700

50 100 150 200 250 300 350 400 450 500 550 650 700

35312927252321191715

33

600

ARC VOLTS

CC

50

100

150

in/m

in.

200

250

300

350375400

450

500

550

600

650

700

50 100 150 200 250 300 350 400 450 500 550 650 700

35

31

29

27

25

23

21

19

17

15

33

600

ARC VOLTS

CC

FIGURE B.1a

CV OPERATION

A constant voltage (CV) powersource is recommended for flux-cored arc welding. (FCAW) andgas metal arc welding (GMAW) toobtain code quality results.However, this wire feeder may alsobe used with a constant current(CC) power source to obtain pass-able results for noncritical qualityapplications.

=

Use 450 setting

B-5OPERATIONB-5


3. 5-PIN GUN TRIGGER CONNECTOR

4. WORK SENSE LEAD

5. THERMAL LED, MOTOR OVERLOAD

The thermal light illuminates when thewire drive motor draws too much current.If the thermal light illuminates, the wiredrive will automatically shutdown for up to30 seconds to allow the motor to cool. Tostart welding again, release the gun trigger, inspectthe gun cable, liner (and conduit). Clean and makerepairs as necessary. Start welding again when theproblem has been safely resolved.

For best results, keep the gun cable and conduit asstraight as possible. Perform regular maintenanceand cleaning on the gun liner, conduit and gun.Always use quality electrode, such as L-50 or L-56from Lincoln Electric.

6. POLARITY LED

The Polarity LEDlights when the wirefeeder is connectedfor positive polarity.Use the polarityLED to verify thewire feeder is connected for the proper polarity.

+ POLARITY POLARDAD- POLARITÉ

+ POLARITY POLARDAD- POLARITÉ

B-6OPERATIONB-6

INTERNAL CONTROLS


1� 2 Step Trigger Interlock Switch2� CV / CC Switch3� Pressure Adjustment Arm4� Optional Timer Kit (See Accessories Section)5� Spool Retainer 6� Spindle Brake

7� Gun Bushing

ITEM�� DESCRIPTION

1

9

8

7

632

8� Thumb Screw for securing the welding Gun

9� Socket Head Cap Screw for securing the Gun Bushing

4 5

10� Drive Hubs

12� Cold Feed Pushbutton

11� Inlet Wire Guide

11 1210

FIGURE B.2

B-7OPERATIONB-7

INTERNAL CONTROLS DESCRIPTION(See Figure B.2)

2 Step - Trigger Interlock Switch

The 2 Step - Trigger Interlockswitch changes the function of thegun trigger. 2 Step trigger opera-tion turns welding on and off indirect response to the trigger.Trigger Interlock operation allowswelding to continue when the trig-ger is released for comfort on longwelds.

Place the toggle switch in the DOWN position for 2Step operation or in the UP position for TriggerInterlock operation.

2 Step Trigger

2 Step trigger operation is the most common. Whenthe gun trigger is pulled, the welding power sourceenergizes the electrode output and the wire feederfeeds wire for welding. The power source and wirefeeder continue welding until the trigger is released.

Trigger Interlock

Trigger Interlock operation provides for operator com-fort when making long welds. When the gun trigger isfirst pulled, the welding power source energizes theoutput and the wire feeder feeds wire for welding.The gun trigger is then released while the weld ismade. To stop welding, the gun trigger is pulledagain, and when it is released the welding powersource output turns off and the wire feeder stops feed-ing wire.

If the arc goes out while welding withtrigger interlock operation, the elec-trode output from the welding powersource remains energized and thewire feeder will continue to feed wireuntil the gun trigger is again pulledand then released.

----------------------------------------------------------------------------

CV/CC SWITCH(See Figure B.2)

The CV/CC switch sets the wirefeed speed control method for thewire feeder.

In the CV position, the wire feedspeed remains constant duringwelding. A steady arc voltage isregulated by the power source byadjusting the arc current.

In the CC position, the wire feedspeed varies during welding. Thearc length is maintained by chang-ing the wire feed speed.

COLD FEED PUSHBUTTON(See Figure B.2)

When cold feeding, the wiredrive will feed electrode butneither the power source northe gas solenoid will be ener-gized. Adjust the speed ofcold feeding by rotating theWFS knob. Cold feeding, or"cold inching" the electrode isuseful for threading the elec-trode through the gun.


CV

CC

CV

CC

CAUTION

B-8OPERATIONB-8


CONSTANT CURRENT WIRE WELDING (See Figure B.3)

Most semiautomatic welding processes perform betterusing constant voltage power sources.

Welding codes usually do not address the powersource selection or specifically, whether the weldingprocess is to be operated in the constant voltage orconstant current mode. Instead, codes typically speci-fy limitations on the current, voltage, heat input andpreheat temperature based on the material to bewelded. The intention is to assure that proper weldmaterial properties will develop.

Welding is sometimes performed using constant cur-rent power sources. The operation can be more con-venient because it may allow the use of an existingstick (SMAW) power source and the power sourcecan be placed at a distant location without any provi-sion for adjusting the output settings.

For constant current operation, the power source isset to deliver the specified current. The power sourceregulates this current regardless of changes in thewelding circuit, including cable length, electrode diam-eter, wire feed speed, contact tip to work distance,etc.

Changes in the wire feed speed (WFS) or contact tipto work distance (CTWD) affect the arc voltage whenconstant current power sources are used. Loweringthe wire feed speed raises the voltage, raising thewire feed speed lowers the voltage. Lengthening thecontact tip to work distance raises the voltage, short-ening the contact tip to work distance lowers the volt-age.

If the contact tip to work distance is properly main-tained, a satisfactory operating voltage range may beachieved, and a sound weld may result. However,when a welder uses a longer contact tip to work dis-tance, an arc-sensing wire feeder compensates byincreasing the wire feed speed to regulate the voltage.Even if the voltage and current remain unchanged, theincreased wire feed speed may result in a depositionrate well beyond the specified range of the electrode.Under these conditions, the specified weld metal prop-erties may not be achieved.

Constant voltage power sources deliver large currentsurges to stabilize the arc when the electrode is short-ed or the arc length is very short. However, a constantcurrent power source does not provide such aresponse to stabilize the arc. It may be difficult toachieve required weld metal properties, or to achievethe required quality of welds needed to pass nonde-structive tests, when such welds are made under con-stant current operation.

For these reasons, Lincoln Electric does NOT recom-mend constant current semiautomatic welding forapplications which need to meet specified weld metalchemical or mechanical property requirements or weldquality requirements.

Constant CurrentPower Source

WireFeeder

Current

Current

CTWDWFS

+

-

FIGURE B-3

B-9OPERATIONB-9

REAR CONTROLS:


1 Gas Purge Pushbutton2 Flow Meter Ball4 Shielding Gas Inlet3 Flow Meter Valve

6 Optional Water cooled gun connections5 Electrode Lead

ITEM DESCRIPTION

1

2

3

4

5

6

1 Gas Purge Pushbutton2 Flow Meter Ball

4 Shielding Gas Inlet3 Flow Meter Valve

6 Optional Water cooled gun connections

5 Electrode Lead

ITEM DESCRIPTION

1

2

3

4

5

6

B-10OPERATIONB-10

GAS PURGE PUSHBUTTONThe gas solenoid valve will energize but neither thepower source output nor the drive motor will be turnedon. The Gas Purge switch is useful for setting theproper flow rate of shielding gas. Flow meters shouldalways be adjusted while the shielding gas is flowing.

FLOW METER

The flowmeter shows the flow rate of shielding gasand has a valve to adjust the flow. The flow meter isscaled for CO2, Ar, and Ar/CO2 blends. The middle ofthe ball indicates the flow rate of shielding gas.

Adjust the flow rate while depressing the GASPURGE switch by turning the valve at the bottom ofthe meter. Most weld procedures require 25-40 scfh(11.8 - 18.9 lpm) for sufficient shielding gas coverage.Gun angle, nozzle diameter, joint configuration andwind conditions may effect the amount of shieldinggas required.

When using a wire feeder witha flow meter, adjust the regu-lator at the shield gas bottle orsupply to a flow rate that ishigher than the flow rate indi-cated on the feeder f lowmeter. Note that most regula-tors are calibrated based uponhaving low restrictions on theoutlet. The valve on the feederflow meter creates a highrestriction and may causeerrors in the readings at thesupply regulator. Set the gasflow rate using the feeder flowmeter reading and not thesupply regulator reading.

SCFH Liter/Min.10 4.720 9.430 14.240 18.950 23.660 28.370 33.180 37.8


10

20

30

40

50

60

70

80

90

Valve

Ball

POWER-UP SEQUENCE

On feeders with analog voltmeters, the thermal LEDwill briefly light during power-up.

If the gun trigger is activated during power up, thefeeder will not operate until the gun trigger is released.

C-1ACCESSORIESC-1


WIRE TYPESteel Wires:

Cored Wires:

Aluminum Wires:

ELECTRODE SIZE.023-.030 (0.6-0.8mm)

.035 (0.9mm)

.045 (1.2mm)

.052 (1.4mm)1/16 (1.6mm)

.035,.045 (0.9, 1.2mm).040 (1.0mm)

.030-.035" (0.8-0.9mm)

.040-.045" (1.0-1.2mm).052" (1.4mm)1/16" (1.6mm)

.068-.072" (1.7-1.8mm)5/64" (2.0mm)3/32” (2.4mm).035" (0.9 mm).040" (1.0mm)3/64" (1.2mm)1/16" (1.6mm)

KP KITKP1696-030SKP1696-035SKP1696-045SKP1696-052SKP1696-1/16S

KP1696-1KP1696-2

KP1697-035CKP1697-045CKP1697-052CKP1697-1/16CKP1697-068KP1697-5/64KP1697-3/32KP1695-035AKP1695-040AKP1695-3/64AKP1695-1/16A

FACTORY INSTALLED EQUIPMENT• K1500-2 Gun Receiver Bushing.

Includes: 2 V groovedrive rolls and innerwire guide.

Includes: 2 Knurleddrive rolls and innerwire guide.

Includes: 2 polishedU groove drive rolls,outer wire guide andinner wire guide.

DRIVE ROLL KITS

C-2ACCESSORIESC-2


K1796-xx

K2593-xx

K1803-1

K1840-xx

K1842-xx

AWG 1/0 Co-Axial Power Cable

AWG #1 Coaxial Power Cable

Work and Feeder Cables Package

Weld Power Cable, Twist-Mate toLug

Weld Power Cable, Lug to Lug

Includes: 1/0 Coaxial weldcable of length "xx". Ends ofthe weld cable have lug con-nections. Use for Pulse weld-

ing.

Includes: AWG #1 Coaxialweld cable of length "xx".

Ends of the weld cable havelug connections. Use forPulse or STT™ welding.

Includes: Twist-Mate to Lug2/0 cable 14' (1.2m) long with

Ground Clamp, and Twist-Mate to Lug 2/0 Cable 9'

(2.7m) long.

Includes: Twist-Mate to Lug,1/0 cable of length "xx".

IIncludes: Lug to Lug, 3/0Cable of length "xx" for lengthsup to 60' (18.3m). Lug to Lug,

4/0 Cable of length "xx" forlengths greater than 60'

(18.3m).

C-3ACCESSORIESC-3


K1797-xx

K2335-1

K484

K1520-1(requires DigitalMeter/remote

control kit)

K1798(requires

remote controlkit

Control Cable

Adapter for Competitive PowerSources

Jumper Plug Kit

42 Volt Transformer Kit

Adapter Cable for Control Cable toTerminal Strip Power Sources

Includes: 14 pin to 14 pin wirefeeder to power source control

cable.

Includes: Adapter controlcable for connecting a Lincoln

42 VAC wire feeder to a 24VAC Miller power source.

Requires the digitalmeter/remote voltage control

kit.

Includes: 14 pin circular con-nector with jumper for leads 2-4. For use in power sourcesfor turning the weld terminals

"ON" at all times.

Includes: One transformer kitfor operating a 42 VAC wire

feeder on a power source sup-plying only 115 VAC.

Includes: 14 circular connectorwith leads to connect to a ter-

minal strip.

C-4ACCESSORIESC-4


K910-1

K910-2

K1500-1

K1500-2

K1500-3

Ground Clamp

Ground Clamp

Gun Receiver Bushing (for gunswith K466-1 Lincoln gun connec-

tors; Innershield and Subarc guns)

Gun Receiver Bushing (for gunswith K466-2, K466-10 Lincoln gunconnectors; Magnum 200/300/400guns and compatible with Tweco®

#2-#4)

Gun Receiver Bushing (for gunswith K613-7 Lincoln gun connec-tors; Magnum 550 guns and com-

patible with Tweco® #5)

Includes: One 300 AmpGround Clamp.

Includes: One 500 AmpGround Clamp.

Includes: Gun receiver bush-ing, set screw and hex key

wrench.

Includes: Gun receiver bush-ing with hose nipple, set screw

and hex key wrench.


and hex key wrench.

C-5ACCESSORIESC-5


K1500-4

K1500-5

K489-7

K435

K468

K590-6

K586-1

Gun Receiver Bushing (for gunwith K466-3 Lincoln gun connec-

tors; compatible with Miller® guns.)

Gun Receiver Bushing (compatiblewith Oxo® guns.)

Gun Receiver Bushing (for LincolnFast-Mate guns.)

Spindle Adapter, for mounting 14lb. (6.4 kg) Innershield Coils on 2

in (51 mm) spindles.

Spindle Adapter, for mounting 8in(203mm) diameter spools on 2 in

(51 mm) spindles.

Water Connection Kit (forEuropean and Control cable mod-

els only)

Deluxe Adjustable Gas Regulator


and hex key wrench.

Includes: Gun receiver bushingwith hose nipple, 4 guide tubes,set screw and hex key wrench.

Includes: Gun receiver bushingwith trigger connector.

Includes: Spindle Adapter madefrom 2 coil retainers. (Electrode

not included.)

Includes: 2 Spindle Adapters,one for 2" wide spools and the

other for 3" wide spools.

Includes: 2 hoses with femalequick connectors at each end, 2

male connectors for 3/16" IDhose, 2 male connectors for _" ID

hose, and mounting hardware.

Includes: Deluxe Gas Regulatorfor Mixed Gases, Adapter forCO2 and 10' (3.0m) Hose.

C-6ACCESSORIESC-6


INSTALLATION OF THE K590-6 WATERCOOLING KIT

ELECTRIC SHOCK can kill.• Turn the input power OFF at the dis-

connect switch before working onthis equipment.

• Do not touch electrically hot parts.• Only qualified personnel should

install, use or service this equipment.------------------------------------------------------------------------The K590-6 components are rated up to 70 psi (5 bar)and 158°F (70°C). Use a coolant fluid that is compati-ble with the water cooler and the gun.

Tools required:• 3/8" wrench• 5/16" nut driver• medium flat bladed screw driver• cutting tool

1. Turn power off at the welding power source.2. Remove the screws securing the case to the inner

module using a 3/8" wrench.

3. Remove the module from the case by lifting thefront of the module approximately .25" (6 mm) andthen sliding forward.

4. Use a 5/16" nut driver to remove the screws holdingthe water cooling cover on the case front of theinner module and on the rear of the case.

5. Install the fitting and hose assembly to the casefront. Route the hoses along the bottom of theinner module and out through the cutout of thecover. Slide the module back into the case.

6. Secure the module to the case with the screws.(Shown in Step 2)

7. Install the fitting assembly to the rear of the case

8. Slide the hose clamps on to the hoses. Trim thehoses to length so that they lay flat on the case bot-tom. Slide hose clamps on the hose. Slide thehoses on to the fittings on the case rear and securewith the hose clamps.

WARNING

jooewashere20001

joewashere20001

ALUMINUM CASE

PLASTIC CASE

ELECTRIC SHOCK can kill.• Turn the input power OFF at the

welding power source beforeinstallation or changing driverolls and/or guides.

• Do not touch electrically liveparts.

• When inching with the gun trigger, electrodeand drive mechanism are "hot" to work andground and could remain energized severalseconds after the gun trigger is released.


• Only qualified personnel should perform main-tenance work.

----------------------------------------------------------------------

D-1MAINTENANCED-1


WARNING

SAFETY PRECAUTIONS

ROUTINE MAINTENANCE

• Check weld cables, control cables and gas hosesfor cuts.

• Clean and tighten all weld terminals.

PERIODIC MAINTENANCE

• Clean drive rolls and inner wire guide and replace ifworn.

• Blow out or vacuum the inside of the feeder.

CALIBRATION SPECIFICATION

Voltmeter Validation, Across the Arc Analog MeterModels

Tools required:• DC voltmeter reference standard• Constant voltage DC welding power source with

adjustable no-load voltage (DC-400, V-350, CV-400or equivalent).

To verify the analog voltmeter accuracy:1. Turn power OFF.

2. Connect the LN-25™ PRO ACROSS THE ARCMODEL to the constant voltage DC welding powersource. The work lead of the LN-25™ PRO mustbe connected to the work terminal of the powersource.

3. Connect the reference voltmeter between thebrass block of the LN-25™ PRO and the worklead.

4. Turn power ON.

5. Energize the output circuit of the power source.Adjust the power source output to 20±1 VDC asmeasured on the reference meter.

6. Verify that LN-25™ PRO voltmeter reads between19 and 21 volts.

If the voltmeter reading is out of range, check forloose connections or replace the voltmeter. There isno calibration adjustment for the LN-25™ PRO volt-meter.

Flow Meter Validation

Tools required:

• Flow meter reference standard.• Constant voltage DC welding power source (DC-

400, V-350, CV-400 or equivalent).

To verify the flow meter accuracy:

1. Turn power OFF.

2. Connect the LN-25™ PRO to the constant voltageDC welding power source. The work lead of theLN-25™ PRO must be connected to the work ter-minal of the power source.

3. Connect a supply of CO2 to the wire feeder. Donot exceed the maximum inlet pressure of the wirefeeder.

4. Disconnect the shielding gas hose that connects tothe gun bushing.

5. Connect the shielding gas hose to flow meter refer-ence standard.

6. Orient the LN-25™ PRO in a vertical position.

7. Turn power ON.

8. Adjust the flow meter on the LN-25™ PRO to 40scfh while pressing the GAS PURGE button.

9. Measure the gas flow with the calibrated flowmeter while pressing the GAS PURGE button.

10. The measured flow rate should be between 35and 45 scfh.

D-2MAINTENANCED-2

The LN-25™ PRO flow meter cannot be calibrated. Ifthe flow meter reads incorrectly, check for leaks orkinks in the gas hose. Replace the flow meter if neces-sary.Wire Feed Speed Validation

(See Figure D.1)Calibration of the LN-25™ PRO may be required whenthe p.c. board, wire feed speed potentiometer or motor isreplaced or serviced. Calibration matches the scale onthe name plate to the actual wire feed speed.

Tools required:• RPM meter• Constant voltage DC welding power source (DC-400,

V-350, CV-400 or equivalent)• 7/16" open end wrench

To verify if calibration is necessary:

1. Turn power OFF.

2. Set the wire feed speed per the table.

Model gearing Wire Feed Speed Acceptable RangeStandard Speed 400 in/min 69 - 77 rpmExtra Torque 150 in/min 25 - 31 rpm

3. Remove the plastic cover from the lower portion of thewire drive with a 7/16" wrench.

4. Connect the LN-25™ PRO to the constant voltage DCwelding power source. The work lead of the LN-25™PRO must be connected to the work terminal of thepower source.

5. Turn power ON.

6. Measure the motor rpm when the COLD FEED buttonis pressed.

7. Verify the rpm is within the acceptable range.

To change the wire feed speed calibration:(See Figure D.2)

Tools required:• 5/16" nut driver• RPM meter• Shorting plug. The shorting plug shorts pins 4 & 8 of

connector J3 on the Control P.C. Board. J3 is a 8 pinmolex connector.

1. Turn power OFF.

2. Remove the 4 screws holding the rear cover insidethe feeder and remove the cover.

3. Open the idle arm.

4. Set the wire feed speed per the table.

Model gearing Wire Feed SpeedStandard Speed 400 in/minExtra Torque 150 in/min

5. Connect the LN-25™ PRO to the constant voltage DCwelding power source. The work lead of the LN-25™PRO must be connected to the work terminal of thepower source.

6. Turn power ON.

7. Insert the shorting plug into connector J3 on theControl P.C. Board. The shorting plug shorts pins 4& 8.

8. Remove the shorting plug.

9. Turn power OFF.

10. Replace the cover and secure with the screws.


COVER

MOTOR SHAFT

FIGURE D.1

FIGURE D.2

COVER

P.C. BOARD

E-1TROUBLESHOOTINGE-1


If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact yourLocal Lincoln Authorized Field Service Facility for technical troubleshooting assistance before you proceed.

CAUTION

This Troubleshooting Guide is provided to help youlocate and repair possible machine malfunctions.Simply follow the three-step procedure listed below.

Step 1. LOCATE PROBLEM (SYMPTOM).Look under the column labeled “PROBLEM (SYMP-TOMS)”. This column describes possible symptomsthat the machine may exhibit. Find the listing thatbest describes the symptom that the machine isexhibiting.

Step 2. POSSIBLE CAUSE.The second column labeled “POSSIBLE CAUSE” liststhe obvious external possibilities that may contributeto the machine symptom.

Step 3. RECOMMENDED COURSE OF ACTIONThis column provides a course of action for thePossible Cause, generally it states to contact yourlocal Lincoln Authorized Field Service Facility.

If you do not understand or are unable to perform theRecommended Course of Action safely, contact yourlocal Lincoln Authorized Field Service Facility.

HOW TO USE TROUBLESHOOTING GUIDE

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 andmachine operator and will invalidate your factory warranty. For your safety and to avoid ElectricalShock, please observe all safety notes and precautions detailed throughout this manual.

__________________________________________________________________________

WARNING

ELECTRIC SHOCK can kill.• Turn the input power OFF at the welding power source before installation or changing

drive rolls and/or guides.• Do not touch electrically live parts.• When inching with the gun trigger, electrode and drive mechanism are "hot" to work

and ground and could remain energized several seconds after the gun trigger isreleased.

• Welding power source must be connected to system ground per the National ElectricalCode or any applicable local codes.

• Only qualified personnel should perform maintenance work.

WARNING



Observe all Safety Guidelines detailed throughout this manual


CAUTION

PROBLEMS(SYMPTOMS)

POSSIBLE CAUSE

RECOMMENDEDCOURSE OF ACTION

Fault Code

Err 81 Motor overload, long term.

Err 82 Motor overload, short term.

Description

1. The wire drive motor has over-heated.

1. The wire drive motor current drawhas exceeded l imits, usuallybecause the motor is in a lockedrotor state.

Possible Adjustments

1. Check that the electrode slideseasily through the gun and cable.

2. Remove tight bends from the gunand cable.

3. Check that the spindle brake isnot too tight.

4. Verify a high quality electrode isbeing used.

5. Wait for the error to reset and themotor to cool (approximately 1minute).

1. Check that motor can turn freelywhen idle arm is open.

2. Verify that the gears are free ofdebris and dirt.

Digital Display Models Error Codes





CAUTION

PROBLEMS(SYMPTOMS)

POSSIBLE CAUSE


The feeder does power up - no dis-play, no cold feed.

The wire feeder power up but thereis no output when the trigger ispulled. The shielding gas is flowingand the drive rolls turn.

No shielding gas.

Inconsistent wire feeding or wire notfeeding but drive rolls turning.

1. The work sense lead is discon-nected or is a poor electrical con-nection. (Across the arc models)

2. The power source is OFF.3. The circuit breaker for the wire

feeder on power source havetripped. (control cable models)

4. The control cable may be loose ordamaged. (control cable models)

1. The contactor coil connections areloose.

2. The contactor has failed.

1. The gas supply is OFF or empty.

2. The gas hose is cut or crushed

3. The flow meter valve is closed.4. Dirt or debris is in the solenoid.

5. There is a loose solenoid connec-tion.

6. The solenoid has failed.

1. The gun cable is kinked and/ortwisted

2. The wire is jammed in the gun andcable.

3. The gun liner is dirty or worn.

4. The electrode is rusty or dirty.

5. The contact tip is partially meltedor has spatter.

6. Improper gun liner, tip, drive rollsand/or inner wire guide.

1. Connect the work sense lead tothe work in a location free of dirt,rust and paint.

2. Turn ON the power source.3. Reset the circuit breakers.

4. Tighten, repair or replace the con-trol cable.

1. Verify the contactor coil connec-tions.

2. Replace the contactor.

1. Verify the gas supply is ON andflowing.

2. Route the gas hose so it avoidssharp corners and make surenothing is on top of it. Repair orreplace damaged hoses.

3. Open the flow meter valve.4. Apply filtered shop at 80psi to the

solenoid to remove dirt.5. Remove the cover and check that

all connections are in good condi-tion.

1. Keep the gun cable as straight aspossible. Avoid sharp corners orbends in the cable.

2. Remove the gun from the wirefeeder and pull the jammed wireout of the gun and cable.

3. Blow dirt out of the liner with lowpressure (40psi or less). Replacethe liner if worn.

4. Use only clean electrode. Usequality electrode, like L-50 or L-56from Lincoln Electric.

5. Replace the contact tip.

6. Verify the proper parts areinstalled.

Output Problems





CAUTION

PROBLEMS(SYMPTOMS)

POSSIBLE CAUSE


Wire feed speed consistently oper-ates at the wrong value. The speedchanges when the wire feed speedknob is adjusted.

The wire feed speed stuck at 200-300 in/min and there is no changewhen the wire feed speed knob isadjusted.

Variable or "hunting" arc.

(Digital display models)When the trigger is pulled, the wirefeeds slowly.

Poor arc starts with sticking or"blast-offs", weld porosity, narrowand ropy looking bead.

7. Incorrect tension arm pressure onthe drive rolls.

8. The spindle brake is too tight.

9. Worn drive roll

1. The jumper lead for normalspeed/extra torque is connectedimproperly.

2. The wrong gear is installed in thewire drive.

3. The brushes on the motor areworn.

1. The tachometer is connectedimproperly.

2. The tachometer has failed.

1. Wrong size, worn and/or meltedcontact tip.

2. Worn work cable or poor workconnection.

3. Wrong polarity.

4. The gas nozzle is extendedbeyond the contact tip or the wirestickout is too long.

5. Poor gas shielding on processesrequiring gas.

1. The Run-In switch is "ON"

1. Improper procedures or tech-niques.

7. Adjust the tension arm per theInstruction Manual. Most elec-trodes feed well at a tension armsetting of "3".

8. Verify the spool of wire moveswith minimal effort.

9. Replace the drive rolls if worn orfilled with dirt.

1. Properly connect the normalspeed/extra torque jumper.

2. Install the proper pinion gear inthe wire drive.

3. Replace the motor/gearboxassembly.

1. Verify all of the tachometer leadsare properly connected.

2. Replace the motor and tachome-ter assembly.

1. Replace the contact tip.

2. Verify all work and electrode con-nections are tight and that thecables are in good condit ion.Clean/replace as necessary.

3. Adjust polarity to the recommend-ed procedure.

4. Adjust the gas nozzle and shortenthe stickout to 3/8 to 1/2 inches.

5. Check gas flow and mixture.Remove or block sources ofdrafts.

1. Use the set-up Push-button to turnRun-in OFF.

1. See "Gas Metal Arc WeldingGuide" (GS-100)

Output Problems

F-1DIAGRAMSF-1


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F-2DIAGRAMSF-2


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F-3DIMENSION PRINTF-3


17.19

8.65

16” CIRCLE12” x 18” ELLIPSE

23.17

14.81

17.1

9

8.65

16” C

IRC

LE

12” x

18”

ELL

IPS

E23

.17

14.8

1

NOTES


WARNING

AVISO DEPRECAUCION

ATTENTION

WARNUNG

ATENÇÃO

Spanish

French

German

Portuguese

Japanese

Chinese

Korean

Arabic

READ AND UNDERSTAND THE MANUFACTURER’S INSTRUCTION FOR THIS EQUIPMENT AND THECONSUMABLES TO BE USED AND FOLLOW YOUR EMPLOYER’S SAFETY PRACTICES.

SE RECOMIENDA LEER Y ENTENDER LAS INSTRUCCIONES DEL FABRICANTE PARA EL USO DEESTE EQUIPO Y LOS CONSUMIBLES QUE VA A UTILIZAR, SIGA LAS MEDIDAS DE SEGURIDAD DE SUSUPERVISOR.

LISEZ ET COMPRENEZ LES INSTRUCTIONS DU FABRICANT EN CE QUI REGARDE CET EQUIPMENTET LES PRODUITS A ETRE EMPLOYES ET SUIVEZ LES PROCEDURES DE SECURITE DE VOTREEMPLOYEUR.

LESEN SIE UND BEFOLGEN SIE DIE BETRIEBSANLEITUNG DER ANLAGE UND DEN ELEKTRO-DENEINSATZ DES HERSTELLERS. DIE UNFALLVERHÜTUNGSVORSCHRIFTEN DES ARBEITGEBERSSIND EBENFALLS ZU BEACHTEN.

• Do not touch electrically live parts orelectrode with skin or wet clothing.

• Insulate yourself from work andground.

• No toque las partes o los electrodosbajo carga con la piel o ropa moja-da.

• Aislese del trabajo y de la tierra.

• Ne laissez ni la peau ni des vête-ments mouillés entrer en contactavec des pièces sous tension.

• Isolez-vous du travail et de la terre.

• Berühren Sie keine stromführendenTeile oder Elektroden mit IhremKörper oder feuchter Kleidung!

• Isolieren Sie sich von denElektroden und dem Erdboden!

• Não toque partes elétricas e electro-dos com a pele ou roupa molhada.

• Isole-se da peça e terra.

• Keep flammable materials away.

• Mantenga el material combustiblefuera del área de trabajo.

• Gardez à l’écart de tout matérielinflammable.

• Entfernen Sie brennbarres Material!

• Mantenha inflamáveis bem guarda-dos.

• Wear eye, ear and body protection.

• Protéjase los ojos, los oídos y elcuerpo.

• Protégez vos yeux, vos oreilles etvotre corps.

• Tragen Sie Augen-, Ohren- und Kör-perschutz!

• Use proteção para a vista, ouvido ecorpo.

WARNING

AVISO DEPRECAUCION

ATTENTION

WARNUNG

ATENÇÃO

Spanish

French

German

Portuguese

Japanese

Chinese

Korean

Arabic

LEIA E COMPREENDA AS INSTRUÇÕES DO FABRICANTE PARA ESTE EQUIPAMENTO E AS PARTESDE USO, E SIGA AS PRÁTICAS DE SEGURANÇA DO EMPREGADOR.

• Keep your head out of fumes.• Use ventilation or exhaust to

remove fumes from breathing zone.

• Los humos fuera de la zona de res-piración.

• Mantenga la cabeza fuera de loshumos. Utilice ventilación oaspiración para gases.

• Gardez la tête à l’écart des fumées.• Utilisez un ventilateur ou un aspira-

teur pour ôter les fumées des zonesde travail.

• Vermeiden Sie das Einatmen vonSchweibrauch!

• Sorgen Sie für gute Be- undEntlüftung des Arbeitsplatzes!

• Mantenha seu rosto da fumaça.• Use ventilação e exhaustão para

remover fumo da zona respiratória.

• Turn power off before servicing.

• Desconectar el cable de ali-mentación de poder de la máquinaantes de iniciar cualquier servicio.

• Débranchez le courant avant l’entre-tien.

• Strom vor Wartungsarbeitenabschalten! (Netzstrom völlig öffnen;Maschine anhalten!)

• Não opere com as tampas removidas.• Desligue a corrente antes de fazer

serviço.• Não toque as partes elétricas nuas.

• Do not operate with panel open orguards off.

• No operar con panel abierto oguardas quitadas.

• N’opérez pas avec les panneauxouverts ou avec les dispositifs deprotection enlevés.

• Anlage nie ohne Schutzgehäuseoder Innenschutzverkleidung inBetrieb setzen!

• Mantenha-se afastado das partesmoventes.

• Não opere com os paineis abertosou guardas removidas.

• Sales and Service through Subsidiaries and Distributors Worldwide •

Cleveland, Ohio 44117-1199 U.S.A. TEL: 216.481.8100 FAX: 216.486.1751 WEB SITE: www.lincolnelectric.com

• World's Leader in Welding and Cutting Products •

im901-a ln-25 pro january, 2010 - lincoln electric...6.a. remove fire hazards from the welding area....

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