Lincoln Electric IM615 User Manual

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MAGNUM 250 NR
GUN & CABLE ASSEMBLY
IM615
November, 1997
Safety Depends on You
Lincoln arc welding and cutting equipment is designed and built with safety in mind. However, your overall safety can be increased by proper installation ... and thoughtful operation on your part. DO NOT INSTALL, OPERATE OR REPAIR THIS EQUIPMENT WITHOUT READING THIS MAN­UAL AND THE SAFETY PRE­CAUTIONS CONTAINED THROUGHOUT. And, most importantly, think before you act and be careful.
Models
K1614-2,-3
World's Leader in Welding and Cutting Products Premier Manufacturer of Industrial Motors
Cleveland, Ohio 44117-1199 U.S.A. TEL: 216.481.8100 FAX: 216.486.1751 WEB SITE: www.lincolnelectric.com
OPERATOR’S MANUAL
• Sales and Service through Subsidiaries and Distributors Worldwide •
i
SAFETY
WARNING
CALIFORNIA PROPOSITION 65 WARNINGS
Diesel engine exhaust and some of its constituents are known to the State of California to cause can­cer, birth defects, and other reproductive harm.
The Above For Diesel Engines
ARC WELDING CAN BE HAZARDOUS. PROTECT YOURSELF AND OTHERS FROM POSSIBLE SERIOUS INJURY OR DEATH. KEEP CHILDREN AWAY. PACEMAKER WEARERS SHOULD CONSULT WITH THEIR DOCTOR BEFORE OPERATING.
Read and understand the following safety highlights. For additional safety information, it is strongly recommended that you pur­chase a copy of “Safety in Welding & Cutting - ANSI Standard Z49.1” from the American Welding Society, P.O. Box 351040, Miami, Florida 33135 or CSA Standard W117.2-1974. A Free copy of “Arc Welding Safety” booklet E205 is available from the Lincoln Electric Company, 22801 St. Clair Avenue, Cleveland, Ohio 44117-1199.
BE SURE THAT ALL INSTALLATION, OPERATION, MAINTENANCE AND REPAIR PROCEDURES ARE PERFORMED ONLY BY QUALIFIED INDIVIDUALS.
The engine exhaust from this product contains chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.
The Above For Gasoline Engines
i
FOR ENGINE powered equipment.
1.a. Turn the engine off before troubleshooting and maintenance work unless the maintenance work requires it to be running.
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1.b. Operate engines in open, well-ventilated areas or vent the engine exhaust fumes outdoors.
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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 vaporizing on contact with hot engine parts and igniting. Do not spill fuel when filling tank. If fuel is spilled, wipe it up and do not start engine until fumes have been eliminated.
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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.
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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.
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1.f. Do not put your hands near the engine fan. Do not attempt to override the governor or idler by pushing on the throttle control rods while the engine is running.
1.h. To avoid scalding, do not remove the radiator pressure cap when the engine is hot.
ELECTRIC AND MAGNETIC FIELDS may be dangerous
2.a. Electric 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.
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1.g. To prevent accidentally starting gasoline engines while turning the engine or welding generator during maintenance work, disconnect the spark plug wires, distributor cap or magneto wire as appropriate.
2.d.4. Connect the work cable to the workpiece as close as possible to the area being welded.
2.d.5. Do not work next to welding power source.
Mar ‘95
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SAFETY
ii
ELECTRIC SHOCK can kill.
3.a. The electrode and work (or ground) circuits are electrically “hot” when the welder is on. Do not touch these “hot” parts with your bare skin or 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. Never dip the electrode in water for cooling.
3.h. Never 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.
ARC RAYS can burn.
4.a. Use a shield with the proper filter and cover plates to protect your eyes from sparks and the rays of the arc when welding or observing open arc welding. Headshield and filter lens should conform to ANSI Z87. I standards.
4.b. Use suitable clothing made from durable flame-resistant material to protect your skin and that of your helpers from the arc rays.
4.c. Protect other nearby personnel with suitable, non-flammable screening and/or warn them not to watch the arc nor expose themselves to the arc rays or to hot spatter or metal.
FUMES AND GASES can be dangerous.
5.a. 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 below Threshold Limit Values (TLV) using local exhaust or mechanical ventilation. In confined spaces or in some circumstances, outdoors, a respirator may be required. Additional precautions are also required when welding on galvanized steel.
5.b.
Do not weld in locations near chlorinated hydrocarbon coming from degreasing, cleaning or spraying operations. The heat and rays of the arc can react with solvent vapors form phosgene, a highly toxic gas, and other irritating products.
5.c. 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.d. 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.
vapors
to
5.e. Also see item 1.b.
Mar ‘95
iii
SAFETY
iii
WELDING 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.
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” (ANSI 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 been “cleaned”. For information, purchase “Recommended Safe Practices for the 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.
Sparks and spatter are thrown from the welding arc. Wear oil
6.f. free protective garments such as leather gloves, heavy shirt, cuffless trousers, high shoes and a cap over your hair. Wear ear plugs when welding out of position or in confined places. Always wear safety glasses with side shields when in a welding area.
6.g. Connect the work cable to the work as close to the welding area as practical. Work cables connected to the building framework or other locations away from the welding area increase the possibility of the welding current passing through lifting chains, crane cables or other alternate circuits. This can create fire hazards or overheat lifting chains or cables until they fail.
6.h. Also see item 1.c.
Remember that welding sparks and hot
though
they have
Preparation
for Welding and Cutting of
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. Never allow the electrode, electrode holder or any other electrically “hot” parts to touch a cylinder.
7.e. Keep your head and face away from the cylinder valve outlet when opening the cylinder valve.
7.f. Valve protection caps should always be in place and hand tight except when the cylinder is in use or connected for use.
7.g. 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.
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. National Electrical Code, all local codes and the manufacturer’s recommendations.
8.c. Ground the equipment in accordance with the U.S. National Electrical Code and the manufacturer’s recommendations.
Mar ‘95
iv
SAFETY
iv
PRÉCAUTIONS DE SÛRETÉ
Pour votre propre protection lire et observer toutes les instructions et les précautions de sûreté specifiques qui parraissent dans ce manuel aussi bien que les précautions de sûreté générales suiv­antes:
Sûreté Pour Soudage A L’Arc
1. Protegez-vous contre la secousse électrique:
a. Les circuits à l’électrode et à la piéce sont sous tension
quand la machine à souder est en marche. Eviter toujours tout contact entre les parties sous tension et la peau nue ou les vétements mouillés. Porter des gants secs et sans trous pour isoler les mains.
b. Faire trés attention de bien s’isoler de la masse quand on
soude dans des endroits humides, ou sur un plancher met­allique ou des grilles metalliques, principalement dans les positions assis ou couché pour lesquelles une grande partie du corps peut être en contact avec la masse.
c. Maintenir le porte-électrode, la pince de masse, le câble de
soudage et la machine à souder en bon et sûr état defonc­tionnement.
d.Ne jamais plonger le porte-électrode dans l’eau pour le
refroidir.
e. Ne jamais toucher simultanément les parties sous tension
des porte-électrodes connectés à deux machines à soud­er parce que la tension entre les deux pinces peut être le total de la tension à vide des deux machines.
f. Si on utilise la machine à souder comme une source de
courant pour soudage semi-automatique, ces precautions pour le porte-électrode s’applicuent aussi au pistolet de soudage.
6. Eloigner les matériaux inflammables ou les recouvrir afin de prévenir tout risque d’incendie dû aux étincelles.
7. Quand on ne soud 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 levage, câbles de grue, ou autres circuits. Cela peut provoquer des risques d’incendie ou d’echauffement des chaines et des câbles jusqu’à ce qu’ils se rompent.
9. Assurer une ventilation suffisante dans la zone de soudage. Ceci est particuliérement important pour le soudage de tôles galvanisées plombées, ou cadmiées ou tout autre métal qui produit des fumeés toxiques.
10. Ne pas souder en présence de vapeurs de chlore provenant d’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.
e pas, poser la pince à une endroit isolé de
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 ray­onnement de l’arc et des projections quand on soude ou quand on regarde l’arc.
b. Porter des vêtements convenables afin de protéger la peau
de soudeur et des aides contre le rayonnement de l‘arc.
c. 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, pan­talons 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.
PRÉCAUTIONS DE SÛRETÉ POUR LES MACHINES À SOUDER À TRANSFORMATEUR ET À REDRESSEUR
1. Relier à la terre le chassis du poste conformement au code de l’électricité et aux recommendations du fabricant. Le dispositif de montage ou la piece à souder doit être branché à une bonne mise à la terre.
2. Autant que possible, I’installation et l’entretien du poste seront effectués par un électricien qualifié.
3. Avant de faires des travaux à l’interieur de poste, la debranch­er à l’interrupteur à la boite de fusibles.
4. Garder tous les couvercles et dispositifs de sûreté à leur place.
Mar. ‘93
for selecting a QUALITY product by Lincoln Electric. We want you
Thank You
to take pride in operating this Lincoln Electric Company product ••• as much pride as we have in bringing this product to you!
Please Examine Carton and Equipment For Damage Immediately
When this equipment is shipped, title passes to the purchaser upon receipt by the carrier. Consequently, Claims for material damaged in shipment must be made by the purchaser against the transportation company at the time the shipment is received.
Please record your equipment identification information below for future reference. This information can be found on your machine nameplate.
Model Name and Sales SpecNumber (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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Read this Operators Manual completely before attempting to use this equipment. Save this manual and keep it
handy for quick reference. Pay particular attention to the safety instructions we have provided for your protection. The level of seriousness to be applied to each is explained below:
WARNING
This statement appears where the information must be followed exactly to avoid serious personal injury or loss of life.
CAUTION
This statement appears where the information must be followed to avoid minor personal injury or damage to this equipment.
TABLE OF CONTENTS
Page
General Description ..................................................................................................... Section A
Installation .................................................................................................................... Section B
Connector Kit Installation to Gun Cable ............................................................................. B-1
K466-1 &-8 Installation ............................................................................................... B-1
K466-2 Installation ...................................................................................................... B-1
K466-3 Installation ...................................................................................................... B-1
K466-4 Installation ...................................................................................................... B-1
K466-5 Installation ...................................................................................................... B-2
K466-6, -7 & -9 Installation ......................................................................................... B-2
Liner Installation ................................................................................................................. B-2
Contact Tip and Gas Nozzle Installation ............................................................................ B-3
Connection to Feeder ......................................................................................................... B-3
Connection to Lincoln Feeders ................................................................................... B-3
Connection to Tweco Adapted Feeders ...................................................................... B-3
Connection to Miller Feeders ...................................................................................... B-3
Connection to Hobart Feeders .................................................................................... B-3
Connection to L-Tec Adapted Feeders ....................................................................... B-4
Connection to Lincoln Wirematic, Hobart Series 2000 or SP100T Feeders .............. B-4
Operation ...................................................................................................................... Section C
Electrodes and Equipment ................................................................................................. C-1
Making a Weld ................................................................................................................... C-1
Avoiding Wire Feeding Problems ....................................................................................... C-1
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Maintenance .................................................................................................................. Section D
Removal, Installation and Trimming Instructions for Magnum Liners ................................ D-1
Gun Tubes and Nozzles ..................................................................................................... D-1
Gun Cables ........................................................................................................................ D-1
Cable Cleaning ........................................................................................................... D-1
Cable Repair ....................................................................................................................... D-1
Gun Tube End Repair .................................................................................................. D-1
Wire Feeder End Repair.............................................................................................. D-3
Thread Sizes for 300 and 400 Amp Consumables.......................................................D-5
Troubleshooting ............................................................................................................ Section E
Parts Lists ................................................................................................................ P-202 Series
MAGNUM® 250 NR
A-1
GENERAL DESCRIPTION
A-1
GENERAL DESCRIPTION
The Magnum® 250 NR gun and cable assembly has been designed to meet NEMA specification EW3 for welding with the Innershield (self shielded flux cored electrode) welding process.
The Magnum® 250 NR gun is not factory equipped with a feeder end connector. With the K466-1 Magnum Connector Kit, they can be used with any Lincoln LN-7 or LN-25 semiautomatic wire feeder. The K466-1 should also be used with the LN-8 or LN-9 when feeding .052 and smaller electrodes.
The 250 amp gun can also be used with any wire feed­er equipped with a Tweco® #1, 2, 3, 350 or 4 wire feed adapter kit or Lincoln -10 Series Feeders by using the K466-2 Magnum Connector Kit.
With the K466-3 or K466-4 Magnum connector kits, it is possible to connect Magnum® 250 NR guns direct­ly to a variety of Miller and Hobart wire feeders, respectively.
For best results when welding mild and alloy steels, it is recommended that Lincoln Innershield electrodes be used for the self shielded welding processes.
WARNING
• Do not touch electrically live parts such as output terminals or inter­nal wiring
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The K466-5 connector kit allows connection of Magnum® 250 NR guns to an L Tec feeder connector assembly. L-Tec feeders require a feeder connector assembly (similar to a Tweco® adapter) in order to connect to a gun and cable. The K466-5 contains a brass connector to permit Magnum guns to be con­nected to this feeder connector assembly.
The K466-6 connector kit allows connection of Magnum® 250 NR guns to a Lincoln Wirematic.
The K466-7 connector kit allows connection of Magnum® 250 NR guns to Hobart Series 2000 Wire Feeders.
The K466-8 connector kit allows connection of Magnum® 250 NR guns to an LN8 or LN9 when 1/16 and larger electrode is used.
The K466-9 connector kit allows connection of Magnum® 250 NR guns to SP100T and related wire feeders.
MAGNUM® 250 NR
A-2
GENERAL DESCRIPTION
MAGNUM® 250 NR (250 ampers) AT 60% DUTY CYCLE
Description
Product Cable Wire Size Heavy Gas less Nozzle Cable Gun Tube Number Length (m) in. (mm) Duty Diffuser Insulator Liner 60°
Gun Contact Tips
A-2
K1614-2 15 ft. .035 (0.9) S19392-1 S24109-1 T12313 M16087-1 S24112-1
K1614-3 15 ft. .052 (1.3) S19392-3 S24109-2 T12313 M18997-1 S24112-1
(4.5) .045 (1.2) -2
(4.5) 1/16 (1.6) -4
.068 (1.7) -8
MAGNUM® 250 NR
B-1
INSTALLATION
B-1
Read this entire installation section before you start installation.
SAFETY PRECAUTIONS
WARNING
ELECTRIC SHOCK can kill.
• Do not touch electrically live parts such as output terminals or internal wiring.
• Insulate yourself from the work and ground.
• Always wear dry insulating gloves.
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Only qualified personnel should install, use or service this equipment
CONNECTOR KIT INSTALLATION TO GUN CABLE
K466-1& -8 INSTALLATION (For Lincoln Feeders)
a. Remove brass cable connector and insulation tube
(see Figure 1) from the K466-1 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.
b. Attach the round connector of the gun control cable
provided to the trigger connector on the front of the Lincoln feeder. (NOTE: Both the plug and socket are keyed and must be properly oriented.)
c. The gas nipple and tube are not needed.
K466-2 INSTALLATION (For Tweco Adapted Feeders and Lincoln -10 Series Feeders)
a. Remove brass cable connector (see Figure 1) from
the K466-2 kit and screw it onto the feeder end of the gun cable. Tighten the connection with the wrench provided.
The Magnum® 250 NR cables are shipped as generic assemblies and must be assembled with a K466 con­nector kit (See REPLACEMENT PARTS section Chart A for proper kit).
K466-3 INSTALLATION (For Miller Feeders; i.e. Millermatic 200, Cricket, S-32P, 54D...)
a. Remove brass cable connector (see Figure 1) from
the K466-3 kit and screw it onto the feeder end of the gun cable. Tighten the connection with the wrench provided.
b. Attach the round connector of the gun control cable
provided to the trigger connector on the front of the Miller feeder.
K466-4 INSTALLATION (For Hobart Feeders; i.e.27...)
a. Remove brass cable connector (see Figure 1) from
the K466-4 kit and screw it onto the feeder end of the gun cable. Tighten the connection with the wrench provided.
b. The gas nipple and gas tube are not needed.
c. Attach the phone plug connector of the gun control
cable provided to the trigger connector on the front of the Hobart feeder.
MAGNUM® 250 NR
B-2
INSTALLATION
B-2
K466-5 INSTALLATION (For L-Tec feeders equipped
with an L-Tec feeder connector assembly, MIG 35, MIG 31A, 225...)
a. Remove brass cable connector (see Figure 1) from
the K466-5 kit and screw it onto the feeder end of the gun cable. Tighten the connection with the wrench provided.
b. For L-Tec machines that require trigger lead con-
nections to be made at a terminal strip located with­in the machine (L-Tec 225), a gun control 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
K466-6, K466-7 and K466-9 Installation (Wirematic, Hobart Series 2000 Feeders and SP100T Type feed­ers)
a. Remove brass cable connector (see Figure 1) from
the connector kit and screw it onto the feeder end of the gun cable. Tighten the connection with the wrench provided.
b. Attach the gun control cable provided to the trigger
connector on the front of the wire feeder.
LINER INSTALLATION
a. Lay the gun and cable straight on a flat surface.
b. 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 nozzle insulator, and gas less diffuser from the end of the gun tube assembly.
c. 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.
d. Fully seat the liner bushing in the connector and:
For all K466 connector kits except K466-3 and K466-4, tighten the set screw in the cable connec­tor.
or For K466-3 and K466-4, 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 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. The next largest diameter is for 1/16” (1.6 mm) maximum diameter electrode. The largest diameter piece of liner mate­rial is for 5/64” (2.0 mm) maximum diameter elec­trode.
Figure 1
MAGNUM® 250 NR
B-3
INSTALLATION
B-3
e. Be sure the cable is straight and then trim the liner
to the length shown in Figure 1 (a gauge is includ­ed on the wrench provided with the connection kit for gauging the cut-off length). Remove any burrs from the end of the liner.
f. Screw the gas less diffuser onto the end of the gun
tube and tighten.
CONTACT TIP AND GAS NOZZLE INSTALLATION
a. Choose the correct size contact tip for the electrode
being used (wire size is stenciled on the side of the contact tip) and screw it snugly into the gas less dif­fuser.
NOTE: The contact tip for .068 diameter Innershield
electrode is stenciled 1/16A.
b. Be sure the nozzle insulator is fully screwed onto
the gas less diffuser.
CONNECTION TO FEEDER
CONNECTION TO LINCOLN FEEDERS
a. Check that the adapter and feeder outgoing guide,
as well as the drive roll, are appropriate for the elec­trode size being used.
b. 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.
c. Insert the control cable plug from the feeder trigger
circuit into the mating socket on the gun cable con­nector handle .
CONNECTION TO MILLER FEEDERS
Gun and cable assemblies which were assembled with a K466-3 Connector Kit will connect easily to a variety of popular Miller wire feeders.
a. Check that the gun liner, connector cap liner, drive
rolls and guide tubes are appropriate for the elec­trode size being used.
b. 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 connector.
c. Insert the control cable plug from the feeder trigger
circuit into the mating socket on the gun cable con­nector handle.
Gun cable assemblies which were assembled with a K466-1 or -8 Connection Kit will connect easily to any Lincoln LN-7, LN-8, LN-9, SP-200 or LN-25 feeder.
a. Check that the drive roll(s) and feeder guide tubes
are appropriate for the electrode size being used.
b. 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 conductor block.
c. Insert the control cable plug from the feeder trigger
circuit into the mating socket on the feeder end cable handle (See K466-1 Installation Section.)
CONNECTION TO TWECO ADAPTED FEEDERS AND LINCOLN -10 SERIES FEEDERS
Gun cable assemblies which were assembled with a K466-2 Connection Kit will connect easily to any prop­erly Tweco adapted feeder or Lincoln -10 Series feed­er with a standard K1500-2 gun adapter installed.
CONNECTION TO HOBART FEEDERS
Gun and cable assemblies which were assembled with a K466-4 Connector Kit will connect easily to a variety of Hobart wire feeders.
a. Check that the gun liner, connector cap liner, drive
rolls and guide tubes are appropriate for the elec­trode size being used.
b. 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 connector.
c. Insert the control cable plug from the feeder trigger
circuit into the mating socket on the gun cable con­nector handle.
MAGNUM® 250 NR
B-4
CONNECTION TO L-TEC ADAPTED FEEDERS
Gun and cable assemblies which were assembled with a K466-5 connection kit will connect easily to an L-Tec feeder equipped with an L-Tec feeder connector assembly. L-Tec feeders require this connector assem­bly (similar to a Tweco adapter) to connect with a gun and cable.
a. Check that the adapter and feeder outgoing guide
as well as the drive roll, are appropriate for the elec­trode size being used.
b. 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.
c. Insert the control cable plug from the feeder trigger
circuit into the mating socket on the gun cable con­nector 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 terminals 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.
INSTALLATION
B-4
CONNECTION TO LINCOLN WIREMATIC, HOBART SERIES 2000 FEEDERS, OR SP100T TYPE FEEDERS.
Gun cable asssemblies which were assembled with a K466-6, K466-7 or K466-9 Connection Kit will connect easily to a feeder.
a. Check that the adapter and feeder outgoing guide,
as well as the drive roll, are appropriate for the elec­trode size being used.
b. 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.
c. Insert the control cable plug from the feeder trigger
circuit into the mating socket on the gun cable con­nector handle.
MAGNUM® 250 NR
C-1
OPERATION
C-1
ELECTRODES AND EQUIPMENT
The Magnum® 250 NR guns and cables have been designed for use with .035 thru .068 diameter Innershield electrodes. Refer to the appropriate Lincoln Process and Procedure Guidelines for the electrode used for information on recommended elec­trical stickouts.
MAKING A WELD
WARNING
Do not attempt to use this equipment until you have thoroughly read all operating and mainte­nance manuals supplied with your machine.They include important safety precautions, detailed engine starting, operating and maintenance instructions and parts lists.
ELECTRIC SHOCK can kill.
• Do not touch electrically live parts such as output terminals or internal wiring.
• Insulate yourself from the work and ground.
a. Check that the welding power source is on. b. Position electrode over joint. End of the electrode
should be slightly off the work.
c. Lower welding helmet. close gun trigger and begin
welding. Hold the gun so the contact tip to work distance gives the correct electrical stickout as required for the procedure being used.
d. To stop welding, release the gun trigger and then
pull the gun away from the work after the arc goes out. Follow wire feeder instruction manual if using a trigger interlock circuit.
AVOIDING WIRE FEEDING PROBLEMS
Wire feeding problems can be avoided by observing the following gun handling procedures:
a. Do not kink or pull cable around sharp corners. b. Keep the electrode cable as straight as possible
when welding or loading electrode through cable.
c. Avoid wrapping excess cable around handle or
front of wire feeder especially on longer 20 and 25 ft (6.1 and 7.6 mm) length guns.
• Always wear dry insulating gloves.
------------------------------------------------------------------------
FUMES AND GASES can be dangerous.
• Keep your head out of fumes.
• Use ventilation or exhaust to remove fumes from breathing zone.
------------------------------------------------------------------------
WELDING SPARKS can cause fire or explosion.
• Keep flammable material away.
------------------------------------------------------------------------
ARC RAYS can burn.
• Wear eye, ear and body protection.
------------------------------------------------------------------------
Only qualified personnel should operate this equipment.
d. Do not allow dolly wheels or trucks to run over
cables.
e. Keep cable clean by following maintenance
instructions.
f. Use only clean, rust-free electrode. The Lincoln
electrodes have proper surface lubrication.
g. Replace contact tip when the arc starts to become
unstable or the contact tip end is fused or deformed.
MAGNUM® 250 NR
D-1
MAINTENANCE
D-1
REMOVAL, INSTALLATION AND TRIMMING INSTRUCTIONS FOR MAGNUM LINERS
NOTE: The variation in cable lengths prevents the
interchangeability of liners. Once a liner has been cut for a particular 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.
a. Remove the nozzle insulator. b. Remove the gas less diffuser from gun. c. Lay gun and cable out straight on a flat surface. For all K466 except K466-3 and K466-4 Connections:
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. (REFER TO FIGURE 1 IN INSTALLATION FOR EACH)
<OR> For K466-3 and K466-4 CONNECTIONS: Remove the connector cap with the wrench provid-
ed. Pull liner out of cable. If the liner is going to be replaced with a different size liner, loosen set screw on the connector cap and remove piece of liner material.
d. For installation and trimming instructions for
Magnum liners see “LINER INSTALLATION” in INSTALLATION section.
GUN CABLES
CABLE CLEANING
Clean cable liner after using approximately 300 pounds (136 kg) of electrode. Remove the cable from the wire feeder 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 diffuser end.
CAUTION
Excessive pressure at the start may cause the dirt to form a plug.
------------------------------------------------------------------------
Flex the cable over its entire length and again blow out the cable. Repeat this procedure until no further dirt comes out.
CABLE REPAIR
The Magnum® 250 NR guns feature the use of repairable cable connectors. If the cable ever gets severely damaged. it may be cut shorter and repaired by the user. Repair cables as follows:
GUN TUBE END REPAIR (Requires 2 S19492-2 Terminals)
a. Remove the cable liner per Removal, Installation
and Trimming Instructions.
b. Remove the gun tube per Gun Tubes and Nozzles
Section.
GUN TUBES AND NOZZLES
a. Replace worn contact tips as required. b. To remove gun tube from gun, loosen socket-head
clamping screw in handle with 3/16” (4.8 mm) Allen wrench. Remove nozzle insulator and gas less dif­fuser.
Pull gun tube out from gun handle. To reinstall, insert the gun tube, push in as far as possible and retighten screws.
MAGNUM® 250 NR
c. Remove three #6 screws fr om the gun handle, sep-
arate the two halves, and remove the cable from the handle along with the trigger assembly.
d. Remove gun tube connector from cable by
unscrewing connector nut from gun tube connec­tor. If the cable inner tube is difficult to remove from the connector assembly, carefully slit it lengthwise with a knife up to the brass connector.
e. Uncouple the strain relief by pushing its outer
housing toward the middle of the cable. Move the strain relief and the cable boot toward the middle of the cable, past the damaged section.
f. Cut off the damaged section of cable and strip off
the outer jacket as shown in Figure 2. Be careful not to cut the insulation on the control wires while stripping jacket. Strip the red and white control leads 1/4 inch (6.4 mm) from the end and crimp a new S19492-2 terminal to each lead.
D-2
MAINTENANCE
CABLE
1.65 (41.9 mm) SKIN
Figure 2
D-2
.25" (6.4 mm) SKIN *
(BOTH CONTROL LEADS)
CONTROL LEAD
INNER TUBE
COPPER STRANDING
CONTROL LEAD
NOTE: The cable contains three control leads. Any two control leads can be used, provided the two colors used are the same at both ends. The extra lead is a spare that can be used if one of the other leads breaks.
g. Check that the cable boot and both halves of the
strain relief are on the cable. Slip the connector nut over the copper strands with the thread end out. Orient gun tube connector so machined flat is on the same side of the cable as the red and white control leads. Assemble gun tube connector to cable by forcing the steel tube of the connector into the inside diameter of the cable inner tube until the copper strands are butted against the gun tube connector shoulder. Keeping the copper strands against the shoulder, pull the connector nut over the copper strands, engage the gun tube connec­tor threads, and tighten in place. Refer to Figure 3.
NOTE: For best results, insert a .175”/.197” (4.5/
5.0 mm) diameter rod through the connector and into core of cable approximately 5.00 (127 mm) when pushing the connector tube into the cable core tube. To tighten, hold the connector in place while turning the nut, then remove the rod from the core. This procedure ensures the inner core does not kink while assembling or tightening.
h. Pull the cut-off lead terminals off the trigger assem-
bly and connect the replacement control lead ter­minals.
j. Position the cable boot and strain relief on the
cable so it fits in cable handle cavity and lock the strain relief in place by pushing the two halves together.
k. Assemble cable in left side of gun handle.
Assemble trigger into the proper handle cavity.
Figure 3
MAGNUM® 250 NR
D-3
MAINTENANCE
D-3
Assemble right side of gun handle and tighten the three screws that hold the handle together. Refer to Figure 4.
l. Install gun tube per Gun Tubes and Nozzles
Section.
m. Install and trim liner per Liner Installation Section.
WIRE FEEDER END REPAIR (Requires 2 S19492-1 Terminals)
a. Remove the cable liner per Removal, Installation,
and Trimming Instruction.
b. Remove the feeder end connector, molded gas
plug (or barbed fitting), cable handle nut, plastic tailpiece and connector cover (see Figure 5).
NOTE: In order to remove the cable handle nut, the tail of the connector cover must be depressed and the cable handle nut rotated 1/4 turn counterclock­wise as viewed from the feeder end.
c. Remove incoming connector from cable by
unscrewing connector nut from incoming connec­tor. If the cable inner tube is difficult to remove from the connector assembly, carefully slit it lengthwise
with a knife up to the brass connector.
d. Move the cable boot and cable handle toward the
middle of the cable past the damaged section.
e. Cut off the damaged section of cable and strip off
the outer jacket as shown in Figure 2. Be careful not to cut the insulation on the control wires while stripping jacket. Strip the red and white control leads 1/4 inch (6.4 mm) from the end and crimp a new S19492-1 terminal to each lead.
NOTE: The cable contains three control leads. Any two control leads can be used, provided the two colors used are the same at both ends. The extra lead is a spare that can be used if one of the other leads breaks.
f. Check that the cable boot and cable handle are on
the cable. Slip the connector nut over the copper strands with the threaded end out. Assemble incoming connector to cable by forcing the steel tube of the connector into the inside diameter of the cable inner tube until the copper strands are butted against the incoming connector shoulder. Keeping the copper strands against the shoulder, pull the connector nut over the copper strands, engage the incoming connector threads, and tight­en in place. Refer to Figure 3.
Figure 4
MAGNUM® 250 NR
D-4
MAINTENANCE
Figure 5
D-4
NOTE: For best results, insert a .175”/.197” (4.5/
5.0 mm) diameter rod through the connector and into core of cable approximately 5.00” (127 mm) when pushing the connector tube into the cable core tube. To tighten, hold the connector in place while turning the nut. then remove the rod from the core. This procedure ensures the inner core does not kink while assembling or tightening.
Position the plastic strain relief such that the tapered end is 4.56 (116 mm) from the incoming connector (see Figure 5). Lock into place with steel housing. Plastic strain relief may overhang cable jacket a maximum of .43".
g. Position cable boot and cable handle on cable and
assemble replacement control wire terminals in place on the cable handle. Insert connector cover in place. Install tailpiece and fasten to cable handle with cable handle nut. Refer to Figure 5.
h. Replace the molded gas plug (or barbed fitting) and
feeder end connector.
j. Install and trim liner per Liner Installation Section.
MAGNUM® 250 NR
D-5
3/8-24 THREAD
1/2-13 WITH .425 ROOT DIAMETER
1/4-28 THREAD
MAINTENANCE
THREAD SIZES FOR MAGNUM® 250 NR CONSUMABLES
D-5
MAGNUM® 250 NR
E-1
TROUBLESHOOTING
HOW TO USE TROUBLESHOOTING GUIDE
WARNING
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.
__________________________________________________________________________
This Troubleshooting Guide is provided to help you locate and repair possible machine malfunctions. Simply follow the three-step procedure listed below.
E-1
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 possibili­ties that may contribute to the machine symptom.
Step 3. RECOMMENDED COURSE OF ACTION
This column provides a course of action for the Possible Cause.
If you do not understand or are unable to perform the Recommended Course of Action safely, contact you local Lincoln Authorized Field Service Facility.
CAUTION
If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact your Local Lincoln Authorized Field Service Facility for technical troubleshooting assistance before you proceed.
MAGNUM® 250 NR
E-2
TROUBLESHOOTING
Observe all Safety Guidelines detailed throughout this manual
E-2
PROBLEMS
(SYMPTOMS)
Drive rolls turn, but wire will not feed or wire feeding is rough.
POSSIBLE CAUSE REMEDY
PROBLEMS
a. Gun cable kinked and/or twisted.
b. Wire jammed in gun and cable.
c. Incorrect drive rolls and guide
tubes.
d. Gun cable liner dirty.
e. Worn drive rolls.
f. Electrode rusty and/or dirty.
a. Keep as straight as possible.
Inspect cable and replace if necessary.
b. Remove wire from gun and cable
– feed in new wire. Note any obstruction. Replace liner if necessary.
c. Be sure the wire diameter being
used is stamped on drive rolls and guide tubes. Replace if nec­essary.
d. Clean liner or replace.
e. Replace or reverse split drive roll
type.
f. Replace the electrode if it is
rusty.
Variable or “hunting” arc.
g. Worn or improper size cable liner.
h. Partially flashed, melted or
improper size contact tip.
a. Contact tip worn or incorrect size.
b. Worn or undersize ground cables
or poor ground connections.
c. Loose electrode connections.
g. Replace cable liner.
h. Replace the contact tip.
a. Replace contact tip.
b. Inspect – repair or replace as
necessary.
c. Be sure the following connections
are tight: electrode cable to wire feeder and power source, work cable to power source and work, gun cable to wire feeder contact block, gun nozzle to body and contact tip to nozzle.
CAUTION
If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact your Local Lincoln Authorized Field Service Facility for technical troubleshooting assistance before you proceed.
MAGNUM® 250 NR
E-3
TROUBLESHOOTING
Observe all Safety Guidelines detailed throughout this manual
E-3
PROBLEMS
(SYMPTOMS)
Poor arc striking with sticking or “blast-offs”, weld porosity, narrow and ropy looking bead, or electrode stubbing into plate while welding.
Tip seizes in diffuser.
POSSIBLE CAUSE REMEDY
PROBLEMS
a. Improper procedures or
techniques.
b. Improper gas shielding.
a. Tip overheating due to prolonged
or excessive high current and/or duty cycle welding.
a. See “Gas Metal Arc Welding
Guide” (GS100).
b. Clean gas cone. Make certain
that gas diffuser is not restricted. Make certain that gas cylinder is not empty or turned off. Make certain gas solenoid valve is operating and gas flow rate is proper.
Remove gun liner and check rubber seal for any sign of deterioration or damage. Be sure set screw in brass connector is in place and tightened against the liner bushing.
a. Do not exceed current and duty
cycle rating of gun.
A light application of high temperature antiseize lubricant (such as Lincoln E2067 Graphite Grease) may be applied to tip threads.
CAUTION
If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact your Local Lincoln Authorized Field Service Facility for technical troubleshooting assistance before you proceed.
MAGNUM® 250 NR
P202-T
PARTS
MAGNUM®
250 NR
PARTS MANUAL
P202-T
This parts list is provided as an informative guide only.
This information was accurate at the time of printing. However, since these pages are regularly updated in Lincoln Electric’s official Parts Book (BK-34), always check with your Lincoln parts supplier for the latest parts information.
MAGNUM® 250 NR
PARTS
CHART A
Connector Kits
Product Feeder Power Lead and Connector Number Type Connector Connector Fitting Tools
K466-1 Lincoln
(2)
✔✔✔✔
K466-2 Tweco ——
Adapted &
Lincoln -10 Series
K466-3 Miller ✔✔—
K466-4 Hobart 27 ✔✔✔✔
K466-5 L-Tec ✔✔—
Adapted
K466-6 Wirematic ✔✔—
K466-7 Hobart ✔✔—
Seires 2000
K466-8 Lincoln
(3)
✔✔✔✔
K466-9 SP100T and ✔✔—
Related Units
(1)
See Magnum 250 NR Parts Manual for part numbers.
(2)
Except LN8 or LN9 using 1/16 and larger electrodes.
(3)
LN8 or LN9 using 1/16 and larger electrodes.
(1)
Trigger Gas Tube
CHART C
Part Number English Metric
Cable Liner (Industry Ref.) Wire Size Wire Size
For 15 ft (4.5 m) M16087-5 (42-3035-15) .030 - .035” 0.8-0.9 mm
and less M16087-1 (42-4045-15) .035 - .045” 0.9-1.2 mm
Trim to Fit M18997-1 .052 - .068” 1.3-1.7 mm
CHART B
Contact Tips/ Part Number English Metric
Gas Less Diffuser (Industry Ref.) Wire Size Wire Size
Standard Duty S19391-1 (14-35) .035” 0.9 mm
Heavy Duty S19392-1 (14H-35) .035” 0.9 mm
Tapered S19393-1 (14T-35) .035” 0.9 mm
Gas less Diffuser S24109-1 .035-.045” 0.9-1.2 mm
Nozzle Insulator T12313
(*)
Tip stencilled 1/16A
-8 (14-40) .040” 1.0 mm
-2 (14-45) .045” 1.2 mm
-3 (14-52) .052” 1.3 mm
-4 (14-116) 1/16” 1.6 mm
-6 (14H-40) .040” 1.0 mm
-2 (14H-45) .045” 1.2 mm
-3 (14H-52) .052” 1.3 mm
-4 (14H-116) 1/16” 1.6 mm
-8 (14AH-116) .068” * 1.7 mm*
-7 (14T-40) .040” 1.0 mm
-2 (14T-45) .045” 1.2 mm
-3 (14T-52) .052” 1.3 mm
-4 (14T-116) 1/16” 1.6 mm
S24109-2 .052-.068” 1.3-1.7 mm
MAGNUM® 250 NR
PARTS
PARTS LIST OF MAGNUM CONNECTOR KITS
Part No.
K466-1 Connector Kit (Lincoln Wire Feeders)
Gas Tubing T10642-127 Tubing Clamp (2 required) T13777-4 Connector Assembly, Includes: S18645
Set Screw S11604-51 Insulation Tube T7028-234 Gun Control Cable M15608 Hose Nipple T14557-7 Socket Key T11563-4 Wrench S18845
K466-2 Connector Kit (For Tweco Adapted Feeders & Lincoln -10 Series Feeders)
Connector Assembly, Includes: S18653
Set Screw S11604-51
“O” Ring (2 required) T13483-8 Socket Key T11563-4 Wrench S18845 Hair Spring Cotter Pin S19762
K466-3 Connector Kit (For Miller Feeders)
Connector Assembly (Miller), Includes: S19760
“O” Ring (2 required) T13483-8 Connector Cap Assembly (Miller), Includes: S19761
Set Screw S11604-51 Gun Control Assembly (Miller) M16325 Wrench S18845 Socket Key T11563-4 Liner Material - .045” (1.2 mm) maximum S18685-12 Liner Material - 1/16” (1.6 mm) maximum S18685-13 Liner Material - 5/64” (2.0 mm) maximum S18685-14
K466-4 Connector Kit (For Hobart Feeders)
Connector (Hobart) S19763 Connector Cap Assembly (Hobart), Includes: S19765
Set Screw S11604-51 Gun Control Assembly (Hobart) M16328 Wrench S18845 Socket Key T11563-4 Liner Material - .045” (1.2 mm) maximum S18685-15 Liner Material - 1/16” (1.6 mm) maximum S18685-16 Liner Material - 5/64” (2.0 mm) maximum S18685-17 Hose Nipple T14557-7 Tubing Clamps (2 required) T13777-4 Gas Tubing T10642-166
Part No.
K466-6 Connector Kit (Wirematic)
Connector Assembly, Includes: S18653
Set Screw S11604-51
“O” Ring (2 required) T13483-8 Gun Control Assembly M16325 Socket Key T11563-4 Wrench S18845
K466-7 Connector Kit (Hobart Series 2000)
Connector Assembly, Includes: S18653
Set Screw S11604-51
“O” Ring (2 required) T13483-8 Socket Key T11563-4 Wrench S18845 Gun Control Cable Assembly M18003
K466-8 Connector Kit (Lincoln Wire Feeders)
Gas Tubing T10642-127 Tubing Clamp (2 required) T13777-4 Connector Assembly, Includes: S18645-2
Set Screw S11604-51 Insulation Tube T7028-234 Gun Control Cable M15608 Hose Nipple T14557-7 Socket Key T11563-4 Wrench S18845
K466-9 Connector Kit (Lincoln SP100T, SP125 & SP170T)
Connector Assembly, Includes: S18653-2
Set Screw S11604-51
“O” Ring (2 required) T13483-8 Socket Key T11563-4 Wrench S18845 Gun Control Cable Assembly M18003
K466-5 Connector Kit (For L-Tec Adapted Feeders)
Connector Assembly (L-Tec), Includes: S20044
Set Screw S11604-51
“O” Ring (2 required) T13483-8 Socket Key T11563-4 Wrench S18845 Gun Control Assembly (L-Tec) M16520
MAGNUM® 250 NR
WARNING
Spanish
AVISO DE
PRECAUCION
Do not touch electrically live parts or
electrode with skin or wet clothing.
Insulate yourself from work and
ground.
No toque las partes o los electrodos
bajo carga con la piel o ropa moja­da.
Aislese del trabajo y de la tierra.
Keep flammable materials away.
Mantenga el material combustible
fuera del área de trabajo.
Wear eye, ear and body protection.
Protéjase los ojos, los oídos y el
cuerpo.
French
ATTENTION
German
WARNUNG
Portuguese
ATENÇÃO
Japanese
Chinese
Korean
Arabic
Ne laissez ni la peau ni des vête-
ments mouillés entrer en contact avec des pièces sous tension.
Isolez-vous du travail et de la terre.
Berühren Sie keine stromführenden
Teile oder Elektroden mit Ihrem Körper oder feuchter Kleidung!
Isolieren Sie sich von den
Elektroden und dem Erdboden!
Não toque partes elétricas e elec-
trodos com a pele ou roupa molha­da.
Isole-se da peça e terra.
Gardez à l’écart de tout matériel
inflammable.
Entfernen Sie brennbarres Material!
Mantenha inflamáveis bem guarda-
dos.
Protégez vos yeux, vos oreilles et
votre corps.
Tragen Sie Augen-, Ohren- und Kör-
perschutz!
Use proteção para a vista, ouvido e
corpo.
READ AND UNDERSTAND THE MANUFACTURER’S INSTRUCTION FOR THIS EQUIPMENT AND THE CONSUMABLES TO BE USED AND FOLLOW YOUR EMPLOYER’S SAFETY PRACTICES.
SE RECOMIENDA LEER Y ENTENDER LAS INSTRUCCIONES DEL FABRICANTE PARA EL USO DE ESTE EQUIPO Y LOS CONSUMIBLES QUE VA A UTILIZAR, SIGA LAS MEDIDAS DE SEGURIDAD DE SU SUPERVISOR.
LISEZ ET COMPRENEZ LES INSTRUCTIONS DU FABRICANT EN CE QUI REGARDE CET EQUIPMENT ET LES PRODUITS A ETRE EMPLOYES ET SUIVEZ LES PROCEDURES DE SECURITE DE VOTRE EMPLOYEUR.
LESEN SIE UND BEFOLGEN SIE DIE BETRIEBSANLEITUNG DER ANLAGE UND DEN ELEKTRODENEINSATZ DES HER­STELLERS. DIE UNFALLVERHÜTUNGSVORSCHRIFTEN DES ARBEITGEBERS SIND EBENFALLS ZU BEACHTEN.
Keep your head out of fumes.
Use ventilation or exhaust to
remove fumes from breathing zone.
Turn power off before servicing.
Do not operate with panel open or
guards off.
WARNING
Los humos fuera de la zona de res-
piración.
Mantenga la cabeza fuera de los
humos. Utilice ventilación o aspiración para gases.
Gardez la tête à l’écart des fumées.
Utilisez un ventilateur ou un aspira-
teur pour ôter les fumées des zones de travail.
Vermeiden Sie das Einatmen von
Schweibrauch!
Sorgen Sie für gute Be- und
Entlüftung des Arbeitsplatzes!
Mantenha seu rosto da fumaça.
Use ventilação e exhaustão para
remover fumo da zona respiratória.
Desconectar el cable de ali-
mentación de poder de la máquina antes de iniciar cualquier servicio.
Débranchez le courant avant l’entre-
tien.
Strom vor Wartungsarbeiten
abschalten! (Netzstrom völlig öff­nen; Maschine anhalten!)
Não opere com as tampas removidas.
Desligue a corrente antes de fazer
serviço.
Não toque as partes elétricas nuas.
No operar con panel abierto o
guardas quitadas.
N’opérez pas avec les panneaux
ouverts ou avec les dispositifs de protection enlevés.
Anlage nie ohne Schutzgehäuse
oder Innenschutzverkleidung in Betrieb setzen!
Mantenha-se afastado das partes
moventes.
Não opere com os paineis abertos
ou guardas removidas.
Spanish
AVISO DE
PRECAUCION
French
ATTENTION
German
WARNUNG
Portuguese
ATENÇÃO
Japanese
Chinese
Korean
Arabic
LEIA E COMPREENDA AS INSTRUÇÕES DO FABRICANTE PARA ESTE EQUIPAMENTO E AS PARTES DE USO, E SIGA AS PRÁTICAS DE SEGURANÇA DO EMPREGADOR.
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