Tweco 2460 User Manual

Heavy Duty CC/CV Semiautomatic Solid-State Control
Wire Feeder Model 2460
For the Following Specs:
6877A-1 4-Roll Drive, 40-600 IPM
6877B-1 4-Roll Drive, 40-600 IPM
6877A-2 4-Roll Drive, 20-300 IPM
6877B-2 4-Roll Drive, 20-300 IPM
OWNER’S MANUAL Number 430429-249 (Rev - AC)
Revised April 14, 2005
IMPORTANT: Readtheseinstructionsbeforeinstalling,operating,orservicingthissystem.
430429-249
Table of Contents
INTRODUCTION 1
How To Use This Manual ..................................1-1
Equipment Identification ..................................1-1
Receipt Of Equipment ...................................1-1
SAFETY INSTRUCTIONS AND WARNINGS 2 DESCRIPTION OF EQUIPMENT 3
General Description .....................................3-1
Current Capacity and Rating ................................3-1
Feedhead Assembly ....................................3-2
Tabulated Data .......................................3-2
Control Box Assembly ...................................3-2
Wire Reel Support Assembly ................................3-2
Baseplate ..........................................3-2
Options ...........................................3-2
OPERATION 4
Prewelding Checks .....................................4-1
Welding ...........................................4-1
PARTS LIST 5
Equipment Identification ..................................5-1
How To Use This Parts List .................................5-1
How To Select Recommended Spares ...........................5-1
CONTROL BOX ASSEMBLY NO. 376783A & 376783B TIP-218 FEEDHEAD ASSEMBLY NO. 376799A-1, -2, -3, -4 TIP-219 PARTS LIST FOR ASSEMBLY NO. 376799A-1, -2, -3, -4 MPL-224 BASE ASSEMBLY PART NO. 375769-1 & -4 TIP-127 WIRE SPOOL SUPPORT I-169 DIAGRAMS
December 1, 1997 Revised
INTRODUCTION
430429-249
INTRODUCTION
How To Use This Manual
This Owner’s Manual usually applies to just the under­lined specification or part numbers listed on the cover. If none are underlined, they are all covered by this manual.
To ensure safe operation, read the entire manual, includ­ing the chapter on safety instructions and warnings.
Throughout this manual, the words WARNING, CAUTION, and NOTE may appear. Pay particular atten­tion to the information provided under these headings. These special headings are easily recognized as follows:
WARNING
A WARNING gives information regarding
possible personal injury.
CAUTION
A CAUTION refers to possible equipment damage.
NOTE
A NOTE offers helpful information concerning cer­tain operating procedures.
Equipment Identification
The unit’s identification number (specification or part number), model, and serial number usually appear on a nameplate attached to the control panel. In some cases, the nameplate may be attached to the rear panel. Equip­ment which does not have a control panel such as gun and cable assemblies is identified only by the specifica­tion or part number printed on the shipping container. Record these numbers for future reference.
Receipt Of Equipment
When you receive the equipment, check it against the in­voice to make sure it is complete and inspect the equip­ment for possible damage due to shipping. If there is any damage, notify the carrier immediately to file a claim. Fur­nish complete information concerning damage claims or shipping errors to:
Thermadyne, Inc. Thermal Arc Order Department 82 Benning Street West Lebanon, New Hampshire, USA 03784
For more information, call (603) 298-5711.
Include all equipment identification numbers as described above along with a full description of the parts in error.
Move the equipment to the installation site before uncrating the unit. Use care to avoid damaging the equipment when using bars, hammers, etc., to uncrate the unit.
Additional copies of this manual may be purchased by contacting Thermal Arc at the address and phone number given in the next section. Include the Owner’s Manual number and equipment identification numbers.
Electronic copies of this manual can also be downloaded at no charge in Acrobat PDF format by going to the Ther­mal Arc web site listed below and clicking on the Litera­ture Library link:
http://www.thermadyne.com/tai
April14, 2005 Revised 1-1
ARC WELDING SAFETY INSTRUCTIONS AND WARNINGS
Instruction 830001
ARC WELDING SAFETY INSTRUCTIONS AND WARNINGS
ARC WELDING can be hazardous.
PROTECT YOURSELF AND OTHERS FROM POSSIBLE SERIOUS INJURY OR DEATH. KEEP CHILDREN AWAY. PACEMAKER WEARERSKEEP AWAY UNTIL CONSULTING YOUR DOCTOR. DO NOT LOSETHESEINSTRUCTIONS. READ OPERATING/INSTRUC­TION MANUAL BEFORE INSTALLING, OPERATING OR SERVICING THIS EQUIPMENT.
Welding products and welding processes can cause serious injury or death, or damage to other equipment or property, if the operator does not strictly observe all safety rules and take precautionary actions.
Safe practices have developed from past experience in the use of welding and cutting. These practices must be learned through study and training before using this equipment. Anyone not having extensive training in welding and cutting practices should not attempt to weld. Certain of the practices apply to equipment connected to power lines; other practices apply to engine driven equipment.
Safe practices are outlined in the American National Standard Z49.1 entitled: other guides to what you should learn before operating this equipment are listed at the end of these safety precautions.
HAVE ALL INSTALLATION, OPERATION, MAINTENANCE, AND REPAIR WORK PERFORMED ONLY BY QUALIFIED PEOPLE.
ELECTRIC SHOCK can kill.
Touching live electrical parts can cause fatal shocks or severe burns. The electrode and work circuit is electrically live whenever the output is on. The input power circuit and machine internal circuits are also live when power is on. In semiautomatic or automatic wire welding, the wire, wire reel, drive roll housing, and all metal parts touching the welding wire are electrically live. Incorrectly installed or improperly grounded equipment is a hazard.
1. Do not touch live electrical parts.
2. Wear dry, hole-free insulating gloves and body protection.
3. Insulate yourself from work and ground using dry insulating mats or covers.
4. Disconnect input power or stop engine before installing or serv­icing this equipment. Lock input power disconnect switch open, or remove line fuses so power cannot be turned on accidentally.
5. Properly install and ground this equipment according to its Owner’s Manual and national, state, and local codes.
SAFETY IN WELDING AND CUTTING. This publication and
6. Turn off all equipment when not in use. Disconnect power to equipment if it will be left unattended or out of service.
7. Use fully insulated electrode holders. Never dip holder in water to cool it or lay it down on the ground or the work surface. Do not touch holders connected to two welding machines at the same time or touch other people with the holder or electrode.
8. Do not use worn, damaged, undersized, or poorly spliced cables.
9. Do not wrap cables around your body.
10. Ground the workpiece to a good electrical (earth) ground.
11. Do not touch electrode while in contact with the work (ground) circuit.
12. Use only well-maintained equipment. Repairor replace damaged parts at once.
13. In confined spaces or damp locations, do not use a welder with AC output unless it is equipped with a voltage reducer. Use equipment with DC output.
14. Wear a safety harness to prevent falling if working above floor level.
15. Keep all panels and covers securely in place.
ARC RAYS can burn eyes and skin; NOISE can damage hearing.
Arc rays from the welding process produce intense heat and strong ultraviolet rays that can burn eyes and skin. Noise from some processes can damage hearing.
Eye protection filter shade selector for welding or cutting (goggles or helmet), from AWS A6.2-73.
Welding or Cutting
Operation
Torch soldering Torch brazing Oxygen cutting
Light Medium Heavy
Gas welding
Light Medium
Heavy Shielded metal-arc welding (stick) electrodes
Electrode Size
Metal Thickness
or Welding Current
— —
Under 1 in., 25 mm
1 to 6 in., 25-150 mm
Over 6 in., 150 mm
Under 1/8 in., 3 mm
1/8 to 1/2 in., 3-12 mm
Over 1/2 in., 12 mm
Under 5/32 in., 4 mm
5/32 to 1/4 in., 4 to 6.4 mm
Over 1/4 in., 6.4 mm
Filter
Shade
No.
2
3or4
3or4 4or5 5or6
4or5 5or6 6or8
10 12 14
1. Wear a welding helmet fitted with a proper shade of filter (see ANSI Z49.1 listed in Safety Standards) to protect your face and eyes when welding or watching.
2. Wear approved safety glasses. Side shields recommended.
3. Use protective screens or barriers to protect others from flash and glare; warn others not to watch the arc.
4. Wear protective clothing made from durable, flame-resistant material (wool and leather) and foot protection.
5. Use approved ear plugs or ear muffs if noise level is high.
Welding or Cutting
Operation
Gas metal-arc welding (MIG)
Non-ferrous base metal
Ferrous base metal Gas tungsten arc welding (TIG) Atomic hydrogen welding Carbon arc welding Plasma arc welding Carbon arc air gouging
Light
Heavy Plasma arc cutting
Light
Medium
Heavy
Electrode Size
Metal Thickness
or Welding Current
All All All All All All
Under 300 Amp
300 to 400 Amp
Over 400 Amp
May 8, 1996 2-1
Filter
Shade
No.
11 12 12 12 12 12
12 14
9 12 14
ARC WELDING SAFETY INSTRUCTIONS AND WARNINGS Instruction 830001
FUMES AND GASES can be hazardous to your health.
Welding produces fumes and gases.Breathing these fumes and gases can be hazardous to your health.
1. Keep your head out of the fumes. Do not breath the fumes.
2. If inside, ventilate the area and/or use exhaust at the arc to remove welding fumes and gases.
3. If ventilation is poor, use an approved air-supplied respirator.
WELDING can cause fire or explosion.
Sparks and spatter fly off from the welding arc. The flying sparks and hot metal, weld spatter, hot work­piece, and hot equipment can cause fires and burns. Accidental contact of electrode or welding wire to metal objects can cause sparks, overheating, or fire.
1. Protect yourself and others from flying sparks and hot metal.
2. Do not weld where flying sparks can strike flammable material.
3. Remove all flammables within 35 ft (10.7 m) of the welding arc. If this is not possible, tightly cover them with approved covers.
4. Be alert that welding sparks and hot materials from welding can easily go through small cracks and openings to adjacent areas.
4. Read the Material Safety Data Sheets (MSDSs) and the manu­facturer’s instruction for metals, consumables, coatings, and cleaners.
5. Work in a confined space only if it is well ventilated, or while wearing an air-supplied respirator. Shielding gases used for welding can displace air causing injury or death. Be sure the breathing air is safe.
6. Do not weld in locations near degreasing, cleaning, or spraying operations. The heat and rays of the arc can react with vapors to form highly toxic and irritating gases.
7. Do not weld on coated metals, such as galvanized, lead, or cadmium plated steel, unless the coating is removed from the weld area, the area is well ventilated, and if necessary, while wearing an air-supplied respirator. The coatings and any metals containing these elements can give off toxic fumes if welded.
5. Watch for fire, and keep a fire extinguisher nearby.
6. Be aware that welding on a ceiling, floor, bulkhead, or partition can cause fire on the hidden side.
7. Do not weld on closed containers such as tanks or drums.
8. Connect work cable to the work as close to the welding area as practical to prevent welding current from traveling long, possibly unknown paths and causing electric shock and fire hazards.
9. Do not use welder to thaw frozen pipes.
10. Remove stick electrode from holder or cut off welding wire at contact tip when not in use.
11. Wear oil-free protective garments such as leather gloves, heavy shirt, cuffless trousers, high shoes, and a cap.
FLYING SPARKS ANDHOTMETAL can cause injury.
Chipping and grinding cause flying metal. As welds cool, they can throw off slag.
CYLINDERS can explode if damaged.
Shielding gas cylinders contain gas under high pres­sure. If damaged, a cylinder can explode. Since gas cylinders are normally part of the welding process, be sure to treat them carefully.
1. Protect compressed gas cylinders from excessive heat, mechani­cal shocks, and arcs.
2. Install and secure cylinders in an upright position by chaining them to astationarysupportorequipmentcylinderracktoprevent falling or tipping.
ENGINE EXHAUST GASES can kill.
Engines produce harmful exhaust gases.
1. Wear approved face shield or safety goggles. Side shields rec­ommended.
2. Wear proper body protection to protect skin.
3. Keep cylinders away from any welding or other electrical circuits.
4. Never allow a welding electrode to touch any cylinder.
5. Use only correct shielding gas cylinders, regulators, hoses, and fittings designed for the specific application; maintain them and associated parts in good condition.
6. Turn face away from valve outlet when opening cylinder valve.
7. Keep protective cap in place over valve except when cylinder is in use or connected for use.
8. Read and follow instructions on compressed gas cylinders, asso­ciated equipment, and CGA publication P-1 listed in Safety Standards.
ENGINES can be hazardous.
1. Use equipment outside in open, well-ventilated areas.
2. If used in a closed area, vent engine exhaust outside and away from any building air intakes.
2-2 May 8, 1996
ARC WELDING SAFETY INSTRUCTIONS AND WARNINGS
Instruction 830001
ENGINE FUEL can cause fire or explosion.
Engine fuel is highly flammable.
1. Stop engine before checking or adding fuel.
MOVING PARTS can cause injury.
Moving parts, such as fans, rotors, and belts can cut fingers and hands and catch loose clothing.
1. Keep all doors, panels, covers, and guards closed and securely in place.
2. Stop engine before installing or connecting unit.
SPARKS can cause BATTERY GASES TO EXPLODE; BATTERY ACID can burn eyes and skin.
Batteries contain acid and generate explosive gases.
STEAM AND PRESSURIZED HOT COOLANT can burn face, eyes, and skin.
The coolant in the radiator can be very hot and under pressure.
WARNING: This product, when used for welding or cutting, produces fumes or gases which contain chemicals known to the State of California to cause birth defects and, in some cases, cancer. (California Health & Safety Code Sec. 25249.5 et seq.)
NOTE: Considerations About Welding And The Effects Of Low Frequency Electric And Magnetic Fields
The following is a quotation from the General Conclusions Section of the U.S. Congress, Office of Technology Assessment, of Power Frequency Electric & Magnetic Fields — Background Paper, OTA-BP-E-63 (Washington, DC: U.S. Government Printing Office, May
1989): “... there is now a very large volume of scientific findings based on experiments at the cellular level and from studies with animals and people which clearly establish that low frequency magnetic fields can interact with, and produce changes in, biological systems. While most of this work is of very high quality, the results are complex. Current scientific understanding does not yet allow us to interpret the evidence in a single coherent framework. Even more frustrating, it does not yet allow us to draw definite conclusions about questions of possible risk or to offer clear science-based advice on strategies to minimize or avoid potential risks.”
To reduce magnetic fields in the workplace, use the following procedures:
1. Keep cables close together by twisting or taping them.
2. Arrange cables to one side and away from the operator.
2. Do not addfuel while smoking or if unit is near anysparks or open flames.
3. Allow engine to cool before fueling. If possible, check and add fuel to cold engine before beginning job.
4. Do not overfill tank — allow room for fuel to expand.
5. Do not spill fuel. If fuel is spilled, clean up before starting engine.
3. Have only qualified people remove guards or covers for mainte-
nance and troubleshooting as necessary.
4. To prevent accidental starting during servicing, disconnect nega-
tive (-) battery cable from battery.
5. Keep hands, hair, loose clothing, and tools away from moving
parts.
6. Reinstall panels or guards and close doors when servicing is
finished and before starting engine.
1. Always wear a face shield when working on a battery.
2. Stop engine before disconnecting or connecting battery cables.
3. Do not allow tools to cause sparks when working on a battery.
4. Do not use welder to charge batteries or jump start vehicles.
5. Observe correct polarity (+ and –) on batteries.
1. Do not remove radiator cap when engine is hot. Allow engine to
cool.
2. Wear gloves and put a rag over cap area when removing cap.
3. Allow pressure to escape before completely removing cap.
Biological Effects
3. Do not coil or drape cables around the body.
4. Keep welding power source and cables as far away from body as practical.
About Pacemakers:
The above procedures are among those also normally recommended for pacemaker wearers. Consult your doctor for complete information.
PRINCIPAL SAFETY STANDARDS
Safety in Welding and Cutting, ANSI Standard Z49.1, from American Welding Society, 550 N.W. LeJeune Rd., Miami, FL 33126.
Safety and Health Standards, OSHA 29 CFR 1910, from Superinten­dent of Documents, U.S. Government Printing Office, Washington, D.C. 20402.
Recommended Safe Practices for the Preparation for Welding and Cutting of Containers That Have Held Hazardous Substances, Ameri­can Welding Society Standard AWS F4.1, from American Welding Society, 550 N.W. LeJeune Rd., Miami, FL 33126.
National Electrical Code, NFPA Standard 70, from National Fire Protection Association, Batterymarch Park, Quincy, MA 02269.
Safe Handling of Compressed Gases in Cylinders, CGA Pamphlet P-1, from Compressed Gas Association, 1235 Jefferson Davis High­way, Suite 501, Arlington, VA 22202.
Code for Safety in Welding and Cutting, CSA Standard W117.2, from Canadian Standards Association, Standards Sales, 178 Rexdale Boulevard, Rexdale, Ontario, Canada M9W 1R3.
Safe Practices for Occupation and Educational Eye and Face Pro­tection, ANSI Standard Z87.1, from American National Standards Institute, 1430 Broadway, New York, NY 10018.
Cutting and Welding Processes, NFPA Standard 51B, from National Fire Protection Association, Batterymarch Park, Quincy, MA 02269.
May 8, 1996 2-3
ARC WELDING SAFETY INSTRUCTIONS AND WARNINGS Instruction 830001
This page intentionally left blank.
2-4 May 8, 1996
PRECAUTIONS DE SECURITE EN SOUDAGE A L'ARC
Instruction 830002
PRECAUTIONS DE SECURITE EN SOUDAGE A L′ARC
LE SOUDAGE A LARC EST DANGEREUX
PROTEGEZ-VOUS,AINSI QUE LES AUTRES, CONTRE LES BLESSURES GRAVES POSSIBLES OU LA MORT. NE LAISSEZ PAS LES ENFANTSS’APPROCHER,NI LES PORTEURS DE STIMULATEURCARDIAQUE(AMOINS QU’ILS N’AIENT CONSULTE UN MEDECIN). CONSERVEZ CES INSTRUCTIONS. LISEZ LE MANUEL D’OPERATION OU LES INSTRUCTIONS AVANT D’INSTALLER, UTILISER OU ENTRETENIR CET EQUIPEMENT.
Les produits et procédés de soudage peuvent sauser des blessures graves ou la mort, de même que des dommages au reste du matériel et à la propriété,sil’utilisateur n’adhère pas strictement à toutes les règles de sécurité et ne prend pas les précautions nécessaires.
En soudage et coupage, des pratiques sécuritaires se sont développées suite à l’expérience passée. Ces pratiques doivent être apprises par étude ou entraînement avant d’utiliser l’equipement. Toute personne n’ayant pas suivi un entraînement intensif en soudage et coupage ne devrait pas tenter de souder. Certaines pratiques concernent les équipements raccordés aux lignes d’alimentation alors que d’autres s’adressent aux groupes électrogènes.
La norme Z49.1 de l’American National Standard, intitulée “SAFETY IN WELDING AND CUTTING” présente les pratiques sécuritaires à suivre. Ce document ainsi que d’autres guides que vous devriez connaître avant d’utiliser cet équipement sont présentés à la fin de ces instructions de sécurité.
SEULES DES PERSONNES QUALIFIEES DOIVENT FAIRE DES TRAVAUX D’INSTALLATION, DE REPARATION, D’ENTRETIEN ET D’ESSAI.
L’ELECTROCUTION PEUT ETRE MORTELLE.
Une décharge électrique peut tuer ou brûler grave­ment. L’électrode et le circuit de soudage sont sous tension dès la mise en circuit. Le circuit d’alimenta­tion et les circuits internes de l’équipement sont aussi sous tension dès la mise en marche. En soudage automatique ou semi-automatique avec fil, ce dernier, le rouleau ou la bobine de fil, le logement des galets d’entrainement et toutes les pièces métalliques en contact avec le fil de soudage sont sous tension. Un équipement inadéquatement
installé ou inadéquatement mis à la terre est dangereux.
1. Ne touchez pas à des pièces sous tension.
2. Portez des gants et des vêtements isolants, secs et non troués.
3. Isolez-vous de la pièce à souder et de la mise à la terre au moyen de tapis isolants ou autres.
4. Déconnectez la prise d’alimentation de l’équipement ou arrêtez le moteur avant de l’installer ou d’en faire l’entretien. Bloquez le commutateur en circuitouvert ou enlevez les fusibles de l’alimen­tation afin d’éviter une mise en marche accidentelle.
5. Veuillez à installer cet équipement et à le mettre à la terre selon le manuel d’utilisation et les codes nationaux, provinciaux et locaux applicables.
LE RAYONNEMENT DE LARC PEUT BRÛLER LES YEUX ET LA PEAU; LE BRUIT PEUT ENDOMMAGER LOUIE.
L’arc de soudage produit une chaleur et des rayons ultraviolets intenses, susceptibles de brûler les yeux et la peau. Le bruit causé par certains procédés peut endommager l’ouïe.
1. Portez une casque de soudeur avec filtre oculaire de nuance appropriée (consultez la norme ANSI Z49 indiquéeci-après)
6. Arrêtez tout équipement après usage. Coupez l’alimentation de l’équipement s’il est hors d’usage ou inutilisé.
7. N’utilisez quedes porte-électrodesbienisolés.Nejamaisplonger les porte-électrodes dans l’eau pour les refroidir. Ne jamais les laisser traîner par terre ou sur les pièces à souder. Ne touchez pas aux porte-électrodes raccordés à deux sources de courant en même temps. Ne jamais toucher quelqu’un d’autre avec l’électrode ou le porte-électrode.
8. N’utilisez pas de câbles électriques usés, endommagés, mal épissés ou de section trop petite.
9. N’enroulez pas de câbles électriques autour de votre corps.
10. N’utilisez qu’une bonne prise de masse pour la mise à la terre de la pièce à souder.
11. Ne touchez pas à l’électrode lorsqu’en contact avec le circuit de soudage (terre).
12. N’utilisez que des équipements en bon état. Réparez ou rem­placez aussitôt les pièces endommagées.
13. Dans des espaces confinés ou mouillés, n’utilisez pas de source de courant alternatif, à moins qu’il soit muni d’un réducteur de tension. Utilisez plutôt une source de courant continu.
14. Portez un harnais de sécurité si vous travaillez en hauteur.
15. Fermez solidement tous les panneaux et les capots.
pour vous protéger le visage et les yeux lorsque vous soudez ou que vous observez l’exécution d’une soudure.
2. Portez des lunettes de sécurité approuvées. Desécrans latéraux sont recommandés.
3. Entourez l’aire de soudage de rideaux ou de cloisons pour protéger les autres des coups d’arcoudel’éblouissement; avertissez les observateurs de ne pas regarder l’arc.
4. Portez des vêtements en matériaux ignifuges et durables (laine et cuir) et des chaussures de sécurité.
5. Portez un casque antibruit ou des bouchons d’oreille approuvés lorsque le niveau de bruit est élevé.
8-V-96 2-1
PRECAUTIONS DE SECURITE EN SOUDAGE A L'ARC Instruction 830002
SELECTION DES NUANCES DE FILTRES OCULAIRES POUR LA PROTECTION DES YEUX EN COUPAGE ET SOUDAGE
Opération
de
Coupage ou soudage
Brasage tendre au chalumeau Brasage fort au chalumeau Oxycoupage
mince moyen épais
Soudage aux gaz
mince moyen
épais Soudage à l’arc avec electrode enrobées (SMAW)
Soudage à l’arc sous gaz avec fil plein (GMAW)
métaux non-ferreux
métaux ferreux Soudage à l’arc sous gaz avec électrode de tungstène (GTAW) Soudage à l’hydrogène atomique (AHW) Soudage à l’arc avec électrode de carbone (CAW) Soudage à l’arc Plasma (PAW) Gougeage Air-Arc avec électrode de carbone
mince
épais Coupage à l’arc Plasma (PAC)
mince
moyen
épais
( selon AWS A 8.2-73 )
Dimension d’électrode ou
Epaisseur de métal ou
Intensité de courant
toutes conditions toutes conditions
moins de 1 po. (25 mm)
de 1 à 6 po. (25 à 150 mm)
plus de 6 po. (150 mm)
moins de 1/8 po. (3 mm)
de 1/8 à 1/2 po. (3 à 12 mm)
plus de 1/2 po. (12 mm)
moins de 5/32 po. (4 mm)
de 5/32 à 1/4 po. (4 à 6.4 mm)
plus de 1/4 po. (6.4 mm)
toutes conditions toutes conditions
toutes conditions
toutes conditions
toutes conditions
toutes dimensions
moins de 300 ampères
de 300 à 400 ampères
plus de 400 ampères
Nuance de
de filtre
oculaire
2
3 ou 4
2 ou 3 4 ou 5 5 ou 6
4 ou 5 5 ou 6 6 ou 8
10 12 14
11 12
12
12
12 12
12 14
12 14
9
LES VAPEURS ET LES FUMEES SONT DANGEREUSES POUR LA SANTE.
Le soudage dégage des vapeurs et des fumées dangereuses à respirer.
1. Eloignez la tête des fumées pour éviter de les respirer.
2. A l’intérieur, assurez-vous que l’aire de soudage est bien ven­tilée ou que les fumées et les vapeurs sont aspirées à l’arc.
3. Si la ventilation est inadequate, portez un respirateur à adduc­tion d’air approuvé.
4. Lisez les fiches signalétiques et les consignes du fabricant relatives aux métaux, aux produits consummables, aux revête­ments et aux produits nettoyants.
5. Ne travaillez dans un espace confiné que s’il est bien ventilé; sinon, portez un respirateur à adduction d’air. Les gaz protec­teurs de soudage peuvent déplacer l’oxygène de l’air et ainsi causer des malaises ou la mort. Assurez-vous que l’air est propre à la respiration.
6. Ne soudez pas à proximité d’opérations de dégraissage, de nettoyage ou de pulvérisation. La chaleur et les rayons de l’arc peuvent réagir avec des vapeurs et former des gaz hautement toxiques et irritants.
7. Ne soudez des tôles galvanisées ou plaquées au plomb ou au cadmium que si les zones à souder ont été grattées à fond, que si l’espace est bien ventilé;sinécessaire portez un respirateur à adduction d’air. Car ces revêtements et tout métal qui contient ces éléments peuvent dégager desfuméestoxiquesau moment du soudage.
2-2 8-V-96
PRECAUTIONS DE SECURITE EN SOUDAGE A L'ARC
Instruction 830002
LE SOUDAGE PEUT CAUSER UN IN­CENDIE OU UNE EXPLOSION
L’arc produit des étincellies et des projections. Les particules volantes, le métal chaud, les projections de soudure et l’équipement surchauffé peuvent causer un incendie et des brûlures. Le contact
accidentel de l’électrode ou du fil-électrode avec un objet métallique peut provoquer des étincelles, un échauffement ou un incendie.
1. Protégez-vous, ainsi que les autres, contre les étincelles et du métal chaud.
2. Ne soudez pas dans un endroit où des particules volantes ou des projections peuvent atteindre des matériaux inflammables.
3. Enlevez toutes matières inflammables dans un rayon de 10, 7 mètres autour de l’arc, ou couvrez-les soigneusement avec des bâches approuvées.
LES ETINCELLES ET LES PROJEC­TIONS BRULANTES PEUVENT CAUSER DES BLESSURES.
LES BOUTEILLES EN DOMMAGEES PEUVENT EXPLOSER
Les bouteilles contiennent des gaz protecteurs sous haute pression. Des bouteilles endommagées peuvent exploser. Comme les bouteilles font nor­malement partie du procédé de soudage, traitez­les avec soin.
1. Protégez les bouteilles de gaz comprimé contre les sources de chaleur intense, les chocs et les arcs de soudage.
2. Enchainez verticalement les bouteilles à un support ou à un cadre fixe pour les empêcher de tomber ou d’être renversées.
3. Eloignez les bouteilles de tout circuit électrique ou de tout soudage.
4. Méfiez-vous des projections brulantes de soudage susceptibles de pénétrer dans des aires adjacentes par de petites ouvertures ou fissures.
5. Méfiez-vous des incendies et gardez un extincteur à portéede la main.
6. N’oubliez pas qu’une soudure réalisée sur un plafond, un plancher, une cloison ou une paroi peut enflammer l’autre côté.
7. Ne soudez pas un récipient fermé, tel un réservoir ou un baril.
8. Connectez le câble de soudage le plus près possible de la zone de soudage pour empêcher le courant de suivre un long par­cours inconnu, et prévenir ainsi les risques d’électrocution et d’incendie.
9. Ne dégelez pas les tuyaux avec un source de courant.
10. Otez l’électrode du porte-électrode ou coupez le fil au tube-con­tact lorsqu’inutilisé après le soudage.
11. Portez des vêtements protecteurs non huileux, tels des gants en cuir, une chemise épaisse, un pantalon revers, des bottines de sécurité et un casque.
Le piquage et le meulage produisent des particules métalliques volantes. En refroidissant, la soudure peut projeter du éclats de laitier.
1. Portez un écran facial ou des lunettes protectrices approuvées. Des écrans latéraux sont recommandés.
2. Portez des vêtements appropriés pour protéger la peau.
4. Empêchez tout contact entre une bouteille et une électrode de soudage.
5. N’utilisez que des bouteilles de gaz protecteur, des détendeurs, des boyauxs et des raccords conçus pour chaque application spécifique; ces équipements et les pièces connexes doivent être maintenus en bon état.
6. Ne placez pas le visage face à l’ouverture du robinet de la bouteille lors de son ouverture.
7. Laissez en place le chapeau de bouteille sauf si en utilisation ou lorsque raccordé pour utilisation.
8. Lisez et respectez les consignes relatives aux bouteilles de gaz comprimé et aux équipements connexes, ainsi que la publica­tion P-1 de la CGA, identifiée dans la liste de documents ci-dessous.
LES MOTEURS PEUVENT ETRE DANGEREUX
LES GAZ D’ECHA PPEMENT DES MOTEURS PEUVENT ETRE MORTELS.
Les moteurs produisent des gaz d’échappement nocifs.
LE CARBURANT PEUR CAUSER UN IN­CENDIE OU UNE EXPLOSION.
Le carburant est hautement inflammable.
1. Arrêtez le moteur avant de vérifier le niveau de carburant ou de faire le plein.
1. Utilisez l’équipement à l’extérieur dans des aires ouvertes et bien ventilées.
2. Si vous utilisez ces équipements dans un endroit confiné, les fumées d’échappement doivent être envoyées à l’extérieur, loin des prises d’air du bâtiment.
2. Ne faites pas le plein en fumant ou proche d’une source d’étincelles ou d’une flamme nue.
3. Si c’est possible, laissez le moteur refroidir avant de faire le plein de carburant ou d’en vérifier le niveau au début du soudage.
4. Ne faites pas le plein de carburant à ras bord: prévoyez de l’espace pour son expansion.
5. Faites attention de ne pas renverser de carburant. Nettoyez tout carburant renversé avant de faire démarrer le moteur.
8-V-96 2-3
PRECAUTIONS DE SECURITE EN SOUDAGE A L'ARC Instruction 830002
DES PIECES EN MOUVEMENT PEU­VENT CAUSER DES BLESSURES.
Des pièces en mouvement, tels des ventilateurs, des rotors et des courroies peuvent couper doigts et mains, ou accrocher des vêtements amples.
1. Assurez-vous que les portes, les panneaux, les capots et les protecteurs soient bien fermés.
2. Avant d’installer ou de connecter un système, arrêtez le moteur.
DESETINCELLESPEUVENTFAIRE EX­PLOSER UN ACCUMULATEUR; L’ELECTROLYTE D’UN ACCUMU­LATEUR PEUT BRULER LA PEAU ET LES YEUX.
Les accumulateurs contiennent de l’électrolyte acide et dégagent des vapeurs explosives.
LA VAPEUR ET LE LIQUIDE DE RE­FROIDISSEMENT BRULANT SOUS PRESSION PEUVENT BRULER LA PEAU ET LES YEUX.
Le liquide de refroidissement d’un radiateur peut être brûlant et sous pression.
3. Seules des personnes qualifiées doivent démonter des protec­teurs ou des capots pour faire l’entretien ou le dépannage nécessaire.
4. Pour empêcher un démarrage accidentel pendant l’entretien, débranchez le câble d’accumulateur à la borne négative.
5. N’approchez pas les mains ou les cheveux de pièces en mou­vement; elles peuvent aussi accrocher des vêtements amples et des outils.
6. Réinstallez les capots ou les protecteurs et fermez les portes après des travaux d’entretien et avant de faire démarrer le moteur.
1. Portez toujours un écran facial en travaillant sur un accumu-
lateur.
2. Arrêtez le moteur avant de connecter ou de déconnecter des
câbles d’accumulateur.
3. N’utilisez que des outils anti-étincelles pour travailler sur un
accumulateur.
4. N’utilisez pas une source de courant de soudage pour charger
un accumulateur ou survolter momentanément un véhicule.
5. Utilisez la polarité correcte (+ et –) de l’accumulateur.
1. N’ôtez pas le bouchon de radiateur tant que le moteur n’est pas
refroidi.
2. Mettez des gants et posez un torchon sur le bouchon pour l’ôter.
3. Laissez la pression s’échapper avant d’ôter complètement le
bouchon.
PRINCIPALES NORMES DE SECURITE
Safety in Welding and Cutting,norme ANSI Z49.1, American Welding Society, 550 N.W. LeJeune Rd., Miami, FL 33128.
Safety and Health Standards, OSHA 29 CFR 1910, Superintendent of Documents, U.S. Government Printing Office, Washington, D.C.
20402.
Recommended Safe Practices for the Preparation for Welding and Cutting of Containers That Have HeldHazardous Substances, norme AWS F4.1, American Welding Society, 550 N.W. LeJeune Rd., Miami, FL 33128.
National Electrical Code, norme 70 NFPA, National Fire Protection Association, Batterymarch Park, Quincy, MA 02269.
Safe Handling of Compressed Gases in Cylinders, document P-1, Compressed Gas Association, 1235 Jefferson Davis Highway, Suite 501, Arlington, VA 22202.
Code for Safety in Welding and Cutting, norme CSA W117.2 Asso­ciation canadienne de normalisation, Standards Sales, 276 Rexdale Boulevard, Rexdale, Ontario, Canada M9W 1R3.
Safe Practices for Occupation and Educational Eye and Face Pro­tection, norme ANSI Z87.1, American National Standards Institute, 1430 Broadway, New York, NY 10018.
Cutting and Welding Processes, norme 51B NFPA, National Fire Protection Association, Batterymarch Park, Quincy, MA 02269.
2-4 8-V-96
DESCRIPTION OF EQUIPMENT
DESCRIPTION OF EQUIPMENT
430429-249
General Description
The Model 2460 Heavy Duty CC/CV Wire Feeder is designed to control the linear movement of 1/8 inch (3.2 mm) diameter (or less) tubular welding electrode or 3/32 inch diameter (or less) solid weld­ing electrode. The basic feeder has been designed for self-shielding welding electrode and does not have a gas solenoid.
For use of non self-shielding electrode, optional gas solenoids are available and may be installed in this portable feeder.
Metal Inert Gas (MIG) welding process joins metal parts by electric arc which is established between a filler metal (consumable welding wire) and the work. The combination of the consumable wire with the parent metal forms the weld.
This wire feeder may be used with either a con­stant-voltage or constant-current type welding ma­chine. A transformer-rectifier, motor-generator, or engine-driven welding machine may be used.
Current Capacity and Rating
The welding current on this equipment is passed through the feedhead assembly. Care must be taken to make sure that the connections between the feedhead and the power source connecting cable as well as between the feedhead and gun cable assembly connector are tight. Loose connec­tions cause excessive heating and must be avoided.
This feeder uses arc voltage for its power. The cable connection between the feedhead and the power source also provide a power connection for the feeder control. The other power connection is made through the voltage sensing lead which must be connected to the work terminal. Care must be taken to make sure that the power cable connection is made between the power source and work. If this connection is not made, and an attempt is made to strike an arc, serious damage to the feeder will occur. By taking power from the welding arc, two modes of operation result. These are termed CC and CV mode. When a constant voltage power source is used, the input voltage to the feeder remains constant and a fixed wire feed speed will result for agiven dial selection on the feeder. If either the power source voltage setting or the feeder set­ting are changed, the output speed will change. This is called CV mode of operation. When a constant
current power source is used, the arc voltage will vary and as a result, the wire feed speed will vary for a fixed dial setting on the feeder. This is called CC mode of operation. When a constant current power source is used, an increase in arc voltage will cause an increase in wire feed speed, but an in­crease in wire feed speed causes a decrease in arc voltage. This results in a self-regulating system so that the feeder keeps the arc voltage constant by varying the wire feed speed as the arc attempts to fluctuate. A switch on the back of the feeder is provided to select between CV or CC. This switch selects proper control stability for the mode being
used. The switch does not select the mode of
operation. The mode of operation is determined by the type of power source being used.
The main application for this wire feeder is for CC application using tubular self-shielding wires. Most CC types of power sources do not have a remote contactor control available. This means that the electrode is always hot once the power source has been turned on. It also means that the gun switch on the wire feeder does not control the power source, but only controls the starting and stopping of the wire feeder itself. Since the power source remains turned on, when the gun switch is released, care must be taken when terminating the arc. When the gun switch is released, the operator must also pull the gun away from the arc to make sure that the arc is extinguished and does not burn back into the gun tip.
Internal limiting circuitry limits the maximum speed independent of input voltage. In addition, a slow run-in circuit is provided which automatically re­duces the run in wire feed speed when open circuit voltage from a CC power source is present.
NOTE: Wire feeder input is protected by a 7 Amp slo-blow fuse. An 1/8 Amp fuse protects the P.C. Board circuitry should a short develop between the gun switch lead to electrode lead. A 5 Amp slo-blow in-line fuse
inside the case protects the wire feed
motor.
Feedhead Assembly
The feed roll drive motor is solid-state controlled on this unit. One of either of two different motors (see Parts List for numbers of each) are used,
May 22, 1997 Revised 3-1
430429-249 DESCRIPTION OF EQUIPMENT
depending upon whichwire feed rate is desired. See Table 3-1 for correlation of numbers.
Speed Range of Wire
20.4:1 drive gear ratio — 40 to 600 IPM
(inches/minute)
SPEC. MODEL
6877A-1 2460 4 40-600 IPM 6877B-1 2460 4 40-600 IPM 6877A-2 2460 4 20-300 IPM 6877B-2 2460 4 20-300 IPM
The assemblies consist of Feed Rolls (which are made up of a Gear and Feed Roll) for various wire types and/or sizes, Wire Input Guide, Output Guide, Feedhead Mounting Plate, and Pressure Arm as­sembly. The drivemotor is 24 volts DC. See TIP-218 for details on the Feedhead Assembly. See Feed Roll Kit drawing 375980 for selecting part numbers for the Feed Rolls, Wire Guides, Contact Tubes, etc.
FEED
ROLLS
Table 3-1
WIRE FEED
RATE
Tabulated Data
Gearmotor Permanent magnet
24 V DC, 1/8.8 HP
5A ± .5 amps
Speed:
123 RPM ± 12 RPM
57 RPM ± 5.7 RPM
(optional @ no
load)
Voltages
43.9:1 drive gear ratio — 20 to 300 IPM
(inches/minute) (optional)
Wire Data
Spool weight 60 pounds
(27.2 kg) max.
Sizes 1/8 inch (3.17 mm)
and smaller
Control Box Assembly
The Control Box contains control and connection for the operation and component hook-up with the particular welding system it is being used with. See TIP-218 and MPL-224 included in this manual.
Wire Reel Support Assembly
The support bolts in place at the rear of the base­plate. See I-169 included in this manual for details on the installation and operation of the wire support assembly.
Baseplate
See TIP-127 for details on the baseplate used for this wire feeder when assembled to make the sub­ject model configuration.
Motor 24 V DC
Gun Circuit 11 V DC or 24 V AC
(option)
3-2 May 22, 1997 Revised
Options
The options available with this unit are as follows:
430429-249
DESCRIPTION OF EQUIPMENT
ITEM DESCRIPTION
KIT, CONTACTOR WITH GV
1
KIT, CONTACTOR LESS GV
2
KIT, CONTACTOR WITH GV AND MEGA-ARC REMOTE CONTROL
3
KIT, CONTACTOR LESS GV AND MEGA-ARC REMOTE CONTROL
4
KIT, CONTACTOR WITH GV AND MEGA-MIG REMOTE CONTROL
5
KIT, CONTACTOR LESS GV AND MEGA-MIG REMOTE CONTROL
6
KIT, VOLT AND IPM METERS
7
KIT, MEGA-MIG, R.C. 15 FT.
8
KIT, MEGA-MIG, R.C. 25 FT.
9
KIT, MEGA-MIG, R.C. 50 FT.
10
KIT, MEGA-MIG, R.C. 75 FT.
11
KIT, MEGA-MIG, R.C. 100 FT.
12
KIT, MEGA-ARC, R.C. 25 FT.
13
KIT, MEGA-ARC, R.C. 50 FT.
14
KIT, MEGA-ARC, R.C. 75 FT.
15
KIT, MEGA-ARC, R.C. 100 FT.
16
CABLE CONTROL 6 FT.
17
CABLE, “Y” MEGA-ARC 6 FT.
18
CABLE, EXT 6 PIN 50 FT.
19
CABLE, EXT 6 PIN 100 FT.
20
CABLE, EXT 6 PIN 25 FT.
21
CABLE, EXT 6 PIN 75 FT.
22
CABLE, 19 PIN–10 PIN 10 FT.
23
CABLE, 10 PIN–LEAD 10 FT.
24
CABLE, 19 PIN–6 PIN 15 FT.
25
CABLE, 19 PIN–6 PIN 25 FT.
26
CABLE, 19 PIN–6 PIN 50 FT.
27
CABLE, 19 PIN–6 PIN 75 FT.
28
CABLE, 19 PIN–6 PIN 100 FT.
29
FRAME, SKID
30
KIT, HANDLE
31
KIT, CASTOR
32
EYE, LIFTING
33
MOUNTING, SWIVEL
34
KIT, SPOOL
35
ADAPTER, SPOOL 10 LB.
36
ADAPTER, SPOOL 15 LB.
37
ADAPTER, COIL 14 LB.
38
COVER, SPOOL 30 LB.
39
ADAPTER, COIL 60 LB.
40
KIT, REEL, WIRE
41
COVER, COIL 60 LB./SUPPORT/LIFTING EYE
42
6877A-1 6877A-2
376809-1 376809-2 376809-3
376809-4 376809-5 376809-6
376847 376810-1 376810-2
376810-3 376810-4 376810-5
376810-6 376810-7 376810-8
376810-9 373059A 376510
376511-1 376511-2 376511-3
376511-4 376512-1 376513-1
376514-1 376514-2 376514-3
376514-4 376514-5 493263
375994 375605-2 375104
375606-2 374831A 375585
375584 375942 375582-2
407142 374819A 375733-1
6877B-1 6877B-2
376809A-1 376809A-2 376809A-3
376809A-4 376809A-5 376809A-6
376847 376810-1 376810-2
376810-3 376810-4 376810-5
376810-6 376810-7 376810-8
376810-9 373059A 376510
376511-1 376511-2 376511-3
376511-4 376512-1 376513-1
376514-1 376514-2 376514-3
376514-4 376514-5 493263-1
375994A 375605A-2 375104A
375606A-2 374831A 375585-1
375584-1 375942A 375582A-2
407142A 374819A 375733A-1
NOTE:Forinstallationand operation instructions for the above options, see thedrawingsand instructions furnished with each kit. The Welding Gun and Cable Assembly used with the Feedhead in the manual is covered by an Owner’s Manual. (See TIP publication included in this manual for particular Feedhead used.)
May 22, 1997 Revised 3-3
430429-249 DESCRIPTION OF EQUIPMENT
This page intentionally left blank.
3-4 May 22, 1997 Revised
OPERATION
430429-249
OPERATION
Prewelding Checks
Before attempting to operate the Model 2460 Heavy Duty CC/CV Wire Feeder, make certain that all installation instructions, including those for the welding machine (power source), and the welding gun and cable, have been carried out.
1. With the feeder properly connected to the power source and the work cables properly connected from power source to work and from feeder to work, turn on the power source.
WARNING: When the power source is turned on, the elec­trode (welding wire) is electri­cally hot. Do not permit it to touch any metal or a welding arc may be established which may be injurious to someoneseyes (flash) or skin (burn).
2. Select CC/CV characteristic on motor control circuit and set switch accordingly.
3. Determine desired operating voltage in case of a CV power source or desired operating current in case of a CC power source and set power source accordingly.
4. Set control on feeder to an approximate 3
position on the dial.
NOTE: When using a CV power source, increasing dial position will increase wire feed speed and as a result increase weld­ing current.
Whenusinga CC power source, increasing dial position will increase wire feed speed and as a result will decrease arc voltage.
Welding
1. Position the gun above the workpiece but do not touch the electrode to the work as this will cause arc flash. With the gun in the proper position and eyes fully protected, pull the gun switch which will cause an arc to be initiated.
2. Releasing the gun switch trigger will cause the wire to stop feeding. At this time the gun must be pulled away from the work in order to extinguish the arc.
3. When the welding has been completed, or at the end of the work day, it is recommended that the power source and feeder be turned off.
May 22, 1997 Revised 4-1
430429-249 OPERATION
This page intentionally left blank.
4-2 May 22, 1997 Revised
Loading...
+ 40 hidden pages