Miller SWINGARC SINGLE 12, SWINGARC SINGLE 16 Owners manual

Page 1

Sept. 1987 FORM: OM-1517D

IMPORTANT: Read and understand the entire contents of both this manual and the power source manual used with this unit, with special emphasis on the safety material throughout both manuals, before installing, operating, or maintaining this equipment. This unit and these instructions are for use only by persons trained and experienced in the safe operation of welding equipment. Do not allow untrained persons to install, operate, or maintain this unit. Contact your distributor if you do not fully understand these instructions.

Effective With Serial No. JG071242

MODEL SWINGARC^® DUAL 12 SWINGARC^® DUAL 16

MILLER ELECTRIC MFG. CO.

718 S. BOUNDS ST, P.O. Box 1079 APPLETON, WI 54912 USA

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LIMITED WARRANTY

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EFFECTIVE: OCTOBER 1, 1986

This warranty supersedes all previous MILLER warranties and is exclusive with no other guarantees or warranties expressed or implied

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LIMITED WARRANTY - Subject to the terms and conditions hereof, Miller Electric Mfg. Co., Appleton, Wisconsin warrants to its Distributor/Dealer that all new and unused Equipment furnished by Miller is free from defect in workmanship and material as of the time and place of delivery by Miller. No warranty is made by Miller with respect to engines, trade accessories or other items manufactured by others. Such engines, trade accessories and other items are sold subject to the warranties of their respective manufacturers, if any . All engines are warranted by their manufacture for one year from date of original purchase, except Tecumseh engines which have a two year warranty.

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Except as specified below, Miller's warranty does not apply to components having normal useful life of less than one (1) year, such as spot welder tips, relay and contactor points, MILLERMATIC parts that come in contact with the welding wire including nozzles and nozzle insulators where failure does not result from defect in workmanship or material.

Miller shall be required to honor warranty claims on warranted Equipment in the event of failure resulting from a defect within the following periods from the date of delivery of Equipment to the original user:

1. Arc welders, power sources, robots, and components . 1 year
2. Load banks ....................................
4. All welding guns, feeder/guns and plasma torches .... 90 days
5. All other Millermatic Feeders ..... 1 year
6. Replacement or repair parts, exclusive of labor ... 60 days
7. Batteries ..... 6 months

provided that Miller is notified in writing within thirty (30) days of the date of such failure.

As a matter of general policy only, Miller may honor claims submitted by the original user within the foregoing periods.

In the case of Miller's breach of warranty or any other duty with respect to the quality of any goods, the exclusive remedies therefore shall be, at Miller's option (1) repair or (2) replacement or, where authorized in writing by Miller in appropriate cases, (3) the reasonable cost of repair or replacement at an authorized Miller service station or (4) payment of or credit for the purchase price (less reasonable depreciation based upon actual use) upon return of the goods at Customer's risk and expense. MILLER's option of repair or replacement will be F.O.B., Factory, at Appleton, Wisconsin, or F.O.B., at a MILLER authorized service facility, therefore, no compensation for transportation costs of any kind will be allowed. Upon receipt of notice of apparent defect or failure, Miller shall instruct the claimant on the warranty claim procedures to be followed.

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ANY EXPRESS WARRANTY NOT PROVIDED HEREIN AND ANY IMPLIED WARRANTY, GUARANTY OR REPRESENTA-TION AS TO PERFORMANCE, AND ANY REMEDY FOR BREACH OF CONTRACT WHICH, BUT FOR THIS PROVISION, MIGHT ARISE BY IMPLICATION, OPERATION OF LAW, CUSTOM OF TRADE OR COURSE OF DEALING, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY OR OF FITNESS FOR PARTICULAR PURPOSE, WITH RESPECT TO ANY AND ALL EQUIPMENT FURNISHED BY MILLER IS EX-CLUDED AND DISCLAIMED BY MILLER.

EXCEPT AS EXPRESSLY PROVIDED BY MILLER IN WRITING, MILLER PRODUCTS ARE INTENDED FOR ULTIMATE PURCHASE BY COMMERCIAL/INDUSTRIAL USERS AND FOR OPERATION BY PERSONS TRAINED AND EXPERIENCED IN THE USE AND MAINTENANCE OF WELDING EQUIPMENT AND NOT FOR CONSUMERS OR CONSUMER USE. MILLER'S WARRANTIES DO NOT EXTEND TO, AND NO RESELLER IS AUTHORIZED TO EXTEND MILLER'S WARRANTIES TO, ANY CONSUMER.

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After this manual was printed, refinements in equipment design occurred. This sheet lists exceptions to data appearing later in this manual.

AMENDMENT TO SECTION 3 - INSTALLATION

Amend Section 3-15C. SUPPLY CONNECTIONS TO CONTROL BOX AND BOOM: 115 Volts AC/Contactor Control

WARNING: ELECTRIC SHOCK can kill; MOVING PARTS can cause injury.

Do not touch live electrical parts.
Keep away from moving parts.

The control will be electrically hot internally and ready to operate as soon as the 115 volts ac/contactor control plug is connected to the REMOTE 14 receptacle and the welding power source is energized.

CAUTION: IMPROPER VOLTAGE APPLIED TO WELDING POWER SOURCE CONTACTOR can damage wire feeder and welding power source.

Be sure welding power source contactor control circuitry requires external supply of 115 vac for contactor control.

This wire feeder supplies 115 volts ac to the welding power source for contactor control.

1. Using One Welding Power Source

WARNING: ELECTRIC SHOCK can kill; MOVING PARTS can cause injury.

Do not touch live electrical parts.
Do not touch either electrode wire when either gun switch is closed.
Isolate unused gun from workpiece.

Both electrode wires are electrically energized when either gun trigger is pressed when using one welding power source.

Both welding wires and all metal parts in contact with them carry weld output when the welding power source contactor is energized.

The contactor control circuitry in this wire feeder is connected to operate both guns from one welding power source.

A 10 ft. (3 m) 4-conductor cord is provided for 115 volts ac power and contactor control connections between control box and welding power source. To make connections, proceed as follows:

a. Connect 115 volts ac/left contactor control plug to the 115 Volts AC/Left Contactor Control receptacle on rear of control box as follows: align keyways, insert plug, and rotate threaded collar fully clockwise.
b. Route remaining end of cord to suitable REMOTE 14 receptacle on welding power source. Connect plug to receptacle as follows: align keyway, insert plug, and rotate threaded collar fully clockwise.

IMPORTANT: If the supplied control cord does not match the welding power source remote control receptacle, obtain the necessary adapter cord from your welding equipment distributor.

2. Using Two Welding Power Sources

WARNING: ELECTRIC SHOCK can kill.

• Do not touch live electrical parts.

• Shut down wire feeder and welding power source, and disconnect input power employing lockout/tagging procedures before inspecting or installing.

Lockout/tagging procedures consist of padlocking line disconnect switch in open position, removing fuses from fuse box, or shutting off and red-tagging circuit breaker or other disconnecting device.

Work on internal parts to be performed by qualified persons.

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Through minor modification, the contactor control circuitry of the wire feeder can be adapted to operate two welding power sources, that is, the left gun trigger governing contactor control to one welding power source and right gun trigger governing contactor control to the other. Obtain a proper interconnecting cord for right side contactor control, and proceed as follows:

a. Remove wrapper from control box.
b. Locate terminal strip 1T on panel inside control box.
c. Disconnect lead 39 from terminal K on terminal strip 1T, and reconnect it to terminal E.
d. Reinstall wrapper.
e. Connect left contactor control plug to the 115 Volts AC/Left Contactor Control receptacle on rear of control box as follows: align keyways, insert plug, and rotate threaded collar fully clockwise.
f. Route remaining end of cord to suitable REMOTE 14 receptacle on left welding power source. Connect plug to receptacle as follows: align keyway, insert plug, and rotate threaded collar fully clockwise.

IMPORTANT: If the supplied control cord does not match the welding power source remote control receptacle, obtain the necessary adapter cord from your welding equipment distributor.

g. Connect right contactor control plug to the Right Contactor Control receptacle on rear of control box as follows: align keyways, insert plug, and rotate threaded collar fully clockwise.
h. If right welding power source has a 14-pin remote receptacle, route remaining end of cord from Step g to interface box supplied with optional right contactor control cord. Insert contactor control plug into receptacle on interface box, and rotate plug fully clockwise. Connect 14-pin plug extending from interface box to 14-socket receptacle on right welding power source as follows: align keyway, insert plug, and rotate threaded collar fully clockwise.
i. If right welding power source has a two-pole twistlock receptacle for the contactor control plug, route remaining end of cord from Step g to contactor control receptacle on right welding power source, insert plug, and rotate fully clockwise.

AMENDMENT TO SECTION 6 - MAINTENANCE & TROUBLESHOOTING

Amend Figure 6-4. Circuit Diagram (see Pages 3 and 4 on this Errata Sheet)

Add Figure 6-4A. Circuit Diagram For Motor Control Board PC1 (see Page 5 on this Errata Sheet)

Add Figure 6-6. Wiring Diagram (see Pages 6 and 7 on this Errata Sheet)

Page 5

Page 6

Page 7

Circuit Diagram No. A-083 267-A

Figure 6-4A. Circuit Diagram For Motor Control Board PC1 Effective With Serial No. JH306014 Thru JJ321896

Circuit Diagram No. A-120 065-A

Figure 6-4A. Circuit Diagram For Motor Control Board PC1 Effective With Serial No. JJ321897

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AMENDMENT TO PARTS LIST

Amend Parts List as follows:

					Quar	ntity
	Dia.	Part	Replaced		Мо	del
**	Mkgs	No.	With	Description	12	16
2-1		099 522	126 304	CABLE, control interconnecting 12ft 6 in (Eff w/JK674436)
				(consisting of)	1	1
	PLG8		111 122	HOUSING PLUG & PINS, (consisting of)	1	1
			109 770	•• TERMINAL, male	14	14
			116 964	· CLAMP, cable 97-3057-1012	1	1
			604 571	· CABLE, port No. 18 4/c (order by ft)	13ft	13ft
			079 531	· CLAMP, cable strain relief sz 11	1	1
	PLG7		048 284	HOUSING PLUG & SOCKETS, (consisting of)	1	1
•			079 534	TERMINAL, female	14	14
6-	004	070 634	123 154	LABEL, warning general precautionary	1	1
6-24	CR4	034 841	109 006	RELAY, encl 24VAC DPDT (Eff w/JJ494608)	1	1
6-29		038 784	Deleted
6-30	RU5	039 756	111 029	HOUSING, terminal header 10skt (Eff w/JJ494608)	1	1
/-	Q2	037 289	037813	TRANSISTOR, UJT 50MA 35V	1	1
	05		031 670	CAPACITOR, cer .05ut 500VDC (Eff w/JJ332372)	1	1
11 10	R2	050 440	035 825	RESISTOR, CF 0.25W 1K ohm (Eff w/JJ332372)	1	1
11-10		056 416	108 008	REEL, wire (consisting of)	1	1
			108 861	NUT, spanner spool support (w/o rim)	1	1
			124 904	NUT, spanner spool support (w/rim)	1	1
			108 857		1	1
			124 900	SUPPORT, reel spool (w/rim)	1	1
			108 858		1	1
			123 185		1	1
11_11			124 905		1	1
thru
11-16			Dolotod
12.		112 020	110 170
- م ا	CB1	000 975	117 525		1	l
		030 070	117 000	TELAT, CHUI 12VDU 3731 (EII W/JJ328455)	٦	٦

**First digit represents page no - digits following dash represent item no. BE SURE TO PROVIDE MODEL AND SERIAL NUMBER WHEN ORDERING REPLACEMENT PARTS.

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Se	ction	No.

Page No.

SECTION 1 - SAFETY RULES FOR OPERATION OF ARC WELDING POWER SOURCE

1 - 1. 1 - 2.	Introduction	1 1
1 - 3. 1 - 4.	Arc WeldingStandards Booklet Index	7 11

SECTION 2 - INTRODUCTION

2 - 1.	General Information And Safety	13
2 - 2.	Receiving-Handling	13
2 - 3.	Description	13

SECTION 3 - INSTALLATION

3 - 1.	Location And Assembly	14 15
3 - 3.	Reinstallation Of Hub Assembly	15
3 - 4.	Installation Of Wire Guide Extensions	16
3 - 5.	Installation Of Spool-Type Wire	16
3 - 6.	Installation Of Optional Wire Reel And Reel-Type Wire	16
3 - 7.	Drive Motor Vent Screw	16
3 - 8.	Drive Roll And Wire Guide Installation	16
3 - 9.	Water Connections (Optional)	18
3-10.	Welding Gun Connections To Drive Assembly	19
3-11.	Connections From Boom To Control Box	19
3 -12.	Pulley Adjustment	19
3-13.	Safety Collar Removal	19
3-14.	Boom Adjustments	20
3-15.	Supply Connections To Control Box And Boom	20
3-16.	Adjustment Of Hub Tension	23
3-17.	Welding Wire Threading	23

SECTION 4 - OPERATOR CONTROLS

4 - 1.	Power Switch	ŧ.
4 - 2.	Wire Speed Controls	ł
4 - 3.	Jog Switches	ŧ.
4 - 4.	Purge Push Buttons 24	ŧ
4 - 5.	Reset Circuit Breaker 24	ŧ.
4 - 6.	Fuse	ŧ
4 - 7.	Remote Control Receptacles And Switches	ŧ
4 - 8.	Burnback Controls (Optional) 25	5

SECTION 5 - SEQUENCE OF OPERATION

5 - 1.	Gas Metal Arc Welding (GMAW)	25
5 - 2.	Shutting Down	25

SECTION 6 - MAINTENANCE & TROUBLESHOOTING

6 - 1.	Inspection And Upkeep	26
6 - 2.	Cleaning Of Drive Rolls	26
6 - 3.	Motor Overload Breaker	26
6 - 4.	Overload Protection	27
6 - 5.	Brush Inspection And Replacement	27
6 - 6.	Drive Shaft Inspection And Maintenance	28
6 - 7.	Circuit Board Replacement Procedure	29
6 - 8.	Troubleshooting Chart	29

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SECTION 1 - SAFETY RULES FOR OPERATION OF ARC WELDING POWER SOURCE SECTION 1 - RÈGLES DE SÉCURITÉ POUR LE FONCTIONNEMENT DU POSTE DE SOUDAGE À L'ARC

1-1. INTRODUCTION – We learn by experience. Learning safety through personal experience, like a child touching a hot stove is harmful, wasteful, and unwise. Let the experience of others teach you.

Safe practices developed from experience in the use of welding and cutting are described in this manual. Research, development, and field experience have evolved reliable equipment and safe installation, operation, and servicing practices. Accidents occur when equipment is improperly used or maintained. The reason for the safe practices may not always be given. Some are based on common sense, others may require technical volumes to explain. It is wiser to follow the rules.

Read and understand these safe practices before attempting to install, operate, or service the equipment. Comply with these procedures as applicable to the particular equipment used and their instruction manuals, for personal safety and for the safety of others.

Failure to observe these safe practices may cause serious injury or death. When safety becomes a habit, the equipment can be used with confidence.

These safe practices are divided into two Sections: 1 - General Precautions, common to arc welding and cutting; and 2 - Arc Welding (and Cutting) (only).

Reference standards: Published Standards on safety are also available for additional and more complete procedures than those given in this manual. They are listed in the Standards Index in this manual. ANSI Z49.1 is the most complete.

The National Electrical Code, Occupational Safety and Health Administration, local industrial codes, and local inspection requirements also provide a basis for equipment installation, use, and service.

1-2. GENERAL PRECAUTIONS

Different arc welding processes, electrode alloys, and fluxes can produce different fumes, gases, and radiation levels. In addition to the information in this manual, be sure to consult flux and electrode manufacturers for specific technical data and precautionary measures concerning their material.

A. Burn Prevention

Wear protective clothing – gauntlet gloves designed for use in welding, hat, and high safety-toe shoes. Button shirt collar and pocket flaps, and wear cuffless trousers to avoid entry of sparks and slag.

Wear helmet with safety goggles or glasses with side shields underneath, appropriate filter lenses or plates (protected by clear cover glass). This is a MUST for welding or cutting, (and chipping) to protect the eyes

1-1. INTRODUCTION - Contrairement à l'apprentissage de la vie, l'apprentissage de la sécurité par expérience personnelle, comme l'enfant qui touche un poêle chaud, est dangereux, imprudent et inutile. Instruisez-vous donc de l'expérience d'autrui.

Des méthodes de sécurité issues de l'expérience du soudage et du coupage sont décrites dans le manuel. La recherche, le progrès et l'expérience dans ce domaine ont développé un matériel fiable et des méthodes de sécurité pour l'installation, le fonctionnement et l'entretien. Des accidents se produisent lorsque le matériel est inadéquatement utilisé ou entretenu. La raison de ces méthodes de sécurité peut ne pas être toujours donnée. Certaines sont fondées sur le sens commun, d'autres demanderont à être expliquées par des livres techniques. Il est plus sage de suivre les règles.

Lisez et comprenez ces méthodes de sécurité avant d'essayer d'installer, de faire fonctionner ou de réparer l'appareil. Pour votre sécurité personnelle et celle. d'autrui, conformez-vous à ces règles et aux manuels d'instructions.

Manquer d'observer ces méthodes de sécurité pourrait entrainer des blessures graves ou mème la mort. Quand la sécurité devient une habitude, le matériel peut alors être utilisé en toute confiance.

Ces méthodes de sécurité sont divisées en deux sections: 1 - Précautions générales, communes au soudage et au coupage à l'arc, et 2 - Soudage à l'arc (et coupage) (uniquement).

Normes de référence: Des publications des normes américaines de sécurité sont aussi à votre disposition pour d'autres modes opératoires plus complets que ceux du présent manuel. Elles sont données dans l'Index des Normes de ces règles de sécurité. ANSI Z49-1 est la plus complète.

Les codes de l'ACNOR, les codes provinciaux et municipaux donnent aussi les exigences pour une installation, une utilisation et un entretien sûrs.

1-2. PRÉCAUTIONS GÉNÉRALES

Plusieurs procédés du soudage à l'arc, des électrodes alliés, et les flux peuvent produire des vapeurs, gaz, et niveaux de rayonnement différents. Pour tout renseignement supplémentaire à ce manuel, consultez aussi les fabricants des électrodes et des flux afin d'obtenir les renseignements techniques spécifiques et les mesures de précaution concernant leurs matériaux.

A. Prévention des brûlures

Portez des vêtements de protection - des gants à crispin spécialement désignés pour le soudage, un casque et des chaussures de sécurité. Boutonnez le col de votre chemise et les pattes de vos poches, et portez des pantalons sans revers pour éviter que des étincelles et du laitier ne s'y introduisent.

Portez un masque avec lunettes de sécurité ou avec écrans laté-raux de protection, des lunettes filtrantes ou des couvre-lentilles (protégés par un verre clair). Pour le soudage ou le coupage (et le burinage), il est

Page 14

from radiant energy and flying metal. Replace cover glass when broken, pitted, or spattered. See 1-3A.2.

Avoid oily or greasy clothing. A spark may ignite them.

Hot metal such as electrode stubs and workpieces should never be handled without gloves.

Medical first aid and eye treatment. First aid facilities and a qualified first aid person should be available for each shift unless medical facilities are close by for immediate treatment of flash burns of the eyes and skin burns.

Ear plugs should be worn when working on overhead or in a confined space. A hard hat should be worn when others work overhead.

Flammable hair preparations should not be used by persons intending to weld or cut.

B. Toxic Fume Prevention

Severe discomfort, illness or death can result from fumes, vapors, heat, or oxygen enrichment or depletion that welding (or cutting) may produce. Prevent them with adequate ventilation as described in ANSI Standard Z49.1 listed 1 in Standards index. NEVER ventilate with oxygen.

Lead -, cadmium -, zinc -, mercury -, and beryllium bearing and similar materials, when welded (or cut) may produce harmful concentrations of toxic fumes. Adequate local exhaust ventilation must be used, or each person in the area as well as the operator must wear an air-supplied respirator. For beryllium, both must be used.

Metals coated with or containing materials that emit toxic fumes should not be heated unless coating is removed from the work surface, the area is well ventilated, or the operator wears an air-supplied respirator.

Work in a confined space only while it is being ventilated and, if necessary, while wearing an air-supplied respirator.

Gas leaks in a confined space should be avoided. Leaked gas in large quantities can change oxygen concentration dangerously. Do not bring gas cylinders into a confined space.

Leaving confined space, shut OFF gas supply at source to prevent possible accumulation of gases in the space if downstream valves have been accidently opened or left open. Check to be sure that the space is safe before re-entering it.

Vapors from chlorinated solvents can be decomposed by the heat of the arc (or flame) to form PHOSGENE, a highly toxic gas, and other lung and eye irritating products. The ultraviolet (radiant) energy of the arc can also decompose trichloroethylene and perchloroethylene vapors to form phosgene. DO NOT WELD or cut where solvent vapors can be drawn into the welding or cutting atmosphere or where the radiant

OBLIGATOIRE de protéger ses yeux contre l'énergie de rayonnement et les éclats de métal. Remplacez le verre protecteur lorsqu'il est brisé, piqué ou qu'il a reçu des projections. Voir 1.3A.2.

Évitez de porter des habits imprégnés d'huile ou de graisse. Une étincelle pourrait les enflammer.

Ne manipulez jamais sans gants un métal chaud tel que des chutes d'électrode et des pièces à souder.

Premiers soins et traitement des yeux: Tout atelier devrait avoir à sa disposition un poste de premiers soins ainsi qu'une personne compétente, à moins qu'ur, service médical ne soit à proximité pour soigner immédiatement les brûlures des yeux et de la peau.

Portez des bouche-oreilles lorsque vous travaillez au plafond ou dans un espace restreint. Portez un casque lorsque d'autres personnes travaillent au plafond.

Les personnes devant souder ou couper ne doivent pas employer des préparations inflammables pour leurs cheveux.

B. Prévention des gax toxiques

Les gaz, les vapeurs, la chaleur, un enrichissement ou un manque d'oxygène peuvent entraîner un malaise, une maladie ou même la mort. Remédiez-y par la ventilation décrite dans la Norme ANSI Z49.1 paragraphe 1 de l'Index des Normes. NE ventilez JAMAIS à l'oxygène.

En soudant ou en coupant, les plomb, cadmium, zinc, mercure et béryllium ou autres matériaux semblables peuvent créer des concentrations nocives de gaz toxiques. On doit avoir recours à une ventilation aspirante adéquate du local, ou alors toute personne sur les lieux, de même que le soudeur, doit porter un masque à adduction d'air. On doit employer les deux pour le béryllium.

Les métaux enrobés ou composés de matériaux émettant des gaz toxiques ne doivent pas être chauffés à moins que l'enrobage ne soit ôté de la surface à travailler, que le local ne soit bien ventilé, ou que le soudeur ne porte un masque à adduction d'air.

Ne travaillez dans un espace restreint que s'il est bien ventilé et, si nécessaire, portez un masque à adduction d'air.

On doit éviter les fuites de gaz dans un espace restreint. Les fuites de gaz en grande quantité peuvent transformer dangereusement la concentration d'oxygène. N'amenez pas de bouteilles de gaz dans un espace restreint.

En quittant un espace restreint, FERMEZ le robinet d'alimentation de gaz de la bouteille. Ainsi on pourra rentrer en toute sécurité dans la pièce, même si les robinets "aval" ont été ouverts par accident, ou si on les a laissés ouverts.

Les vapeurs de dissolvants chlorés peuvent être décomposées par la chaleur de l'arc (ou de la flamme) et former du PHOSGÈNE, gaz très toxique, et d'autres produits irritant les poumons et les yeux. L'énergie ultra-violette de l'arc peut aussi décomposer les vapeurs de trichloroéthylène et de perchloroéthylène pour former du phosgène. NE SOUDEZ PAS ou ne coupez pas dans des endroits où les vapeurs de dissolvants peuvent être attirées dans l'atmosphère de soudage ou de

Page 15

energy can penetrate to atmospheres containing even minute amounts of trichloroethylene or perchloroethylene.

C. Fire and Explosion Prevention

Causes of fire and explosion are: combustibles reached by the arc, flame, flying sparks, hot slag or heated material; misuse of compressed gases and cylinders; and short circuits.

BE AWARE THAT flying sparks or falling slag can pass through cracks, along pipes, through windows or doors, and through wall or floor openings, out of sight of the goggled operator. Sparks and slag can fly 35 feet.

To prevent fires and explosion:

Keep equipment clean and operable, free of oil, grease, and (in electrical parts) of metallic particles that can cause short circuits.

If combustibles are in area, do NOT weld or cut. Move the work if practicable, to an area free of combustibles. Avoid paint spray rooms, dip tanks, storage areas, ventilators. If the work cannot be moved, move combustibles at least 35 feet away out of reach of sparks and heat; or protect against ignition with suitable and snug-fitting, fire-resistant covers or shields.

Walls touching combustibles on opposite sides should not be welded on (or cut). Walls, ceilings, and floor near work should be protected by heat-resistant covers or shields.

Fire watcher must be standing by with suitable fire extinguishing equipment during and for some time after welding or cutting if:

a. appreciable combustibles (including building construction) are within 35 feet
b. appreciable combustibles are further than 35 feet but can be ignited by sparks
c. openings (concealed or visible) in floors or walls within 35 feet may expose combustibles to sparks
- d. combustibles adjacent to walls, ceilings, roofs, or metal partitions can be ignited by radiant or conducted heat.

Hot work permit should be obtained before operation to ensure supervisor's approval that adequate precautions have been taken.

After work is done, check that area is free of sparks, glowing embers, and flames.

An empty container that held combustibles, or that can produce flammable or toxic vapors when heated, must never be welded on or cut, unless container has first been cleaned as described in AWS Standard A6.0, listed 7 in Standards index.

This includes: a thorough steam or caustic cleaning (or a solvent or water washing, depending on the com-

coupage et où l'énergie de rayonnement peut pénétrer dans des atmosphères contenant des quantités même minuscules de trichloroéthylène ou de perchloroéthylène.

C. Prévention des incendies et des explosions

Les causes d'incendie et d'explosion sont les combustibles atteints par l'arc, la flamme, les étincelles, le laitier chaud ou les matériaux chauffés, le mauvais emploi des gaz comprimés et des bouteilles ainsi que les courts-circuits.

Sachez que les éclats d'étincelles ou la chute du laitier peuvent s'infiltrer dans les fissures, le long des tuyauteries, par les fenêtres et les portes et par les couvertures des murs ou du sol, sans que le soudeur portant des lunettes ne les voie. Les étincelles et les scories peuvent voler jusqu'à 35 pieds.

Pour prévenir les incendies et les explosions: Veillez à ce que votre appareil soit propre et en état de marche, dénué d'huile et de graisse, et de particules de métal sur les pièces électriques qui pourraient entraîner des courts-circuits.

Si des combustibles se trouvent à proximité, ne soudez pas, ne coupez pas. Si possible, déplacez votre travail loin des combustibles. Évitez les ateliers de peinture au pistolet, les cuves d'immersion, les entrepôts, les ventilateurs. Si cela n'est pas possible, placez les combustibles à au moins 35 pieds des étincelles et de la chaleur et protégez-les des étincelles avec des couvertures ou des écrans protecteurs adéquats, bien ajustés et ignifugés.

On ne doit pas souder (ou couper) le côté opposé des murs touchant les combustibles. Les murs, plafonds et planchers proches du travail doivent être protégés par des couvertures ou écrans protecteurs ignifugés.

Un surveillant doit se tenir à proximité avec un matériel de lutte contre l'incendie adéquat, pendant et quelque temps après le soudage ou le coupage si:

Des quantités appréciables de combustibles (y compris une construction en chantier) se trouvent à moins de 35 pieds.
b. Des quantités appréciables de combustibles sont à plus de 35 pieds mais peuvent être enflammées par des étincelles.
c. Des ouvertures (cachées ou visibles) sur les planchers ou les murs à moins de 35 pieds peuvent exposer des combustibles aux étincelles.
Les combustibles adjacents aux murs, plafonds, toits ou cloisons métalliques peuvent être enflammés par une chaleur rayonnante ou transmise.

Avant de commencer, avisez le contremaître pour qu'il s'assure que les précautions adéquates soient prises.

Une fois le travail terminé, vérifiez qu'il n'y ait pas d'étincelles, de cendres ardentes ou de flammes dans le local.

On ne doit jamais souder ni couper sur un récipient ayant contenu des combustibles, ou pouvant produire des vapeurs inflammables ou toxiques à la chauffe, à moins que le récipient n'ait été lavé au préalable, comme décrit dans la Norme AWS A6.0, figurant au paragraphe 7 de l'Index des Normes.

Cela comprend: un nettoyage à fond à la vapeur ou au caustique (ou un lavage avec dissolvant ou eau selon la solubilité du combustible) suivi d'une purge et d'une in-

Page 16

bustible's solubility) followed by purging and inerting with nitrogen or carbon dioxide, and using protective equipment as recommended in A6.0. Waterfilling just below working level may substitute for inerting.

A container with unknown contents should be cleaned (see paragraph above). Do NOT depend on sense of smell or sight to determine if it is safe to weld or cut.

Hollow castings or containers must be vented before welding or cutting. They can explode.

Explosive atmospheres. Never weld or cut where the air may contain flammable dust, gas, or liquid vapors (such as gasoline).

D. Compressed Gas Equipment

Standard precautions. Comply with precautions in this manual, and those detailed in CGA Standard P-1, SAFE HANDLING OF COMPRESSED GASES IN CYLINDERS, listed 11 in Standards index.

1. Pressure Regulators

Regulator relief valve is designed to protect only the regulator from overpressure; it is not intended to protect any downstream equipment. Provide such protection with one or more relief devices.

Never connect a regulator to a cylinder containing gas other than that for which the regulator was designed.

Remove faulty regulator from service immediately for repair (first close cylinder valve). The following symptoms indicate a faulty regulator:

Leaks - if gas leaks externally.

Excessive Creep - if delivery pressure continues to rise with downstream valve closed.

Faulty Gauge - if gauge pointer does not move off stop pin when pressurized, nor returns to stop pin after pressure release.

Repair. Do NOT attempt repair. Send faulty regulators for repair to manufacturer's designated repair center, where special techniques and tools are used by trained personnel.

2. Cylinders

Cylinders must be handled carefully to prevent leaks and damage to their walls, valves, or safety devices:

Avoid electrical circuit contact with cylinders including third rails, electrical wires, or welding circuits. They can produce short circuit arcs that may lead to a serious accident. (See 1-3C.)

ICC or DOT marking must be on each cylinder. It is an assurance of safety when the cylinder is properly handled.

jection d'azote ou de gaz carbonique, en utilisant un équipement de protection comme recommandé dans l'A6-0. L'atmosphère inerte peut être remplacée par un niveau d'eau arrivant au-dessous du travail à effectuer.

Vous devez laver un récipient dont la nature de contenu est inconnue (voir paragraphe ci-dessus). NE vous fiez PAS à l'odorat ou à la vue pour dire si l'on peut le souder ou le couper en toute sécurité.

Vous devez pratiquer un évent sur les pièces ou récipients creux avant de les souder ou couper: ils peuvent exploser.

Atmosphères explosives: Ne soudez ni ne coupez jamais dans des lieux où l'air peut contenir des poussières, gaz ou vapeurs liquides inflammables (tels que l'essence).

D. Gaz comprimé

Précautions générales: Suivez les précautions de ce manuel, et celles décrites à la Norme CGA P-1 (Précautions de sécurité pour la manipulation de gaz comprimés en bouteilles), paragraphe 11 de l'Index des Normes.

1. Détendeurs de pression

La soupape de sûreté d'un détendeur est destinée à protéger seulement le détendeur de la surpression. Elle n'a pas pour but de protéger les boyaux et le chalumeau: on protège ceux-ci par des soupapes de retenue conçues spécialement pour cette fonction.

Ne montez jamais un détendeur sur une bouteille contenant un gaz différent de celui pour lequel le détendeur a été conçu.

Enlevez immédiatement un détendeur défectueux pour le faire réparer (d'abord, fermez le robinet de la bouteille). Les symptômes suivants dénotent la défectuosité du détendeur:

Fuites - si le gaz fuit extérieurement.

Ascension excessive - si la pression de débit continue à monter, le robinet du chalumeau étant fermé.

Manomètre défectueux - si l'aiguille du manomètre ne s'écarte pas de la goupille de butée lors de la mise en pression, ou ne revient pas sur la goupille après l'échappement de la pression.

Réparation. N'ESSAYEZ PAS de réparer vous-mêmes. Envoyez les détendeurs défectueux à réparer aux ateliers de réparation agréés du fabricant, où des techniques et des outils spéciaux sont utilisés par un personnel formé.

2. Bouteilles

Les bouteilles doivent être manipulées avec soin pour prévenir les fuites ou dégâts à leurs parois, robinets ou systèmes de sûreté. Évitez qu'un circuit électrique soit en contact avec les bouteilles, y compris les rails de contact, les fils électriques ou les circuits de soudage. Cela pourrait créer des arcs courts-circuits pouvant entraîner des accidents graves (Voir 1.3C.).

Chaque bouteille doit porter les inscriptions ICC ou DOT. C'est un gage de sécurité pourvu que la bouteille soit bien manipulée.

Page 17

Identifying gas content. Use only cylinders with name of gas marked on them; do not rely on color to identify gas content. Notify supplier if unmarked. NEVER DEFACE or alter name, number, or other markings on a cylinder. It is illegal and hazardous.

Empties: Keep valves closed, replace caps securely; mark MT; keep them separate from FULLS and return promptly.

Prohibited use. Never use a cylinder or its contents for other than its intended use, NEVER as a support or roller.

Locate or secure cylinders so they cannot be knocked over.

Passageways and work areas. Keep cylinders clear of areas where they may be struck.

Transporting cylinders. With a crane, use a secure support such as a platform or cradle. Do NOT lift cylinders off the ground by their valves or caps, or by chains, slings, or magnets.

Do NOT expose cylinders to excessive heat, sparks, slag, and flame, etc. that may cause rupture. Do not allow contents to exceed 130°F. Cool with water spray where such exposure exists.

Protect cylinders particularly valves from bumps, falls, falling objects, and weather. Replace caps securely when moving cylinders.

Stuck valve. Do NOT use a hammer or wrench to open a cylinder valve that can not be opened by hand. Notify your supplier.

Mixing gases. Never try to mix any gases in a cylinder.

Never refill any cylinder.

Cylinder fittings should never be modified or exchanged.

3. Hose

Prohibited use. Never use hose other than that designed for the specified gas. A general hose identification rule is: red for fuel gas, green for oxygen, and black for inert gases.

Use ferrules or clamps designed for the hose (not ordinary wire or other substitute) as a binding to connect hoses to fittings.

No copper tubing splices. Use only standard brass fittings to splice hose.

Avoid long runs to prevent kinks and abuse. Suspend hose off ground to keep it from being run over, stepped on, or otherwise damaged.

Coil excess hose to prevent kinks and tangles.

Protect hose from damage by sharp edges, and by sparks, slag, and open flame.

Examine hose regularly for leaks, wear, and loose connections. Immerse pressured hose in water; bubbles indicate leaks.

Identification du gaz: N'utilisez que les bouteilles indiquant la nature du gaz; ne vous fiez pas à la couleur pour reconnaître la nature du gaz. Adressez-vous à votre fournisseur si cela n'est pas indiqué.

N'EFFACEZ ou ne modifiez JAMAIS les noms, numéros ou autres indications sur une bouteille. Cela est illégal et dangereux.

Vides: Maintenez les robinets fermés, replacez bien les chapeaux; inscrivez "Vides"; séparez-les des "Pleines" et retournez-les rapidement.

Emploi interdit: N'utilisez une bouteille ou son contenu que pour ce à quoi elle est destinée, mais JAMAIS comme support ou rouleau.

Placez les bouteilles pour qu'elles ne tombent pas. Lorsqu'un détendeur (et un boyau) est monté sur elles, placez les ou attachez-les debout.

Passages et lieux de travail. Enlevez les bouteilles d'un endroit où l'on pourrait les frapper.

Transport des bouteilles. Avec une grue, utilisez un support fiable tel qu'une plate-forme ou un cadre. NE SOULEVEZ PAS des bouteilles du sol par leur robinet ou chapeau, ou avec des chaînes, élingues ou aimants.

N'EXPOSEZ PAS les bouteilles à une chaleur excessive, aux étincelles, au laitier et aux flammes, etc., pouvant causer leur rupture. Le contenant ne doit jamais dépasser 55°C. Refroidissez en pulvérisant de l'eau si nécessaire.

Protégez les bouteilles et particulièrement les soupapes contre les chocs, les chutes, les chutes d'objets et la température. Remettez bien les chapeaux lorsque vous déplacez les bouteilles.

Robinet coincé. N'UTILISEZ PAS un marteau ou une clé métallique pour ouvrir un robinet de bouteille que l'on ne peut pas ouvrir à la main. Avisez votre fournisseur.

Mélange de gaz. N'essayez jamais de mélanger des gaz dans une bouteille.

Ne rechargez jamais une bouteille. Les éléments de la bouteille ne doivent jamais être modifiés ou remplacés.

3. Boyau

Utilisation interdite. N'utilisez jamais un boyau autre que celui approprié au gaz indiqué. La règle générale d'identification est: rouge pour les gaz combustibles, vert pour l'oxygène, et noir pour les gaz inertes.

Utilisez des bagues ou colliers appropriés au boyau (et non du fil ordinaire ou autre substitution) pour brancher les boyaux à l'appareillage.

N'utilisez pas des raccords en cuivre. N'utilisez que des accessoires standard en laiton pour raccorder un boyau.

Utilisez une petite longueur de boyau. Cela évitera les noeuds et l'usure prématurée. Suspendez le boyau audessus du sol pour éviter qu'il ne soit écrasé, piétiné ou endommagé.

Enroulez le surplus de boyau pour éviter les noeuds et emmêlements. Évitez que le boyau ne soit endommagé par des tranchants, étincelles, laitier et flamme nue.

Page 18

Repair leaky or worn hose by cutting area out and splicing (1-2D3). Do NOT use tape.

4. Proper Connections

Clean cylinder valve outlet of impurities that may clog orifices and damage seats before connecting regulator. Except for hydrogen, crack valve momentarily, pointing outlet away from people and sources of ignition. Wipe with a clean lintless cloth.

Match regulator to cylinder. Before connecting, check that the regulator label and cylinder marking agree, and that the regulator inlet and cylinder outlet match. NEVER CONNECT a regulator designed for a particular gas or gases to a cylinder containing any other gas.

Tighten connections. When assembling threaded connections, clean and smooth seats where necessary. Tighten. If connection leaks, disassemble, clean, and retighten using properly fitting wrench.

Adapters. Use a CGA adapter (available from your supplier) between cylinder and regulator, if one is required. Use two wrenches to tighten adapter marked RIGHT and LEFT HAND threads.

Regulator outlet (or hose) connections may be identified by right hand threads for oxygen and left hand threads (with grooved hex on nut or shank) for fuel gas.

5. Pressurizing Steps:

Drain regulator of residual gas through suitable vent before opening cylinder (or manifold valve) by turning adjusting screw in (clockwise). Draining prevents excessive compression heat at high pressure seat by allowing seat to open on pressurization. Leave adjusting screw engaged slightly on single-stage regulators.

Stand to side of regulator while opening cylinder valve.

Open cylinder valve slowly so that regulator pressure increases slowly. When gauge is pressurized (gauge reaches regulator maximum) leave cylinder valve in following position: For oxygen, and inert gases, open fully to seal stem'against possible leak. For fuel gas, open to less than one turn to permit quick emergency shutoff.

Use pressure charts (available from your supplier) for safe and efficient, recommended pressure settings on regulators.

Check for leaks on first pressurization and regularly there-after. Brush with soap solution (capful of lvory Liquid* or equivalent per gallon of water). Bubbles indicate leak. Clean off soapy water after test; dried soap is combustible.

E. User Responsibilities

Remove leaky or defective equipment from service immediately for repair. See User Responsibility statement in equipment manual.

*Trademark of Proctor & Gamble

Vérifiez régulièrement les fuites, l'usure et les raccordements lâches. Plongez le boyau sous pression dans de l'eau; les bulles indiqueront les fuites.

Réparation. Coupez la partie percée ou usée, et raccordez (1-2D3). N'UTILISEZ JAMAIS de ruban adhésif.

4. Branchements corrects

Avant de brancher le détendeur, nettoyez la sortie du robinet de la bouteille des impuretés qui peuvent obstruer les orifices et endommager les sièges. Sauf pour l'hydrogène, ouvrez momentanément le robinet, en éloignant la sortie des personnes et des sources inflammables. Essuyez avec un tissu propre et non graisseux.

Appareillez le détendeur à la bouteille. Avant de brancher, vérifiez que la marque du détendeur et la description de la bouteille concordent, et que l'orifice d'entrée du détendeur et l'orifice de sortie de la bouteille aillent ensemble. NE BRANCHEZ JAMAIS un détendeur conçu pour un gaz spécial (ou des gaz spéciaux) à une bouteille contenant d'autres gaz.

Serrez les branchements. Lorsque vous assemblez des branchements filetés, nettoyez et polissez les sièges où c'est nécessaire. Serrez. Si les branchements perdent, démontez-les, nettoyez et resserez avec une clef adéquate.

Adaptateurs. Placez, si besoin est, un adaptateur CGA (en vente chez votre fournisseur) entre la bouteille et le détendeur. Avec deux clefs, serrez l'adaptateur fileté À DROITE et À GAUCHE.

On peut reconnaître les branchements de sortie du détendeur (ou boyau) à l'aide du filetage à droite pour l'oxygène et à gauche (identifié par un écrou cannelé) pour les gaz combustibles.

5. Démarches de mise en pression

Purgez le détendeur de résidu de gaz avant d'ouvrir la bouteille (ou le robinet de canalisation) en serrant la vis de réglage (dans le sens des aiguilles d'une montre). Cette opération permet au siège de haute pression de s'ouvrir à la mise en pression, supprimant ainsi toute surchauffe de compression. Maintenez la vis de réglage des détendeurs à simple détente légèrement engagée. Avant d'ouvrir le robinet de la bouteille, assurez-vous que les boyaux sont branchés et que les soupapes aval sont fermées.

Tenez-vous latéralement au détendeur en ouvrant le robinet de la bouteille. Ouvrez-le lentement pour que la pression du détendeur monte progressivement. Lorsque le manomètre est mis sous pression (indique le maximum) le robinet de la bouteille de gaz inerte ou d'oxygène devra être ouvert à fond pour assurer l'étanchéité et celui de la bouteille de gaz combustible ouvert de moins d'un tour pour pouvoir le refermer rapidement en cas d'urgence.

Référez-vous aux tableaux de pression (distribués par votre fournisseur) pour un réglage recommandé de pression sûr et efficace sur les détendeurs. Vérifiez les fuites à la première mise en pression puis régulièrement, brossez avec une solution savonneuse (un bouchon d'Ivory Liquid* ou semblable par gallon d'eau). Les bulles indiquent une fuite. Enlevez l'eau savonneuse après examen; le savon sec est inflammable.

*Marque de Commerce de Proctor & Gamble.

Page 19

F. Leaving Equipment Unattended

Close gas supply at source and drain gas.

G. Rope Staging-Support

Rope staging-support should not be used for welding or cutting operation; rope may burn.

1-3. ARC WELDING – Comply with precautions in 1-1, 1-2, and this section. Arc Welding, properly done, is a safe process, but a careless operator invites trouble. The equipment carries high currents at significant voltages. The arc is very bright and hot. Sparks fly, fumes rise, ultraviolet and infrared energy radiates, weldments are hot, and compressed gases may be used. The wise operator avoids unnecessary risks and protects himself and others from accidents. Precautions are described here and in standards referenced in index.

A. Burn Protection

Comply with precautions in 1-2.

The welding arc is intense and visibly bright. Its radiation can damage eyes, penetrate lightweight clothing, reflect from light-colored surfaces, and burn the skin and eyes. Skin burns resemble acute sunburn, those from gas-shielded arcs are more severe and painful. DON'T GET BURNED; COMPLY WITH PRECAU-TIONS.

1. Protective Clothing

Wear long-sleeve clothing (particularly for gas-shielded arc) in addition to gloves, hat, and shoes (1-2A). As necessary, use additional protective clothing such as leather jacket or sleeves, flame-proof apron, and fireresistant leggings. Avoid outergarments of untreated cotton.

Bare skin protection. Wear dark, substantial clothing. Button collar to protect chest and neck and button pockets to prevent entry of sparks.

2. Eye and Head Protection

Protect eyes from exposure to arc. NEVER look at an electric arc without protection.

Welding helmet or shield containing a filter plate shade no. 12 or denser must be used when welding. Place over face before striking arc.

Protect filter plate with a clear cover plate.

Cracked or broken helmet or shield should NOT be worn; radiation can pass through to cause burns.

Cracked, broken, or loose filter plates must be replaced IMMEDIATELY. Replace clear cover plate when broken, pitted, or spattered.

E. Responsabilités de l'usager

Ôtez immédiatement les parties percées ou défectueuses. Voir les Responsabilités de l'Usager du manuel de l'appareil.

F. Appareil laissé sans surveillance

Fermez l'alimentation de gaz à la source et purgez.

G. Liens et supports temporaires

Pour vos travaux de soudage ou de coupage, n'utilisez pas de la corde comme soutien, elle est inflammable.

1-3. SOUDAGE À L'ARC - Conformez-vous aux précautions des paragraphes 1.1 et 1.2 de cette section. Le soudage à l'arc bien exécuté est sûr, mais un soudeur négligent est un danger. Le poste de soudage transporte des courants élevés sous de fortes tensions. L'arc est très vif et chaud. Les étincelles volent, les vapeurs montent, l'énergie ultra-violette et infrarouge rayonnent, les soudures sont chaudes, et des gaz comprimés peuvent être utilisés. Le soudeur prudent évite les risques inutiles, se protège et protège autrui contre les accidents. Les précautions sont décrites ici et dans les normes données dans l'Index.

A. Protection contre les brûlures

Conformez-vous aux précautions du paragraphe 1.2. L'arc de soudage est intense et visiblement vif. Son rayonnement peut blesser les yeux, traverser les habits légers, se réfléchir sur les surfaces claires, et brûler la peau et les yeux. Les brûlures de la peau ressemblent à un gros coup de soleil. Celles d'arcs sous gaz protecteur sont plus graves et plus douloureuses. NE VOUS BRÛLEZ PAS - SUIVEZ LES PRÉCAUTIONS.

1. Vêtements de protection

Portez des vêtements à manches longues (surtout pour l'arc en atmosphère inerte) avec gants, masque et chaussures (1.2A.).

Si nécessaire portez en plus une veste ou des manches en cuir, un tablier et des guêtres ignifugés. De préférence ne portez pas de vêtements en coton non traité.

Protection de la peau. Portez des vêtements épais foncés. Boutonnez le col pour protéger la poitrine et le cou, et boutonnez les poches pour prévenir l'infiltration d'étincelles.

2. Protection des yeux et de la tête

Évitez que vos yeux soient exposés à l'arc. NE regardez JAMAIS un arc électrique sans protection.

Lorsque vous soudez, portez un écran ou masque avec verre filtrant teinté N° 12 ou plus foncé. Mettez-le sur le visage avant d'amorcer l'arc.

Protégez le verre filtrant d'un couvre-verre clair. NE PORTEZ PAS un masque fendu ou brisé; le rayonnement peut s'infiltrer et causer des brûlures.

Les verres filtrants fendus, brisés ou lâches doivent être remplacés IMMÉDIATEMENT. Remplacez un couvreverre brisé, piqué ou taché par des projections.

Page 20

Flash goggles with side shields MUST be worn under the helmet to give some protection to the eyes should the helmet not be lowered over the face before an arc is struck. Looking at an arc momentarily with unprotected eyes (particularly a high intensity gas-shielded arc) can cause a retinal burn that may leave a permanent dark area in the field of vision.

3. Protection of Nearby Personnel

Enclosed welding area. For production welding, a separate room or enclosed bay is best. In open areas, surround the operation with low-reflective, non-combustible screens or panels. Allow for free air circulation, particularly at floor level.

Viewing the weld. Provide face shields for all persons who will be looking directly at the weld.

Others working in area. See that all persons are wearing flash goggles.

Before starting to weld, make sure that screen flaps or bay doors are closed.

B. Toxic Fume Prevention

Comply with precautions in 1-2B.

Generator engine exhaust must be vented to the outside air. Carbon monoxide can kill.

C. Fire and Explosion Prevention

Comply with precautions in 1-2C.

Equipment's rated capacity. Do not overload arc welding equipment. It may overheat cables and cause a fire.

Loose cable connections may overheat or flash and cause a fire.

Never strike an arc on a cylinder or other pressure vessel. It creates a brittle area that can cause a violent rupture or lead to such a rupture later under rough handling.

D. Compressed Gas Equipment

Comply with precautions in 1-2D.

E. Shock Prevention

Exposed hot conductors or other bare metal in the welding circuit, or in ungrounded, electrically-HOT equipment can fatally shock a person whose body becomes a conductor. DO NOT STAND, SIT, LIE, LEAN ON, OR TOUCH a wet surface when welding, without suitable protection.

Vous devez portez des lunettes à écrans latéraux sous le masque pour protéger les yeux dans le cas où le masque ne serait pas abaissé sur le visage avant l'amorçage de l'arc. Regarder momentanément un arc sans protection (principalement un arc en atmosphère inerte à haute intensité) peut brûler la rétine et laisser un point sombre permanent dans le champ de vision.

3. Protection du personnel à proximité

Local de soudage fermé. Pour le soudage de production, il vaut mieux utiliser une salle séparée ou une baie fermée. Dans les locaux ouverts, entourez les travaux d'écrans ou panneaux peu réfléchissants et ininflammables. Laissez l'air circuler librement, particulièrement au niveau du sol.

Donnez des masques aux personnes qui regarderont directement la soudure.

Autres personnes travaillant sur les lieux. Veillez à ce que toutes les personnes portent les lunettes de protection.

Avant d'attaquer la soudure, assurez-vous que les rebords d'écran ou les portes soient fermés.

B. Prévention des gaz toxiques

Suivez les précautions du paragraphe 1.2B. L'échappement du moteur de la génératrice doit être ventilé à l'air extérieur. L'oxyde de carbone peut tuer.

C. Prévention des incendies et des explosions

Suivez les précautions 1.2C. Puissance nominale de l'appareil. Ne surchargez pas le poste de soudage à l'arc. Cela peut surchauffer les câbles et causer un incendie.

Les branchements lâches de câble peuvent surchauffer ou faire des étincelles et causer un incendie.

N'amorcez jamais un arc sur une bouteille ou autre récipient sous pression. Cela créerait un point de rupture entraînant à plus ou moins longue échéance l'explosion du réservoir.

D. Gaz comprimé

Suivez les précautions 1.2D.

E. Prévention des décharges électriques

Des conducteurs chargés ou métal nu incorporés au circuit de soudage ou à un appareil chargé sans mise à la terre peuvent donner une décharge fatale à la personne dont le corps devient conducteur. NE SOUDEZ PAS DEBOUT, ASSIS, COUCHÉ, PENCHÉ sur une surface humide ni en contact avec une telle surface sans protection appropriée.

Page 21

To protect against shock:

Keep body and clothing dry. Never work in damp area without adequate insulation against electrical shock. Stay on a dry duckboard, or rubber mat when dampness or sweat can not be avoided. Sweat, sea water, or moisture between body and an electrically HOT part - or grounded metal - reduces the body surface electrical resistance, enabling dangerous and possibly lethal currents to flow through the body.

1. Grounding the Equipment

When arc welding equipment is grounded according to the National Electrical Code, and the work is grounded according to ANSI Z49.1 "Safety In Welding And Cutting," a voltage may exist between the electrode and any conducting object. Examples of conducting objects include, but are not limited to, buildings, electrical tools, work benches, welding power source cases, workpieces, etc. Never touch the electrode and any metal object unless the welding power source is off.

When installing, connect the frames of each unit such as welding power source, control, work table, and water circulator to the building ground. Conductors must be adequate to carry ground currents safely. Equipment made electrically HOT by stray current may shock, possibly fatally. Do NOT GROUND to electrical conduit, or to a pipe carrying ANY gas or a flammable liquid such as oil or fuel.

Three-phase connection. Check phase requirements of equipment before installing. If only 3-phase power is available, connect single-phase equipment to only two wires of the 3-phase line. Do NOT connect the equipment ground lead to the third (live) wire, or the equipment will become electrically HOT – a dangerous condition that can shock, possibly fatally.

Before welding, check ground for continuity. Be sure conductors are touching bare metal of equipment frames at connections.

If a line cord with a ground lead is provided with the equipment for connection to a switchbox, connect the ground lead to the grounded switchbox. If a threeprong plug is added for connection to a grounded mating receptacle, the ground lead must be connected to the ground prong only. If the line cord comes with a three-prong plug, connect to a grounded mating receptacle. Never remove the ground prong from a plug, or use a plug with a broken off ground prong.

2. Electrode Holders

Fully insulated electrode holders should be used. Do NOT use holders with protruding screws.

3. Connectors

Fully insulated lock-type connectors should be used to join welding cable lengths.

Pour vous protéger contre les décharges électriques, maintenez votre corps et vêtements secs. Ne travaillez jamais dans un endroit humide sans isolation adéquate contre les décharges électriques. Lorsque vous ne pouvez éviter l'humidité ou la sueur, placez-vous sur un caillebotis sec ou un tapis en caoutchouc. La sueur, l'eau de mer, ou l'humidité entre le corps et une pièce CHARGÉE, ou une pièce de métal à la masse, réduisent la résistance électrique de la surface du corps, permettant l'entrée de courants dangereux, voire mortels.

1. Mise à la terre de l'appareil

Lorsque l'appareil de soudage à l'arc est mise à la terre suivant la norme National Electrical Code, et la masse est mise à la terre suivant la norme ANSI Z49.1 "Safety in Welding and Cutting," une tension peut exister entre l'électrode et un objet conducteur. Certaines de ces objets sont par exemple (mais pas seulement), des bâtiments, des outils électriques, des établis, des châssis de postes de soudure, des pièces d'ouvrage, etc. Ne jamais touchez l'électrode ou des objets en métal avant d'avoir mis le poste de soudure à l'arrêt.

À l'installation, branchez les châssis de chaque élément (source de courant, commande, établi et circuit d'eau) à la terre. Les conducteurs doivent pouvoir conduire les courants telluriques en toute sécurité. L'appareil chargé par les courants vagabonds peut donner une décharge risquant d'être mortelle. NE BRANCHEZ PAS VOTRE PRISE DE TERRE à une conduite électrique, ou à un tuyau de gaz ou de liquide inflammable tel que l'huile ou un combustible.

Connexion triphasée. Avant l'installation vérifiez la phase nécessaire à l'appareil. Si seul le triphasé est disponible, ne branchez l'appareil monophasé qu'à deux des fils de la ligne triphasée. NE BRANCHEZ PAS le conducteur de terre de l'appareil au troisième fil (sous tension), autrement l'appareil serait chargé: condition dangereuse pouvant donner une décharge fatale.

Avant le soudage, vérifiez si la prise de terre est uniforme. En branchant, assurez-vous que les conducteurs touchent le métal nu du châssis de l'appareil.

Lorsqu'un appareil doit être alimenté à partir d'un coffret d'alimentation, le conducteur de terre doit être relié à celui-ci.

Si vous avez en plus une fiche à trois broches pour la terre, ne branchez le conducteur de terre qu'à la broche de terre. Si le cordon d'alimentation a une fiche à trois broches, reliez-le à une prise femelle tripolaire reliée à la terre. N'enlevez jamais la broche de terre d'une fiche ou n'utilisez jamais une fiche dont la broche de terre serait brisée.

2. Pince-électrodes

Utilisez des pince-électrodes bien isolées. N'UTILISEZ PAS des pince-électrodes avec vis saillantes.

3. Connecteurs

Utilisez des connecteurs à verrouillage bien isolés pour assembler de longs câbles.

Page 22

Frequently inspect cables for wear, cracks and damage. IMMEDIATELY REPLACE those with excessively worn or damaged insulation to avoid possibly – lethal shock from bared cable. Cables with damaged areas may be taped to give resistance equivalent to original cable.

Keep cable dry, free of oil and grease, and protected from hot metal and sparks.

5. Terminals And Other Exposed Parts.

Terminals and other exposed parts of electrical units should have insulating covers secured before operation.

6. Electrode
- Equipment with output on/off control (contactor)

Welding power sources for use with the gas metal arc welding (GMAW), gas tungsten arc welding (GTAW) and similar processes normally are equipped with devices that permit on-off control of the welding power output. When so equipped the electrode wire becomes electrically HOT when the power source switch is ON and the welding gun switch is closed. Never touch the electrode wire or any conducting object in contact with the electrode circuit unless the welding power source is off.

b. Equipment without output on/off control (no contactor)

Welding power sources used with shielded metal arc welding (SMAW) and similar processes may not be equipped with welding power output on-off control devices. With such equipment the electrode is electrically HOT when the power switch is turned ON. Never touch the electrode unless the welding power source is off.

7. Safety Devices

Safety devices such as interlocks and circuit breakers should not be disconnected or shunted out.

Before installation, inspection, or service, of equipment, shut OFF all power and remove line fuses (or lock or red-tag switches) to prevent accidental turning ON of power. Disconnect all cables from welding power source, and pull all 115 volts line-cord plugs.

Do not open power circuit or change polarity while welding. If, in an emergency, it must be disconnected, guard against shock burns, or flash from switch arcing.

Leaving equipment unattended. Always shut OFF and disconnect all power to equipment.

Power disconnect switch must be available near the welding power source.

4. Câbles

Vérifiez fréquemment l'usure, les fissures et l'altération des câbles. REMPLACEZ IMMÉDIATEMENT ceux dont l'isolation serait trop usée ou altérée pour prévenir les décharges mortelles provoquées par un câble dénudé. Vous pouvez enrouler les parties endommagées de ruban adhésif en épaisseur suffisante pour donner une résistance de câble neuf. Maintenez les câbles secs, dépourvus d'huile et de graisse et mettez-les à l'abri du métal chaud et des étincelles.

5. Têtes de câbles et autres parties dénudées

Avant la mise en marche, les têtes de câbles et autres parties dénudées d'un appareil électrique doivent être munies de leurs couvrefils isolants.

6. Électrode
- a. Appareil équipé d'une commande marche/arrêt (contacteur)

En général, les postes de soudure utilisés pour le soudage à l'arc sous protection gazeuse avec électrode fusible (GMAW), ou avec électrode tungstène (GTAW) et des procès semblables sont équipés d'une commande marche/arrêt de la puissance de sortie. Lorsque l'interrupteur est en position "MARCHE" et l'interrupteur du pistolet est fermé, le fil d'électrode devient chargé. Ne touchez jamais le fil électrode ou tout autre objet conducteur faisant contact avec le circuit d'électrode sans couper le courant au poste de soudure.

b. Appareil non-équipé d'une commande marche/arrêt (sans contacteur)

Les postes de soudure utilisés pour le soudage à l'arc avec électrode enrobée (SMAW) et des procès semblabes peuvent être non-équipés d'une commande marche/arrêt de la puissance de sortie. Lorsque l'interrupteur est en position "MARCHE" l'électrode devient chargé. Ne touchez jamais l'électrode sans couper le courant au poste de soudure.

7. Dispositif de sécurité

Le dispositif de sécurité-verrouillage et coupe-circuit ne doit pas être débranché ou déshunté.

Avant l'installation, l'inspection ou la réparation de l'appareil, mettez l'alimentation sur ARRET et enlevez les fusibles généraux (ou verrouillez les interrupteurs) pour éviter une remise en MARCHE accidentelle. Débranchez tous les câbles de la source de courant ainsi que les prises des cordons d'alimentation en 115 volts.

Lors du soudage, n'ouvrez pas le circuit d'alimentation et ne changez pas la polarité. S'il est débranché au cours d'une urgence, faites attention aux brûlures de décharge ou aux jaillissements d'étincelles.

Appareil laissé sans surveillance. Mettez toujours sur ARRÊT et débranchez l'appareil.

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F. Protection For Wearers Of Electronic Life Support Devices (Pacemakers)

Magnetic fields from high currents can affect pacemaker operation. Persons wearing electronic life support equipment (pacemaker) should consult with their doctor before going near arc welding, gouging, or spot welding operations.

1-4. STANDARDS BOOKLET INDEX – For more information, refer to the following standards or their latest revisions and comply as applicable:

1. ANSI Standard Z49.1, SAFETY IN WELDING AND CUTTING obtainable from the American Welding Society, 550 Le Jeune Rd, P.O. Box 351040, Miami, FL 33135.
2. NIOSH, SAFETY AND HEALTH IN ARC WELDING AND GAS WELDING AND CUTTING obtainable from the Superintendent of Documents, U.S. Government Printing Office, Washington, D.C. 20402.
3. OSHA, SAFETY AND HEALTH STANDARDS, 29CFR 1910, obtainable from the U.S. Government Printing Office, Washington, D.C. 20402.
4. ANSI Standard Z87.1, SAFE PRACTICES FOR OCCUPATION AND EDUCATIONAL EYE AND FACE PROTECTION obtainable from the American National Standards Institute, 1430 Broadway, New York, NY 10018.
5. ANSI Standard Z41.1, STANDARD FOR MEN'S SAFETY -TOE FOOTWEAR obtainable from the American National Standards Institute, 1430 Broadway, New York, NY 10018
6. ANSI Standard Z49.2, FIRE PREVENTION IN THE USE OF CUTTING AND WELDING PRO-CESSES obtainable from the American National Standards Institute, 1430 Broadway, New York, NY 10018.
AWS Standard A6.0, WELDING AND CUT-TING CONTAINERS WHICH HAVE HELD COM-BUSTIBLES obtainable from the American Welding Society, 550 Le Jeune Rd., P.O. Box 351040, Miami, FL 33135.
8. NFPA Standard 51, OXYGEN FUEL GAS SYSTEMS FOR WELDING AND CUTTING obtainable from the National Fire Protection Association, 470 Atlantic Avenue, Boston, MA 02210.
9. NFPA Standard 70-1978, NATIONAL ELEC-TRICAL CODE obtainable from the National Fire Protection Association, 470 Atlantic Avenue, Boston, MA 02210.
10. NFPA Standard 51B, CUTTING AND WELDING PROCESSES obtainable from the National Fire Protection Association, 470 Atlantic Avenue, Boston, MA 02210.

L'interrupteur d'arrêt doit toujours se trouver à proximité de la source de courant.

F. Protection pour toute personne portant des appareils électroniques de sauvetage (appareil pour le règlement de battement de coeur)

Inducteurs de courant élevé peuvent nuire le fonctionnement d'un appareil pour le "règlement de battement de coeur." Toute personne portant un appareil électronique de sauvetage (appareil pour le règlement de battement de coeur), devrait consulter un docteur avant d'approcher toute opération de soudage à l'arc, à la gouge ou à point.

1-4. INDEX DES NORMES - Pour plus de renseignements, référez-vous aux normes de l'ACNOR ou aux normes américaines suivantes:

ANSI Standard Z49.1, SAFETY IN WELDING AND CUTTING distribué par l'American Welding Society, 550 Le Jeune Rd., P.O. Box 351040 Miami, FL 33135
NIOSH, SAFETY AND HEALTH IN ARC WELDING AND GAS WELDING AND CUTTING distribué par le Superintendent of Documents, U.S. Government Printing Office, Washington D.C. 20402
OSHA, SAFETY AND HEALTH STANDARDS, 29CFR 1910, distribué par U.S. Department of Labor, Washington D.C. 20210
4. ANSI Standard Z87.1, SAFE PRACTICES FOR OCCUPATION AND EDUCATIONAL EYE AND FACE PROTECTION distribué par l'American National Standards Institute, 1430 Broadway, New York, NY 10018
ANSI Standard Z41.1, STANDARD FOR MEN'S SAFETY - TOE FOOTWEAR distribué par l'addresse donnee en 4.
6. ANSI Standard Z49.2, FIRE PREVENTION IN THE USE OF CUTTING AND WELDING PRO-CESSES distribué par l'addresse donnee en 4.
7. AWS Standard A6.O, WELDING AND CUT-TING CONTAINERS WHICH HAVE COM-BUSTIBLES distribué par l'addresse donnee en 1.
8. NFPA Standard 51, OXYGEN FUEL GAS SYSTEMS FOR WELDING AND CUTTING distribué par la National Fire Protection Association, 470 Atlantic Avenue, Boston, MA 02210
NFPA Standard 70-1978, NATIONAL ELEC-TRICAL CODE distribué par l'addresse donnée en 8
10. NFPA Standard 51B, CUTTING AND WELDING PROCESSES distribué par l'addresse donnée en 8

Page 24

11. CGA Pamphlet P-1, SAFE HANDLING OF COM-PRESSED GASES IN CYLINDERS obtainable from the Compressed Gas Association, 500 Fifth Avenue, New York, NY 10036.
12. CSA Standard W117.2, CODE FOR SAFETY IN WELDING AND CUTTING obtainable from the Canadian Standards Association, Standards Sales, 178 Rexdale Boulevard, Rexdale, Ontario, Canada M9W 1R3.
13. NWSA booklet, WELDING SAFETY BIBLIOGRAPHY obtainable from the National Welding Supply Association, 1900 Arch Street, Philadelphia, PA 19103.
American Welding Society Standard AWSF4.1 "Recommended Safe Practices for the Preparation for Welding and Cutting of Containers and Piping That Have Held Hazardous Substances", obtainable from the American Welding Society, 550 Le Jeune Rd., P.O. Box 351040, Miami, FL 33135.
15. ANSI Standard Z88.2 "Practice for Respiratory Protection" obtainable from the American National Standards Institute, 1430 Broadway, New York, NY 10018.

11. CGA Pamphlet P-1, SAFE HANDLING OF COM-PRESSED GASES IN CYLINDERS distribué par la Compressed Gas Association, 500 Fifth Avenue, New York, NY 10036.
CSA Standard W117.2, CODE FOR SAFETY IN WELDING AND CUTTING distribué par la Canadian Standards Association, Standards Sales, 178 Rexdale Boulevard, Rexdale, Ontario, Canada M9W 1R3.
NWSA booklet, WELDING SAFETY BIBLIOGRAPHY distribué par la National Welding Supply Association, 1900 Arch Street Philadelphia, PA 19103.
American Welding Societe Standard AWSF4.1 "Recommended Safe Practices for the Preparation for Welding and Cutting of Containers and Piping That Have Held Hazardous Substances", distribué par l'American Welding Societe, 550 Le Jeune Rd., P.O. Box 351040, Miami, FL 33135
15. ANSI Standard Z88.2 "Practice For Respiratory Protection" distribué par l'American National Standards Institute, 1430 Broadway, New York, NY 10018.

Page 25

SECTION 2 - INTRODUCTION


Model	Dual	12	Dua	16
Speed Range	70-75	50 ipm (1	.8-19.1 m	ipm)
Boom Length	12 ft. (	3.7 m)	16 ft. (	4.9 m)
Swing		36	60°
Vertical Lift	Hor	izontal T	o 60º Abo	ove
Maximum Height (W/ 4 ft. or 1.2 m Post) At Full Lift Of Boom	17 ft. (	5.2 m)	21 ft. (	6.4 m)
Counterbalance (Patented)	Compression Spring Is Designed T Balance Boom At Any Angl Pressure Adjustment Is Provided T Hold The Boom At Any Desire Angle Or To Limit The Vertical Lift / 40° 50° or 60°.
	Net	Ship	Net	Ship
Weight	205 lbs. (93 kg)	325 lbs. (147 kg)	290 lbs. (132 kg)	410 lbs. (186 kg)

Figure 2-1. Specifications

2-1. GENERAL INFORMATION AND SAFETY

A. General

Information presented in this manual and on various labels, tags, and plates on the unit pertains to equipment design, installation, operation, maintenance, and troubleshooting which should be read, understood, and followed for the safe and effective use of this equipment.

B. Safety

The installation, operation, maintenance, and troubleshooting of arc welding equipment requires practices and procedures which ensure personal safety and the safety of others. Therefore, this equipment is to be installed, operated, and maintained only by qualified persons in accordance with this manual and all applicable codes such as, but not limited to, those listed at the end of Section 1 - Safety Rules For Operation Of Arc Welding Power Source.

Safety instructions specifically pertaining to this unit appear throughout this manual highlighted by the signal words WARNING and CAUTION which identify different levels of hazard.

WARNING statements include installation, operation, and maintenance procedures or practices which if not carefully followed could result in serious personal injury or loss of life.

CAUTION statements include installation, operation, and maintenance procedures or practices which if not carefully followed could result in minor personal injury or damage to this equipment.

A third signal word, IMPORTANT , highlights instructions which need special emphasis to obtain the most efficient operation of this equipment.

2 - 2. RECEIVING-HANDLING - Before installing this equipment, clean all packing material from around the unit, and carefully inspect for any damage that may have occured during shipment. Any claims for loss or damage that may have occurred in transit must be filed by the purchaser with the carrier. A copy of the bill of lading will be furnished by the manufacturer on request if occasion to file claim arises.

When requesting information concerning this equipment, it is essential that Model Description and Serial Number of the equipment be supplied.

2 – 3. DESCRIPTION – This unit is a boom mounted wire feeder. The wire feeder is of the constant wire feed speed type which feeds wire alternately from two welding guns. It is designed to be used in conjunction with one or two constant voltage welding power sources.

The boom is a patented design allowing both vertical lift and swing. Cables are routed through the boom from the feeder control to the wire drive assembly.

The wire feeder is a heavy duty wire feeding unit containing all the controls and equipment needed to supply welding wire and shielding gas to the welding guns.

Page 26

3 - 1. LOCATION AND ASSEMBLY (Figure 3-1)

A. Location

Place the unit in a location which allows room for the boom to swing horizontally in the desired arc and to pivot upward to the desired angle. Be sure to provide sufficient clearance from obstructions at the wire support end of the unit when the boom swings. Install the unit to a structure of sufficient construction to support the weight of the unit when the boom is in the horizontal position.

B. Assembly
1. Existing Support (Customer Supplied)

WARNING : FALLING BOOM can cause serious personal injury and equipment damage.

Use 2-1/2 in. (63.5 mm) diameter, Schedule 40 pipe (wall thickness of 0.203 in. or 5.2 mm) as support pipe for 12 foot (3.7 m) booms.
Use 5 in. (127 mm) diameter, Schedule 40 pipe (wall thickness of 0.258 in. or 6.6 mm) as support pipe for 16 foot (4.9 m) booms.

a. Uncrate and remove all packing material from the unit.
b. Mount post support to the desired structure.

WARNING: FALLING BOOM can cause serious personal injury and equipment damage.

Securely mount unit to a structure that can support the weight of the unit when the boom is in the horizontal position.
- c. Complete Steps c thru g in Subsection 2. Post Support.
2. Post Support (Optional)
- a. Uncrate and remove all packing material from the unit.
- b. Mount post support to the desired structure.

TB-081 753-B

WARNING: FALLING BOOM can cause serious personal injury and equipment damage.

• Securely mount unit to a structure that can support the weight of the unit when the boom is in the horizontal position.

Figure 3 - 1. Base And Boom Assembly

Page 27

c. Remove yoke pin, nut, washers and bolt from the yoke and swivel plates.

WARNINGE RELEASE OF SPRING PRESSURE WITHOUT BOOM ATTACHED can cause serious personal injury and equipment damage.

Perform installation exactly as outlined in step-bystep instructions below.
Do not remove safety collar until instructed to do so.
Retain safety collar for future disassembly use.
- d. Place bearing on top of post, and insert swivel into post.
- e. Place the boom base plate between the two swivel plates.
- f. Slide washer onto bolt, and insert bolt through hole in swivel plates. Slide washer onto bolt, and install nut onto bolt. Tighten nut; then back off nut 1/2 turn.
- g. Insert yoke pin through yoke hole, and install cotter pin through pin.

CAUTION : EXCESSIVE FRICTION can damage equipment.

• Every six months lubricate swivel to prevent wear. Excessive lubrication is not required or recommended.

3. Base Support (Optional)

IMPORTANT: If an optional base support was purchased with the unit, mounting holes are provided for fastening the base support to the floor.

WARNING: FALLING BOOM can cause serious personal injury and equipment damage.

For mounting base support use, as a minimum, 1/2 in. (12.7 mm) diameter, S.A.E. grade 5 bolts.
Use equivalent strength, non-corrosive bolts if unit is mounted in an extremely damp environment.
- a. Uncrate and remove all packing material from the unit.
- b. Fasten base support to the floor.
- c. Complete Steps c through g in Subsection2. Post Support.

CAUTION : EXCESSIVE FRICTION can damage equipment.

• Periodically lubricate swivel to prevent wear. Excessive lubrication is not required or recommended.

4. Swingpak Base (Optional)
- a. Uncrate and remove all packing material from the Swingpak base.

WARNING: FALLING BOOM can cause serious personal injury and equipment damage.

Mount welding power source on Swingpac base before mounting Swingarc.
- b. Uncrate and remove all packing material from the Swingarc unit.
- c. Complete Steps c through g in Subsection 2. Post Support.

CAUTION EXCESSIVE FRICTION can damage equipment.

• Every six months lubricate swivel to prevent wear. Excessive lubrication is not required or recommended.

3 - 2. INSTALLATION OF WIRE SUPPORT (Figures 3-1 And 3-2)

1. Remove the securing screws and lock washers from the swivel base (see Figure 3-1).
2. Place the wire support over the holes in the swivel base.
3. Insert securing screws with lock washers and tighten.

TB-081 754

Figure 3 - 2. Wire Support And Hub Assembly

3 - 3. REINSTALLATION OF HUB ASSEMBLY

(Figure 3-2) - If it should become necessary to replace part or all of the hub assembly(s), reinstall the new hub assembly(s) as follows:

1. Slide the following items onto the hub support shaft in order given:
- a. Fiber Washer
- b. Brake Washer

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c. Hub
d. Brake Washer
e. Fiber Washer
f. Keyed Washer
g. Spring
h. Flat Washer
2. Rotate hex nut onto support shaft. Hex nut should be rotated only until a slight drag is felt while turning hub.
3. Install welding wire according to the applicable Section: 3-5 for spool-type wire; and 3-6 for reeltype wire.
4. Reinstall retaining ring onto hub.

3 - 4. INSTALLATION OF WIRE GUIDE EXTEN-SIONS (Figure 3-6) - To install the wire guide extensions, proceed as follows:

1. Locate supplied wire guide extensions.
Loosen bolts on wire guide fittings, and insert end of monocoil liners near cable tie into fittings. Be sure remaining end of monocoil liners are flush with end of hoses.
3. Tighten bolts to secure monocoil liners. Be sure not to crush the liners.

3 - 5. INSTALLATION OF SPOOL-TYPE WIRE (Figure 3-2)

1. Remove retaining ring.
2. Slide spool of wire onto hub so that the wire feeds off top of spool.
Rotate spool until hole in spool aligns with pin in hub. Slide spool onto hub until it seats against back flange of the hub.
4. Reinstall retaining ring onto hub.

3 - 6. INSTALLATION OF OPTIONAL WIRE REEL AND REEL-TYPE WIRE (Figure 3-3) - The following procedure applies to both the left and right sides.

1. Remove retaining ring and, if applicable, wire reel assembly from hub (see Figure 3-3).
2. Lay wire reel assembly flat on a table or floor.
3. Remove spanner nut from wire reel assembly.
4. Remove wire retainer, and install wire onto wire reel. Be sure that wire feeds off top of reel.
5. Reinstall wire retainer and spanner nut onto wire reel.
6. Slide wire reel assembly onto hub, and rotate assembly until hub guide pin is seated in reel.

7. Reinstall retaining ring onto hub.

Retaining Ring

Figure 3 - 3. Reel Installation

3 - 7. DRIVE MOTOR VENT SCREW – The drive motor is provided with a vent screw which must be removed before operating the wire feeder. The vent screw can be removed through the hole provided in the motor shroud (see Figure 3-1).

CAUTION PRESSURE IN WIRE DRIVE MOTOR GEAR BOX will damage motor.

• Remove vent screw before operation.

Warranty is void if the vent screw is not removed before operation.

3 - 8. DRIVE ROLL AND WIRE GUIDE INSTALLA-TION (Figures 3-4 And 3-5) – Upon intitial installation, or as a result of changes in wire size and type, it is necessary to install the required drive rolls and wire guides.

IMPORTANT : Base selection of drive rolls upon the following recommended usages:

1. V-Groove rolls for hard wire.
2. U-Groove rolls for soft and soft shelled cored wires.

3. U-Cog rolls for extremely soft shelled wires (usually hard surfacing types).

4. Split V-Knurled rolls for hard shelled cored wires.

5. Drive roll types may be mixed to suit particular requirements (example: V-knurled roll in combination with U-groove).

Having selected the appropriate drive rolls and wire guides, proceed as follows:

A. Drive Roll Installation (Figures 3-4 And 3-5)

1. Loosen pressure adjustment knob, and pivot it free of cover.
2. Pivot gear cover away to expose pressure gear.
3. Loosen and remove the three securing screws on each gear.

Page 29

Figure 3 - 4. Drive Roll Installation

4. For one-piece drive rolls: Slide a drive roll onto the drive gear and pressure gear with holes aligned, and secure with screws.

For split drive rolls: Align holes on each side of split drive rolls, insert a securing screw, and slide a drive roll onto the drive gear and pressure gear with screw in line with one of the threaded holes. Insert remaining screws and tighten.

IMPORTANT: One-Piece drive rolls are of the double usage type. When the grooves become worn, reverse each drive roll, locating the unused groove in position to feed the wire.

Split drive rolls are of the double usage type. When the knurled groove of the drive rolls becomes worn, the split halves may be reversed so that the unused edges will now provide a new knurled groove.

IMPORTANT: To ensure proper gripping action of U-Cog drive rolls, install both rolls showing slots on the side or both showing the side without slots. Also, line up the blunted teeth on the pressure gear roll directly over the spaces between the teeth on the drive gear roll (see Figure 3-5).

B. Inlet Wire Guide (Figure 3-4)

1. For .023 thru 5/64 in. (0.6 thru 2.0 mm) wire.
- a . Insert liner into inlet wire guide, and secure with setscrew.

b. Loosen the inlet wire guide securing screw.

IMPORTANT: Wire guides should be installed so that the tip of the guide is as close to the drive roll as possible without touching it.

c . Insert guide assembly into drive assembly. Secure by tightening screw.
2. For 3/32 thru 1/8 in. (2.4 thru 3.2 mm) wire.
- a . Remove anti-wear guide(s) from inlet wire guide.
- b. Loosen the inlet wire guide securing screw.

IMPORTANT: Wire guides should be installed so that the tip of the guide is as close to the drive roll as possible without touching it.

c. Insert the inlet wire guide into drive assembly as illustrated in Figure 3-4. Secure by tightening screw.
d. Install anti-wear guide(s) onto inlet wire guide, and secure with setscrew.

IMPORTANT: Drive roll alignment has been factory set, but if readjustment is necessary, rotate the drive gear securing bolt thereby moving the drive roll in or out to the desired position. The drive roll on the pressure gear will locate itself on the wire when the gear cover is closed and the gears mesh together.

Page 30

3 - 9. WATER CONNECTIONS (Optional)

CAUTION: OVERHEATING of Gas Metal Arc Welding (GMAW) gun can damage gun.

If using a water-cooled gun and recirculating coolant system, do not make connections from the coolant system to water valve. Instead, make connections directly from the coolant system to gun hoses.

A. Installation Of Water Hoses

Water/coolant is supplied to either one gun or both guns utilizing one water solenoid and the same input, output, and return hoses. The solenoid is energized when the POWER switch is placed in the ON position.

When a water-cooled gun(s) is used, route and connect the water hose from the water supply to the water input fitting on the rear of the control box. This fitting has 5/8-18 left-hand threads.

A water supply output fitting is provided on the front of the control box for making the water output connection. Connect water hose fitting from boom to the water output fitting on water valve. This fitting has 5/8-18 left-hand threads.

When water is required for one gun only, connect the water return hose to the appropriate adapter at the weld terminal on the drive assembly, and route hose to an appropriate disposal. If water is required for both guns, connect the return hose "Y" assembly to the adapter at each weld terminal. Connect water return hose to the "Y" assembly, and route hose to an appropriate disposal.

B. Electrical Reconnection Of Water Solenoid

WARNING: ELECTRIC SHOCK can kill.

Do not touch live electrical parts.
Shut down wire feeder and welding power source(s) and disconnect input power employing "lockout/tagging procedures" before making internal connections.

Lockout/tagging procedures consist of padlocking line disconnect switch in open position, removing fuses from fuse box, or shutting off and red-tagging circuit breaker or other disconnecting device.

Work on internal parts to be performed only by qualified persons.

The control is shipped connected to supply water when the POWER switch is in the ON position. The water solenoid circuitry can be modified to supply water when the appropriate gun trigger is pressed. To make electrical reconnection of water solenoid, proceed as follows:

1. Remove control box wrapper.
2. Locate terminal strip 1T on panel inside control box.
Right Side Only: To supply water on the right side when the Right Gun trigger is pressed, disconnect lead 6 from terminal A on terminal strip 1T, and reconnect it to terminal C.
Left Side Only: To supply water on the left side when the Left Gun Trigger is pressed, disconnect lead 6 from terminal A on terminal strip 1T, and reconnect it to terminal E.
Either side: To supply water on either side when the appropriate gun trigger is pressed, disconnect lead 6 from terminal A on terminal strip 1T, and reconnect it to terminal K.
6. Reinstall wrapper.
C. Water Connections To Gun

CAUTION: OVERHEATING of Gas Metal Arc Welding (GMAW) gun can damage gun.

If using a water-cooled gun and recirculating coolant system, do not make connections from the coolant system to water valve. Instead, make connections directly from the coolant system to gun hoses.

If water/coolant is required for one gun only, connect the gun water input hose to the water output hose at the motor end of the boom. If water is required for both guns, the water output hose from the control divides at the motor end of the boom to accept connections from both gun water input hoses. Connect the water return hose from the gun(s) to the adapter at the appropriate weld terminal on the drive assembly.

Reducing bushings are provided to accept 5/8-18 lefthand fittings. If the reducing bushings are removed, 7/8-14 left-hand fittings are present.

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3-10. WELDING GUN CONNECTIONS TO DRIVE ASSEMBLY

A. Gun Connectors To Drive Assemblies (Provides Weld Power And Shielding Gas) (Figure 3-4)

IMPORTANT: The outlet guide is provided as part of each gun or gun adapter assembly.

1. Loosen gun/feeder connector securing knob(s).

IMPORTANT: Wire guides should be installed so that the tip of the guide is as close to the drive roll as possible without touching it.

Insert gun/feeder connector(s) or gun/feeder adapters if required, which includes installed outlet guide(s), into drive assembly opposite respective inlet wire guide(s).
3. Tighten gun/feeder connector securing knob(s).
B. Gun Trigger (Figure 3-6)

WARNING : ELECTRIC SHOCK can kill.

Do not touch live electrical parts.
Do not touch either electrode wire when either gun trigger is pressed.
Isolate unused gun from workpiece.

Both electrode wires are electrically energized when either gun trigger is pressed.

Both welding wires and all metal parts in contact with them carry weld output when the welding power source contactor is energized.

Two four-pin plugs extend out of the motor end of the boom for connecting the gun trigger plugs to the wire feeder. Connect the Left Gun to the gun trigger plug labeled LEFT TRIGGER, and the Right Gun to the remaining gun trigger plug as follows: align keyways, insert plugs, and rotate threaded collars fully clockwise.

3-11. CONNECTIONS FROM BOOM TO CON-TROL BOX (Figure 3-6)

A. Gun Triggers

Two receptacles, labeled TRIGGER, are provided on the front of the control box for making gun trigger control connections. Connect the left gun trigger control plug from boom, labeled LEFT TRIGGER, to control box left TRIGGER receptacle and the remaining gun trigger control plug from boom to control box right TRIGGER receptacle as follows: align keyways, insert plugs, and rotate threaded collars fully clockwise.

B. Shielding Gas

Two shielding gas output fittings are provided on the front of the control box for making the shielding gas output connections. Connect gas hose fittings from boom to the appropriate shielding gas output fittings on

the gas valves. These fittings have 5/8-18 right-hand threads.

C. Remote Control (If Applicable)

Left and right remote control receptacles are provided on the front of the control box for making remote control connections. To make connections, proceed as follows: align keyways, insert plug from the remote or optional equipment into appropriate remote control receptacle, and rotate threaded collar(s) fully clockwise.

D. Motor Control

A motor control cord and plug PLG1 are provided at the rear of the control box for making motor control connections. To make connections, proceed as follows: align keyways, insert plug from motor control cord from the control end of the boom into PLG1 from the control box, and rotate threaded collar fully clockwise.

3-12. PULLEY ADJUSTMENT (Figure 3-1)

WARNING : ELECTRIC SHOCK can kill.

Do not touch live electrical parts.
Shut down the welding power source and wire feeder and be sure that they cannot be accidentally energized before adjusting pulley(s).

Two positions are available for adjusting the boom pulleys up or down to provide minimum bend in the wires. For small diameter wires (.023 thru 5/64 in. or 0.6 thru 2.0 mm), place pulley shaft in upper holes. For larger diameter wires (3/32 thru 1/8 in. or 2.4 thru 3.2 mm), place pulley shaft in lower holes. If a pulley adjustment is necessary because of a wire size change, proceed as follows:

1. Retract wire, and change to new wire size.
2. Loosen nuts securing pulley shaft to boom.
3. Move shaft to desired position: Upper holes for small diameter wires, lower holes for larger diameter wires.
4. Tighten nuts to secure pulley shaft.
5. Thread welding wire according to Section 3-17.

3-13. SAFETY COLLAR REMOVAL (Figure 3-1)

WARNING: RELEASE OF SPRING PRESSURE WITHOUT BOOM ATTACHED can cause serious personal injury and equipment damage.

Perform installation exactly as outlined in the following step-by-step instructions.
Do not remove safety collar until instructed to do so.
Retain safety collar for future disassembly use.

A safety collar is provided on top of the post to maintain spring pressure and prevent vertical movement during installation. The collar is required whenever the boom is

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disassembled or relocated. To remove the safety collar, proceed as follows:

1. Grasp boom and pull down slightly. The boom should be pulled down only far enough to remove the pressure which is applied to the safety collar.
2. Remove the safety collar, and retain for future use.
3. The boom should now balance in any position from horizontal to 60 degrees above horizontal. If the boom does not balance properly, proceed to Section 3-14.

3 - 14. BOOM ADJUSTMENTS (Figure 3-6)

A. Weight Lift Adjustment

WARNING FALLING BOOM can cause serious personal injury and equipment damage.

Maintain full threads on adjustment rod through the yoke.

Figure 3 - 6. Boom Adjustments

The amount of weight which the boom can retract into the upright position when released can be varied by adjusting the jam nut and adjustment rod located at the base of the boom. If heavier guns are installed on the end of the boom making it necessary to increase the amount of weight that the boom can lift, loosen the jam nut, and rotate the adjustment rod so that adjustment rod threads into the yoke. When the proper adjustment is obtained, tighten the jam nut against the base of the yoke. If lighter guns are used, rotate the adjustment rod so that the adjustment rod threads out of the yoke.

B. Locking Knob

By rotating the Locking Knob, located on the side of the swivel plate, in a clockwise direction, the boom may be held in any desired position. Rotating the Locking Knob in a counterclockwise direction permits the boom to free travel. Changing the position of the Locking Knob to the other threaded holes provided along the side of the swivel plate limits the lift of the boom to 50 degrees or 40 degrees respectively during free travel.

3 - 15. SUPPLY CONNECTIONS TO CONTROL BOX AND BOOM (Figure 3-7)

A. Shielding Gas

A hose and divided-hose assembly is supplied with the unit for making connections from one shielding gas source to the shielding gas input fittings on the rear of the control box. These fittings have 5/8-18 right-hand threads. To make connections, proceed as follows:

1. Connect one end of each side of divided hose assembly to the shielding gas input fittings on the rear of the control box.
2. Connect one end of shielding gas hose to the shielding gas input fitting on the divided-hose assembly.
3. Route and connect remaining end of hose to regulator on shielding gas supply.

IMPORTANT: If a different shielding gas is required for each welding gun, a separate hose can be connected from each shielding gas source to the appropriate input fitting on the rear of the control box.

B. Weld Cable

WARNING ELECTRIC SHOCK can kill.

Do not touch live electrical parts.
Shut down wire feeder and welding power source and disconnect input power employing "lockout/tagging procedures" before making weld cable connections.

Lockout/tagging procedures consist of padlocking line disconnect switch in open position, removing fuses from fuse box, or shutting off and red-tagging circuit breaker or other disconnecting device.

ARCING can damage weld cable terminal.

Clean weld cable terminal before connecting weld cable if necessary.
Tighten terminal nut securely.

Loose or dirty connections can cause erratic weld output.

WELD OUTPUT present on grounded wire feeder parts can cause equipment damage.

Do not allow welding cable to touch grounded feeder parts.

If the welding cable lug or exposed welding cable is in contact with any grounded feeder components during operation, the 115 Volts AC/Contactor Control cord and plugs may be damaged.

Two weld cables extend out of the control box end of the boom for making weld output connections to one or two welding power sources. For Electrode Positive/Reverse Polarity connections, proceed as follows:

If only one welding power source is used, route and connect the two weld cables extending out of the control box end of the boom to the Positive (+) weld output terminal on welding power source (see power source Owner's

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Figure 3 - 7. Control Box And Boom Connections

OM-1517 Page 21

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Manual). If necessary, use a weld cable extension of adequate size and capacity to reach power source. If cable extension is used, securely bolt and insulate connection point.

2. If two welding power sources are used, route each weld cable extending out of the control end of the boom to the appropriate welding power source. Connect one weld cable to the Positive (+) weld output terminal on one welding power source, and connect the remaining weld cable to the Positive (+) weld output terminal on the other welding power source (see power source Owner's Manuals). If necessary, use weld cable extensions of adequate size and capacity to reach power sources. If cable extensions are used, securely bolt and insulate connection points.
Route and connect weld cable(s) of adequate size and capacity from welding power sources Negative (-) weld output terminal(s) (see power source Owner's Manuals) to appropriate workpiece.

IMPORTANT: For Electrode Negative/Straight Polarity connections, reverse cable connections to weld output terminals on welding power source(s); electrode becomes negative.

C. 115 Volts AC/Contactor Control

WARNING : ELECTRIC SHOCK can kill; MOVING PARTS can cause injury.

Do not touch live electrical parts.
Keep clear of pinch points.

The unit will be electrically hot internally and ready to operate as soon as the 115 volts power plug is connected to the 115 volts ac source and the welding power source is energized.

CAUTION: IMPROPER VOLTAGE APPLIED TO WELDING POWER SOURCE CONTACTOR can damage wire feeder and welding power source.

Be sure welding power source contactor control circuitry requires external supply of 115 vac for contactor control.

This wire feeder supplies 115 volts ac to welding power source for contactor control.

1. Using One Welding Power Source

WARNING: ELECTRIC SHOCK can kill.

Do not touch live electrical parts.
Do not touch either electrode wire when either gun trigger is pressed.
Isolate unused gun from workpiece.

Both electrode wires are electrically energized when either gun trigger is pressed when using one welding power source.

Both welding wires and all metal parts in contact with them carry weld output when the welding power source contactor is energized.

The contactor control circuitry in this wire feeder is connected to operate both guns from one welding power source.

A 10 ft. (3.0 m) 4-conductor cord is provided for 115 volts ac power and contactor control connections between control box and welding power source. To make connections, proceed as follows:

a. Connect 115 volts ac/left contactor control plug to the 115 Volts AC/Left Contactor Control receptacle on rear of control box as follows: align keyways, insert plug, and rotate threaded collar fully clockwise.
b. Insert 115 volts ac power plug into 115 volts ac receptacle on welding power source, and rotate plug fully clockwise.
c. Insert contactor control plug into contactor control receptacle on welding power source, and rotate plug fully clockwise.

IMPORTANT: If the supplied control cord does not match the welding power source remote control receptacle, obtain the necessary adapter cord from your welding equipment distributor.

2. Using Two Welding Power Sources

WARNING : ELECTRIC SHOCK can kill.

Do not touch live electrical parts.
Shut down wire feeder and welding power sources and disconnect input power employing "lockout/tagging procedures" before making internal connections.

Lockout/tagging procedures consist of padlocking line disconnect switch in open position, removing fuses from fuse box, or shutting off and red-tagging circuit breaker or other disconnecting device.

Work on internal parts to be performed only by qualified persons.

Through minor modification, the contactor control circuitry of the wire feeder can be adapted to operate two welding power sources, that is, the left gun trigger governing contactor control to one welding power source, and the right gun trigger governing contactor control to the other. Obtain a proper interconnecting cord for right side contactor control, and proceed as follows:

a. Remove wrapper from control box.
b. Locate terminal strip 1T on panel inside control box.
c. Disconnect lead 39 from terminal K on terminal strip 1T, and reconnect it to terminal E.
d. Reinstall wrapper.

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e. Connect right contactor control plug to the Right Contactor Control receptacle on rear of control box as follows: align keyways, insert plug, and rotate threaded collar fully clockwise.
f. Insert contactor control plug into the right welding power source contactor control receptacle, and rotate plug fully clockwise.
g. Connect left contactor control plug to the 115 Volts AC/Left Contactor Control receptacle on rear of control box as follows: align keyways, insert plug, and rotate threaded collar fully clockwise.
h. Insert 115 volts ac power plug into 115 volts ac receptacle on left weld power source, and rotate plug fully clockwise.
i. Insert contactor control plug into contactor control receptacle on left welding power source, and rotate plug fully clockwise.

IMPORTANT: If the supplied control cord does not match the welding power source remote control receptacle, obtain the necessary adapter cord from your welding equipment distributor.

3 - 16. ADJUSTMENT OF HUB TENSION (Figure 3-2) - Check the hub tension by slowly rotating the wire spool or reel. The wire should unwind freely, but hub tension should be sufficient to keep wire taut and prevent backlash when the wire feed stops. If adjustment is required, loosen or tighten the hex nut on the end of the spindle support shaft accordingly.

3 - 17. WELDING WIRE THREADING

WARNING : ELECTRIC SHOCK can kill; MOVING PARTS can cause injury.

Do not touch live electrical parts.
Keep clear of pinch points.
Do not energize welding power source(s) or wire feeder until instructed to do so.

The welding wire and all metal parts in contact with it are energized while welding.

WELDING WIRE can cause puncture wounds; HOT SURFACES can burn skin.

Do not press gun trigger until instructed to do so.
Do not point gun toward any part of the body, any conductive surface, or other personnel when threading welding wire.
Allow gun to cool before touching.
- 1. Install the wire (reel-type or spool-type) as instructed in Section 3-5 or 3-6.
- 2. Cut off any portion of the free end of the wire, which is not straight. If necessary, straighten wire to remove cast. Be sure that the cut end is free from rough surfaces to permit proper feeding.
- 3. Manually route the wire through the wire guide tube on the side of the boom, over the wire pulley, and to the drive assembly.

4. Adjust hub tension according to Section 3-16 if necessary.
5. If necessary because of wire size change, adjust boom pulley(s) for minimum wire bend according to Section 3-12.
Loosen knob(s) on the drive roll pressure adjustment(s), pivot pressure adjustment(s) free of the cover(s), and pivot pressure gear assembly(ies) away to an open position.
Manually feed wire through the inlet wire guide and intermediate wire guide, if applicable, and on into the outlet wire guide. Feed approximately 4 inches (102 mm) of wire into the outlet wire guide.

IMPORTANT: If the U-Cog drive rolls do not align properly when the gear cover is closed, pivot the gear cover away from the drive gear, and rotate the pressure gear one tooth (see Section 3-8).

8. Pivot the pressure gear assembly(ies) closed making sure the teeth on the pressure gear(s) mesh with the teeth on the drive gear(s). The welding wire must be in the grooves of the drive rolls.
9. Pivot the pressure adjustment knob(s) until the washer(s) on the pressure adjustment(s) is seated on top of the gear cover(s).
10. Turn the pressure adjustment knob(s) in a clockwise direction until the drive rolls are tight against the welding wire. Do not overtighten.
11. Lay gun cable assembly out flat and straight (no coils in the cable/conduit).
12. Repeat Steps 1 thru 11 on the remaining side.
13. Energize the welding power source.
14. Place the wire feeder POWER switch in the ON position.
15. Press the JOG switch (see WARNING block at beginning of this section). Wire will feed through selected gun if drive roll pressure is properly adjusted to prevent slippage. If wire slippage is noticed, turn pressure adjustment knob clockwise in 1/4 turn increments until wire slippage stops. If excess pressure is required, check gun contact tube and gun liner for obstructions. Release the JOG switch when welding wire extends approximately one inch (25 mm) out of gun tip.
16. Repeat Step 15 for the remaining welding gun.
17. Shut down wire feeder and welding power source(s).

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Figure 4 - 1. Operator Controls

4 - 1. POWER SWITCH (Figure 4-1)

Placing the POWER switch S1 in the ON position applies 115 volts ac to the unit, placing it in an operational condition ready to feed wire and permit shielding gas to flow from either gun. Placing the POWER switch in the OFF position shuts down the wire feeder.

IMPORTANT: The welding power source must be energized before the POWER switch can be used to energize the wire feeder.

4 - 2. WIRE SPEED CONTROLS (Figure 4-1) - Two ten-turn WIRE SPEED controls provide the means of selecting the rate at which welding wire feeds into the weld. Rotating the Left WIRE SPEED control clockwise increases the wire feed speed from the Left Gun. Rotating the Right WIRE SPEED control clockwise increases the wire feed speed from the Right Gun.

4 - 3. JOG SWITCHES (Figure 4-1) - The JOG switches are spring-loaded toggle switches. When pressed, either switch completes the circuit to the motor without having to press the corresponding gun trigger. The Left JOG switch permits jogging of left wire at Left WIRE SPEED control setting, and Right JOG switch permits jogging of right wire at Right WIRE SPEED control setting without energizing welding circuits or corresponding shielding gas valves.

4 - 4. PURGE PUSH BUTTONS (Figure 4-1) - The PURGE push buttons are momentary-contact switches. The Left PURGE push button energizes the Left Gas

Solenoid and purges the shielding gas line of Left Gun. The Right PURGE push button energizes the Right Gas Solenoid and purges shielding gas line of Right Gun. The PURGE push buttons also allow the shielding gas regulator(s) to be adjusted without energizing the welding circuit.

4 - 5 . RESET CIRCUIT BREAKER (Figure 4 -1) – Circuit breaker CB1 provides protection to the feeder motor. If the motor is overloaded, CB1 would trip and stop all output. If the breaker trips, reset breaker according to Section 6-3.

4 - 6 . FUSE (Figure 4-1) - Fuse F1 provides protection from damage due to an internal short or excessive overload. If the fuse opens, the wire feeder will completely shut down. See Section 6-4 for fuse replacement procedure.

4 - 7. REMOTE CONTROL RECEPTACLES AND SWITCHES (Figure 4-1) - The Remote Control receptacles and switches are provided for use with certain optional controls. If a remote control is to be used, make connections as instructed in Section 3-11, and place the corresponding Remote Control switch in the REMOTE position. If a remote control is not to be used, place the corresponding Remote Control switch in the STANDARD position.

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4 - 8. BURNBACK CONTROLS (Optional) - The burnback circuitry in this control provides a means of keeping the welding wires from sticking to the workpiece after the corresponding gun triggers are released. The Left BURNBACK control keeps weld output present on the left welding wire and the Right BURNBACK control keeps weld output present on the

right welding wire from 0 to 15 cycles after the corresponding wire has stopped feeding. This delay action permits the welding wires to burn back to a point where they neither stick to the workpiece nor contact tubes. If welding wire sticks to the contact tube, decrease BURNBACK control setting. If welding wire sticks to the workpiece, increase BURNBACK control setting.

SECTION 5 - SEQUENCE OF OPERATION

5 - 1. GAS METAL ARC WELDING (GMAW)

WARNINGE ELECTRIC SHOCK can kill; MOVING PARTS can cause serious injury; IMPROPER AIR FLOW AND EXPOSURE TO ENVIRONMENT can damage internal parts.

Do not touch live electrical parts.
Keep clear of pinch points.
Keep all covers and panels in place while operating.

Warranty is void if the wire feeder is operated with any portion of the outer enclosure removed.

ARC RAYS, SPARKS, AND HOT SURFACES can burn eyes and skin; NOISE can damage hearing.

• Wear correct eye, ear, and body protection. FUMES AND GASES can seriously harm your health.

Ventilate to keep from breathing fumes and gases.
If ventilation is inadequate, use approved breathing apparatus.

WELDING WIRE can cause puncture wounds.

• Do not point guns toward any part of the body, any conductive surface, or other personnel.

HOT METAL, SPATTER, AND SLAG can cause fire and burns.

Watch for fire.
Have a fire extinguisher nearby, and know how to use it.
Allow work and equipment to cool before handling.

MAGNETIC FIELDS FROM HIGH CURRENTS can affect pacemaker operation.

Wearers should consult their doctor before going near arc welding, gouging, or spot welding operations.

See Section 1 - Safety Rules For Operation Of Arc Welding Power Source for basic welding safety information.

1. Make all connections and thread welding wire as instructed in Section 3.
2. Place Remote Control switch(es) on both power source(s) and wire feeder in desired position (see Section 4-7).
3. Energize the welding power source(s).
4. Place the POWER switch in the ON position.

5. Rotate the Right WIRE SPEED to the desired setting (see Section 4-2).
6. Momentarily press the Left JOG switch to shift control of the switching relay to the Left WIRE SPEED control, and rotate the LEFT WIRE SPEED control to the desired setting (see Section 4-2).
7. Turn on the shielding gas at the source(s).
8. Depress the PURGE push buttons for one minute.
9. Hold the tip of the desired gun approximately 1/2 inch (13 mm) from the workpiece.

WARNING : ELECTRIC SHOCK can kill.

Do not touch live electrical parts.
Do not touch welding wire or any metal part in contact with it while welding.

Both welding wires and all metal parts in contact with them carry weld output when the welding power source contactor is energized. When one welding power source is utilized, both electrode wires will be electrically energized when either gun trigger is pressed.

Press the gun trigger. Gas flows and wire feeds if drive roll pressure is properly adjusted to prevent slippage. If wire slippage is noticed, adjust drive roll pressure according to Section 3-17.

5 - 2. SHUTTING DOWN

1. Shut down wire feeder and welding power source(s).
2. Turn off shielding gas at the source(s).
3. Turn off all associated equipment.

WARNINGE HIGH CONCENTRATION OF SHIELDING GAS can harm health or kill.

• Shut off gas supply when not in use.

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IMPORTANT: Every six months inspect the labels on this unit for legibility. All precautionary labels must be maintained in a clearly readable state and replaced when necessary. See the Parts List for part number of precautionary labels.

6 - 1. INSPECTION AND UPKEEP - Usage and shop conditions will determine the frequency and type of maintenance. At minimum, inspect equipment every three months as follows:

WABNINGE ELECTRIC SHOCK can kill; WELDING WIRE can cause puncture wounds; HOT SURFACES can burn skin.

Do not touch live electrical parts.
Shut down wire feeder and welding power source(s) and disconnect input power employing "lockout/tagging procedures" before inspecting, maintaining, or servicing.

Lockout/tagging procedures consist of padlocking line disconnect switch in open position, removing fuses from fuse box, or shutting off and red-tagging circuit breaker or other disconnecting device.

Allow guns and unit to cool before touching.
Do not press gun triggers while performing maintenance on guns.
- 1. Inspect guns for broken areas, cracks, and loose parts: tighten, repair, and replace as required.
- 2. Carefully remove any weld spatter or dirt that has accumulated around the nozzle opening. Use a hardwood stick, never a metal tool.
- 3. Repair or replace, as required, all hose and cable; give particular attention to frayed and cracked insulation and areas where it enters equipment.
- 4. Remove grease and grime from components and moisture from electrical parts and cable.

CAUTION: FLYING DIRT AND METAL PAR-TICLES can injure personnel and damage equipment.

Point gun liner only in a safe direction away from personnel and equipment when cleaning with compressed air.
- 6. Blow out the gun wire guide liners with dry compressed air when changing wire. This will remove any metal chips and dirt that may have accumulated.

6 - 2. CLEANING OF DRIVE ROLLS

IMPORTANT: Failure to properly maintain the drive rolls can result in a buildup of wire particles which will decrease the efficiency of the wire feeding operation.

Every time welding wire is installed or changed, inspect the wire groove on the drive rolls for a buildup of wire particles. If necessary, clean the drive rolls as follows:

WARNING : ELECTRIC SHOCK can kill.

Do not touch live electrical parts. Keen clear of pinch points
Keep clear of pinch points. Shut down wire feeder
Shut down wire feeder and welding power source(s) and disconnect input power employing "lockout/tagging procedures" before inspecting, maintaining, or servicing.

Lockout/tagging procedures consist of padlocking line disconnect switch in open position, removing fuses from fuse box, or shutting off and red-tagging circuit breaker or other disconnecting device.

1. Remove the three drive roll securing screws from each drive roll, and remove drive rolls (see Section 3-8).

WARNING: HIGH ROTATIONAL SPEED may cause damage to drive rolls and injure personnel.

Do not allow drive rolls to rotate at high speed if compressed air is used for cleaning the drive roll assembly.
2. Using a wire brush, remove the buildup of wire particles in the wire grooves.
3. Reinstall drive rolls according to Section 3-8.
4. Resume operation.

6 - 3. MOTOR OVERLOAD BREAKER (Figure 4-1)

WARNING : ELECTRIC SHOCK can kill.

Do not touch live electrical parts.
Shut down wire feeder and welding power source(s) and disconnect input power employing "lockout/tagging procedures" before inspecting, maintaining, or servicing.

Lockout/tagging procedures consist of padlocking line disconnect switch in open position, removing fuses from fuse box, or shutting off and red-tagging circuit breaker or other disconnecting device.

The drive motor is protected from damage due to overload by circuit breaker CB1. CB1 is an automatictrip type breaker. If CB1 should open, the wire feeder would immediately stop the weld. When the circuit breaker is in (ON position), the circuit breaker is functional. When the button is out (OFF position), the breaker is open.

Should a motor overload occur and trip CB1, proceed as follows:

1. Check for jammed wire or clogged gun liner; and correct problem. If motor overload occurs frequently, repair or replace the motor or liner.
2. Check for binding drive gear or misaligned drive rolls, and correct problem.
3. Reset circuit breaker (depress button); it may be necessary to allow a cooling period before the breaker can be reset.

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4. Resume operation.

6 - 4. OVERLOAD PROTECTION (Figure 4-1)

WARNING : ELECTRIC SHOCK can kill.

Do not touch live electrical parts.
Shut down wire feeder and welding power source(s) and disconnect input power employing "lockout/tagging procedures" before inspecting, maintaining, or servicing.

Lockout/tagging procedures consist of padlocking line disconnect switch in open position, removing fuses from fuse box, or shutting off and red-tagging circuit breaker or other disconnecting device.

The wire feeder is protected from damage due to an internal short or excessive overload by fuse F1. If fuse F1 should open, the wire feeder would completely shut down. To replace the fuse, proceed as follows:

CAUTION: IMPROPER FUSES can damage unit.

Be sure replacement fuses are same size, type, and rating (see Parts List).
1. Depress and rotate fuse holder cover counterclockwise.
2. Pull out fuse with cover when fuse holder cover is free.
3. Insert new fuse into fuse holder cover.
4. Install fuse with fuse holder cover back into unit.
5. Depress and rotate fuse holder cover clockwise until cover is secure.

6 - 5. BRUSH INSPECTION AND REPLACEMENT (Figures 6-1 And 6-2)

WARNING : ELECTRIC SHOCK can kill.

Do not touch live electrical parts.
Shut down wire feeder and welding power source(s) and disconnect input power employing "lockout/tagging procedures" before inspecting, maintaining, or servicing.

Lockout/tagging procedures consist of padlocking line disconnect switch in open position, removing fuses from fuse box, or shutting off and red-tagging circuit breaker or other disconnecting device.

CAUTION: DISASSEMBLY OF MOTOR FIELD MAGNETS can result in personal injury and equipment damage.

• Limit drive motor repairs to brush replacement. The field magnets are very strong. If disassembly is attempted, injury to fingers and hands may result from the rotor being drawn back into the motor. The field magnets are matched sets and operation may be affected if the magnets are tampered with. Warranty is void if the motor is tampered with.

Work on internal parts to be performed only by qualified persons.

Figure 6 - 1. View Of Spring Assembly And Brush When Brush Cap Is Opened

1. Open brush cap by sliding screwdriver under catch and lifting. Remove brush cap.
2. Grasp spring retaining bracket with long-nose pliers.
3. Push spring retaining bracket in slightly, and move towards brush. This should release the spring assembly and it can be removed.
4. Pull brush out using brush pigtail.
If the brushes are less than 1/4 in. (6.4 mm) long, replacement is necessary. Disconnect brush pigtail from brush box tab, and remove brush.
6. Connect new brush pigtail to brush box tab.
7. Route pigtail through slot in brush box. Be sure that the pigtail will not come into contact with a metal surface.
8. Insert brush into brush box. Be sure that the low end of the bevel on the top of the brush is towards the spring.
9. Using long-nose pliers, insert spring assembly beside brush, sliding spring retaining bracket along brush box wall. The spring retaining bracket hooks on the brush box wall as il-lustrated in Figure 6-2.
10. If spring retaining bracket is in place, it will be against the brush box wall when pliers are released.

Figure 6 - 2. View Of Spring Assembly And Brush

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11. Be sure that the spring is in proper position as shown in Figures 6-1 and 6-2.
12. Replace and latch the brush cap.
13. Reconnect power to all equipment, and resume operation.

6 - 6. DRIVE SHAFT INSPECTION AND MAINTENANCE

WARNING ELECTRIC SHOCK can kill.

Do not touch live electrical parts.
Shut down wire feeder and welding power source(s) and disconnect input power employing "lockout/tagging procedures" before inspecting, maintaining, or servicing.

Lockout/tagging procedures consist of padlocking line disconnect switch in open position, removing fuses from fuse box, or shutting off and red-tagging circuit breaker or other disconnecting device.

Inspect and clean the drive shafts every six months. Where operating conditions are severe, perform more frequent inspections. Inspect the drive shafts for free movement by rotating the drive gears in the direction of wire travel. If either drive gear does not turn freely, clean the drive shafts and clutch assemblies in the large spur drive gear, and repack with a good quality gear grease as follows:

1. Retract wire past drive housings.
2. Disconnect welding guns.
3. Remove drive gears in both drive roll housings.
4. Remove motor gear guard.
5. Remove right drive roll housing.
6. Remove drive shafts and large spur drive gear.

CAUTION SOLVENTS CONTAINING PHENOL OR FORMIC ACID can damage plastic gears.

Do not use solvents containing phenol or formic acid.
- 7. Clean drive shafts, dry thoroughly, and grease.
- 8. Reinstall drive shafts in spur drive gears and drive roll housing, and secure housing to mounting bracket. Do not tighten mounting screw.
- 9. Reinstall drive gears on drive shafts. Check for proper alignment of drive roll housing on drive shaft by rotating drive gears in the direction of wire travel. If the drive gear does not turn freely, adjust the position of the drive roll housing until the drive shaft moves freely. Tighten mounting screws, and recheck for free movement.
10. Reinstall motor gear cover.

Figure 6 - 3. Circuit Board Replacement And Component Locations

Page 41

6 - 7. CIRCUIT BOARD REPLACEMENT PRO-CEDURE (Figure 6-3)

WARNING: ELECTRIC SHOCK can kill.

Do not touch live electrical parts.
Safely discharge capacitor C1 before replacing circuit board.
Shut down wire feeder and welding power source(s) and disconnect input power employing "lockout/tagging procedures" before inspecting, maintaining, or servicing.

Lockout/tagging procedures consist of padlocking line disconnect switch in open position, removing fuses from fuse box, or shutting off and red-tagging circuit breaker or other disconnecting device.

CAUTION: ELECTROSTATIC DISCHARGE (ESD) can damage circuit board components.

Put on properly grounded wrist strap BEFORE handling circuit boards.
Transport all static-sensitive components in proper static-shielding carriers or packages.
Perform work only at a static-safe work area.

Work on internal parts to be performed only by qualified persons.

1. Remove wrapper.
2. Remove screw securing circuit board to inside rear panel.
3. Remove circuit board from edge connector RC5, and set circuit board aside.
4. Install connector edge of new circuit board into RC5, and secure with screw removed in Step 2.

5. Reinstall wrapper, and resume operation.

6 - 8. TROUBLESHOOTING CHART

WARNINGE ELECTRIC SHOCK can kill.

Do not touch live electrical parts.
Shut down wire feeder and welding power source(s) and disconnect input power employing "lockout/tagging procedures" before inspecting or servicing.

Lockout/tagging procedures consist of padlocking line disconnect switch in open position, removing fuses from fuse box, or shutting off and red-tagging circuit breaker or other disconnecting device.

MOVING PARTS can cause serious injury.

Keep clear of pinch points.
HOT SURFACES can cause severe burns.
Allow cooling period before servicing.

Troubleshooting to be performed only by qualified persons.

It is assumed that the unit was properly installed according to Section 3 of this manual, the operator is familiar with the function of controls, the wire feeder was working properly, and that the trouble is not related to the welding process. The following chart is designed to diagnose and provide remedies for some of the troubles that may develop in this wire feeder.

Use this chart in conjunction with the circuit diagram while performing troubleshooting procedures. If the trouble is not remedied after performing these procedures, the nearest Factory Authorized Service Station should be contacted. In all cases of equipment malfunction, the manufacturer's recommendations should be strictly followed.

TROUBLE	PROBABLE CAUSE	REMEDY
Pressing aun trigger will not	POWER switch S1.	Place S1 in the ON position.
energize wire feeder. Elec- trode wire is not energized, and shielding gas does not flow.		Check S1 for continuity, and replace S1 if necessary.
	115 volts ac/contactor con- trol plug PLG7 is not secure in receptacle RC7 on con- trol box, or plug PLG8 is not secure in 115 volts ac receptacle on welding power source.	Secure PLG7 in receptacle RC7, or secure PLG8 in receptacle on power source (see Section 3-15).

Page 42

Pressing gun trigger will not energize wire feeder. Elec- trode wire is not energized, and shielding gas does not flow. Plug(s) from gun trigger publics) Secure PLG14, PLG15, PLG2, and PLG13 (see Sections 3-10 and 3-11). Gun trigger or publics) PLG2 and RC13. Secure in TRIGGER recep- tacle(s) RC2 and RC13. Secure in TRIGGER recep- tacle(s) RC2 and RC13. Gun trigger or gun trigger cord. Circuit breaker CB1. Reset CB1 according to Section 6-3. Fuse F1. Check and replace F1 according to Section 6-4. Relay CR1 or CR5. Check and replace necessary relays. Welding power source. Secure PLG3 in receptacle. power source Owner's Manual. PLG3 is not secure in con- tactor receptacle. on welding power source. Welding power source. Secure PLG3 in receptacle. Welding power source. Secure PLG3 in receptacle. Welding power source. Secure PLG3 in receptacle. Welding power source. Secure PLG3 in receptacle. Welding power source. Secure PLG3 in receptacle. Welding power source. See TROUBLESHOOTING section in welding power source Owner's Manual. Wire feeds erratically. Obstruction in gun contact tube or liner. Clear obstruction in gun contact tube or gun liner tsee gun Owner's Manual. Incorrect size	TROUBLE	PROBABLE CAUSE	REMEDY
Gun trigger or gun trigger cord. Check trigger and cord for continuity, and replace if necessary. Circuit breaker CB1. Reset CB1 according to Section 6-3. Fuse F1. Check and replace F1 according to Section 6-4. Relay CR1 or CR5. Check and replace necessary relays. Wisding power source. See TROUBLESHOOTING section in welding power source Owner's Manual. Wire feeds, shielding gas not energized. Contactor control plug PLG3 is not secure in con- tactor receptacle on welding power source. See TROUBLESHOOTING section in welding power source Owner's Manual. Wire feeds erratically. Obstruction in gun contact tube or liner. Clear obstruction in gun contact tube or gun liner (see gun Owner's Manual). Wire feeds erratically. Obstruction in gun contact tube or liner. Change to proper size drive roll pressure according to Section 3-17. Incorrect pressure on drive rolls. Adjust drive roll pressure according to Section 3-17. Section 3-8). Worn drive roll. Replace drive roll (see Section 3-8). Dirt in drive roll, or incorrect hub tension. Chean drive roll as instructed in Section 6-2; check hub tension according to Section 3-16. Motor runs slowly. Excessive motor load or binding drive gear. Reduce load, readjust drive gear according to 3-8, or inspect drive shaft according to Section 6-7. Motor is completely in- ope	Pressing gun trigger will not energize wire feeder. Elec- trode wire is not energized, and shielding gas does not flow.	Plug(s) from gun trigger control cable(s) is not secure in plug(s) PLG14 and PLG15, or plug(s) PLG2 and PLG13 is not secure in TRIGGER recep- tacle(s) RC2 and RC13.	Secure PLG14, PLG15, PLG2, and PLG13 (see Sections 3-10 and 3-11).
Circuit breaker CB1. Reset CB1 according to Section 6-3. Fuse F1. Check and replace F1 according to Section 6-4. Relay CR1 or CR5. Check and replace necessary relays. Welding power source. See TROUBLESHOOTING section in welding power source Owner's Manual. Wire feeds, shielding gas forus power source. Secure PLG3 in receptacle. PLG3 is not secure in contactor receptacle on welding power source. Secure PLG3 in receptacle. Wire feeds erratically. Welding power source. See TROUBLESHOOTING section in welding power source. Wire feeds erratically. Obstruction in gun contact tube or gun liner tube or liner. See gun Owner's Manual. Wire feeds erratically. Obstruction in gun contact tube or gun liner tube or liner. Adjust drive roll pressure according to Section 3-17. Incorrect pressure on drive roll. Replace drive roll (see Section 3-8). Out match wire). Worn drive roll, or incorrect hub tension. Replace drive roll (see Section 3-8). Section 6-2; check hub tension according to Section 6-3. Motor runs slowly. Excessive motor load or binding drive gaar. Replace circuit board according to Section 6-3. Motor is completely inoperative, or runs at full speed. Circuit board. Circuit board.		Gun trigger or gun trigger cord.	Check trigger and cord for continuity, and replace if necessary.
Fuse F1. Check and replace F1 according to Section 6-4. Relay CR1 or CR5. Check and replace necessary relays. Welding power source. See TROUBLESHOOTING section in welding power source Owner's Manual. Wire feeds, shielding gas flows, but electrode wire is not energized. Contactor control plug power source. Welding power source. Secure PLG3 in receptacle. Wire feeds erratically. Welding power source. See TROUBLESHOOTING section in welding power source. Wire feeds erratically. Obstruction in gun contact tube or gun liner (see gun Owner's Manual). Clear obstruction in gun contact tube or gun liner (see gun Owner's Manual). Incorrect pressure on drive rolls incorrect size of drive roll (see Section 3-8). Incorrect size of drive roll (see Section 3-8). Worn drive roll. Dirt in drive roll, or incorrect hub tension, cording to Section 6-2; check hub tension according to Section 6-2; check hub tension according to Section 6-3. Motor runs slowly. Excessive motor load or binding drive gear. Replace drive roll see section 6-6. Low line voltage. Correct low line voltage. Correct low line voltage.		Circuit breaker CB1.	Reset CB1 according to Section 6-3.
Relay CR1 or CR5. Check and replace necessary relays. Welding power source. See TROUBLESHOOTING section in welding power source Owner's Manual. Wire feeds, shielding gas flows, but electrode wire is not secure in contactor receptacle on welding power source. Secure PLG3 in receptacle. Welding power source. Welding power source. See TROUBLESHOOTING section in welding power source Owner's Manual. Wire feeds erratically. Welding power source. See TROUBLESHOOTING section in welding power source Owner's Manual. Wire feeds erratically. Obstruction in gun contact tube or gun liner. tube or liner. Clear obstruction in gun contact tube or gun liner is eg un Owner's Manual). Incorrect pressure on drive rolls. Adjust drive roll pressure according to Section 3-8). Incorrect size of drive roll Change to proper size drive roll (see Section 3-8). Worn drive roll. Replace drive roll (see Section 3-8). Dirt in drive roll, or incorrect hub tension according to Section 6-2; check hub tension according to Section 6-2; check hub tension according to Section 6-6. Motor runs slowly. Excessive motor load or binding drive gear. Reduce load, readjust drive gear according to 3-8, or inspect drive shaft according to Section 6-6. Motor is completely in-operative, or runs at full speed. Circuit board. Replace circuit board according to Section 6-7.		Fuse F1.	Check and replace F1 according to Section 6-4.
Welding power source. See TROUBLESHOOTING section in welding power source Owner's Manual. Wire feeds, shielding gas flows, but electrode wire is not energized. Contactor control plug PLG3 is not secure in con- tactor receptacle on welding power source. Secure PLG3 in receptacle. Welding power source. Welding power source. See TROUBLESHOOTING section in welding power source Owner's Manual. Wire feeds erratically. Obstruction in gun contact tube or liner. See TROUBLESHOOTING section in welding power source Owner's Manual. Wire feeds erratically. Obstruction in gun contact tube or liner. Clear obstruction in gun contact tube or gun liner (see gun Owner's Manual). Incorrect pressure on drive rolls. Adjust drive roll pressure according to Section 3-17. Incorrect size of drive roll (does not match wire). Change to proper size drive roll (see Section 3-8). Worn drive roll, or incorrect hub tension. Replace drive roll (see Section 3-8). Motor runs slowly. Excessive motor load or binding drive gear. Reduce load, readjust drive gear according to 3-8, or inspect drive shaft according to Section 6-6. Motor is completely in- operative, or runs at full speed. Circuit board. Replace circuit board according to Section 6-7.		Relay CR1 or CR5.	Check and replace necessary relays.
Wire feeds, shielding gas flows, but electrode wire is not energized. Contactor control plug PLG3 is not secure in con- tactor receptacle on welding power source. Secure PLG3 in receptacle. Welding power source. Welding power source. See TROUBLESHOOTING section in welding power source Owner's Manual. Wire feeds erratically. Obstruction in gun contact tube or liner. Clear obstruction in gun contact tube or gun liner (see gun Owner's Manual). Incorrect pressure on drive rolls. Adjust drive roll pressure according to Section 3-17. Incorrect size of drive roll (does not match wire). Change to proper size drive roll (see Section 3-8). Worn drive roll. Replace drive roll sinstructed in Section 6-2; check hub tension. Motor runs slowly. Excessive motor load or binding drive gear. Reduce load, readjust drive gear according to 3-8, or inspect drive shaft according to Section 6-6. Motor is completely in- operative, or runs at full speed. Circuit board. Replace circuit board according to Section 6-7.		Welding power source.	See TROUBLESHOOTING section in welding power source Owner's Manual.
Welding power source. See TROUBLESHOOTING section in weiding power source Owner's Manual. Wire feeds erratically. Obstruction in gun contact tube or liner. Clear obstruction in gun contact tube or gun liner (see gun Owner's Manual). Incorrect pressure on drive rolls. Adjust drive roll pressure according to Section 3-17. Incorrect size of drive roll (does not match wire). Change to proper size drive roll (see Section 3-8). Worn drive roll. Replace drive roll (see Section 3-8). Dirt in drive roll, or incorrect hub tension. Clean drive roll as instructed in Section 6-2; check hub tension according to Section 3-16. Motor runs slowly. Excessive motor load or binding drive gear. Reduce load, readjust drive gear according to 3-8, or inspect drive shaft according to Section 6-6. Low line voltage. Correct low line voltage. Correct low line voltage. Motor is completely in- operative, or runs at full speed. Circuit board. Replace circuit board according to Section 6-7.	Wire feeds, shielding gas flows, but electrode wire is not energized.	Contactor control plug PLG3 is not secure in con- tactor receptacle on welding power source.	Secure PLG3 in receptacle.
Wire feeds erratically. Obstruction in gun contact tube or liner. Clear obstruction in gun contact (see gun Owner's Manual). Incorrect pressure on drive rolls. Adjust drive roll pressure according to Section 3-17. Incorrect size of drive roll (does not match wire). Change to proper size drive roll (see Section 3-8). Worn drive roll. Replace drive roll (see Section 3-8). Dirt in drive roll, or incorrect hub tension. Clean drive roll as instructed in Section 6-2; check hub tension according to Section 3-16. Motor runs slowly. Excessive motor load or binding drive gear. Reduce load, readjust drive gear according to 3-8, or inspect drive shaft according to Section 6-6. Motor is completely in- operative, or runs at full speed. Circuit board. Replace circuit board according to Section 6-7.		Welding power source.	See TROUBLESHOOTING section in welding power source Owner's Manual.
Incorrect pressure on drive rolls. Adjust drive roll pressure according to Section 3-17. Incorrect size of drive roll (does not match wire). Change to proper size drive roll (see Section 3-8). Worn drive roll. Replace drive roll (see Section 3-8). Dirt in drive roll, or incorrect hub tension. Clean drive roll as instructed in Section 6-2; check hub tension according to Section 3-16. Motor runs slowly. Excessive motor load or binding drive gear. Reduce load, readjust drive gear according to 3-8, or inspect drive shaft according to Section 6-6. Low line voltage. Correct low line voltage. Correct low line voltage. Motor is completely inoperative, or runs at full speed. Circuit board. Replace circuit board according to Section 6-7.	Wire feeds erratically.	Obstruction in gun contact tube or liner.	Clear obstruction in gun contact tube or gun liner (see gun Owner's Manual).
Incorrect size of drive roll (does not match wire).Change to proper size drive roll (see Section 3-8).Worn drive roll.Replace drive roll (see Section 3-8).Dirt in drive roll, or incorrect hub tension.Clean drive roll as instructed in Section 6-2; check hub tension according to Section 3-16.Motor runs slowly.Excessive motor load or binding drive gear.Reduce load, readjust drive gear according to 3-8, or inspect drive shaft according to Section 6-6.Motor is completely in- operative, or runs at full speed.Circuit board.Replace circuit board according to Section 6-7.		Incorrect pressure on drive rolls.	Adjust drive roll pressure according to Section 3-17.
Worn drive roll. Replace drive roll (see Section 3-8). Dirt in drive roll, or incorrect hub tension. Clean drive roll as instructed in Section 6-2; check hub tension according to Section 3-16. Motor runs slowly. Excessive motor load or binding drive gear. Reduce load, readjust drive gear according to 3-8, or inspect drive shaft according to Section 6-6. Low line voltage. Correct low line voltage. Correct low line voltage. Motor is completely in-operative, or runs at full speed. Circuit board. Replace circuit board according to Section 6-7.		Incorrect size of drive roll (does not match wire).	Change to proper size drive roll (see Section 3-8).
Dirt in drive roll, or incorrect hub tension.Clean drive roll as instructed in Section 6-2; check hub tension according to Section 3-16.Motor runs slowly.Excessive motor load or binding drive gear.Reduce load, readjust drive gear according to 3-8, or inspect drive shaft according to Section 6-6.Motor is completely in- operative, or runs at full speed.Circuit board.Replace circuit board according to Section 6-7.		Worn drive roll.	Replace drive roll (see Section 3-8).
Motor runs slowly. Excessive motor load or binding drive gear. Reduce load, readjust drive gear according to 3-8, or inspect drive shaft according to Section 6-6. Low line voltage. Correct low line voltage. Correct low line voltage. Motor is completely in-operative, or runs at full speed. Circuit board. Replace circuit board according to Section 6-7.		Dirt in drive roll, or incorrect hub tension.	Clean drive roll as instructed in Section 6-2; check hub tension according to Section 3-16.
Low line voltage. Correct low line voltage. Motor is completely in- operative, or runs at full speed. Circuit board. Replace circuit board according to Section 6-7.	Motor runs slowly.	Excessive motor load or binding drive gear.	Reduce load, readjust drive gear according to 3-8, or inspect drive shaft according to Section 6-6.
Motor is completely in- Circuit board. Replace circuit board according to Section 6-7. operative, or runs at full speed.		Low line voltage.	Correct low line voltage.
	Motor is completely in- operative, or runs at full speed.	Circuit board.	Replace circuit board according to Section 6-7.

Page 43

Figure 6 - 4. Circuit Diagram

Page 44

Figure 6 - 5. Circuit Diagram For Optional Burnback Circuit Board

Page 45

Sept. 1987 FORM: OM-1517D

Effective With Serial No. JG071242

PARTS LIST

Page 46

Page 47

					Quantity
Itana	Die	Part			Mo	del
No.	Mkgs.	ia. Part kgs. No.		Description	12	16
Figur	e A		Main Assembly


1		099 522	CABLE, control - interconnecting (consisting of)	1	1
2	PLG3	039 635	. CONNECTOR BODY, twistlock 2P2W 20 amp 250 volts	1	1
3	PLG8	039 687	. CAP, twistlock - grounded 2P3W 15 amp 277 volts	1	1
4		604 571	. CABLE, No. 18 4/c (order by ft)	13ft	13ft
5		079 531	. CLAMP, cable 29/64	1	1
6	PLG7	048 284	. HOUSING PLUG & SOCKETS (consisting of)	1	1
		079 534	TERMINAL, female	4	4
7		049 455	. CABLE, No. 18 2/c (order by ft)	2 ft	2 ft
8		080 418	HOSE ASSEMBLY, gas (consisting of)	1	1
9		056 851	. FITTING, hose - barbed nipple 3/16 TBG	3	3
10		010 606	. FITTING, hose - nut 5/8-18 RH	3	3
11		056 108	. FITTING, hose - ferrule 0.425 ID x 23/32	6	6
12		604 550	. HOSE, No. 1 x 3/16 ID (order by ft)	11ft	11ft
13		073 433	. FITTING, barbed - male 3/16 TBG x 1/4 NPT	2	2
14		044 858	. FITTING, pipe - Y short 1/8 NPT x 1/4 NPT	1	1
15		073 432	. FITTING, barbed - male 3/16 TBG x 1/8 NPT	1	1
16		051 297	. ADAPTER	1	1
17		047 684	CABLE, trigger - left (consisting of)	1
17		047 685	CABLE, trigger - left (consisting of)		1
18		049 012	CABLE, trigger - right (consisting of)	1
18		048 618	CABLE, trigger - right (consisting of)		1
19		605 156	. CABLE, No. 18 4/c (order by ft)	16 ft	20 ft
20		079 531	. CLAMP, cable	2	2
21	PLG2.13	079 878	HOUSING PLUG & PINS (consisting of)	1	1
-	,	079 535	TERMINAL, male	4	4
22	PLG14.15	080 328	. RECEPTACLE W/SOCKETS, free - hanging (consisting of)	1	1
23		079 534	TERMINAL, female	2	2
24		079 202	HOSE, gas-right (consisting of)	1
24		079 204	HOSE, gas-right (consisting of)		1
25		003 160	HOSE, gas-left (consisting of)	1
25		003 159	HOSE, gas-left (consisting of)		1
26		604 550	. HOSE, No. 1 x 3/16 ID (order by ft)	17ft	21ft
27		056 108	. FITTING, hose - ferrule 0.425 ID x 23/32	2	2
28		010 606	. FITTING, hose - nut 5/8-16	1	1
29		056 851	, FITTING, hose - barbed nipple 3/16 TBG	1	1
30		072 095	CONTROL BOX (Fig C Pg 6)	1	1
31		072 103	CABLE, motor (consisting of)	1
31		072 102	CABLE, motor (consisting of)	_	1
32		600 769	. TERMINAL, ring tongue No. 10 stud	3	3
33	PLG1(M)	048 306	, RECEPTACLE & PINS (consisting of)	1	1
		079 535	TERMINAL, male	6	6
34		079 706	. CLAMP, cable	1	1
35		604 825	CABLE, No. 18 3/c (order by ft)	16ft	20ft
36		080 415	CABLE, weld-left (consisting of)	1
36		080 940	CABLE, weld-left (consisting of)		1
37		078 992	CABLE, weld-right (consisting of)	1
37		078 993	CABLE, weld-right (consisting of)		1
38		077 455	, TERMINAL, ring tongue 1/2 No. 3/0 wire	1	1
39		600 323	. CABLE, weld - copper No. 3/0 (order by ft)	26ft	30ft
40		600 742	. TERMINAL, ring tongue 3/8 stud No. 3/0 wire	1	1

Page 48

				Qua	ntity
ltem	Dia.	)ia Part			del
No.	Mkgs.	No.	Description	12	16
Figure	A		Main Assembly (Cont'd)
		079 628	BRACKET, spring-retaining	1
41		080 947	BRACKET, spring- retaining		1
42		Figure D	BOOM (Pg 10)	1	1
43		†079 591	BASE, 4 ft or	1
43		†079 214	BASE, 6 ft	1
43		†078 264	BASE, 4 ft or		1
43		t079 216	BASE, 6 ft		1
44		1075 390	POST, support - boom 4 ft (consisting of) or	1
44		t079 215	POST, support - boom 6 ft (consisting of)	1
44		1075 078	POST, support - boom 4 ft (consisting of) or		1
44		t079 217	POST, support - boom 6 ft (consisting of)		1
45		080 157	. FITTING, grease 1/8 NPT	1	1
46		080 408	GEAR, spur - steel 33 tooth 1/2 bore keyed	1	1
47		080 412	GUARD, motor - gear	1	1
48		080 419	SPACER, 1 OD x 17/32 ID x 1/4 thick	1	1
49		080 416	INSULATOR housing	1	1
50		Figure B	WIRE DRIVE & GEARS (Pa 4) (consisting of)	2	2
51		079 633	FITTING hose - barbed ninnle 3/16 TBG	1	1
52		072 010	BUSHING 0.316 ID x 7/16 x 13/16 x 3/16	4	4
52		080 409	SHAFT drive-clutch	2	2
50		080 403	GIIARD drive- gear	1	1
55		080 404	GEAR sour - drive	1	1
50		010 404	MASHER flat - SAF 2/8	4	4
50		602 212		4	4
57 E0		601 965	CCPEW con boy bd 2/9 16 y 1	2	2
50		601 900		2	2
59		001 072		1	1
0U 61		015 710		1	1
01	1.4	010713	MOTOR general /9 hp 115 yelts do 2000 rpm (consisting of)	1	1
02	IVI	000 002		2	2
		080 283		2	2
		100 202		2	2
00		080 281		1	1
63		800 000		1	1
64		TU46 174		1	1
65	PLG9	0/9 878	, HOUSING PLUG & PINS (consisting of)	I A	I A
		079 535		4	4
66		079 531	. ULAMP, cable	1	10.5
67		049 455	. CABLE, No. 18 2/c (order by ft)	υπ
68	PLG11	039 635	. CONNECTOR BODY, twistlock 2P2W 20 amp 250 volts	1	I

*Recommended Spare Parts. †Parts For Optional Equipment. BE SURE TO PROVIDE MODEL AND SERIAL NUMBER WHEN ORDERING REPLACEMENT PARTS.

Page 49

ltem No.

Figure B

Wire Drive & Gears (Fig A Pg 3 Item 50)


1	082 036	GUIDE, inlet wire	1
2	082 050	LINER, monocoil inlet wire	1
3	604 612	SCREW, set-socket hd 8-32 x 1/8	1
4	045 233	GUIDE, anti wear	1
5	081 801	WIRE DRIVE (consisting of)	1
6	085 243	. KNOB, adjust tension	1
7	010 231	. SPRING, compression	1
8	085 244	. WASHER, cupped 21/64 ID x 13/16	1
9	085 242	. FASTENER, pinned	1
10	010 224	. PIN, spring-compression 3/16 x 1	1
11	601 925	. SCREW, cap-hex hd 1/4-20 x 1/2	1
12	604 741	. PIN, cotter-hair 0.042 x 15/16	2
13	079 669	. LEVER, mounting-pressure gear	1
14	079 634	. PIN, hinge	1
15	080 413	. RETAINER, bearing	1
16	079 772	, KNOB
17	604 538	. WASHER, flat-SAE 5/16	As Req'd.
18	080 403	. HOUSING, adapter-gun/feeder	1
19	028 342	. BEARING, ball	1
20	053 842	GEAR, spur-insulated w/bearing	1
21	605 518	SCREW, cap-hex hd 1/4-20 x 1-1/4	1
22	079 626	SCREW, fillister hd 10-32 x 7/8	6
23	010 193	TUBING, 3/8 OD x 18 ga wall x 1/4	1
24	048 336	COVER, stop	1
25	602 241	WASHER, flat-SAE 1/4	1
26	000 418	SCREW, cap-hex hd 1/2-20 x 1/2 self-locking	1
27	039 664	GEAR, spur	1
	092 865	KEY, .122 x .122 x 3/4	2
28	079 625	WASHER, spring - 5/16 shakeproof	2
29	080 410	GUARD, drive roll	1

BE SURE TO PROVIDE MODEL AND SERIAL NUMBER WHEN ORDERING REPLACEMENT PARTS.

Page 50

Figure C - Control Box

Page 51

ltem	Dia.	Part	Description	Quantity
No.	Mkgs.	NO

Figure C

072 095 Control Box (Fig A Pg 2 Item 30)


1		+047 101	WRAPPER	1
•		070 634	LABEL, warning electric shock can kill	1
2	S2.4	011 043	SWITCH, toggle DPDT mc 6 amp 125 volts	2
3	PB1,2	011 232	SWITCH, push button SPDT	2
4	• -	080 153	BRACKET, mtg-relay	1
5		081 148	SOCKET, relay	4
6	CR1.2.3.5	080 388	RELAY, enclosed 24 volts ac 3PDT	4
7	SN1.2	110 158	SNUBBER	2
8		601 219	LINK, jumper	3
9	1T	038 782	BLOCK, terminal 20 amp 10 pole	1
10		083 133	BRACKET, mtg-components
11	RC7	048 283	RECEPTACLE W/PINS (consisting of)
		079 535	. TERMINAL, male	4
12	RC4,10	056 266	CONNECTOR, female 6 contact 7.5 amp	2
13	·	604 311	GROMMET, rubber 1/4 ID x 3/8 mtg hole	1
14		079 683	HEAT SINK, resistor	e
15		010 193	TUBING, 3/8 OD x 18 ga wall x 1/4	0
16		010 199	TUBING, 0.275 ID x 0.048 wall x 1	2
17		030 949	HEAT SINK, rectifier	1
18		056 170	SHIELD, rectifier	1
19	R2	030 941	RESISTOR, WW fixed 100 watt 5 ohm.	1
20	PLG1(F)	048 380	HOUSING PLUG & SOCKETS (consisting of)	I e
		079 534	. TERMINAL, female	0
21		079 706	CLAMP, cable	A 44
22		007 826	CORD, No. 18 3/c (order by ft)	4 11
23		010 476	BUSHING, strain relief 5/8 x 0.570 hole	1
24	CR4	034 841	RELAY, 24 volts ac DPDT	1
25	SR1	035 914	RECTIFIER, integrated 30 amp 400 volts	3
26	RC2,9,13	048 282	RECEPTACLE W/SUCKETS (consisting of)	4
		079 534		1
27		047 123	STAND-UFF, 4-40 X 2-5/8	2
		048 144		1
28		057 314	CIRCUIT CARD (Fig C1 Pg /)	1
29		038 784	STRIP, terminal 1 pole	1
30	RC5	039 756	TERMINAL, header 10 pin	2
- 31		009 335	STAND-OFF, 4-40 x 5/8 x 1/4 nex	1
32	R14	030 940	RESISTOR, carbon 0.5 watt 2N onm	2
33	PLG4,10	056 265		4
34		010 296	FILLING, hose - male 1/4 NPT x 5/6-16 htt	1
35	GS1,2	035 601	VALVE, 115 Volts ac 2 way 1/4 IPS 1/6 Unite	2
36		0/9 5/3		1
37		046 754		2
38		602 934	PLITING, pipe - coupling 174 NPT	1
39		006 426	CLAMP, capacitor 2 include	1
40	C1	031 692	DECICTOR MIM fixed 25 wett 2K obm	1
41	R13	0/9 49/	RESISTOR, WWW liked 25 watt 20 ohm	1
42	H1	030 051		1
43		030 135	DOTENTIOMETER carbon 1 turn 2 watt 15K ohm	2
44	H5,16	030 943	CIDCUIT DEAKER 1 note 1 5 amn 250 volts	1
45	CB1	011 991	CINCUT DREAKEN, I POIE 1.5 amp 250 Volto	3
46	S1,6,7		DACKET mtg. terminal strin	1
47		05/ 050	DECISTOR option 0 5 watt 2 2K ohm	1
48	H17		DESISTOR carbon 0 5 watt 18K ohm	1
49	H15	030 854		1
50	l	038 /85	) סוחור, נפוווווומוס אטופיייייייייייייייייייייייייייייייייייי

Page 52


No.	Mkgs.	No.	Description	Quantity
ltem	Dia.	Part

Figure C	072 095	Control	Box (Fig	AP	a 2	Item	30) (C	ont'd)
								····


51	D6	026 202	DIODE, 1 amp 400 volts SP	1
52	RC6,16	039 825	RECEPTACLE, 6 socket MS-3102A-14S-6S	2
53		083 135	CASE SECTION, front/bottom/back	1
54			NAMEPLATE (order by model & serial number)	1
55		097 922	KNOB, pointer	2
56		046 432	HOLDER, fuse	1
57	F1	*073 426	FUSE, miniature - glass slo blo 5 amp	1

*Recommended Spare Parts. BE SURE TO PROVIDE MODEL AND SERIAL NUMBER WHEN ORDERING REPLACEMENT PARTS.

Mkas	No	Description	Quantity
ININGS:		Description	Cudantity

Figure C1 057 314 Circuit Card (Fig C Pg 6 Item 28)

-














1
1
1
1
1
1

COMPONENTS TO BE REPLACED BY QUALIFIED PERSONNEL ONLY

Figure C1 - Circuit Card

TA-057 314

BE SURE TO PROVIDE MODEL AND SERIAL NUMBER WHEN ORDERING REPLACEMENT PARTS.

OM-1517 Page 7

Page 53

IMPORTANT : Base selection of drive rolls upon the following recommended usages: 1. V-Groove rolls for hard wire.

2. U-Groove rolls for soft and soft shelled cored wires.

3. U-Cog rolls for extremely soft shelled wires (usually hard surfacing types).

4. Split V-Knurled rolls for hard shelled cored wires.

5. Drive roll types may be mixed to suit particular requirements (example: V-knurled roll in combination with U-groove).

Wire Diameter & Type			Kit No *	Roll Drive		Iniet Wire
Fraction	Decimal	Motric	NIL NO.	Part No	Type	Guide
		CRARA	007 121	097 120		056 192
.0237.025	.0237.025		070 504	067 130	V groove	056 192
.030	.030	.811111	079 594	053 095	V-giouve	056 102
.035″	.035	.9MM	079 595	053 700	v-groove	050 192
.045″	.045	1.2MM	079 596	053 697	V-groove	050 193
.052''	.052	1.3MM	079 597	053 698	V-groove	056 193
1/16"	.062	1.6MM	079 598	053 699	V-groove	056_195
.035″	.035	.9MM	044 749	072 000	U-groove	056 192
.045″	.045	1.2MM	079 599	053 701	U-groove	056 193
.052''	.052	1.3MM	079 600	053 702	U-groove	056 193
1/16″	.062	1.6MM	079 601	053 706	U-groove	056 195
5/64"	.079	2.0MM	079 602	053 704	U-groove	056 195
3/32''	.094	2.4MM	079 603	053 703	U-groove	056 196
7/64"	.110	2.8MM	079 604	053 705	U-groove	056 196
1/8″	.126	3.2MM	079 605	053 707	U-groove	056 197
.035"	.035	.9MM	079 606	079 726	V-knurled	056 192
.045"	.045	1.2MM	079 607	079 728	V-knurled	056 193
.052''	.052	1.3MM	079 608	079 727	V-knurled	056 193
1/16"	.062	1.6MM	079 609	056 771	V-knurled	056 195
5/64"	.079	2.0MM	079 610	056 773	V-knurled	056 195
3/32"	.094	2.4MM	079 611	056 774	V-knurled	056 196
7/64"	.110	2.8MM	079 612	056 775	V-knurled	056 196
1/8"	.126	3.2MM	079 613	056 776	V-knurled	056 197
.045"	.045	1.2MM	083 318	083 489	U-cogged	056 193
.052"	.052	1.3MM	083 317	083 490	U-cogged	056 193
1/16"	.062	1.6MM	079 614	053 708	U-cogged	056 195
5/64"	.079	2.0MM	079 615	053 710	U-cogged	056 195
3/32"	.094	2.4MM	079 616	053 709	U-cogged	056 196
7/64''	.110	2.8MM	079 617	053 711	U-cogged	056 196
1/8''	.126	3.2MM	079 618	053 712	U-cogged	056 197

Drive Roll & Wire Guide Kits

*When ordering replacement parts all kits listed with the exception of the V-KNURLED kits are one piece drive rolls. Two drive rolls are required for the one piece drive kits and four drive rolls for the split V-knurled kits.

Page 54

Figure D - Boom

Page 55

ltem	Part		Мо	del
No.	No.	Description	12	16


1	010 313	PIN, cotter - hair 0.072 x 1.437 long	4	4
2	079 622	BUSHING, 0.622 ID x 0.075 OD x 0.501 thick	4	4
3	079 621	PULLEY, V single groove	2	2
4	079 632	BOLT, U 1-5/8 x 1-1/8 x 1/4	8	10
5	079 667	PIPE, 1/2 x 133-3/4	2
5	080 812	PIPE, 1/2 x 181-3/4		2
6	079 665	GUIDE, wire	2
6	080 811	GUIDE, wire		2
7	079 664	GUIDE, inlet	2	2
8	007 280	PIN, clevis 5/8-18 x 1-7/8	1
8	073 742	PIN, clevis 3/4 OD x 2.156		1
9	045 3 9 1	TUBING, 3/8 ID x 0.093 wall x 8	2	2
10	605 538	CABLE TIE, 0-4-1/2	2	2
11	045 390	LINER, monocoil 3/32 - 1/8 wire x 9x 13 inches	2	2
12	007 279	CLEVIS	1
12	073 741	CLEVIS		1
13	601 883	NUT, hex - jam 5/8-18	2
13	079 029	NUT, hex - full 3/4-16		1
13	605 884	NUT hex - half 3/4-16		1
14	007 995	SHAFT boom - counter balance	1
14	075 462	SHAFT boom - counter balance		1
15	Figure D1	SUPPORT hub & reei (Pa 11)	1	1
16	079 020	NUT hex - elastic stop 3/4-16	1	1
17	602 250	WASHER flat - SAF 3/4	2	2
19	602 249	WASHER flat - SAE 5/8	1
18	075 102	WASHER, shield 3 inch square		1
10	073 663	BEABING hall	1
10	073 005	BEARING, ball		1
20	024 000	NIT 5/8-18 x 1-1/4	1
20	075 100	NUT 3/4-16 x 1-1/4		1
20	602 210	MASHER lock - external tooth 5/8	1
21	002 213	WASHER lock external tooth 3/4		1
21	079 030	SPRING compression 2 OD x 1 ID x 12	3
22	000 443	SPRING, compression 2 0D x 1 D x 12	-	1
22	000 723	SPACEP apring been	1
23	075 421		1
24	075 403	BASE avival boom	1
25	+ 072 091	BASE swivel boom	•	1
25	+072 083	DAJE, SWIVEL - DUUIII	1	1
26	0UZ 240		1	1
27	047 224		1	1
28	073 000	BULT, nex no 3/4-10 x 2-3/4	1	•
29	082 964			1
29	082 965	BUUNI, Gual 10 ft	1	1
	070 634		1	1
	047 702		1	1
•••	080 656		4	4
30	601 872		Ā	1
31	602 213		2	2
32	079 631	BHAUKEI, nanger - gun	4 1	1
33	079 643	GUARD, motor - protector	1	1
34	082 970	SHAFT, pulley		1

Figure D Boom (

Boom (Fig A Pg 3 Item 43)

+ When ordering a component originally displaying a precautionary label, the label should also be ordered. BE SURE TO PROVIDE MODEL AND SERIAL NUMBER WHEN ORDERING REPLACEMENT PARTS.

Quantity

Page 56

Item No

Figure D1

Support, Hub & Reel (Fig D Pg 10 Item 15)

1	080 393		1
2	010 101	WASHER fiber 5/8 ID v 1.1/2 OD v 1/9	, ,
2
3	058 628	WASHER, brake	4
4	058 428	HUB, spool	2
5	057 971	WASHER, flat - keyed 1-1/2 dia	2
6	010 233	SPRING, compression	2
7	605 941	WASHER, flat - 41/64 ID x 1 OD	2
8	601 884	NUT, hex 5/8-11	2
9	058 427	RING, retaining - spool	2
10	t056 416	REEL, wire (consisting of) (as reg'd)	1
11	604 051	. NUT, wing 1/2-13	4
12	056 312	. FINGER, reel	4
13	056 313	. STUD, 1/2-13 x 7 center drilled	4
14	010 224	. PIN, spring - compression	4
15	601 880	. NUT, hex - jam 1/2-13	4
16	056 314	. REEL	1

Figure D1 - Support, Hub & Reel

†Parts For Optional Equipment.

BE SURE TO PROVIDE MODEL AND SERIAL NUMBER WHEN ORDERING REPLACEMENT PARTS.

Page 57

			Mo	del
Dia. Mkgs.	Part No	Description 1	2	16

Parts For Optional Equipment


	047 945 I	BURNBACK CONTROL, left side (consisting of)	1	1
	046 023	BURNBACK CONTROL, right side (consisting of)	1	1
	112 030 .	. CIRCUIT CARD, timer delay (consisting of)	1	1
A1	009 159	IC, linear 358	1	1
C1	112 233	CAPACITOR, poly film 1.5 uf 250 volts dc	1	1
C2	039 482	CAPACITOR, electrolyte 100 uf 35 volts dc	1	1
C4	091 791	. CAPACITOR, tantalum 15 uf 35 volts		1
CE 6	073 739	CAPACITOR, ceramic 0.1 uf 50 volts dc	2	2
CD1	090 875	RELAY, enclosed 12 volts dc SPDT	1
	111 999	RELAY, enclosed 115 volts ac SPDT	1
	028 293	DIODE. zener 6.2 volts 1 watt	2	2
ט, וט רים	026 202	DIODE, 1 amp 400 volts SP	1	1
01	020 202	TRANSISTOR, NPN 200MA	1	1
	037 200	RESISTOR, carbon 0.5 watt 47 ohm	1	1
	030 035	RESISTOR WW fixed 3.25 watt 100 ohm	1	1
HZ	030 040	RESISTOR carbon film 0.25 watt 330 ohm	1	1
KJ D4	044 034	RESISTOR, carbon film 0.25 watt 100K ohm	1	1
K4	100 422	RESISTOR, carbon film 0.25 watt 2.4K ohm	1	1
H5	100 433	PESISTOR, carbon film 0.25 watt 1K ohm	1	1
R6	072 560		1	1
R7	003 272	DECISTOR, carbon film 0.25 watt 10K ohm	1	1
R8	035 827	RESISTOR, Californian 0.23 water for one control of the control of	1	1
SR1	035 841	TEDMINAL header7 nin	1	1
	048 105	DOTENTIONETER asthon 1 ture 2 watt 10K ohm	1
R23	073 562	POTENTIONETER, carbon 1 turn 2 watt 10K ohm		1
R28	073 562	, POTENTIOMETER, carbon 1 tuil 2 wate for onin	1	1
	048 104	. HOUSING, terminal header / pint	1	1
	097 922	KNOB, pointer	1	1
	048 207	, PLUG, connector-keying	2	2
	097 132	, STAND-OFF, No. 0-32 X 3/8 X 1/4 flex	1
	046 531	WATER CONTROL KIT, one side (consisting of)		1
	046 533	WATER CONTROL KIT, one side (consisting of)	1
	046 532	WATER CONTROL KIT, both sides (consisting of)	-	-
	046 534	WATER CONTROL KIT, both sides (consisting of)	1
WS1	035 601	VALVE, 115 volts ac 2 way 1/4 IPS port 1/8 office	2	2
	010 295	FITTING, hose - elbow male 1/4 NPT x 5/8-18 LT	1
	079 573	. FITTING, pipe - nipple L 1/4 NP1 X0	1
	602 934	FITTING, pipe - coupling 1/4 NP1	1	•
	056 296	. TUBING, plastic No. 4	1
	+ + 079 773	ADAPTER, terminal - water/electrode	1
	+ + 008 657	. FITTING, hose - bushing reduce 5/8-18 LH	1
	000 571	. HOSE, water 10 ft	1
	000 570	. HOSE, water 15 ft (kit for one side)
	000 572	. HOSE, water 19 ft (kit for one side)	1
	080 499	. HOSE, water 12 ft (kit for both sides)
	081 501	. HOSE, water 19 ft (kit for both sides)	1
	000 573	. HOSE, water 25 ft (kit for one side)	1
	000 569	. HOSE, water 29 ft (kit for one side)	1
	080 500	. HOSE, water 25 ft (kit for both sides)	. 1
	081 502	. HOSE, water 29 ft (kit for both sides)	•
			•

+ + When using kit for both sides the quantity is 2 req'd. for these items. BE SURE TO PROVIDE MODEL AND SERIAL NUMBER WHEN ORDERING REPLACEMENT PARTS.

Quantita

Page 58

Page 59

Page 60

Miller SWINGARC SINGLE 12, SWINGARC SINGLE 16 Owners manual

MILLER ELECTRIC MFG. CO.

LIMITED WARRANTY

EFFECTIVE: OCTOBER 1, 1986

After this manual was printed, refinements in equipment design occurred. This sheet lists exceptions to data appearing later in this manual.

AMENDMENT TO SECTION 3 - INSTALLATION

WARNING: ELECTRIC SHOCK can kill; MOVING PARTS can cause injury.

CAUTION: IMPROPER VOLTAGE APPLIED TO WELDING POWER SOURCE CONTACTOR can damage wire feeder and welding power source.

WARNING: ELECTRIC SHOCK can kill; MOVING PARTS can cause injury.

WARNING: ELECTRIC SHOCK can kill.

AMENDMENT TO SECTION 6 - MAINTENANCE & TROUBLESHOOTING

AMENDMENT TO PARTS LIST

TABLE OF CONTENTS

SECTION 1 - SAFETY RULES FOR OPERATION OF ARC WELDING POWER SOURCE

SECTION 2 - INTRODUCTION

SECTION 3 - INSTALLATION

SECTION 4 - OPERATOR CONTROLS

SECTION 5 - SEQUENCE OF OPERATION

SECTION 6 - MAINTENANCE & TROUBLESHOOTING

SECTION 1 - SAFETY RULES FOR OPERATION OF ARC WELDING POWER SOURCE SECTION 1 - RÈGLES DE SÉCURITÉ POUR LE FONCTIONNEMENT DU POSTE DE SOUDAGE À L'ARC

1-2. GENERAL PRECAUTIONS

A. Burn Prevention

1-2. PRÉCAUTIONS GÉNÉRALES

B. Toxic Fume Prevention

B. Prévention des gax toxiques

C. Fire and Explosion Prevention

C. Prévention des incendies et des explosions

D. Compressed Gas Equipment

1. Pressure Regulators

Leaks - if gas leaks externally.

2. Cylinders

D. Gaz comprimé

Fuites - si le gaz fuit extérieurement.

3. Hose

4. Proper Connections

E. User Responsibilities

4. Branchements corrects

F. Leaving Equipment Unattended

G. Rope Staging-Support

A. Burn Protection

1. Protective Clothing

E. Responsabilités de l'usager

F. Appareil laissé sans surveillance

G. Liens et supports temporaires

A. Protection contre les brûlures

B. Toxic Fume Prevention

C. Fire and Explosion Prevention

D. Compressed Gas Equipment

E. Shock Prevention

B. Prévention des gaz toxiques

C. Prévention des incendies et des explosions

D. Gaz comprimé

E. Prévention des décharges électriques

F. Protection For Wearers Of Electronic Life Support Devices (Pacemakers)

SECTION 2 - INTRODUCTION

2-1. GENERAL INFORMATION AND SAFETY

A. General

B. Safety

3 - 1. LOCATION AND ASSEMBLY (Figure 3-1)

A. Location

WARNING : FALLING BOOM can cause serious personal injury and equipment damage.

WARNING: FALLING BOOM can cause serious personal injury and equipment damage.

WARNING: FALLING BOOM can cause serious personal injury and equipment damage.

WARNINGE RELEASE OF SPRING PRESSURE WITHOUT BOOM ATTACHED can cause serious personal injury and equipment damage.

CAUTION : EXCESSIVE FRICTION can damage equipment.

WARNING: FALLING BOOM can cause serious personal injury and equipment damage.

CAUTION : EXCESSIVE FRICTION can damage equipment.

WARNING: FALLING BOOM can cause serious personal injury and equipment damage.

CAUTION EXCESSIVE FRICTION can damage equipment.

3 - 2. INSTALLATION OF WIRE SUPPORT (Figures 3-1 And 3-2)

Figure 3 - 2. Wire Support And Hub Assembly

3 - 3. REINSTALLATION OF HUB ASSEMBLY

3 - 5. INSTALLATION OF SPOOL-TYPE WIRE (Figure 3-2)

CAUTION PRESSURE IN WIRE DRIVE MOTOR GEAR BOX will damage motor.

A. Drive Roll Installation (Figures 3-4 And 3-5)

B. Inlet Wire Guide (Figure 3-4)

3 - 9. WATER CONNECTIONS (Optional)

CAUTION: OVERHEATING of Gas Metal Arc Welding (GMAW) gun can damage gun.

A. Installation Of Water Hoses

B. Electrical Reconnection Of Water Solenoid