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Torches for Automated Applications Process OBT-600 And OBT- 1200 Submerged Arc Welding (SAW) OM-1596 192 709C 201004 Description Torches For Automatic Welding Sys- tems Using The Submerged Arc Weld- ing (SAW) Process Automatic Welding Visit our website at www.MillerWelds.com File: (SAW)

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Page 1: Torches for Automated Applications - MillerWeldsTorches for Automated Applications Process OBT-600 And OBT- 1200 Submerged Arc Welding (SAW) OM-1596 192 709C 2010−04 Description

Torches forAutomated Applications

Process

OBT-600 And OBT- 1200

Submerged Arc Welding(SAW)

OM-1596 192 709C

2010−04

Description

Torches For Automatic Welding Sys-tems Using The Submerged Arc Weld-ing (SAW) Process

Automatic Welding

Visit our website at

www.MillerWelds.com

File: (SAW)

Page 2: Torches for Automated Applications - MillerWeldsTorches for Automated Applications Process OBT-600 And OBT- 1200 Submerged Arc Welding (SAW) OM-1596 192 709C 2010−04 Description

Miller Electric manufactures a full lineof welders and welding related equipment.For information on other quality Millerproducts, contact your local Miller distributor to receive the latest fullline catalog or individual specification sheets. To locate your nearestdistributor or service agency call 1-800-4-A-Miller, or visit us atwww.MillerWelds.com on the web.

Thank you and congratulations on choosing Miller. Now you can getthe job done and get it done right. We know you don’t have time to doit any other way.

That’s why when Niels Miller first started building arc welders in 1929,he made sure his products offered long-lasting value and superiorquality. Like you, his customers couldn’t afford anything less. Millerproducts had to be more than the best they could be. They had to be thebest you could buy.

Today, the people that build and sell Miller products continue thetradition. They’re just as committed to providing equipment and servicethat meets the high standards of quality and value established in 1929.

This Owner’s Manual is designed to help you get the most out of yourMiller products. Please take time to read the Safety precautions. Theywill help you protect yourself against potential hazards on the worksite.

We’ve made installation and operation quickand easy. With Miller you can count on yearsof reliable service with proper maintenance.And if for some reason the unit needs repair,there’s a Troubleshooting section that willhelp you figure out what the problem is. Theparts list will then help you to decide theexact part you may need to fix the problem.Warranty and service information for yourparticular model are also provided.

Miller is the first weldingequipment manufacturer inthe U.S.A. to be registered tothe ISO 9001 Quality SystemStandard.

Working as hard as you do− every power source fromMiller is backed by the mosthassle-free warranty in thebusiness.

From Miller to You

Mil_Thank 2009−09

Page 3: Torches for Automated Applications - MillerWeldsTorches for Automated Applications Process OBT-600 And OBT- 1200 Submerged Arc Welding (SAW) OM-1596 192 709C 2010−04 Description

TABLE OF CONTENTS

SECTION 1 − SAFETY PRECAUTIONS - READ BEFORE USING 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1. Symbol Usage 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2. Arc Welding Hazards 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5. EMF Information 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SECTION 2 − Specifications 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1. Welding Torches 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2. Overall Dimensions 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SECTION 3− INSTALLATION 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1. Installing Torch Into Drive Assembly (OBT-1200 Shown) 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2. Breakaway Torch Protection (OBT-1200 Models Only) 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3. Adding Body Extension (1200 Models Only) 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SECTION 4 − OPERATION 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1. Safety Equipment 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SECTION 5 − MAINTENANCE AND TROUBLESHOOTING 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1. Maintenance Schedule 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2. Troubleshooting Table 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SECTION 6 − PARTS LIST 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Page 4: Torches for Automated Applications - MillerWeldsTorches for Automated Applications Process OBT-600 And OBT- 1200 Submerged Arc Welding (SAW) OM-1596 192 709C 2010−04 Description
Page 5: Torches for Automated Applications - MillerWeldsTorches for Automated Applications Process OBT-600 And OBT- 1200 Submerged Arc Welding (SAW) OM-1596 192 709C 2010−04 Description

OM-1596 Page 1

SECTION 1 −SAFETY PRECAUTIONS FOR GMAWWELDING GUNS − READ BEFORE USING

SR7 (MIG) 2010−03

Protect yourself and others from injury — read and follow these precautions.

1-1. Symbol Usage

DANGER! − Indicates a hazardous situation which, ifnot avoided, will result in death or serious injury. Thepossible hazards are shown in the adjoining symbolsor explained in the text.

Indicates a hazardous situation which, if not avoided,could result in death or serious injury. The possiblehazards are shown in the adjoining symbols or ex-plained in the text.

NOTICE − Indicates statements not related to personal injury.

� Indicates special instructions.

This group of symbols means Warning! Watch Out! ELECTRICSHOCK, MOVING PARTS, and HOT PARTS hazards. Consult sym-bols and related instructions below for necessary actions to avoid thehazards.

1-2. Arc Welding Hazards

The symbols shown below are used throughout this manualto call attention to and identify possible hazards. When yousee the symbol, watch out, and follow the related instructionsto avoid the hazard. The safety information given below isonly a summary of the more complete safety informationfound in the welding power source Owner’s Manual. Readand follow all Safety Standards.

Only qualified persons should install, operate, maintain, andrepair this unit.

During operation, keep everybody, especially children, away.

ELECTRIC SHOCK can kill.

� Always wear dry insulating gloves.� Insulate yourself from work and ground.� Do not touch live electrode or electrical parts.

� Repair or replace worn, damaged, or cracked gun or cable insula-tion.

� Turn off welding power source before changing contact tip or gunparts.

� Keep all covers and handle securely in place.

� Keep your head out of the fumes.� Ventilate area, or use breathing device.� Read Material Safety Data Sheets (MSDSs)

and manufacturer’s instructions for materialused.

FUMES AND GASES can be hazardous.

� Do not weld near flammable material.� Do not weld on closed containers.� Watch for fire; keep extinguisher nearby.

WELDING can cause fire or explosion.

BUILDUP OF GAS can injure or kill.

� Shut off shielding gas supply when not in use.� Always ventilate confined spaces or use ap-

proved air-supplied respirator.

MOVING PARTS can injure.

� Keep away from moving parts.� Keep away from pinch points such as drive

rolls.

� Wear welding helmet with correct shade of fil-ter.

� Wear correct eye and body protection.� Cover exposed skin with spatter-resistant

clothing.

ARC RAYS can burn eyes and skin.

HOT PARTS can burn.

� Allow gun to cool before touching.� Do not touch hot metal.� Protect hot metal from contact by others.

NOISE can damage hearing.

Noise from some processes or equipment candamage hearing.

� Check for noise level limits exceeding thosespecified by OSHA.

� Use approved ear plugs or ear muffs if noise level is high.� Warn others nearby about noise hazard.

WELDING WIRE can injure.

� Keep hands and body away from gun tip whentrigger is pressed.

READ INSTRUCTIONS.

� Read and follow all labels and the Owner’sManual carefully before installing, operating, orservicing unit. Read the safety information atthe beginning of the manual and in eachsection.

� Use only genuine replacement parts from the manufacturer.

� Perform maintenance and service according to the Owner’sManuals, industry standards, and national, state, and localcodes.

Page 6: Torches for Automated Applications - MillerWeldsTorches for Automated Applications Process OBT-600 And OBT- 1200 Submerged Arc Welding (SAW) OM-1596 192 709C 2010−04 Description

OM-1596 Page 2

1-3. Proposition 65 Warnings

Welding or cutting equipment produces fumes or gaseswhich contain chemicals known to the State of California tocause birth defects and, in some cases, cancer. (CaliforniaHealth & Safety Code Section 25249.5 et seq.)

This product contains chemicals, including lead, known tothe state of California to cause cancer, birth defects, or otherreproductive harm. Wash hands after use.

1-4. EMF InformationElectric current flowing through any conductor causes localized electricand magnetic fields (EMF). Welding current creates an EMF fieldaround the welding circuit and welding equipment. EMF fields may inter-fere with some medical implants, e.g. pacemakers. Protective meas-ures for persons wearing medical implants have to be taken. For ex-ample, access restrictions for passers−by or individual risk assessmentfor welders. All welders should use the following procedures in order tominimize exposure to EMF fields from the welding circuit:

1. Keep cables close together by twisting or taping them, or using acable cover.

2. Do not place your body between welding cables. Arrange cablesto one side and away from the operator.

3. Do not coil or drape cables around your body.

4. Keep head and trunk as far away from the equipment in thewelding circuit as possible.

5. Connect work clamp to workpiece as close to the weld aspossible.

6. Do not work next to, sit or lean on the welding power source.

7. Do not weld whilst carrying the welding power source or wirefeeder.

About Implanted Medical Devices:Implanted Medical Device wearers should consult their doctor and thedevice manufacturer before performing or going near arc welding, spotwelding, gouging, plasma arc cutting, or induction heating operations.If cleared by your doctor, then following the above procedures is recom-mended.

Page 7: Torches for Automated Applications - MillerWeldsTorches for Automated Applications Process OBT-600 And OBT- 1200 Submerged Arc Welding (SAW) OM-1596 192 709C 2010−04 Description

OM-1596 Page 3

SECTION 2 − SPECIFICATIONS

2-1. Welding Torches

ModelRating: 100%

Duty Cycle DCEP Wire Diameter CapacityCoolingMethod

Weight

Net

OBT-600 600 AmperesSubmerged Arc

1/16, 5/64, 3/32, 7/64, 1/8, 5/32, 3/16, 7/32 in.(1.6, 2.0, 2.4, 2.8, 3.2, 4.0, 4.8, 5.6 mm) Hard Wire Air 2 lb

(0.91 kg)

OBT-1200 1200 AmperesSubmerged Arc

1/16, 5/64, 3/32, 7/64, 1/8, 5/32, 3/16, 7/32 in.(1.6, 2.0, 2.4, 2.8, 3.2, 4.0, 4.8, 5.6 mm) Hard Wire Air 7 lb

(3.2 kg)

14-3/4 in.(374.7 mm)

17-1/4 in.(438.2 mm)

10-1/4 in.(260.4 mm)

11-1/4 in.(285.8 mm)

SA-802 264-A

OBT-1200 Model OBT-600 Model

2-2. Overall Dimensions

7-1/2 in.(190.5 mm)

Page 8: Torches for Automated Applications - MillerWeldsTorches for Automated Applications Process OBT-600 And OBT- 1200 Submerged Arc Welding (SAW) OM-1596 192 709C 2010−04 Description

OM-1596 Page 4

SECTION 3 − INSTALLATION

� For complete installation into wire drive assembly, see wire drive Owner’s Manual.

3-1. Installing Torch Into Drive Assembly (OBT-1200 Shown)

Ref. 080 847-A

1 Breakaway Device With WireInlet Guide

2 Torch Body

3 Torch Securing Handle

4 Torch End With Inlet Guide

5 Wire Drive Assembly

Turn Off power, loosen handle (3),insert torch end (1) into drive as-sembly, and tighten handle (3).

1

2

345

3-2. Breakaway Torch Protection (OBT-1200 Models Only)

Ref. 049 258-C

� The OBT-1200 torch isequipped with a BreakawayDevice to protect the torch fromdamage if a strong impact oc-curs.

1 Torch Body

2 Breakaway Device

3 Breakaway Device AfterImpact

The Breakaway Device is designedto shear if the torch hits an object.This action prevents damage to thetorch itself. To continue operation,turn off power, retract welding wire,and simply remove old device andreplace with a new one.

1

2

3

Page 9: Torches for Automated Applications - MillerWeldsTorches for Automated Applications Process OBT-600 And OBT- 1200 Submerged Arc Welding (SAW) OM-1596 192 709C 2010−04 Description

OM-1596 Page 5

3-3. Adding Body Extension (1200 Models Only)

! Retract welding wire andturn Off welding powersource, wire feeding sys-tem, and flux supply beforeadding body extension.

1 Body Extension2 Clamp

3 Nozzle Assembly

Loosen clamp and remove nozzleassembly.

4 Nut

5 Contact Tip

6 Tip Extender

7 Liner

Remove nut, contact tip, tip extend-er, and liner.

8 Torch Body

9 Extension Liner

Install extension onto body (exten-sion liner must be cut to length priorto final installation). Reinstall re-moved parts as shown.

10 Completed Job1

2

3

7

6

4

5

8

10

9

088 001-A

Page 10: Torches for Automated Applications - MillerWeldsTorches for Automated Applications Process OBT-600 And OBT- 1200 Submerged Arc Welding (SAW) OM-1596 192 709C 2010−04 Description

OM-1596 Page 6

SECTION 4 − OPERATION

4-1. Safety Equipment

Wear the following while handlingflux or welding:

1 Dry, Insulating Gloves

2 Safety Glasses With SideShields or Goggles

sb3.1 1/94

12

SECTION 5 − MAINTENANCE AND TROUBLESHOOTING

5-1. Maintenance Schedule

! Turn Off all power before maintaining.

Each Spool Of Wire 3 Months

Blow out gun liner. Clean nozzleand check contact tip.

Replace cracked parts.

5-2. Troubleshooting Table

Trouble Remedy

Wire does not feed. Check contact tip. Check for kinks in outlet cable. Check connections at wire drive assembly. Havenearest Factory Authorized Service Agent check automatic equipment and welding power source.

Wire is not energized. Check contact tip. Check connections at wire drive assembly. Have nearest Factory Authorized Ser-vice Agent check automatic equipment and welding power source.

Wire feeds unevenly. Check contact tip. Check for kinks in outlet cable. Blow out gun liner and outlet cable casing.

Page 11: Torches for Automated Applications - MillerWeldsTorches for Automated Applications Process OBT-600 And OBT- 1200 Submerged Arc Welding (SAW) OM-1596 192 709C 2010−04 Description

OM-1596 Page 7

SECTION 6 − PARTS LIST

802 263

� Hardware is common andnot available unless listed.

(For use with existing

(For use with flux hopperwith valve, 25 lb. Connect tohose supplied with hopper.)

flux hoppers.)

Figure 6-1. Complete Assembly Of OBT-600 Torch

DescriptionPartNo.

ItemNo.

Figure 6-1. Complete Assembly Of OBT-600

Quantity

1 192 700 ♦TIP, CONTACT 1/16 in 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 192 701 ♦TIP, CONTACT 5/64 in 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 192 702 ♦TIP, CONTACT 3/32 in 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 192 703 ♦TIP, CONTACT 7/64 in 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 192 704 ♦TIP, CONTACT 1/8 in 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 192 705 ♦TIP, CONTACT 5/32 in 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 192 706 ♦TIP, CONTACT 3/16 in 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 192 707 ♦TIP, CONTACT 7/32 in 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 192 692 TORCH BODY 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 192 694 HOSE, FLUX w/ insulator 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 192 693 CONE ASSY, BODY 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 192 695 FERRULE, locking 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 192 697 NUT, retaining 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 192 696 CONE, flux 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 200 566 ADAPTER, hose 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 193 146 * LINER, wire 1/16 − 1/8 x 8.125 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 193 145 * LINER, wire 5/32 x 8.125 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

10 043 967 ♦EXTENSION, torch body OBT−1 inch 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 043 969 ♦EXTENSION, torch body OBT−2 inch 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 043 973 ♦EXTENSION, torch body OBT−4 inch 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 043 975 ♦EXTENSION, torch body OBT−6 inch 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

♦ Optional*Wire sizes 3/16 and 7/32 do not require a liner .

To maintain the factory original performance of your equipment, use only Manufacturer’s SuggestedReplacement Parts. The Model Number is required when ordering parts from your distributor.

Page 12: Torches for Automated Applications - MillerWeldsTorches for Automated Applications Process OBT-600 And OBT- 1200 Submerged Arc Welding (SAW) OM-1596 192 709C 2010−04 Description

OM-1596 Page 8

802 263-A

� Hardware is common andnot available unless listed.

Figure 6-2. Complete Assembly Of OBT-1200 Torch

Page 13: Torches for Automated Applications - MillerWeldsTorches for Automated Applications Process OBT-600 And OBT- 1200 Submerged Arc Welding (SAW) OM-1596 192 709C 2010−04 Description

OM-1596 Page 9

DescriptionPartNo.

ItemNo.

Figure 6-2. Complete Assembly Of OBT-1200 Torch

Quantity

1 049 740 ♦GUIDE, wire inlet 5/32−1/4 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 081 925 ♦GUIDE, wire inlet 1/16−1/8 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 199 945 GUIDE, wire inlet 5/32−1/4 (for RAD-400 & RAD-780) 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 199 946 GUIDE, wire inlet 1/16−1/8 (for RAD-400 & RAD-780) 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 192 132 INLET GUIDE ADAPTER, W/ breakaway feature 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 192 131 TORCH BODY ASSY 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 192 139 LINER, wire 1/16−1/8 in 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 192 687 LINER, wire 5/32−3/16 in 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 200 754 LINER, wire 7/32 in 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 192 133 EXTENDER, TIP 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 192 141 ♦TIP, CONTACT 1/16 in 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 199 026 ♦TIP, CONTACT 5/64 in 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 192 142 ♦TIP, CONTACT 3/32 in 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 200 771 ♦TIP, CONTACT 7/64 in 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 192 143 ♦TIP, CONTACT 1/8 in 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 192 144 ♦TIP, CONTACT 5/32 in 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 192 136 ♦TIP, CONTACT 3/16 in 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 200 756 ♦TIP, CONTACT 7/32 in 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 192 135 NUT, tip 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 192 758 CLAMP, securing 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 192 137 NOZZLE ASSY, flux 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

10 192 138 NOZZLE, flux replaceable 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 043 981 ♦TORCH BODY EXTENSION 8.5 in (includes) 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 192 892 TORCH BODY EXTENSION 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 200 749 LINER, wire 1/16−1/8 x 36 in 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 200 750 LINER, wire 5/32−3/16 x 36 in 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 200 751 LINER, wire 7/32 x 36 in 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

♦ Optional

To maintain the factory original performance of your equipment, use only Manufacturer’s SuggestedReplacement Parts. The Model Number is required when ordering parts from your distributor.

Page 14: Torches for Automated Applications - MillerWeldsTorches for Automated Applications Process OBT-600 And OBT- 1200 Submerged Arc Welding (SAW) OM-1596 192 709C 2010−04 Description

Notes

Page 15: Torches for Automated Applications - MillerWeldsTorches for Automated Applications Process OBT-600 And OBT- 1200 Submerged Arc Welding (SAW) OM-1596 192 709C 2010−04 Description

Warranty Questions?

Call1-800-4-A-MILLERfor your localMiller distributor.

miller_warr 2010−01

Your distributor also givesyou ...

ServiceYou always get the fast,reliable response youneed. Most replacementparts can be in yourhands in 24 hours.

SupportNeed fast answers to thetough welding questions?Contact your distributor.The expertise of thedistributor and Miller isthere to help you, everystep of the way.

Effective January 1, 2010(Equipment with a serial number preface of MA or newer)This limited warranty supersedes all previous Miller warranties and is exclusive with no other

guarantees or warranties expressed or implied.LIMITED WARRANTY − Subject to the terms and conditionsbelow, Miller Electric Mfg. Co., Appleton, Wisconsin, warrants to itsoriginal retail purchaser that new Miller equipment sold after theeffective date of this limited warranty is free of defects in materialand workmanship at the time it is shipped by Miller. THISWARRANTY IS EXPRESSLY IN LIEU OF ALL OTHERWARRANTIES, EXPRESS OR IMPLIED, INCLUDING THEWARRANTIES OF MERCHANTABILITY AND FITNESS.

Within the warranty periods listed below, Miller will repair or replaceany warranted parts or components that fail due to such defects inmaterial or workmanship. Miller must be notified in writing withinthirty (30) days of such defect or failure, at which time Miller willprovide instructions on the warranty claim procedures to befollowed.

Miller shall honor warranty claims on warranted equipment listedbelow in the event of such a failure within the warranty timeperiods. All warranty time periods start on the delivery date of theequipment to the original end-user purchaser, and not to exceedone year after the equipment is shipped to a North Americandistributor or eighteen months after the equipment is shipped to anInternational distributor.

1. 5 Years Parts — 3 Years Labor* Original main power rectifiers only to include SCRs,

diodes, and discrete rectifier modules2. 3 Years — Parts and Labor

* Engine Driven Welding Generators(NOTE: Engines are warranted separately by theengine manufacturer.)

* Inverter Power Sources (Unless Otherwise Stated)* Plasma Arc Cutting Power Sources* Process Controllers* Semi-Automatic and Automatic Wire Feeders* Smith 30 Series Flowgauge and Flowmeter

Regulators (No Labor)* Transformer/Rectifier Power Sources* Water Coolant Systems (Integrated)

3. 2 Years — Parts* Auto-Darkening Helmet Lenses (No Labor)

4. 1 Year — Parts and Labor Unless Specified* Automatic Motion Devices* CoolBelt and CoolBand Blower Unit (No Labor)* External Monitoring Equipment and Sensors* Field Options

(NOTE: Field options are covered for the remainingwarranty period of the product they are installed in, orfor a minimum of one year — whichever is greater.)

* Flowgauge and Flowmeter Regulators (No Labor)* RFCS Foot Controls (Except RFCS-RJ45)* Fume Extractors* HF Units* ICE Plasma Cutting Torches (No Labor)* Induction Heating Power Sources, Coolers, and

Electronic Controls/Recorders* Load Banks* Motor Driven Guns (w/exception of Spoolmate

Spoolguns)* PAPR Blower Unit (No Labor)* Positioners and Controllers* Racks* Running Gear/Trailers* Spot Welders* Subarc Wire Drive Assemblies* Water Coolant Systems (Non-Integrated)* Weldcraft-Branded TIG Torches (No Labor)* Work Stations/Weld Tables (No Labor)

5. 6 Months — Parts* Batteries* Bernard Guns (No Labor)* Tregaskiss Guns (No Labor)

6. 90 Days — Parts* Accessory (Kits)* Canvas Covers* Induction Heating Coils and Blankets, Cables, and

Non-Electronic Controls* M-Guns* MIG Guns and Subarc (SAW) Guns* Remote Controls and RFCS-RJ45* Replacement Parts (No labor)* Roughneck Guns* Spoolmate Spoolguns

Miller’s True Blue® Limited Warranty shall not apply to:

1. Consumable components; such as contact tips,cutting nozzles, contactors, brushes, relays, workstation table tops and welding curtains, or parts thatfail due to normal wear. (Exception: brushes andrelays are covered on all engine-driven products.)

2. Items furnished by Miller, but manufactured by others,such as engines or trade accessories. These items arecovered by the manufacturer’s warranty, if any.

3. Equipment that has been modified by any party other thanMiller, or equipment that has been improperly installed,improperly operated or misused based upon industrystandards, or equipment which has not had reasonableand necessary maintenance, or equipment which hasbeen used for operation outside of the specifications forthe equipment.

MILLER PRODUCTS ARE INTENDED FOR PURCHASE ANDUSE BY COMMERCIAL/INDUSTRIAL USERS AND PERSONSTRAINED AND EXPERIENCED IN THE USE ANDMAINTENANCE OF WELDING EQUIPMENT.

In the event of a warranty claim covered by this warranty, theexclusive remedies shall be, at Miller’s option: (1) repair; or (2)replacement; or, where authorized in writing by Miller inappropriate cases, (3) the reasonable cost of repair orreplacement at an authorized Miller service station; or (4) paymentof or credit for the purchase price (less reasonable depreciationbased upon actual use) upon return of the goods at customer’s riskand expense. Miller’s option of repair or replacement will be F.O.B.,Factory at Appleton, Wisconsin, or F.O.B. at a Miller authorizedservice facility as determined by Miller. Therefore nocompensation or reimbursement for transportation costs of anykind will be allowed.

TO THE EXTENT PERMITTED BY LAW, THE REMEDIESPROVIDED HEREIN ARE THE SOLE AND EXCLUSIVEREMEDIES. IN NO EVENT SHALL MILLER BE LIABLE FORDIRECT, INDIRECT, SPECIAL, INCIDENTAL ORCONSEQUENTIAL DAMAGES (INCLUDING LOSS OFPROFIT), WHETHER BASED ON CONTRACT, TORT OR ANYOTHER LEGAL THEORY.

ANY EXPRESS WARRANTY NOT PROVIDED HEREIN ANDANY IMPLIED WARRANTY, GUARANTY ORREPRESENTATION AS TO PERFORMANCE, AND ANYREMEDY FOR BREACH OF CONTRACT TORT OR ANYOTHER LEGAL THEORY WHICH, BUT FOR THIS PROVISION,MIGHT ARISE BY IMPLICATION, OPERATION OF LAW,CUSTOM OF TRADE OR COURSE OF DEALING, INCLUDINGANY IMPLIED WARRANTY OF MERCHANTABILITY ORFITNESS FOR PARTICULAR PURPOSE, WITH RESPECT TOANY AND ALL EQUIPMENT FURNISHED BY MILLER ISEXCLUDED AND DISCLAIMED BY MILLER.

Some states in the U.S.A. do not allow limitations of how long animplied warranty lasts, or the exclusion of incidental, indirect,special or consequential damages, so the above limitation orexclusion may not apply to you. This warranty provides specificlegal rights, and other rights may be available, but may vary fromstate to state.

In Canada, legislation in some provinces provides for certainadditional warranties or remedies other than as stated herein, andto the extent that they may not be waived, the limitations andexclusions set out above may not apply. This Limited Warrantyprovides specific legal rights, and other rights may be available,but may vary from province to province.

Page 16: Torches for Automated Applications - MillerWeldsTorches for Automated Applications Process OBT-600 And OBT- 1200 Submerged Arc Welding (SAW) OM-1596 192 709C 2010−04 Description

ORIGINAL INSTRUCTIONS − PRINTED IN USA © 2010 Miller Electric Mfg. Co. 2010−01

Miller Electric Mfg. Co.An Illinois Tool Works Company1635 West Spencer StreetAppleton, WI 54914 USA

International Headquarters−USAUSA Phone: 920-735-4505 Auto-AttendedUSA & Canada FAX: 920-735-4134International FAX: 920-735-4125

For International Locations Visitwww.MillerWelds.com

Model Name Serial/Style Number

Purchase Date (Date which equipment was delivered to original customer.)

Distributor

Address

City

State Zip

Please complete and retain with your personal records.

Always provide Model Name and Serial/Style Number.

Contact a DISTRIBUTOR or SERVICE AGENCY near you.

Welding Supplies and Consumables

Options and Accessories

Personal Safety Equipment

Service and Repair

Replacement Parts

Training (Schools, Videos, Books)

Technical Manuals (Servicing Informationand Parts)

Circuit Diagrams

Welding Process Handbooks

Contact the Delivering Carrier to:

For Service

Owner’s Record

File a claim for loss or damage duringshipment.

For assistance in filing or settling claims, contactyour distributor and/or equipment manufacturer’sTransportation Department.

Contact your Distributor for:

To locate a Distributor or Service Agency visitwww.millerwelds.com or call 1-800-4-A-Miller