Page 2 - From Hobart to You
Hobart Welders manufactures a full lineof welders and welding related equipment.For information on other quality Hobart products, contact your local Hobartdistributor to receive the latest full line catalog or individual catalog sheets.To locate your nearest distributor or service agency call 1-877-...
Page 3 - TABLE OF CONTENTS
TABLE OF CONTENTS SECTION 1 − SAFETY PRECAUTIONS - READ BEFORE USING 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1. Symbol Usage 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ....
Page 5 - ELECTRIC SHOCK can kill.; FUMES AND GASES can be hazardous.
OM-925 Page 1 SECTION 1 − SAFETY PRECAUTIONS - READ BEFORE USING som _8/03 1-1. Symbol Usage Means Warning! Watch Out! There are possible hazards with this procedure! The possible hazards are shown in the adjoining symbols. Y Marks a special safety message. . Means “Note”; not safety related. This g...
Page 6 - WELDING can cause fire or explosion.
OM-925 Page 2 Arc rays from the welding process produce intense visible and invisible (ultraviolet and infrared) rays that can burn eyes and skin. Sparks fly off from the weld. ARC RAYS can burn eyes and skin. D Wear a welding helmet fitted with a proper shade of filter to protect your face and eyes...
Page 12 - -5. Information sur les champs électromagnétiques
OM-925 Page 8 2-4. Principales normes de sécurité Safety in Welding, Cutting, and Allied Processes, norme ANSI Z49.1, de l’American Welding Society, 550 N.W. LeJeune Rd, Miami FL 33126 (téléphone : (305) 443 − 9353, site Web : www.aws.org). Recommended Safe Practices for the Preparation for Welding ...
Page 13 - Hz; SECTION 4
OM-925 Page 9 SECTION 3 − DEFINITIONS 3-1. Symbols And Definitions A Amperage V Voltage Hz Hertz Negative Positive Direct Current (DC) Single Phase Input Output Voltage Input Off On Do Not Switch While Welding Gas Metal Arc Welding (GMAW) Wire Feed SECTION 4 − SPECIFICATIONS 4-1. Specifications A. 1...
Page 14 - A or V
OM-925 Page 10 4-2. Duty Cycle And Overheating Duty Cycle is percentage of 10 minutes that unit can weld at rated load without overheating.If unit overheats, thermostat(s) opens, output stops, and cooling fan runs. Wait fifteen minutes for unit to cool. Reduce amperage or duty cycle before welding. ...
Page 24 - -2. Weld Parameter Chart For 115 VAC Model
OM-925 Page 20 6-2. Weld Parameter Chart For 115 VAC Model
Page 26 - -3. Weld Parameter Chart For 230 VAC Model
OM-925 Page 22 6-3. Weld Parameter Chart For 230 VAC Model
Page 28 - Months
OM-925 Page 24 SECTION 7 − MAINTENANCE &TROUBLESHOOTING 7-1. Routine Maintenance Y Disconnect power before maintaining. 3 Months Replace unreadable labels. Repair or replace cracked weld cable. Clean and tighten weld terminals. 6 Months Blow out or vacuum inside. During heavy service, clean mont...
Page 29 - -4. Changing Drive Roll Or Wire Inlet Guide
OM-925 Page 25 7-4. Changing Drive Roll Or Wire Inlet Guide 1 Inlet Wire Guide Securing Screw 2 Inlet Wire Guide Loosen screw. Slide tip as close to drive rolls as possible without touching. Tighten screw.3 Drive Roll The drive roll consists of two differ- ent sized grooves. The stamped markings on ...
Page 33 - Figure 8-1. Circuit Diagram For 115 VAC Model
OM-925 Page 29 SECTION 8 − ELECTRICAL DIAGRAM 217 621-A Figure 8-1. Circuit Diagram For 115 VAC Model
Page 34 - Figure 8-2. Circuit Diagram For 230 VAC Model
OM-925 Page 30 217 755-A Figure 8-2. Circuit Diagram For 230 VAC Model
Page 36 - Typical MIG Process Control Settings; NOTE
OM-925 Page 32 9-2. Typical MIG Process Control Settings These settings are guidelines only. Material and wire type, joint design, fitup,position, shielding gas, etc. affect settings. Test welds to be sure they comply tospecifications. NOTE 3.5 x 125 A = 437 ipm 2 x 125 A = 250 ipm 1.6 x 125 A = 200...
Page 37 - Holding And Positioning Welding Gun
OM-925 Page 33 9-3. Holding And Positioning Welding Gun Welding wire is energized when gun trigger is pressed. Before lowering helmet andpressing trigger, be sure wire is no more than 1/2 in (13 mm) past end of nozzle,and tip of wire is positioned correctly on seam. NOTE 1 Hold Gun and Control Gun T...
Page 38 - Conditions That Affect Weld Bead Shape
OM-925 Page 34 9-4. Conditions That Affect Weld Bead Shape Weld bead shape depends on gun angle, direction of travel, electrode extension(stickout), travel speed, thickness of base metal, wire feed speed (weld current),and voltage. NOTE Slow FILLET WELD ELECTODE EXTENSIONS (STICKOUT) ELECTRODE EXTEN...
Page 39 - Gun Movement During Welding; Poor Weld Bead Characteristics
OM-925 Page 35 9-5. Gun Movement During Welding Normally, a single stringer bead is satisfactory for most narrow groove weld joints;however, for wide groove weld joints or bridging across gaps, a weave bead ormultiple stringer beads works better. NOTE 1 Stringer Bead − Steady Movement Along Seam 2 W...
Page 42 - Waviness Of Bead; Distortion
OM-925 Page 38 9-14. Troubleshooting − Waviness Of Bead Waviness Of Bead − weld metal that is not parallel and does not cover joint formed by base metal. S-0641 Possible Causes Corrective Actions Welding wire extends too far out of nozzle. Be sure welding wire extends not more than 1/2 in (13 mm) be...
Page 43 - -17. Troubleshooting Guide For Semiautomatic Welding Equipment
OM-925 Page 39 9-16. Common MIG Shielding Gases This is a general chart for common gases and where they are used. Many different combinations (mixtures) of shielding gases have been developed over the years. The most commonly used shielding gases are listed in the following table. Application Gas Sp...
Page 45 - Notes
Page 46 - PARTS LIST
OM-925 Page 42 SECTION 10 − PARTS LIST . Hardware is common andnot available unless listed. 803 716-B 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 34 32 31 49 43 48 47 46 45 44 51 50 36 35 42 41 40 38 39 37 30 33 52 53 54 Figure 10-1. Main Assembly
Page 52 - Hobart Welding Products; Please complete and retain with your personal records.; To locate a Distributor,; Contact your Distributor for:; Resources Available; For technical assistance:
PRINTED IN USA 2003 Hobart Welding Products. 1/03 Hobart Welding Products An Illinois Tool Works Company 600 West Main Street Troy, OH 45373 USA For Technical Assistance: Call1-800-332-3281 For Literature Or Nearest Dealer: Call 1-877-Hobart1 Model Name Serial/Style Number Purchase Date (Date whic...