Hobart 125 EZ - Manuals

Hobart 125 EZ – Manual in PDF format online.

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Manual

Manual Hobart 125 EZ

Summary

Page 2 - From Hobart to You; Register your product at:; Protect Your Investment!

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 specification sheets. To locate your nearest distributor or service agency call...

Page 3 - TABLE OF CONTENTS

TABLE OF CONTENTS SECTION 1 − SAFETY PRECAUTIONS - READ BEFORE USING 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1. Symbol Usage 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1...

Page 5 - ELECTRIC SHOCK can kill.; FUMES AND GASES can be hazardous.

OM-923 Page 1 SECTION 1 − SAFETY PRECAUTIONS - READ BEFORE USING som _3/05 Y Warning: Protect yourself and others from injury — read and follow these precautions. 1-1. Symbol Usage Means Warning! Watch Out! There are possible hazards with this procedure! The possible hazards are shown in the adjoini...

Page 6 - WELDING can cause fire or explosion.

OM-923 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 an approved welding helmet fitted with a proper shade of fil- ter lenses to protect...

Page 7 - ARC WELDING can cause interference.

OM-923 Page 3 1-3. Additional Symbols For Installation, Operation, And Maintenance FIRE OR EXPLOSION hazard. D Do not install or place unit on, over, or near combustible surfaces. D Do not install unit near flammables. D Do not overload building wiring − be sure power supply system is properly sized...

Page 9 - Symboles utilisés; Dangers relatifs au soudage à l’arc; UNE DÉCHARGE ÉLECTRIQUE peut

OM-923 Page 5 SECTION 2 − CONSIGNES DE SÉCURITÉ − LIRE AVANT UTILISATION fre_som _3/05 Y Avertissement : se protéger et protéger les autres contre le risque de blessure — lire et respecter ces consignes. 2-1. Symboles utilisés Symbole graphique d’avertissement ! Attention ! Cette pro- cédure comport...

Page 11 - LE RAYONNEMENT HAUTE; Proposition californienne 65 Avertissements

OM-923 Page 7 2-3. Dangers supplémentaires en relation avec l’installation, le fonctionnement et la maintenance Risque D’INCENDIE OU D’EXPLO- SION. D Ne pas placer l’appareil sur, au-dessus ou à proximité de surfaces inflammables. D Ne pas installer l’appareil à proximité de produits inflammables. D...

Page 12 - Principales normes de sécurité; Information EMF

OM-923 Page 8 2-5. Principales normes de sécurité Safety in Welding, Cutting, and Allied Processes, ANSI Standard Z49.1, de Global Engineering Documents (téléphone : 1-877-413-5184, site In- ternet : www.global.ihs.com). Recommended Safe Practices for the Preparation for Welding and Cut- ting of Con...

Page 13 - A or V

OM-923 Page 9 SECTION 3 − SPECIFICATIONS 3-1. Specifications Rated Welding Output Maximum Amperage Maximum Open- Circuit Voltage DC Amperes Input at Rated Load Output 115 V, 60 Hz, Single- Phase KVA KW Weight W/ Gun Overall Dimensions 90 A @ 19 Volts DC, 20% Duty Cycle 63 A @ 21 Volts DC, 20% Duty C...

Page 16 - -4. Installing Wire Spool And Adjusting Hub Tension

OM-923 Page 12 4-4. Installing Wire Spool And Adjusting Hub Tension When a slight force is needed to turn spool, tension is set. 1/2 in Tools Needed: Ref. 802 971-C / 803 012 / 803 013 -B Installing 8 in (203 mm) Wire Spool Installing 4 in (102 mm) Wire Spool When a slight force is needed to turn sp...

Page 18 - Flux Nozzle

OM-923 Page 14 4-6. Installing Contact Tip And Nozzle Tools Needed: Ref. 804 241-A Y Turn off welding power source. 1 Nozzle Remove nozzle.2 Contact Tip 3 Tip Adapter Thread welding wire through gun (see Section 4-7).Slide contact tip over wire and tighten tip into tip adapter.Install nozzle. 1 2 3 ...

Page 22 - Months

OM-923 Page 18 SECTION 6 − MAINTENANCE &TROUBLESHOOTING 6-1. 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 23 - -4. Changing Drive Roll Or Wire Inlet Guide

OM-923 Page 19 6-4. Changing Drive Roll Or Wire Inlet Guide 1 Pressure Adjustment Knob 2 Pressure Assembly Pivot pressure adjustment knob down, and lift pressure assembly up.3 Pivot Tube Plate 4 Securing Screws 5 Pressure Arm Pivot Tube 6 Inlet Wire Guide Remove screws and pivot tube plate. Lift out...

Page 31 - Typical Control Settings; NOTE

OM-923 Page 27 8-2. Typical Control Settings These settings are guidelines only. Material and wire type, joint design, fitup, position, etc. affect settings. Test welds to be sure they comply to specifications. NOTE 3.5 x 125 A = 437 ipm 2 x 125 A = 250 ipm 1.6 x 125 A = 200 ipm 30 − 90 A 40 − 145 A...

Page 32 - Holding And Positioning Welding Gun; and tip of wire is positioned correctly on seam.

OM-923 Page 28 8-3. Holding And Positioning Welding Gun Welding wire is energized when gun trigger is pressed. Before lowering helmet and pressing 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...

Page 33 - Conditions That Affect Weld Bead Shape

OM-923 Page 29 8-4. 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 EXT...

Page 34 - Gun Movement During Welding; multiple stringer beads works better.; Poor Weld Bead Characteristics

OM-923 Page 30 8-5. 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 or multiple stringer beads works better. NOTE 1 Stringer Bead − Steady Movement Along Seam 2...

Page 37 - Waviness Of Bead; Distortion; -16. Troubleshooting Guide For Semiautomatic Welding Equipment; Problem

OM-923 Page 33 8-14. 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 40 - DESCRIPTION

OM-923 Page 36 1 804 243-A 2 3 5 − See Table 8-1 4 6 7 7 Figure 8-2. H-9B Gun Description Part No. 225 397 Item No. Figure 8-2. H-9B Gun Quantity 1 169 715 NOZZLE, slip type .500 orf flush 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 ♦ 2...

Page 42 - Notes

Page 44 - 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 © 2005 Hobart Welding Products. 6/05 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...