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BETA-MIG 2250
OM-192 440
November 1998
Specifications Covered by this Manual:
903 702
Processes
Gas Metal Arc (MIG) Welding
Flux Cored Arc (FCAW)
Welding
Description
Arc Welding Power Source and Wire
Feeder

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  • Page 1 OM-192 440 November 1998 Specifications Covered by this Manual: 903 702 Processes Gas Metal Arc (MIG) Welding Flux Cored Arc (FCAW) Welding Description Arc Welding Power Source and Wire Feeder BETA-MIG 2250...
  • Page 2 From Hobart to You Thank you and congratulations on choosing Hobart. Now you can get the job done and get it done right. We know you don’t have time to do it any other way. This Owner’s Manual is designed to help you get the most out of your Hobart products.

  • Page 3: Table Des Matières

    TABLE OF CONTENTS SECTION 1 – SAFETY PRECAUTIONS - READ BEFORE USING ......1-1.

  • Page 5: Section 1 - Safety Precautions - Read Before Using

    SECTION 1 – SAFETY PRECAUTIONS - READ BEFORE USING som _nd_5/97 1-1. Symbol Usage Means Warning! Watch Out! There are possible hazards with this procedure! The possible hazards are shown in the adjoining symbols. This group of symbols means Warning! Watch Out! possible Y Marks a special safety message.
  • Page 6 ARC RAYS can burn eyes and skin. BUILDUP OF GAS can injure or kill. D Shut off shielding gas supply when not in use. Arc rays from the welding process produce intense D Always ventilate confined spaces or use visible and invisible (ultraviolet and infrared) rays that can burn eyes and skin.

  • Page 7: Additional Symbols For Installation, Operation, And Maintenance

    1-3. Additional Symbols For Installation, Operation, And Maintenance FIRE OR EXPLOSION hazard. MOVING PARTS can cause injury. D Do not install or place unit on, over, or near D Keep away from moving parts such as fans. combustible surfaces. D Keep all doors, panels, covers, and guards D Do not install unit near flammables.

  • Page 8: Emf Information

    1-5. EMF Information Considerations About Welding And The Effects Of Low Frequency 1. Keep cables close together by twisting or taping them. Electric And Magnetic Fields 2. Arrange cables to one side and away from the operator. Welding current, as it flows through welding cables, will cause electro- magnetic fields.

  • Page 9: Section 1 - Consignes De Securite - Lire Avant Utilisation

    SECTION 1 – CONSIGNES DE SECURITE – LIRE AVANT UTILISATION som _nd_fre 5/97 1-1. Signification des symboles Signifie Mise en garde ! Soyez vigilant ! Cette procédure présente des risques de danger ! Ceux-ci sont identifiés par des symboles adjacents aux directives. Ce groupe de symboles signifie Mise en garde ! Soyez vigilant ! Il y a des Y Identifie un message de sécurité...
  • Page 10 LES RAYONS DE L’ARC peuvent pro- LES ACCUMULATIONS DE GAZ ris- voquer des brûlures dans les yeux et quent de provoquer des blessures ou sur la peau. même la mort. Le rayonnement de l’arc du procédé de soudage D Fermer l’alimentation du gaz protecteur en cas de génère des rayons visibles et invisibles intenses non utilisation.

  • Page 11: Dangers Supplémentaires En Relation Avec L'installation, Le Fonctionnement Et La Maintenance

    1-3. Dangers supplémentaires en relation avec l’installation, le fonctionnement et la maintenance Risque D’INCENDIE OU DES ORGANES MOBILES peuvent D’EXPLOSION. provoquer des blessures. D Ne pas placer l’appareil sur, au-dessus ou à proxi- D Rester à l’écart des organes mobiles comme le mité...

  • Page 12: Principales Normes De Sécurité

    1-4. Principales normes de sécurité Safety in Welding and Cutting, norme ANSI Z49.1, de l’American Wel- Safe Handling of Compressed Gases in Cylinders, CGA Pamphlet P-1, ding Society, 550 N.W. Lejeune Rd, Miami FL 33126 de la Compressed Gas Association, 1235 Jefferson Davis Highway, Suite 501, Arlington, VA 22202.

  • Page 13: Section 2 - Introduction

    SECTION 2 – INTRODUCTION 2-1. Specifications Amps Input at Rated Output, 50 or 60 Hz, Single-Phase Max. Open Max. Open Circuit Circuit 200 V 230 V Rated Output Voltage 200 A at 24 VDC, 60% Duty Cycle 1.1* 1.3* 0.31* 0.18* No Load Wire Feed Wire Type and Diameter...

  • Page 14: Volt-Ampere Curves

    2-3. Volt-Ampere Curves Volt-ampere curves show minimum and maximum voltage and amper- age output capabilities of unit. Curves of other settings fall be- tween curves shown. va_curve1 4/95 – SB-192 436 2-4. Installing Welding Gun Drive Assembly Gun Securing Thumbscrew Gun End Loosen thumbscrew.

  • Page 15: Installing Work Clamp

    2-5. Installing Work Clamp Work Cable Route cable out front panel opening from inside. Negative (–/Black) Output Terminal Connect cable to terminal. Hardware Work Clamp Route cable through clamp handle and secure as shown. Close door. Tools Needed: 1/2, 3/4 in Ref.

  • Page 16: Installing Gas Supply

    2-7. Installing Gas Supply Chain gas cylinder to running gear, wall, or other stationary support so cylinder cannot fall and break off valve. Regulator/Flow Gauge Install so face is vertical. Gas Hose Connection Fitting has 5/8-18 right-hand threads. Flow Adjust Typical flow rate is 20 cfh (cubic feet per hour).

  • Page 17: Changing Input Voltage From 230 Volts To 200 Volts

    2-9. Changing Input Voltage From 230 Volts To 200 Volts Cut cable ties as necessary. 230 Volt Transformer Lead/Fan Lead Black Switch Lead Tubing Locate lead marked 230 VAC. Slide tubing down and disconnect black switch lead from splice. Be sure 230 volt transformer lead and white fan lead remain spliced.

  • Page 18: Selecting A Location And Connecting Input Power

    2-11. Selecting A Location And Connecting Input Power Rating Label Supply correct input power. Plug Y Do not move Receptacle or operate unit Connect plug to receptacle. where it could tip. Input And Grounding 18 in (457 mm) of Conductors space for airflow Connect directly to line disconnect device if hard wiring is required.

  • Page 19: Threading Welding Wire

    2-12. Threading Welding Wire Wire Spool Welding Wire Inlet Wire Guide Pressure Adjustment Knob Drive Roll Outlet Wire Guide Gun Conduit Cable Lay gun cable out straight. Tools Needed: Ref. ST-802 285 Hold wire tightly to keep it from unraveling. 6 in 4 in (150 mm)

  • Page 20: Section 3 - Operation

    SECTION 3 – OPERATION 3-1. Controls Wire Speed Control The scale around the control is per- cent, not wire feed speed. Voltage Control The higher the selected number, the thicker the material that can be welded (see welding guide and Section 3-2).

  • Page 21: Weld Parameters

    3-2. Weld Parameters WIRE TYPE WIRE MACHINE MATERIAL THICKNESS SIZE SETTINGS* 5/16 3/16 12GA 14GA 16GA 18GA 20GA 22GA FLOW RATE .023” VOLTAGE – – 0.6MM WIRESPEED – – E70S–6 .030” VOLTAGE 0.8MM WIRESPEED 20CFH .035” VOLTAGE 0.9MM WIRESPEED .045” VOLTAGE –...

  • Page 22: Section 4 - Maintenance And Troubleshooting

    SECTION 4 – MAINTENANCE AND TROUBLESHOOTING 4-1. 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 monthly. Remove drive roll and apply light coat of oil or grease to...

  • Page 23: Replacing Drive Roll And Wire Inlet Guide

    4-3. Replacing Drive Roll And Wire Inlet Guide Inlet Wire Guide Securing Screw Inlet Wire Guide Loosen screw. Slide tip as close to drive rolls as possible without touching. Tighten screw. Drive Roll Install correct drive roll for wire size and type.

  • Page 24: Cleaning Or Replacing Piecemaker 20-A Gun Liner

    4-5. Cleaning Or Replacing Piecemaker 20-A Gun Liner Tools Needed: Y Disconnect gun from unit. 7/16 in Contact Tip 1/16 in Insulator Adapter Nozzle Head Tube Remove nozzle, contact tip, and adapter. Loosen setscrew in quick-connect plug. It may also be necessary to loosen setscrew in adapter.

  • Page 25: Welding Troubleshooting Table

    4-6. Welding Troubleshooting Table Welding Trouble Remedy No weld output; wire does not feed. Secure power cord plug in receptacle (see Section 2-11). Check and replace power switch if necessary. Check circuit breakers CB1 and/or CB2, and reset if necessary (see Section 4-2). Replace building line fuse or reset circuit breaker if open (see Section 2-11).

  • Page 26: Section 5 - Electrical Diagram

    SECTION 5 – ELECTRICAL DIAGRAM SC-192 433 Figure 5-1. Circuit Diagram For Welding Power Source OM-192 440 Page 22...
  • Page 27 Notes OM-192 440 Page 23...

  • Page 28: Section 6 - Parts List

    SECTION 6 – PARTS LIST Hardware is common and not available unless listed. ST-802 281 Figure 6-1. Main Assembly OM-192 440 Page 24...
  • Page 29 Item Dia. Part Mkgs. Description Quantity Figure 6-1. Main Assembly ... . . 146 165 PANEL, side ............
  • Page 30 Hardware is common and not available unless listed. ST-802 284 Figure 6-2. Center Baffle w/Components OM-192 440 Page 26...
  • Page 31 Item Dia. Part Mkgs. Description Quantity Figure 6-2. Center Baffle w/Components (Fig 6-1 Item 9) ....058 427 RING, retaining spool ..........
  • Page 32 Hardware is common and not available unless listed. ST-802 283 Figure 6-3. Rear Panel w/Components Item Dia. Part Mkgs. Description Quantity Figure 6-3. Rear Panel w/Components (Fig 6-1 Item 10) ....049 399 NUT, 312–18 push-on .
  • Page 33 Hardware is common and not available unless listed. ST-802 282 Figure 6-4. Front Panel w/Components Item Dia. Part Mkgs. Description Quantity Figure 6-4. Front Panel w/Components (Fig 6-1 Item 17) ....143 974 HANDLE .
  • Page 34 Hardware is common and not available unless listed. Scan Figure 6-5. Gun And Cable Assembly, Piecemaker 20-A Item Part Description Quantity Figure 6-5. Gun And Cable Assembly, Piecemaker 20-A ....379 300 NOZZLE, slip on assembly .
  • Page 35 Item Part Description Quantity Figure 6-5. Gun And Cable Assembly, Piecemaker 20-A (Continued) ....177 480H FITTING, cable ........... .
  • Page 36 Notes...
  • Page 37 Notes...
  • Page 38 Notes...
  • Page 39 Hobart Warranty Effective January 1, 1997 This limited warranty supersedes all previous manufacturers Limited Warranty shall not apply to: warranties and is exclusive with no other guarantees or Items furnished by manufacturer, but manufactured by warranties expressed or implied. others, such as engines or trade accessories. These items are covered by the manufacturer’s warranty, if LIMITED WARRANTY –...
  • Page 40 Call 1-877-Hobart1 Contact the Delivering Carrier for: File a claim for loss or damage during shipment. For assistance in filing or settling claims, contact your distributor and/or equipment manufacturer’s Transportation Department.  PRINTED IN USA 1998 Hobart Welding Products. 1/00...

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