Hobart Welding Products 250 installation instructions From Hobart to You

Page 2
Hobart is registered to the ISO 9001:2000 Quality System Standard.

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. Please take time to read the Safety precautions. They will help you protect yourself against potential hazards on the worksite.

We’ve made installation and operation quick and easy. With Hobart you can count on years of reliable service with proper maintenance.

And if for some reason the unit needs repair, there’s a Troubleshooting section that will help

you figure out what the problem is. The parts list will then help you to decide the exact part you may need to fix the problem. Warranty and service information for your particular model are also provided.

Hobart Welders manufactures a full line of welders and welding related equipment.

For information on other quality Hobart products, contact your local Hobart distributor to receive the latest full line catalog or individual specification sheets.

To locate your nearest distributor or service agency call 1-877-Hobart1 or visit our website at www.HobartWelders.com.

For Technical Help call 1-800-332-3281.

Hob_Thank 4/05

Working as hard as you do − every power source from Hobart is backed by the best warranty in the business.

Protect Your Investment!

Register your product at:

HobartWelders.com

Image 2
Contents Description OM-192 440WProcesses File MIG GmawFrom Hobart to You Table of Contents Warranty Arc Welding Hazards Symbol UsageMarks a special safety message Electric Shock can killFlying Metal can injure eyes ARC Rays can burn eyes and skinWelding can cause fire or explosion Buildup of GAS can injure or killCalifornia Proposition 65 Warnings About Pacemakers Principal Safety StandardsEMF Information Indique un message de sécurité particulier UNE Décharge Électrique peut entraîner la mortLES Fumées ET LES GAZ peuvent être dangereux DES Particules Volantes peuvent blesser les yeux LE Soudage peut provoquer unIncendie ou une explosion DES Pièces Chaudes peuvent provoquer des brûlures graves’EMPLOI Excessif peut SUR Risque D’INCENDIE OU D’EXPLOLA Chute DE L’APPAREIL peut blesser DES Organes Mobiles peuvent provoquer des blessuresPrincipales normes de sécurité En ce qui concerne les stimulateurs cardiaquesExceeding duty cycle can damage unit and void warranty SpecificationsWelding Power Source Duty Cycle And Overheating OverheatingDefinition Welding Gun Duty Cycle And OverheatingVolt-Ampere Curves Installing Welding Gun Connecting To Weld Output Terminals Installing Work ClampSetting Gun Polarity For Wire Type Installing Wire Spool And Adjusting Hub TensionInstalling Gas Supply Rear PanelPositioning Jumper Links VoltsInput Voltage Electrical Service GuideHz Single Min Grounding Conductor Size In AWGSelecting a Location And Connecting Input Power Threading Welding Wire WoodTurn Off unit, and disconnect input power OperationConnecting Spool Gun To Welding Power Source Turn Off unit− Operation ControlsWhile welding Voltage switch positionWeld Parameters Number on left of slash To read settingsExample 2/40 = Supplementary Protectors Routine MaintenanceDisconnect power before maintaining MonthsRemoving Knob From Front Panel Replacing Drive Roll And Wire Inlet GuideTurn Off power Turn Off power before replacing contact tip Replacing Gun Contact TipTurn off welding power source/wire feeder Wire size stamped on tip − check and match wire sizeReplacing Switch And/Or Head Tube Wire Drive/Gun Trouble Remedy Welding Troubleshooting TableWire Drive/Gun Troubleshooting Table Welding Trouble Remedy− MIG Welding Gmaw Guidelines Typical MIG Process ConnectionsThickness to Amperage a Typical MIG Process Control SettingsWire Size Amperage Range AmperageHolding And Positioning Welding Gun Conditions That Affect Weld Bead Shape Gun Movement During Welding Poor Weld Bead CharacteristicsGood Weld Bead Characteristics Troubleshooting − Excessive Penetration Troubleshooting − Excessive SpatterTroubleshooting − Porosity Possible Causes Corrective ActionsTroubleshooting − Burn-Through Troubleshooting − Lack Of PenetrationTroubleshooting − Incomplete Fusion Troubleshooting − Waviness Of Bead Troubleshooting − DistortionCommon MIG Shielding Gases Troubleshooting Guide For Semiautomatic Welding EquipmentWire does not feed ApplicationWelding arc not stable Wire slipping in drive rolls OM-192 440 − Electrical Diagram − Parts List REGULATOR/FLOWMETER, 10−50 CFH ARGON/CO2 Center Baffle w/Components Center Baffle w/Components -1Item Rear Panel w/Components Front Panel w/Components M-25 Gun Optional Spool Gun Switch Description RemarksPage Assistance ServiceSupport Contact your Distributor for Hobart Welding Products