Hobart Welding Products 2250 specifications Volt-Ampere Curves, Installing Welding Gun

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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

 

 

 

 

 

1

Drive Assembly

 

 

2

Gun Securing Thumbscrew

 

 

3

Gun End

 

 

Loosen thumbscrew. Insert gun

 

 

end through opening until it bottoms

 

 

against drive assembly. Tighten

 

 

thumbscrew.

 

 

4

Gun Trigger Leads

1

3

Insert leads, one at a time, through

 

 

small grommet on front panel. Con-

 

 

 

 

nect female friction terminals to

 

 

matching male terminals in unit.

 

 

Polarity is not important.

 

 

Close door.

2

4

Ref. ST-801 875

OM-192 440 Page 10

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Contents Processes DescriptionFrom Hobart to You Table of Contents Page 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 killPrincipal Safety Standards EMF Information About PacemakersUN Choc Électrique peut tuer Signification des symbolesConsignes DE Securite Lire Avant Utilisation LES Fumées ET LES GAZ peuvent être dangereuxDES Pièces Chaudes peuvent pro- voquer des brûlures graves LE Soudage peut provoquer un incendie ou une explosionDES Particules Volantes peuvent blesser les yeux LE Bruit peut affecter l’ouïe’EMPLOI Excessif peut Risque D’INCENDIE OULA Chute DE L’APPAREIL peut blesser DES Organes Mobiles peuvent provoquer des blessuresConsignes relatives aux stimulateurs cardiaques Principales normes de sécuritéInformation sur les champs électromagnétiques Introduction SpecificationsExceeding duty cycle can damage unit and void warranty Duty Cycle And OverheatingInstalling Welding Gun Volt-Ampere CurvesInstalling Work Clamp Setting Gun Polarity For Wire TypeInstalling Gas Supply Installing Wire Spool And Adjusting Hub TensionInput Voltage Electrical Service GuideChanging Input Voltage From 230 Volts To 200 Volts Min Grounding Conductor Size In AWG/KcmilSelecting a Location And Connecting Input Power Threading Welding Wire Hold wire tightly to keep it from unravelingOperation ControlsWeld Parameters Circuit Breakers Maintenance and TroubleshootingRoutine Maintenance MonthsReplacing Gun Contact Tip Replacing Drive Roll And Wire Inlet GuideTurn Off power before replacing contact tip To Reassemble Gun Cleaning Or Replacing Piecemaker 20-A Gun LinerDisconnect gun from unit Wire Drive/Gun Trouble Remedy Welding Troubleshooting TableWire Drive/Gun Troubleshooting Table Welding Trouble RemedyElectrical Diagram Circuit Diagram For Welding Power SourceOM-192 440 Parts List Main AssemblyItem Dia Part Mkgs Description Quantity Center Baffle w/Components Center Baffle w/Components -1 Item Rear Panel w/Components Front Panel w/Components Gun And Cable Assembly, Piecemaker 20-A Part Description Quantity Page Page Page Effective January 1 CallContact your Distributor for Hobart Welding Products