Hobart Welding Products 250A manual Trouble Light And Checking Shield Cup Shutdown System

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6-2. Trouble Light And Checking Shield Cup Shutdown System

1CUP

TEMP

INPUT VOLTAGE

Checking Torch Shield Cup Shutdown System

Power source Power switch must be reset whenever cup shutdown system is activated. Always turn Off power source when changing or checking consumables.

2

If certain problems occur, the trouble light comes on, and output stops.

1Trouble Light

a Lights if shield cup is loose.

Turn power Off, and check shield cup connection

(see Item 2 below). Power must be reset whenever

the cup shutdown is activated.

Check shield cup shutdown system once a week.

bLights if power source overheats (see Sections 4-3and 4-5).

cLights if input power is not within specification (93 to 137 vac). Power must be reset whenever the input voltage shutdown is activated.

2 Torch Shield Cup

Turn Power On and loosen shield cup. If shutdown system works properly, trouble light comes on. If not, turn power Off and check for loose shield cup.

Check consumables (see Sections 6-4and Parts List).

If system works properly, retighten cup and reset power.

Ref. 196 630 / Ref. 801 300-A

OM-928 Page 16

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Contents Processes DescriptionFrom Hobart to You Table of Contents Page Symbol Usage Marks a special safety messagePlasma Arc Cutting Hazards Cutting can cause fire or explosionExploding Parts can injure Flying Sparks can cause injuryARC Rays can burn eyes and skin Noise can damage hearingCalifornia Proposition 65 Warnings About Pacemakers Principal Safety StandardsEMF Information Signification des symboles LE Coupage présente un risque de feu ou d’explosionUNE Décharge Électrique peut entraîner la mort Identifie un message de sécurité particulierRisque de blessure en cas LE Bruit peut endommager l’ouïeLES Fumées ET LES GAZ peuvent être dangereux LE Plasma D’ARC peut entraîner des blessuresLES Bouteilles peuvent exploser si elles sont endommagées DES Pieces Chaudes peuvent pro- voquer des brûlures gravesDES Organes Mobiles peuvent provoquer des blessures DES Particules Volantes peuvent blesser les yeuxConsignes relatives aux stimulateurs cardiaques Principales normes de sécuritéInformation sur les champs électromagnétiques I1eff − DefinitionsI1max − Installation Specifications For Power SourceSpecifications For Torch Duty Cycle And OverheatingTorch Dimensions And Weight Dimensions And WeightSelecting a Location Movement Location And AirflowConnecting Work Clamp Connecting Input PowerControls Trigger Safety Lock− Operation 197 196 Pilot arc starts immediately when trigger is pressedSequence Of Operation − Maintenance & Troubleshooting MonthsTrouble Light And Checking Shield Cup Shutdown System Checking Torch Shield Cup Shutdown SystemWork Cable Connections Torch And Work Cable ConnectionsTorch Connections Turn Off power source before checking torch parts Checking/Replacing Retaining Cup, Tip, And ElectrodeTroubleshooting Power Source Troubleshooting Torch − Electrical Diagram Circuit Diagram− Parts List Main AssemblyDia Part Description Quantity Mkgs Cup 196928 RingRing 196935 196929 197567 196926 196925 196927 Page Page Service SupportContact your Distributor for Hobart Welding Products

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