Hobart 750 manual Sequence Of Operation, Example Of Cutting Operation, Trigger is pressed

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3-3. Sequence Of Operation

Do not clean torch by hitting it against a hard surface. Hitting hard surfaces can damage torch parts and stop proper opera- tion.

Inspect shield cup, tip, and electrode for wear before cutting or whenever cutting speed has been significantly reduced (see torch Owner’s Manual). Do not operate torch without a tip or electrode in place.

Install &	Put On Personal	Check Torch Tip,	Check Gas/Air	Set	Turn On
Connect	Safety	Electrode, And	Pressure	Controls	Power Source
Equipment	Equipment	Retaining Cup
	Begin
	Cutting

EXAMPLE Of Cutting Operation	The pilot arc starts immediately when
	trigger is pressed.

Place drag shield on edge of metal,	Press trigger. Pilot arc starts.
or allow correct standoff distance –
approximately 1/8 in (3 mm).

After cutting arc starts, slowly start moving torch across metal.

Adjust torch speed so	Pause briefly at end of	Postflow continues for approx. 20 to
sparks go thru metal and	cut before releasing trigger.	30 seconds after releasing trigger;
out bottom of cut.		cutting arc can be instantly
		restarted during postflow by
		pressing trigger.
		801 400-A

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Contents Description OM-279Processes From 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 hearingHOT Parts can cause severe burns Moving Parts can cause injuryFlying Metal can injure eyes Overuse can cause OverheatingAbout Pacemakers Principal Safety StandardsEMF Information Signification des symboles LE Coupage pré sente un risque de feu ou d’explosionUNE DÉ Charge É Lectrique peut entraîner la mort Identifie un message de sé curité particulierRisque de blessure en cas LE Bruit peut endommager l’ouïeLES Fumé ES ET LES GAZ peuvent ê tre dangereux LE Plasma D’ARC peut entraîner des blessuresLES Bouteilles peuvent exploser si elles sont endommagé es DES Pieces Chaudes peuvent pro- voquer des brû lures gravesDES Organes Mobiles peuvent provoquer des blessures DES Particules Volantes peuvent blesser les yeuxConsignes relatives aux stimulateurs cardiaques Principales normes de sé curitéInformation sur les champs é lectromagné tiques Installation SpecificationsDimensions And Weight Duty Cycle And OverheatingSpecial installation may be Cutting SpeedSelecting a Location Movement Location And AirflowConnecting Gas/Air Supply Electrical Service GuidePlacing Jumper Links Connecting Input Power Three-Phase SystemAlways connect Grounding conductor firstOperation Front Panel ControlsSetting Gas/Air Pressure Set pressure to 70 PSI 483 kPaTrigger is pressed Sequence Of OperationExample Of Cutting Operation Maintenance & Troubleshooting MonthsTrouble Lights Checking Shield Cup Shutdown SystemTroubleshooting Running slowlyFan motor FM does not run Power light Electrical Diagrams Circuit Diagram For 200/230/460 Volt ModelsCircuit Diagram For 230/460/575 Volt Models OM-279 Parts List Main AssemblyDia Part Mkgs Description Quantity Consumable Parts For ICE-50C Service SupportContact your Distributor for Hobart Welding Products