Plasma Cutting System Practices | Hobart Welding Products 700I

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5-4. Plasma Cutting System Practices

! The pilot arc starts immediately when trigger is pressed.

Always connect work clamp to a clean,	DO NOT start pilot arc without cutting as this
paint-free location on workpiece, as close to	shortens the life of the tip and electrode.
cutting area as possible.

.Do not connect work clamp to the portion of the workpiece that will fall when cut.

90°

	°	angle to the	Sparks should pass through the workpiece	If sparks flare back from surface, this
	Maintain approximately a 90	angle to the	and out the bottom when cutting.	usually is an indication that travel
	workpiece surface for proper cutting results.		and out the bottom when cutting.	usually is an indication that travel
	workpiece surface for proper cutting results.			speed is too fast.
				speed is too fast.

Wt

DO NOT put pressure on shield when	Pulling rather than pushing the torch
drag cutting; instead, slide shield along	makes cutting easier. Use a proper guide
the surface for proper cutting results.	or template for accurate cutting operations.

Ref 803 915-A / Ref. 804 848-A

OM-244 013 Page 21

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Hobart Welding Products 700I, HP-70 Plasma Cutting System Practices, Pilot arc starts immediately when trigger is pressed

Contents

Processes OM-244 013CDescription File Plasma Cutters From Miller to You Table of Contents Page Plasma Arc Cutting Hazards Symbol UsageCutting can cause fire or explosion Electric Shock can kill ARC Rays can burn eyes and skin Flying Sparks can injureNoise can damage hearing Fumes and Gases can be hazardous Moving Parts can injure HOT Parts can burnFlying Metal or Dirt can injure eyes Overuse can cause Overheating California Proposition 65 Warnings Principal Safety StandardsEMF Information About Implanted Medical Devices Consignes DE Sécurité Lire Avant Utilisation Signification des symbolesLE Coupage présente un risque de feu ou d’explosion UN Choc Électrique peut tuer LES Étincelles Projetées peuvent provoquer des blessures Risque de blessure en casLE Bruit peut endommager l’ouïe LES Fumées ET LES GAZ peuvent être dangereux LES Bouteilles peuvent exploser si elles sont endommagées ’ARC Plasma peut provoquer des blessuresLES Pièces Chaudes peuvent provoquer des brûlures Les Pièces Mobiles peuvent provoquer des blessures LA Chute DE L’ÉQUIPEMENT peut provoquer des blessures ’EMPLOI Excessif peutRisque D’INCENDIE OU LE Coupage Ã L’ARC peut causer des interférence Principales normes de sécurité Proposition californienne 65 AvertissementsInformations relatives aux CEM En ce qui concerne les implants médicaux I1max DefinitionsI1eff Specifications Installation Torch Dimensions And Weight Power Source Dimensions And WeightDimensions And Weight Duty Cycle And Overheating Connecting Work Clamp Connecting Gas/Air SupplyDo not move or operate unit where it could tip Selecting a Location Extension Cord Data Electrical Service Guide Serial Number And Rating Label Location Connecting 1-Phase Input Power For 240 VAC Prong Not Used Engine Control Switch must be set at RUNAlways connect green or Terminal, never to a load Cable Management Strap Installing Alternative Plug Electrode Wrench Controls Operation Mild Steel Recommended Cut Speed Trigger Safety Lock Plasma Cutting System Practices Pilot arc starts immediately when trigger is pressed Example Of Cutting Operation Sequence Of Cutting Operation Example Of Cutting Using Stand-off Guide Sequence Of Cutting Using Stand-off Guide Sequence Of Piercing Operation Routine Maintenance Maintenance & TroubleshootingDisconnect power Before maintaining Checking Or Replacing Filter Element Checking Shield Cup Shutdown System Status/Trouble Lights Checking/Replacing Retaining Cup, Tip, And Electrode Turn Off power source before checking torch partsElectrode Wrench Torch Connections Torch And Work Cable ConnectionsWork Cable Connections Trouble Remedy Troubleshooting Power Source Arc goes on and off while cutting Troubleshooting Torch Circuit Diagram Electrical Diagram 244 011-B Recommended Spare Parts Parts ListRecommended Spare Parts Support Service Miller Electric Mfg. Co Owner’s Record