Hobart Welding Products HP-25 TORCH, 250ci manual Plasma Cutting System Practices

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.A complete Parts List is available at www.HobartWelders.com

5-3. Plasma Cutting System Practices

Y 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°

°

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.

 

 

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-230 455 Page 16

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Contents
OM-230 455C ProcessesDescription File Plasma CuttersFrom 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 blessuresDES Pieces Chaudes peuvent pro- voquer des brûlures graves DES Organes Mobiles peuvent provoquer des blessuresLA Chute DE L’APPAREIL peut blesser Risque D’INCENDIE OUPrincipales normes de sécurité Information sur les champs électromagnétiquesLE Coupage à L’ARC peut causer des interférence Consignes relatives aux stimulateurs cardiaquesI1eff − DefinitionsI1max − Installation Specifications For Power SourceSpecifications For Torch Duty Cycle And OverheatingTorch Dimensions And Weight Dimensions And WeightSelecting a Location Movement, Location And Airflow Extension Cord Data Connecting Work Clamp Electrical Service Guide For 120 VAC Connecting Input Power Generator Or Inverter RequirementsCheck input voltage available at site Grounded Receptacle Plug From UnitCable Management Strap Electrode WrenchRecommended Cutting Speed For Material Thickness − OperationControls Plasma Cutting System Practices Maintain approximately a 90 angle toWhen trigger is pressed Sequence Of Cutting OperationPilot arc starts immediately Example Of Cutting OperationSplit section to bottom 16 in 1.6 mm Sequence Of Cutting Using Stand-off GuideExample Of Cutting Using Stand-off Guide Sequence Of Piercing Operation − Maintenance & Troubleshooting Routine MaintenanceTrouble Lights And Checking Shield Cup Shutdown System Checking Torch Shield Cup Shutdown SystemElectrode Wrench Turn Off power source before checking torch partsChecking/Replacing Retaining Cup, Tip, And Electrode Compressor Filter Cleaning And Replacement Disconnect input powerWork Cable Connections Torch And Work Cable ConnectionsTorch Connections Check Control board PC1 Troubleshooting Power SourceOnly by authorized Service Station Troubleshooting Torch − Electrical Diagram Circuit DiagramRecommended Spare Parts − Parts ListRecommended Spare Parts Material Thickness Gauge Page Assistance ServiceSupport Contact your Distributor for Hobart Welding Products
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