Hobart 750 manual Setting Gas/Air Pressure, Set pressure to 70 PSI 483 kPa

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3-2. Setting Gas/Air Pressure

Place controls in positions shown to adjust air pressure. Only gas/air cir- cuit is activated when the Power switch is turned On with Output Control in Gas/Air Set position.

1 Pressure Gauge

2 Pressure Adjustment Knob

Lift knob and turn to adjust pres- sure. Push knob down to lock in set- ting. Place output control in desired cutting output.

Set pressure to 70 PSI (483 kPa).

2

1

Requires 70–150 PSI

(483–1034 kPa) Supply

Select Desired

Set Controls Turn On Gas/Air Supply Adjust Pressure Amperage To Begin Cutting

Ref. 190 676 / Ref. 801 454-C

OM-279 Page 15

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Contents Processes OM-279Description From Hobart to You Table of Contents Page Cutting can cause fire or explosion Symbol UsageMarks a special safety message Plasma Arc Cutting HazardsNoise can damage hearing Exploding Parts can injureFlying Sparks can cause injury ARC Rays can burn eyes and skinOveruse can cause Overheating HOT Parts can cause severe burnsMoving Parts can cause injury Flying Metal can injure eyesEMF Information Principal Safety StandardsAbout Pacemakers Identifie un message de sé curité particulier Signification des symbolesLE Coupage pré sente un risque de feu ou d’explosion UNE DÉ Charge É Lectrique peut entraîner la mortLE Plasma D’ARC peut entraîner des blessures Risque de blessure en casLE Bruit peut endommager l’ouïe LES Fumé ES ET LES GAZ peuvent ê tre dangereuxDES Particules Volantes peuvent blesser les yeux LES Bouteilles peuvent exploser si elles sont endommagé esDES Pieces Chaudes peuvent pro- voquer des brû lures graves DES Organes Mobiles peuvent provoquer des blessuresInformation sur les champs é lectromagné tiques Principales normes de sé curitéConsignes relatives aux stimulateurs cardiaques Duty Cycle And Overheating InstallationSpecifications Dimensions And WeightMovement Location And Airflow Special installation may beCutting Speed Selecting a LocationElectrical Service Guide Connecting Gas/Air SupplyPlacing Jumper Links Grounding conductor first Connecting Input PowerThree-Phase System Always connectFront Panel Controls OperationSet pressure to 70 PSI 483 kPa Setting Gas/Air PressureExample Of Cutting Operation Sequence Of OperationTrigger is pressed Months Maintenance & TroubleshootingChecking Shield Cup Shutdown System Trouble LightsRunning slowly TroubleshootingFan motor FM does not run Power light Circuit Diagram For 200/230/460 Volt Models Electrical DiagramsCircuit Diagram For 230/460/575 Volt Models OM-279 Main Assembly Parts ListDia Part Mkgs Description Quantity Consumable Parts For ICE-50C Support ServiceHobart Welding Products Contact your Distributor for