Hobart Welding Products OM-945 manual Volt-Ampere Curves, Material Thickness Reference Chart

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4-6. Volt-Ampere Curves

The volt-ampere curve shows the minimum and maximum voltage and amperage output capabilities of the welding generator. Curves of all other settings fall between the curves shown.

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Notes

MATERIAL THICKNESS REFERENCE CHART

24 Gauge (.025 in)

22 Gauge (.031 in)

20 Gauge (.037 in)

18 Gauge (.050 in)

16 Gauge (.063 in)

14 Gauge (.078 in) 1/8 in (.125 in)

3/16 in (.188 in)

1/4 in (.25 in)

5/16 in (.313 in)

3/8 in (.375 in)

1/2 in (.5 in)

OM-945 Page 15

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Contents Stick Smaw Welding ProcessesDescription OM-945194 047AD 2007−05From Hobart to You Table of Contents Warranty HOT Parts can cause severe burns Symbol UsageArc Welding Hazards Electric Shock can killWelding can cause fire or explosion Fumes and Gases can be hazardousBuildup of GAS can injure or kill ARC Rays can burn eyes and skinCompressed Air Hazards Engine HazardsFalling Unit can cause injury Welding Wire can cause injuryHOT Parts can cause burns and injury Fire or Explosion hazardRadiation can cause interference Principal Safety StandardsCalifornia Proposition 65 Warnings EMF Information− Consignes DE Sécurité − Lire Avant Utilisation Signification des symbolesUN Choc Électrique peut tuer LES Fumées ET LES GAZ peuvent être dangereux DES Pièces Chaudes peuvent provoquer des brûlures gravesLE Soudage peut provoquer un in cendie ou une explosion ’EXPLOSION DE LA Batterie peu LE Bruit peut affecter l’ouïeDES Organes Mobiles peuvent pro voquer des blessures ’AIR Comprimé peut provoquer des blessures LA Chaleur DU Moteur peut pro- voquer un incendieRisque D’INCENDIE OU D’EXPLO- Sion ’EMPLOI Excessif peut LE Surchauffement peut endom- mager le moteur électriqueDES Organes Mobiles peuvent provoquer des blessures LES Fils DE Soudage peuvent provoquer des blessuresPrincipales normes de sécurité Proposition californienne 65 AvertissementsInformation EMF Welding Weld Output Rated Maximum Single-Phase Fuel − SpecificationsSymbol Definitions Weld, Power, and Engine SpecificationsWidth Dimensions, Weights, and Operating AnglesGenerator Power Curve Height60% Duty Cycle at 210 Amperes CC/DC Fuel Consumption All ModelsDuty Cycle 100% Duty Cycle at 170 Amperes CC/DCVolt-Ampere Curves Material Thickness Reference ChartInstalling Welding Generator − InstallationEngine Prestart Checks Kohler-Powered Units Engine Prestart Checks Robin-Powered UnitsOil Connecting the Battery Activating The Dry Charge Battery If ApplicableTools Needed 1/2 Installing Exhaust PipeWeld Output Terminals Engine backfire can cause seSelecting Weld Cable Sizes Connecting To Weld Output Terminals− Operating the Welding Generator Engine Control SwitchFront Panel Controls Loaded Cold Weather Engine OperationAmperage Selection Table For Stick Smaw Electrodes InfrequentlyTacle RC3 − Operating Auxiliary EquipmentStandard Receptacles Tacle RC2Gfci Receptacle Option Optional Generator Power ReceptaclesReceptacle Current Available in Amperes 240Routine Maintenance Robin-Powered Units − Maintenance ROBIN-POWERED UnitsMaintenance Label Robin-Powered Units Stop engine and let cool Servicing Air Cleaner Robin−Powered UnitsServicing Optional Spark Arrestor Robin-Powered Units Overload Protection Robin-Powered UnitsStop engine. Disconnect nega- tive − battery cable Fuel Line Oil Drain Valve 2 ID x 7 in Hose Oil FilterFill crankcase with new oil to full FullIdle Speed Adjustment Adjusting Engine Speed Robin-Powered UnitsStop engine Hours Weld Cables Slip Rings Routine Maintenance Kohler-Powered Units= Check = Change ~ = Clean = Replace Recycle engine FluidsMaintenance Label Kohler-Powered Units Servicing Air Cleaner Kohler−Powered Units Servicing Optional Spark Arrestor Kohler-Powered Units Overload Protection Kohler-Powered UnitsTools Needed 802 339-G / S-0842 Reinstall wrapper Top View Tools Needed 3/8 Adjusting Engine Speed Kohler-Powered UnitsAdjustment Nut Loosen lock nut. Turn adjustmentWelding − TroubleshootingTroubleshooting Generator PowerCheck fuel level EngineOd of time Install engine manufacturer’s kit for cold-weather operation− Electrical Diagram Bed liners, shipping skids, − Generator Power GuidelinesSelecting Equipment Grounding Generator To Truck Or Trailer FrameAmperes x Volts = Watts Grounding When Supplying Building SystemsHow Much Power Does Equipment Require? Ground generator to systemFarm/Home Equipment Rating Starting Watts Running Watts Approximate Power Requirements For Industrial MotorsApproximate Power Requirements For Farm/Home Equipment Industrial Motors Rating Starting Watts Running WattsContractor Rating Starting Watts Running Watts Approximate Power Requirements For Contractor EquipmentKVA/HP x HP x 1000 / Volts = Starting Amperage Power Required To Start MotorHow Much Power Can Generator Supply? Single-Phase Induction Motor Starting RequirementsTypical Connections To Supply Standby Power Cord Lengths for 240 Volt Loads Selecting Extension Cord Use Shortest Cord PossibleCord Lengths for 120 Volt Loads Current Load Watts Amperes− Stick Welding Smaw Guidelines Stick Welding ProcedureStriking an Arc − Scratch Start Technique Electrode and Amperage Selection ChartStriking an Arc − Tapping Technique 10-30 9090 Poor Weld Bead CharacteristicsGood Weld Bead Characteristics Positioning Electrode HolderElectrode Movement During Welding Conditions That Affect Weld Bead ShapeOr Less Butt JointsLap Joint Tee JointPossible Causes Corrective Actions Troubleshooting − PorosityTroubleshooting − Excessive Spatter Weld TestTroubleshooting − Lack Of Penetration Troubleshooting − Incomplete FusionTroubleshooting − Excessive Penetration Troubleshooting − Waviness Of Bead Troubleshooting − Burn-ThroughTroubleshooting − Distortion Welding Symbols 37 25 − Parts List44 − FIG 20 − FIGMain Assembly Panel, Front w/Components Panel, Front w/Components -1Item Generator -1Item Support ServiceAssistance Hobart Welding Products Contact your Distributor for

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