Hobart Welding Products OM-498 Operating the Welding Generator, Controls Kohler-Powered Units

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SECTION 5 – OPERATING THE WELDING GENERATOR

5-1. Controls (Kohler-Powered Units)

5

2

3

60 Hz

4

6

1

802 512-A / 495 179

.Weld and auxiliary power output stops if generator overheats or engine speed is too low.

1 Engine Switch

Use switch to open ignition circuit, and to stop engine.

2 Throttle Control Lever

Use lever to select engine speed. Move lever to idle position (far left) for idle speed. Move le- ver to Run position (far right) for weld/power speed.

.Always place lever in Run position (far right) for auxiliary power and for maxi- mum weld output.

3 Choke Control Lever

Use lever to change engine air/fuel mix. Move lever to left if starting a cold engine. Move le- ver to right if starting a warm engine.

4 Starter Handle

To Start: open fuel valve (see Section 4-4), turn engine switch to On, move throttle lever to Idle, set choke, and pull starter handle.

Open choke as engine warms.

To Stop: turn engine switch to Off.

.Always close fuel valve after stopping unit. Moving unit with fuel valve open may cause carburetor flooding and make starting difficult.

5 Welding Range Label

Use label to determine correct weld amper- age based on electrode size, type, and mate- rial thickness.

6 Current Control

Use control to select weld amperage. Control may be adjusted while welding.

To Set Current Control: Use label to deter- mine correct size electrode for material thick- ness. Select electrode type and set current control to corresponding amperage range. Adjust control to obtain desired weld performance.

EXAMPLE:

Material Thickness: 1/8 to 1/4 in

Electrode Diameter: 1/8

Electrode Type: E-6013

Current Control Setting: 90 – 120 A

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Contents OM-498 ProcessesDescription From Hobart to You Table of Contents Page Arc Welding Hazards Symbol UsageElectric Shock can kill ARC Rays can burn eyes and skinEngine Hazards Moving Parts can cause injury Battery Explosion can BlindEngine Exhaust Gases can kill Engine Heat can cause fireEMF Information Principal Safety StandardsRadiation can cause interference ARC Welding can cause interferenceConsignes DE SÉ Curité Lire Avant Utilisation Signification des symbolesUN Choc É Lectrique peut tuer LES Fumé ES ET LES GAZ peuvent ê tre dangereuxDES Particules Volantes peuvent blesser les yeux LE Soudage peut provoquer un in- cendie ou une explosionDES PIÈ CES Chaudes peuvent provoquer des brû lures graves LE Bruit peut affecter l’ouïe’EXPLOSION DE LA Batterie peut DES Organes Mobiles peuvent provoquer des blessuresLA Chaleur DU Moteur peut pro- voquer un incendie LA Chute DE L’APPAREIL peut blesserInformation sur les champs é lectromagné tiques Principales normes de sé curitéLE Soudage À L’ARC risque de provoquer des interfé rences Consignes relatives aux stimulateurs cardiaquesSymbol Definitions SpecificationsWeld, Power, And Engine Specifications DefinitionsFuel Consumption Kohler-Powered Units Dimensions, Weights, And Operating AnglesDimensions Weight Kohler-Powered UnitsExceeding duty cycle can damage unit and void warranty Fuel Consumption Honda-Powered UnitsDuty Cycle 100% Duty Cycle at 80 Amperes CC/DCVolt-Ampere Curves Auxiliary Power CurveInstallation Installing Welding GeneratorGrounding Generator To Truck Or Trailer Frame Use ground device as stated in electrical codes Grounding Generator When Supplying Building SystemsConnecting The Battery Honda Electric-Start Models Only Engine Prestart Checks Honda-Powered UnitsOil Connect negative cable lastSelecting Weld Cable Sizes Connecting To Weld Output Terminals45 m 60 m 70 m 90 m 105 m 120 m Stop engine beforeOperating the Welding Generator Controls Kohler-Powered Units60 Hz Choke Control LeverRecoil-Start 2Electric-Start Controls Honda-Powered Units See SectionDescription Of Controls Honda-Powered Units See Section Auxiliary Power Panel 196 921 CSA Operating Auxiliary EquipmentCircuit Breakers CB1 and CB2 Auxiliary Power Panel 495 Optional Auxiliary Power PanelsAustralia Europe Auxiliary Power Panel 196 Auxiliary Power Panel 495 South America AsiaIt exceeds 3500W Auxiliary Power Panel RatingsWire Load Plug Wired For 120/240Plex receptacle shares a load with One half of the 240 V receptacleMaintenance Overload Protection Honda-Powered Units Only Maintenance LabelWeld/Power Speed Adjustment Adjusting Engine Speed Kohler-Powered UnitsTop View Idle Speed Adjustment Stop engine. Close fuel valve Top ViewThrottle Control Lever Adjustment Screw Adjusting Engine Speed Honda-Powered UnitsStop engine. Close fuel valve Tools Needed 3/8Troubleshooting TroubleshootingAuxiliary Power WeldingViscosity oil for operating temperature Check battery voltage Honda electric-start models onlyEngine Make starting difficultCircuit Diagram For Welding Generator Electrical DiagramsWiring Diagram For Welding Generator Wiring Diagram For Auxiliary Power Panels 1 Wiring Diagram For Auxiliary Power Panels 2 Selecting Equipment Auxiliary Power GuidelinesHow Much Power Does Equipment Require? Grounding When Supplying Building SystemsEarth ground if supplying Rating DataApproximate Power Requirements For Farm/Home Equipment Approximate Power Requirements For Industrial MotorsIndustrial Motors Rating Starting Watts Running Watts Farm/Home Equipment Rating Starting Watts Running WattsContractor Rating Starting Watts Running Watts Approximate Power Requirements For Contractor EquipmentHow Much Power Can Generator Supply? Power Required To Start MotorSingle-Phase Induction Motor Starting Requirements KVA/HP x HP xObtain and install correct switch Power Company ServiceSafety practices 120 Single-PhaseCurrent Load Watts Amperes Selecting Extension Cord Use Shortest Cord PossibleStick Welding Procedure Weld current starts when electrode touches work- pieceStick Welding Smaw Guidelines Electrode and Amperage Selection Chart Striking an Arc Scratch Start TechniqueStriking an Arc Tapping Technique Good Weld Bead Characteristics Poor Weld Bead CharacteristicsPositioning Electrode Holder 9090 End View of Work AngleElectrode Movement During Welding Conditions That Affect Weld Bead ShapeLap Joint Butt JointsTee Joint 16 in 1.6 mm Tack WeldsTroubleshooting Excessive Spatter Troubleshooting PorosityWeld Test Possible Causes Corrective ActionsTroubleshooting Incomplete Fusion Troubleshooting Lack Of PenetrationTroubleshooting Excessive Penetration Troubleshooting Burn-Through Troubleshooting Waviness Of BeadTroubleshooting Distortion OM-498 31-Fig Parts ListDia Part Canada South Africa AustraliaEurope America Auxiliary Power Panel 495 253 South Africa Auxiliary Power Panel 495 CanadaAuxiliary Power Panel 495 289 Australia Auxiliary Power Panel 495 290 EuropeOM-498 Support ServiceContact your Distributor for Hobart Welding ProductsCall