Hobart Welding Products 4500 manual Description Of Controls See Section

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6-2. Description Of Controls (See Section 6-1)

1 Engine Switch

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

2 Choke Control

Use control to change engine air/fuel mix. Move control to right (Choke) if starting a cold engine. Move control to left (Run) if starting a warm engine.

3Starter Handle To Start:

D Open fuel valve (see Section 5-5). D Turn Engine switch to On.

D Set Choke control.

D Pull starter handle until engine starts.

DMove Choke control to the left (Run) as the engine warms.

.This unit has a low oil level shutdown to

prevent starting an engine that is too low on oil. The low oil level shutdown may not stop a running engine. Check oil level if the engine does not start, or has stopped and cannot be restarted.

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.

4 Amperage Control

Use control to select weld amperage. Control may be adjusted while welding. Set Amper- age control at max. for full generator power output at ac receptacles.

To Set Amperage control: Use electrode chart (see Section 6-3) to determine correct size electrode. Select electrode type and set Amperage control to corresponding amper- age range on nameplate. Adjust control within selected range to obtain desired weld performance.

EXAMPLE: Electrode Type: 6013 Electrode Diameter: 1/8

Amperage control Setting: 80 − 125 A

6-3. Amperage Selection Table For Stick (SMAW) Electrodes

Use table to select correct amper- age for the electrode being used.

. For best results, use Stick electrodes designated for AC welding.

226 005-A

Values listed are suggested settings. Actual settings may vary depending on personal preference and/or specific application. Suggested electrode for beginners is E6013.

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Contents OM-4418210 597K ProcessesDescription From Hobart to You Table of Contents Page 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 InformationSignification des symboles − Consignes DE Sécurité − Lire Avant UtilisationUN Choc Électrique peut tuer LE Bruit peut affecter l’ouïe DES Pièces Chaudes peuvent provoquer des brûlures gravesLES Fumées ET LES GAZ peu- vent être dangereux LE Soudage peut provoquer un incendie ou une explosionDES Organes Mobiles peuvent provoquer des blessures ’EXPLOSION DE LA Batterie peut Rendre AveugleLA Chaleur DU Moteur peut pro- voquer un incendie ’AIR Comprimé peut provoquer des blessuresRisque D’INCENDIE OU D’EXPLO- Sion UNE Remorque QUI Bascule peut entraîner des blessures LE Surchauffement peut endom- mager le moteur électriqueLES Fils DE Soudage peuvent provoquer des blessures ’EMPLOI Excessif peutEn ce qui concerne les implants médicaux Proposition californienne 65 AvertissementsPrincipales normes de sécurité Information EMF− Definitions − SpecificationsSymbol Definitions Weld, Power, And Engine SpecificationsWeld Amps At Rated Duty Cycle Dimensions, Weights, And Operating AnglesAux Power Gal./Hr Weld Power In KW Fuel ConsumptionDuty Cycle Generator Power CurveAC Power Volts AC Power AmperesVolt-Ampere Curves Volts Max Amp Min AmpAC Amps Movement − InstallationInstalling Welding Generator Rating Label LocationGrounding Generator To Truck Or Trailer Frame Grounding Generator When Supplying Building SystemsEngine Prestart Checks 13 mm Full Gasoline Open/On Closed/OffOil Connecting To Weld Output Terminals 350 ft 400 ft 45 m 60 m 70 m 90 m 105 m 120 m Connecting to weldSelecting Weld Cable Sizes 150 ft 200 ft 250 ftMaterial Thickness Reference Chart Controls See Section − Operating the Welding GeneratorTo Stop turn engine switch to Off Description Of Controls See SectionAmperage Selection Table For Stick Smaw Electrodes X 15 a + 240 V x 9 a = 4 kVA/KW OM-4418 Generator Power Panel Receptacles− Operating Auxiliary Equipment Use GFCI-protected extension cordRoutine Maintenance − MaintenanceStop engine Servicing Air CleanerWelding − TroubleshootingTroubleshooting Generator PowerWith proper viscosity oil for operating temperature EngineStarting difficult Circuit Diagram For Welding Generator − Electrical DiagramsSelecting Equipment − Generator Power GuidelinesResistive Load Volts 115 Amps Grounding When Supplying Building SystemsHow Much Power Does Equipment Require? Use #10 AWG or larger insulatedFarm/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 Selecting Extension Cord Use Shortest Cord Possible − Stick Welding Smaw Guidelines Stick Welding ProcedureElectrode and Amperage Selection Chart Striking an Arc − Scratch Start TechniqueStriking an Arc − Tapping Technique 10-30 9090 End View of Work Angle Poor Weld Bead CharacteristicsGood Weld Bead Characteristics Positioning Electrode HolderElectrode Movement During Welding Conditions That Affect Weld Bead Shape16 in 30 1.6 mm Tack Welds Butt JointsLap Joint Tee JointPossible Causes Corrective Actions Troubleshooting − PorosityTroubleshooting − Excessive Spatter Weld TestTroubleshooting − Incomplete Fusion Troubleshooting − Lack Of PenetrationTroubleshooting − Excessive Penetration Troubleshooting − Burn-Through Troubleshooting − Waviness Of BeadTroubleshooting − Distortion Work like a Pro Main Assembly − Parts ListSR1 Start Your Professional Welding Career Now Service SupportAssistance Hobart Welding Products Contact your Distributor for