Hobart Welding Products OM-945 manual Generator Power Guidelines, Selecting Equipment

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SECTION 12 − GENERATOR POWER GUIDELINES

.The views in this section are intended to be representative of all engine-driven welding generators. Your unit may differ from those shown.

12-1. Selecting Equipment

1

2

3

OR

1Generator Power Receptacles − Neutral Bonded To Frame

23-Prong Plug From Case Grounded Equipment

32-Prong Plug From Double Insulated Equipment

.Be sure equipment has double

insulated symbol and/or word- ing on it.

! Do not use 2-prong plug un- less equipment is double in- sulated.

gen_pwr 2007−04 − Ref. ST-159 730 / ST-800 577

12-2. Grounding Generator To Truck Or Trailer Frame

!

Always ground generator

frame to vehicle frame to pre- vent electric shock and static electricity hazards.

!

Also see AWS Safety & Health

Fact Sheet No. 29, Grounding of Portable And Vehicle Mounted Welding Generators.

 

 

1

Equipment Grounding Terminal

 

 

 

(On Front Panel)

 

 

2

Grounding Cable (Not Supplied)

 

1

3

Metal Vehicle Frame

GND/PE

2

Connect cable from equipment

 

 

ground terminal to metal vehicle

 

 

frame. Use #10 AWG or larger insu-

 

 

lated copper wire.

.

3

!

!

Electrically bond generator frame

to vehicle frame by metal-to-met- al contact.

Bed liners, shipping skids, and

some running gear insulate the welding generator from the ve- hicle frame. Always connect a ground wire from the genera- tor equipment grounding ter- minal to bare metal on the ve- hicle frame as shown.

If unit does not have GFCI re-

ceptacles, use GFCI-protected extension cord.

S-0854

OM-945 Page 42

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Contents OM-945194 047AD 2007−05 ProcessesDescription Stick Smaw WeldingFrom Hobart to You Table of Contents Warranty Electric Shock can kill Symbol UsageArc Welding Hazards HOT Parts can cause severe burnsARC Rays can burn eyes and skin Fumes and Gases can be hazardousBuildup of GAS can injure or kill Welding can cause fire or explosionEngine Hazards Compressed Air HazardsFire or Explosion hazard Welding Wire can cause injuryHOT Parts can cause burns and injury Falling Unit can cause injuryEMF Information Principal Safety StandardsCalifornia Proposition 65 Warnings Radiation can cause interference− 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 LES Fils DE Soudage peuvent provoquer des blessures LE Surchauffement peut endom- mager le moteur électriqueDES Organes Mobiles peuvent provoquer des blessures ’EMPLOI Excessif peutPrincipales normes de sécurité Proposition californienne 65 AvertissementsInformation EMF Weld, Power, and Engine Specifications − SpecificationsSymbol Definitions Welding Weld Output Rated Maximum Single-Phase FuelHeight Dimensions, Weights, and Operating AnglesGenerator Power Curve Width100% Duty Cycle at 170 Amperes CC/DC Fuel Consumption All ModelsDuty Cycle 60% Duty Cycle at 210 Amperes CC/DCMaterial Thickness Reference Chart Volt-Ampere Curves− Installation Installing Welding GeneratorEngine Prestart Checks Kohler-Powered Units Engine Prestart Checks Robin-Powered UnitsOil Activating The Dry Charge Battery If Applicable Connecting the BatteryEngine backfire can cause se Installing Exhaust PipeWeld Output Terminals Tools Needed 1/2Connecting To Weld Output Terminals Selecting Weld Cable Sizes− Operating the Welding Generator Engine Control SwitchFront Panel Controls Infrequently Cold Weather Engine OperationAmperage Selection Table For Stick Smaw Electrodes LoadedTacle RC2 − Operating Auxiliary EquipmentStandard Receptacles Tacle RC3Optional Generator Power Receptacles Gfci Receptacle OptionCurrent Available in Amperes 240 Receptacle− Maintenance ROBIN-POWERED Units Routine Maintenance Robin-Powered UnitsMaintenance Label Robin-Powered Units Servicing Air Cleaner Robin−Powered Units Stop engine and let coolServicing Optional Spark Arrestor Robin-Powered Units Overload Protection Robin-Powered UnitsStop engine. Disconnect nega- tive − battery cable Full Oil Drain Valve 2 ID x 7 in Hose Oil FilterFill crankcase with new oil to full Fuel LineIdle Speed Adjustment Adjusting Engine Speed Robin-Powered UnitsStop engine Recycle engine Fluids Routine Maintenance Kohler-Powered Units= Check = Change ~ = Clean = Replace Hours Weld Cables Slip RingsMaintenance 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 Loosen lock nut. Turn adjustment Adjusting Engine Speed Kohler-Powered UnitsAdjustment Nut Reinstall wrapper Top View Tools Needed 3/8Generator Power − TroubleshootingTroubleshooting WeldingEngine Check fuel levelInstall engine manufacturer’s kit for cold-weather operation Od of time− Electrical Diagram Grounding Generator To Truck Or Trailer Frame − Generator Power GuidelinesSelecting Equipment Bed liners, shipping skids,Ground generator to system Grounding When Supplying Building SystemsHow Much Power Does Equipment Require? Amperes x Volts = WattsIndustrial Motors Rating Starting Watts Running Watts Approximate Power Requirements For Industrial MotorsApproximate Power Requirements For Farm/Home Equipment Farm/Home Equipment Rating Starting Watts Running WattsApproximate Power Requirements For Contractor Equipment Contractor Rating Starting Watts Running WattsSingle-Phase Induction Motor Starting Requirements Power Required To Start MotorHow Much Power Can Generator Supply? KVA/HP x HP x 1000 / Volts = Starting AmperageTypical Connections To Supply Standby Power Current Load Watts Amperes Selecting Extension Cord Use Shortest Cord PossibleCord Lengths for 120 Volt Loads Cord Lengths for 240 Volt LoadsStick Welding Procedure − Stick Welding Smaw GuidelinesStriking an Arc − Scratch Start Technique Electrode and Amperage Selection ChartStriking an Arc − Tapping Technique Positioning Electrode Holder Poor Weld Bead CharacteristicsGood Weld Bead Characteristics 10-30 9090Conditions That Affect Weld Bead Shape Electrode Movement During WeldingTee Joint Butt JointsLap Joint Or LessWeld Test Troubleshooting − PorosityTroubleshooting − Excessive Spatter Possible Causes Corrective ActionsTroubleshooting − Lack Of Penetration Troubleshooting − Incomplete FusionTroubleshooting − Excessive Penetration Troubleshooting − Waviness Of Bead Troubleshooting − Burn-ThroughTroubleshooting − Distortion Welding Symbols 20 − FIG − Parts List44 − FIG 37 25Main Assembly Panel, Front w/Components Panel, Front w/Components -1Item Generator -1Item Support ServiceAssistance Contact your Distributor for Hobart Welding Products
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