Hobart Welding Products OM-945 manual Stick Welding Smaw Guidelines, Stick Welding Procedure

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SECTION 13 − STICK WELDING (SMAW) GUIDELINES

13-1. Stick Welding Procedure

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!

Weld current starts when

electrode touches work- piece.

Weld current can damage

5

4

2

3

6

1 7

electronic parts in vehicles. Disconnect both battery cables before welding on a vehicle. Place work clamp as close to the weld as possible.

1 Workpiece

Make sure workpiece is clean be- fore welding.

2Work Clamp

3Electrode

A small diameter electrode re- quires less current than a large one. Follow electrode manufactur- er’s instructions when setting weld amperage (see Section 13-2).

4Insulated Electrode Holder

5Electrode Holder Position

6Arc Length

Arc length is the distance from the electrode to the workpiece. A short arc with correct amperage will give a sharp, crackling sound.

7 Slag

Use a chipping hammer and wire brush to remove slag. Remove slag and check weld bead before making another weld pass.

Tools Needed:

stick 2007−04 − ST-151 593

OM-945 Page 49

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Contents Description ProcessesOM-945194 047AD 2007−05 Stick Smaw WeldingFrom Hobart to You Table of Contents Warranty Arc Welding Hazards Symbol UsageElectric Shock can kill HOT Parts can cause severe burnsBuildup of GAS can injure or kill Fumes and Gases can be hazardousARC Rays can burn eyes and skin Welding can cause fire or explosionCompressed Air Hazards Engine HazardsHOT Parts can cause burns and injury Welding Wire can cause injuryFire or Explosion hazard Falling Unit can cause injuryCalifornia Proposition 65 Warnings Principal Safety StandardsEMF Information Radiation can cause interferenceUN Choc Électrique peut tuer Signification des symboles− Consignes DE Sécurité − Lire Avant Utilisation LE Soudage peut provoquer un in cendie ou une explosion DES Pièces Chaudes peuvent provoquer des brûlures gravesLES Fumées ET LES GAZ peuvent être dangereux DES Organes Mobiles peuvent pro voquer des blessures LE Bruit peut affecter l’ouïe’EXPLOSION DE LA Batterie peu Risque D’INCENDIE OU D’EXPLO- Sion LA Chaleur DU Moteur peut pro- voquer un incendie’AIR Comprimé peut provoquer des blessures DES Organes Mobiles peuvent provoquer des blessures LE Surchauffement peut endom- mager le moteur électriqueLES Fils DE Soudage peuvent provoquer des blessures ’EMPLOI Excessif peutInformation EMF Proposition californienne 65 AvertissementsPrincipales normes de sécurité Symbol Definitions − SpecificationsWeld, Power, and Engine Specifications Welding Weld Output Rated Maximum Single-Phase FuelGenerator Power Curve Dimensions, Weights, and Operating AnglesHeight WidthDuty Cycle Fuel Consumption All Models100% Duty Cycle at 170 Amperes CC/DC 60% Duty Cycle at 210 Amperes CC/DCVolt-Ampere Curves Material Thickness Reference ChartInstalling Welding Generator − InstallationOil Engine Prestart Checks Robin-Powered UnitsEngine Prestart Checks Kohler-Powered Units Connecting the Battery Activating The Dry Charge Battery If ApplicableWeld Output Terminals Installing Exhaust PipeEngine backfire can cause se Tools Needed 1/2Selecting Weld Cable Sizes Connecting To Weld Output TerminalsFront Panel Controls Engine Control Switch− Operating the Welding Generator Amperage Selection Table For Stick Smaw Electrodes Cold Weather Engine OperationInfrequently LoadedStandard Receptacles − Operating Auxiliary EquipmentTacle RC2 Tacle RC3Gfci 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 UnitsStop engine. Disconnect nega- tive − battery cable Overload Protection Robin-Powered UnitsServicing Optional Spark Arrestor Robin-Powered Units Fill crankcase with new oil to full Oil Drain Valve 2 ID x 7 in Hose Oil FilterFull Fuel LineStop engine Adjusting Engine Speed Robin-Powered UnitsIdle Speed Adjustment = Check = Change ~ = Clean = Replace Routine Maintenance Kohler-Powered UnitsRecycle engine Fluids Hours Weld Cables Slip RingsMaintenance Label Kohler-Powered Units Servicing Air Cleaner Kohler−Powered Units Tools Needed Overload Protection Kohler-Powered UnitsServicing Optional Spark Arrestor Kohler-Powered Units 802 339-G / S-0842 Adjustment Nut Adjusting Engine Speed Kohler-Powered UnitsLoosen lock nut. Turn adjustment Reinstall wrapper Top View Tools Needed 3/8Troubleshooting − TroubleshootingGenerator Power WeldingCheck fuel level EngineOd of time Install engine manufacturer’s kit for cold-weather operation− Electrical Diagram Selecting Equipment − Generator Power GuidelinesGrounding Generator To Truck Or Trailer Frame Bed liners, shipping skids,How Much Power Does Equipment Require? Grounding When Supplying Building SystemsGround generator to system Amperes x Volts = WattsApproximate 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 x 1000 / Volts = Starting AmperageTypical Connections To Supply Standby Power Cord Lengths for 120 Volt Loads Selecting Extension Cord Use Shortest Cord PossibleCurrent Load Watts Amperes Cord Lengths for 240 Volt Loads− Stick Welding Smaw Guidelines Stick Welding ProcedureStriking an Arc − Tapping Technique Electrode and Amperage Selection ChartStriking an Arc − Scratch Start Technique Good Weld Bead Characteristics Poor Weld Bead CharacteristicsPositioning Electrode Holder 10-30 9090Electrode Movement During Welding Conditions That Affect Weld Bead ShapeLap Joint Butt JointsTee Joint Or LessTroubleshooting − Excessive Spatter Troubleshooting − PorosityWeld Test Possible Causes Corrective ActionsTroubleshooting − Excessive Penetration Troubleshooting − Incomplete FusionTroubleshooting − Lack Of Penetration Troubleshooting − Distortion Troubleshooting − Burn-ThroughTroubleshooting − Waviness Of Bead Welding Symbols 44 − FIG − Parts List20 − FIG 37 25Main Assembly Panel, Front w/Components Panel, Front w/Components -1Item Generator -1Item Assistance ServiceSupport Hobart Welding Products Contact your Distributor for
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