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

Y Weld current starts when electrode touches work- piece.

5

4

2

3

6

1 7

YWeld current can damage 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 requires less current than a large one. Fol- low electrode manufacturer’s instructions when setting weld am- perage (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 mak- ing another weld pass.

Tools Needed:

stick 12/96 − ST-151 593

OM-945 Page 46

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Contents Processes DescriptionFrom Hobart to You Table of Contents Options and Accessories Warranty Symbol Usage Arc Welding HazardsEngine Hazards Compressed Air Hazards EMF Information Principal Safety StandardsCalifornia Proposition 65 Warnings Radiation can cause interferenceUN Choc Électrique peut tuer Signification des symboles− Consignes DE Sécurité − Lire Avant Utilisation LES Fumées ET LES GAZ peuvent être dangereuxDES Pièces Chaudes peuvent provoquer des brûlures graves LE Soudage peut provoquer un in- cendie ou une explosionDES Particules Volantes peuvent blesser les yeux LE Bruit peut affecter l’ouïeLE Surchauffement peut endom- mager le moteur électrique ’AIR Comprimé peut provoquer des blessures’EMPLOI Excessif peut LES Étincelles Volantes risquent de provoquer des blessuresPour les moteurs diesel LE Soudage À L’ARC risque de provoquer des interférencesPour les moteurs à essence En ce qui concerne les stimulateurs cardiaquesWeld, Power, and Engine Specifications − SpecificationsSymbol Definitions − DefinitionsDimensions, Weights, and Operating Angles Generator Power CurveFuel Consumption All Models Duty CycleMaterial Thickness Reference Chart Volt-Ampere CurvesVehicle frame. Always connect a ground wire − InstallationInstalling Welding Generator MountingFuel Engine Prestart Checks Robin-Powered UnitsEngine Prestart Checks Kohler-Powered Units OilDo not overfill battery cells Activating The Dry Charge Battery If ApplicableConnecting the Battery Connect negative −Installing Exhaust Pipe Weld Output TerminalsConnecting To Weld Output Terminals Selecting Weld Cable Sizes− Operating the Welding Generator Front Panel ControlsInfrequently Cold Weather Engine OperationAmperage Selection Table For Stick Smaw Electrodes Loaded− Operating Auxiliary Equipment Standard ReceptaclesOptional 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. Disconnect nega- tive − battery cable Overload Protection Robin-Powered UnitsServicing Optional Spark Arrestor Robin-Powered Units Stop engine and let coolFull Tools Needed Weld/Power Speed Adjustment Adjusting Engine Speed Robin-Powered UnitsIdle Speed Adjustment − Maintenance − KOHLER-POWERED Units Routine Maintenance Kohler-Powered UnitsMaintenance Label Kohler-Powered Units Servicing Air Cleaner Kohler−Powered Units Overload Protection Kohler-Powered Units Servicing Optional Spark Arrestor Kohler-Powered Units802 339-G / S-0842 Adjusting Engine Speed Kohler-Powered Units Stop engine. Reinstall wrapperGenerator Power − TroubleshootingTroubleshooting WeldingEngine Work like a Pro − Electrical Diagram Grounding Generator To Truck Or Trailer Frame − Generator Power GuidelinesSelecting Equipment Earth ground if supplying 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 = Starting AmperageTypical Connections To Supply Standby Power Selecting Extension Cord Use Shortest Cord Possible Current Load Watts Amperes− Stick Welding Smaw Guidelines Stick Welding ProcedureWeld current starts when electrode touches work- piece Striking an Arc − Tapping Technique Electrode and Amperage Selection ChartStriking an Arc − Scratch Start Technique Positioning Electrode Holder Poor Weld Bead CharacteristicsGood Weld Bead Characteristics Conditions That Affect Weld Bead Shape Electrode Movement During WeldingTee Joint Butt JointsLap Joint Weld Test Troubleshooting − PorosityTroubleshooting − Excessive Spatter Possible Causes Corrective ActionsTroubleshooting − Excessive Penetration Troubleshooting − Incomplete FusionTroubleshooting − Lack Of Penetration Troubleshooting − Distortion Troubleshooting − Burn-ThroughTroubleshooting − Waviness Of Bead − Parts List Main Assembly Robin Engine ShownMain Assembly Panel, Front w/Components Panel, Front w/Components -1Item Generator -1Item Assistance ServiceSupport Contact your Distributor for Hobart Welding Products
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