Stick Welding Smaw Guidelines | Hobart Welding Products OM-240 438E

SECTION 13 − STICK WELDING (SMAW) GUIDELINES

13-1. Stick Welding Procedure

!	Weld current starts when

		electrode touches work-
Tools Needed:	Equipment Needed:	piece.
Tools Needed:

!	Weld 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.

Constant Current

Welding Power Source

5 4

2

3

6

1 7

.Always wear appropriate per- sonal protective clothing.

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.

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OM-240 438 Page 51

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Hobart Welding Products OM-240 438E manual Stick Welding Smaw Guidelines, Stick Welding Procedure, Weld current starts when

Contents

Processes OM-240 438EDescription Protect Your Investment From Hobart to You Table of Contents 10-1 HOT Parts can burn Symbol UsageArc Welding Hazards Electric Shock can kill Welding can cause fire or explosion Fumes and Gases can be hazardousBuildup of GAS can injure or kill ARC Rays can burn eyes and skin Engine Hazards Hydraulic Fluid can injure or kill Hydraulic HazardsCompressed Air Hazards Hydraulic Equipment can injure or kill Falling Equipment can injure Compressed AIR can injure or killFire or Explosion hazard Overheating can damage motors California Proposition 65 Warnings EMF Information Principal Safety StandardsAbout Implanted Medical Devices Indique des instructions spécifiques Signification des symboles− Consignes DE Sécurité − Lire Avant Utilisation UN Choc Électrique peut tuer LE Bruit peut affecter l’ouïe LES Pièces Chaudes peuvent provoquer des brûluresLES Fumées ET LES GAZ peu- vent être dangereux LE Soudage peut provoquer un incendie ou une explosion Les Pièces Mobiles peuvent causer des blessures ’EXPLOSION DE LA Batterie peut provoquer des blessures LA Chaleur DU Moteur peut pro- voquer un incendie LES Étincelles À L’ÉCHAPPEMENT peuvent provoquer un incendie Lire LES Instructions LES Étincelles Projetées peuvent provoquer des blessures Risque D’INCENDIE OULA Chute DE L’ÉQUIPEMENT peut provoquer des blessures LE Surchauffement peut endommager le moteur électrique UNE Remorque QUI Bascule peut provoquer des blessures Proposition californienne 65 AvertissementsLE Soudage À L’ARC risque de provoquer des interférences Informations relatives aux CEM Principales normes de sécuritéEn ce qui concerne les implants médicaux − Definitions − SpecificationsSymbol Definitions Weld, Power, and Engine Specifications Weight 562 lb 254 kg Dimensions, Weights, And Operating Angles Duty Cycle Dimensions For Units With Optional Running GearDimensions Duty Cycle For CC/DC Mode For CC/AC ModeVolt-Ampere Curves Fuel Consumption Generator Power Curve Movement Location / Airflow Clearance − InstallationInstalling Welding Generator Serial Number And Rating Label Location GND/PE Grounding Generator To Truck Or Trailer Frame Oil Engine Prestart Checks + − Installing Exhaust PipeConnecting Or Replacing the Battery Connect negative − battery cable last Stop engine Failure to properly connect Connecting To Weld Output TerminalsTools Needed 3/4 100 150 200 250 Selecting Weld Cable Sizes150 ft 200 ft 250 ft 350 ft 400 ft 45 m 60 m 70 m 90 m 105 m 120 m Start Your Professional Welding Career Now Fine Control Engine Control Switch− Operating the Welding Generator Front Panel Controls Frequently Loaded Cold Weather Engine OperationInfrequently Loaded Stop engine Typical Stick Welding Connections And Control SettingsElectrode At least once a month, run engine at − Operating Auxiliary EquipmentStandard Receptacles Gfci Receptacle Option Receptacle Simultaneous Weld And PowerWiring Optional 240 Volt Plug Current Available in Amperes 240 Maintenance Label − Maintenance 500 Routine Maintenance100 200 Servicing Air Cleaner Before Adding Oil Running engine Changing Engine Oil, Oil Filter, and Fuel FilterStop engine and let cool Close valve and valve cap Turn idle speed screw for fine ad- justments Adjusting Engine SpeedIdle Speed Adjustment Weld/Power Speed Adjustment Fuse F1 See Section Stop engine. Disconnect negative − battery cableOverload Protection Servicing Optional Spark Arrestor Trouble Remedy − TroubleshootingWelding Troubleshooting Generator Power Troubleshooting Check fuel level Engine TroubleshootingCheck receptacle wiring and connections Ers SR2 and SR3 Recommended Spare Parts − Parts ListControl switch S2, and throttle solenoid TS1 Recommended Spare Parts Circuit Diagram For Welding Generator − Electrical Diagrams 240 424-B Selecting Equipment − Generator Power Guidelines Electrical codes Grounding When Supplying Building SystemsHow Much Power Does Equipment Require? Use ground device as stated Farm/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 Watts Contractor Rating Starting Watts Running Watts Approximate Power Requirements For Contractor Equipment KVA/HP x HP x 1000 / Volts = Starting Amperage Power Required To Start MotorHow Much Power Can Generator Supply? Single-Phase Induction Motor Starting Requirements Typical Connections To Supply Standby Power Selecting Extension Cord Use Shortest Cord Possible Electrode touches work Stick Welding Procedure− Stick Welding Smaw Guidelines Weld current starts when Tapping Technique Electrode and Amperage Selection ChartStriking an Arc Scratch Technique End View Of Work Angle Side View Of Electrode Angle 10-30 Poor Weld Bead CharacteristicsGood Weld Bead Characteristics Positioning Electrode Holder Normal Conditions That Affect Weld Bead ShapeElectrode Movement During Welding Electrode Angle Or Less Groove Butt JointsLap Joint Tee Joint Weld bead TroubleshootingWeld Test Possible Causes Corrective Actions Direction Lack of Penetration Good PenetrationGood Penetration Excessive Penetration Metal remains SOCKET/WRENCH Selection Table Standard Metric Support ServiceAssistance Hobart Welding Products Contact your Distributor for