Hobart Welding Products OM-493 manual Electrode and Amperage Selection Chart

Page 41

11-2. Electrode and Amperage Selection Chart

ELECTRODE

DIAMETER

AMPERAGE RANGE

50

100

150

200

250

300

350

400

450

ELECTRODE

POSITION

PENETRATION

USAGE

6011

7/32

DC*

AC

3/32

6010

1/8

5/32

&

3/16

1/4

6010

EP

ALL

DEEP

MIN. PREP, ROUGH

1/16

6011

EP

ALL

DEEP

HIGH SPATTER

5/64

6013

EP,EN

ALL

LOW

GENERAL

3/32

6013

1/8

7014

EP,EN

ALL

MED

SMOOTH, EASY,

5/32

FAST

3/16

7018

EP

ALL

LOW

LOW HYDROGEN,

7/32

STRONG

1/4

FLAT

SMOOTH, EASY,

3/32

7024

EP,EN

HORIZ

LOW

FASTER

FILLET

1/8

NI-CL

EP

ALL

LOW

CAST IRON

7014

5/32

308L

EP

ALL

LOW

STAINLESS

3/16

7/32

*EP = ELECTRODE POSITIVE (REVERSE POLARITY)

1/4

EN = ELECTRODE NEGATIVE (STRAIGHT POLARITY)

3/32

1/8

7018

5/32

3/16

7/32

1/4

3/32

1/8

7024

5/32

3/16

7/32

1/4

3/32

Ni-Cl

1/8

5/32

3/16

3/32

308L

1/8

5/32

Ref. S-087 985-A

11-3. Striking an Arc – Scratch Start Technique

1	1	Electrode
	2	Workpiece
	3	Arc
	Drag electrode across workpiece
2	like striking a match; lift electrode
	slightly after touching work. If arc
	goes out electrode was lifted to
	high. If electrode sticks to work-
3	piece, use a quick twist to free it.

		S-0049

11-4. Striking an Arc – Tapping Technique

1	1	Electrode
	2	Workpiece
	3	Arc
	Bring electrode straight down to
2	workpiece; then lift slightly to start
2	arc. If arc goes out, electrode was
	lifted too high. If electrode sticks to
	workpiece, use a quick twist to free it.
3
		S-0050

OM-493 Page 37

Image 41

Contents Description OM-493Processes From Hobart to You Table of Contents Page Arc Welding Hazards Symbol UsageElectric Shock can kill ARC Rays can burn eyes and skinEngine Hazards Moving Parts can cause injury Battery Explosion can BlindEngine Exhaust Gases can kill Engine Heat can cause fireEMF Information Principal Safety StandardsRadiation can cause interference ARC Welding can cause interferenceConsignes DE Sécurité Lire Avant Utilisation Signification des symbolesUN Choc Électrique peut tuer LES Fumées ET LES GAZ peuvent être dangereuxDES Particules Volantes peuvent blesser les yeux LE Soudage peut provoquer un in- cendie ou une explosionDES Pièces Chaudes peuvent provoquer des brûlures graves LE Bruit peut affecter l’ouïe’EXPLOSION DE LA Batterie peut DES Organes Mobiles peuvent provoquer des blessuresLA Chaleur DU Moteur peut pro- voquer un incendie LA Chute DE L’APPAREIL peut blesserInformation sur les champs électromagnétiques Principales normes de sécuritéLE Soudage À L’ARC risque de provoquer des interférences Consignes relatives aux stimulateurs cardiaquesSymbol Definitions SpecificationsWeld, Power, and Engine Specifications DefinitionsDimensions Dimensions, Weights, and Operating AnglesAuxiliary Power Curve Fuel Consumption Exceeding duty cycle can damage unit and void warrantyDuty Cycle Continuous WeldingInstalling Welding Generator InstallationVolt-Ampere Curve Movement Do not lift unit from end Airflow ClearanceFuel Engine Prestart ChecksDo not overfill battery cells Activating The Dry Charge Battery If ApplicableRead and follow all instruc ChargerInstalling Exhaust Pipe Connecting the BatteryTools Needed 1/2 Connect negative cable lastSelecting Weld Cable Sizes Connecting to Weld Output Terminals100 ft 30 m Or Less 10 100% Duty CycleDo not switch under load Engine Control SwitchOperating the Welding Generator Front Panel ControlsStandard Receptacles Operating Auxiliary EquipmentWeld Current 120V 240VGenerator Optional Auxiliary Power ReceptaclesGfci Receptacle Option 120 V 20 a AC Gfci RecepMaintenance Maintenance Label Stop engine. Disconnect negative battery cable Servicing Air CleanerOverload Protection Stop engineFull Tools Needed Changing Engine Oil, Oil Filter, and Fuel FilterStop engine and let cool Oil Drain Valve 2 ID x 12 in Hose Oil FilterWeld/Power Speed Adjustment Adjusting Engine SpeedIdle Speed Adjustment Servicing Optional Spark Arrestor Auxiliary Power TroubleshootingWelding Trouble RemedyEngine Switch S2, and throttle solenoid TS1Circuit Diagram For Welding Generator Electrical DiagramGrounding Generator To Truck Or Trailer Frame Auxiliary Power GuidelinesSelecting Equipment How Much Power Does Equipment Require? Grounding When Supplying Building SystemsEarth ground if supplying 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 x240 120 Ground Typical Connections To Supply Standby PowerCurrent Load Watts Amperes Selecting Extension Cord Use Shortest Cord PossibleStick 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 Good Weld Bead Characteristics Poor Weld Bead CharacteristicsPositioning Electrode Holder 10-30 9090 End View of Work AngleElectrode Movement During Welding Conditions That Affect Weld Bead ShapeLap Joint Butt JointsTee Joint 16 in 1.6 mm Tack WeldsTroubleshooting 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 12-3 Parts ListDia Part Description Mkgs Quantity Panel, Front w/Components Panel, Front w/Components -1 Item Generator -1 Item Page Page Support ServiceCall Contact your Distributor forHobart Welding Products