Hobart Welding Products OM-947 212 149D manual Operation, Controls, Operating The Gun, Load

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SECTION 5 − OPERATION

5-1. Controls

 

1

Voltage Switch

 

Use control to select the weld

 

voltage range. As the thickness of

 

material increases, a higher voltage

 

range must be selected (see weld

 

setting label in welding power

2

source or Section 5-3as

applicable). Do not switch under

 

 

load.

 

. Switch must “click” into detent

 

 

position for weld output.

 

2

Wire Feed Control

 

Use control to select a wire feed

 

speed. As Voltage switch setting in-

 

creases, wire speed range also in-

 

creases (see weld setting label in

 

welding power source or Section

 

5-3as applicable).

 

3

Power Switch

1

3

Ref. 229 999-A

5-2. Operating The Gun

1 Trigger Switch

When pressed, energized wire feeds and shielding gas flows (if unit is equipped with optional gas solenoid).

1

Ref. 804 240-A

OM-947 Page 17

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Contents Processes DescriptionFile Flux Cored Fcaw From Hobart to You Table of Contents Warranty Marks a special safety message Symbol UsageArc Welding Hazards Electric Shock can killWelding can cause fire or explosion ARC Rays can burn eyes and skinFlying Metal can injure eyes Buildup of GAS can injure or killCalifornia Proposition 65 Warnings Principal Safety Standards EMF InformationAbout Pacemakers UNE Décharge Électrique peut entraîner la mort LES Fumées ET LES GAZ peuvent être dangereuxIndique un message de sécurité particulier Incendie ou une explosion LE Soudage peut provoquer unDES Particules Volantes peuvent blesser les yeux DES Pièces Chaudes peuvent provoquer des brûlures gravesLA Chute DE L’APPAREIL peut blesser Risque D’INCENDIE OU D’EXPLO’EMPLOI Excessif peut SUR DES Organes Mobiles peuvent provoquer des blessuresEn ce qui concerne les stimulateurs cardiaques Principales normes de sécurité− Specifications SpecificationsDuty Cycle And Overheating Installing Work Clamp − InstallationVolt-Ampere Curves VoltageChanging Polarity Process/Polarity TableInstalling Gas Supply Tools Needed 11/16, 1-1/8Shielding Gas Tools Needed Installing Wire Spool And Adjusting Hub TensionDo not move or operate unit where it could tip Turn off welding power source Installing Contact Tip And Nozzle150 mm Pull and hold wire cut off end Threading Welding WireBe sure that wire is positioned Reinstall tip adapter, if applicable, contact tipControls − OperationOperating The Gun LoadWeld Parameter Chart 210 Routine Maintenance − Maintenance &TROUBLESHOOTINGOverload Protection Drive Motor ProtectionChanging Drive Roll Or Wire Inlet Guide Replacing Gun Contact Tip Cleaning Gun Liner Replacing Gun Liner Head Mm / 10 mm TubeLoosen liner setscrew 10 mm Troubleshooting Table Trouble RemedyDoes not run Circuit Diagram − Electrical Diagram− Wire Welding Guidelines Typical Fcaw Process ConnectionsTypical MIG Process Connections Wire Size Amperage Range Typical Control SettingsThickness to Amperage a Select VoltageHolding And Positioning Welding Gun Short Normal Long Conditions That Affect Weld Bead ShapeShortNormalLong Slow Normal FastPoor Weld Bead Characteristics Good Weld Bead CharacteristicsGun Movement During Welding Troubleshooting − Porosity Troubleshooting − Excessive SpatterTroubleshooting − Excessive Penetration Possible Causes Corrective ActionsTroubleshooting − Lack Of Penetration Troubleshooting − Incomplete FusionTroubleshooting − Burn-Through Troubleshooting − Distortion Troubleshooting − Waviness Of BeadTroubleshooting Guide For Semiautomatic Welding Equipment Wire does not feedMain Assembly − Parts ListOptional − See Table 225Pkg Pkg195 Hub Kit For 8 in Wire Spool 209Weatherproof Nylon Page Page Page Service SupportAssistance Hobart Welding Products Contact your Distributor for