Hobart OM-1581 manual Gun Trouble

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B. Gun Trouble

Trouble

Remedy

 

 

No weld output; gun/feeder does not

Secure 115 VAC input plug in 115 volts ac receptacle (see Section 3-12).

work.

 

 

 

 

Place Power switch on welding power source in the On position.

 

 

Erratic weld output.

Tighten and clean all connections.

 

 

Pressing gun/feeder trigger does not en-

Secure plug from gun control cable into 10-socket receptacle on wire feeder (see Section 3-6).

ergize weld control; welding wire is not

 

energized; shielding gas does not flow.

 

 

 

Wire does not feed; burnback in contact

Reinstall current pick-up tab if applicable (see Section 5-2).

tip.

 

 

 

Wire feeds, shielding gas flows, but

Clean or replace drive rolls. See Troubleshooting section in welding power source Owner’s Manual (see

welding wire is not energized.

Sections 5-2 and 5-3).

 

 

Wire feeds erratically.

Check and correct drive roll pressure (see Section 3-15).

 

 

 

Clean drive roll or replace drive roll (see Sections 5-2 and 5-3).

 

 

Gun overheating (water-cooled

Be sure coolant flowrate is at least 1 qt/min (0.95 L/min).

models).

 

 

 

 

Corrosion buildup in gun decreasing coolant flowrate. Backflush coolant system, clean coolant system

 

filter, and clean fittings (see Section 3-17).

 

 

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Contents Description OM-1581Processes From Hobart to You Table of Contents Page Arc Welding Hazards Symbol UsageElectric Shock can kill Fumes and Gases can be hazardousWelding can cause fire or explosion ARC Rays can burn eyes and skinFlying Metal can injure eyes Buildup of GAS can injure or killPrincipal Safety Standards About Pacemakers EMF InformationConsignes DE Securite Lire Avant Utilisation Signification des symbolesUN Choc É Lectrique peut tuer LES Fumé ES ET LES GAZ peuvent ê tre dangereuxLE Bruit peut affecter l’ouïe LE Soudage peut provoquer un incendie ou une explosionDES Particules Volantes peuvent blesser les yeux LA Chute DE L’APPAREIL peut blesser Risque D’INCENDIE OU’EMPLOI Excessif peut DES Organes Mobiles peuvent provoquer des blessuresInformation sur les champs é lectromagné tiques Principales normes de sé curitéWire Feeder Specifications SpecificationsGun Specifications Duty Cycle And OverheatingInstallation Constant Voltage CV Weld- ing Power Source Plug Removing Top Cover Of Gun Air-Cooled Gun Connections Water-Cooled Gun Connections Air-Cooled Feeder Connections Rear Of Water Fitting Left- Hand Threads Water-Cooled Feeder ConnectionsVoltage Sensing Lead Connections Adjusting Contact Tip PositionContactor 12 VAC/Contactor Control Plug InformationPLG5 Installing Wire Spool Threading Welding Wire Through Feeder Coolant Guidelines Threading Welding Wire Through GunAdjusting Wire Feed Starting Speed Operation Safety EquipmentFront Panel Controls Of Feeder Air-Cooled Model Shown Work And Voltage Sensing Cable ClampsRun-In Speed Control Jog SwitchVoltage/Wire Speed Switch And Meter Optional Spot Controls Optional Remote Voltage Control Optional Power SwitchInternal Controls Flowmeter OptionalShielding Gas Gun ControlsCoolant Supply For Water-Cooled Models Only Sequence Of Gas Metal Arc Welding Gmaw Continuous Or SpotMonths Maintenance & TroubleshootingRoutine Maintenance Changing Or Cleaning Gun Drive Roll Changing Feeder Drive Roll And Wire Inlet Guide Replacing Or Cleaning Feeder Drive Roll Bearing Replacing Or Cleaning Gun Drive Roll BearingRemoving Contact Tip Adapter In Air-Cooled Models Changing Gun Contact Tip And LinerRemoving Contact Tip Adapter In Water-Cooled Models Replacing Hub AssemblyOverload Protection Adjusting Hub TensionWater Flow Switch Optional For Water-Cooled Models Wire Feeder Trouble TroubleshootingGun Trouble Circuit Diagram For Wire Feeder Electrical DiagramsCircuit Diagram For Gun Main Assembly Parts ListDia Part CB1 Motor & Wire Drive -1 Item Panel, Front w/Components Water-Cooled Model Illustrated Panel, Front w/Components -1 Item Exploded View Of Gun 133 203 Barrel Assembly -4 Item Optional Call HOBART1 for your local Hobart distributor Hobart Welding Products Contact your Distributor for