Manuals / Miller Electric / Power Tools / Welder

Miller Electric OM-230 Welding arc not stable Wire slipping in drive rolls, Welding power source

Models: OM-230

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Page 49

Problem	Probable Cause	Remedy

Welding arc not stable.	Wire slipping in drive rolls.	Adjust pressure setting on wire feed rolls. Replace worn
		drive rolls if necessary.

	Wrong size gun liner or contact tip.	Match liner and contact tip to wire size and type.

	Incorrect voltage setting for selected wire feed speed on	Readjust welding parameters.
	welding power source.

	Loose connections at the gun weld cable or work cable.	Check and tighten all connections.

	Gun in poor shape or loose connection inside gun.	Repair or replace gun as necessary.

OM-230 693 Page 45

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Miller Electric OM-230 Welding arc not stable Wire slipping in drive rolls, Drive rolls if necessary, Welding power source

Contents

Processes OM-230 693CDescription File MIG GmawFrom Miller to You Table of Contents − MIG Welding Gmaw Guidelines − Parts ListTypical MIG Process Connections Arc Welding Hazards Symbol UsageElectric Shock can kill HOT Parts can cause severe burnsARC Rays can burn eyes and skin Fumes and Gases can be hazardousWelding can cause fire or explosion Flying Metal or Dirt can injure eyesFire or Explosion hazard Welding Wire can cause injuryFalling Unit can cause injury Moving Parts can cause injuryCalifornia Proposition 65 Warnings Principal Safety StandardsEMF Information About Implanted Medical DevicesUNE Décharge Électrique peut entraîner la mort Symboles utilisésLES Fumées ET LES GAZ peuvent être dangereux DES Pièces Chaudes peuvent provoquer des brûlures gravesLE Soudage peut provoquer un in cendie ou une explosion LES Bouteilles peuvent exploser si elles sont endommagées LE Bruit peut endommager l’ouïeRisque D’INCENDIE OU D’EXPLO LA Chute DE L’APPAREIL peut blesserLES Fils DE Soudage peuvent provoquer des blessures Proposition californienne 65 AvertissementsLE Soudage À L’ARC risque de provoquer des interférences Information EMF Principales normes de sécuritéEn ce qui concerne les implants médicaux OM-230 693 Specifications Symbols And DefinitionsVolt-Ampere Curves Welding Power Source Duty Cycle And OverheatingOverheating Installing Work Cable And Clamp Connecting To Weld Output TerminalsConnecting Spoolmatic 15A Or 30A Gun Gun End Gun Liner Wire Outlet Guide Connecting XR Aluma-Pro, XR Edge, XR-A Gun, Or XR-A Python32 in 2.4 mm Installing Gas Supply Setting Gun Polarity For Wire TypePolarity Changeover Label Information 11/16Positioning Jumper Links Installing Wire Spool And Adjusting Hub TensionInput Voltage Electrical Service Guide200 230 460 575 127 20618 in 457 mm of space for airflow =GND/PE Earth Ground Selecting a Location And Connecting Input PowerL2L1 230 VAC Pressure Threading Welding WireScale Remove gun nozzle and contact tipOM-230 693 Weld Parameters 226 650-B Controls − OperationRun−in Wire Feed Speed Settings JOG ModeTrigger and pull the trigger again momentarily one second Jog Mode Voltmeter And Wire Feed Speed Meter OperationPower Up Status Welding StatusTimers Set Up Push Motor Torque SUP Or Reset rES Changing Drive Roll and Wire Inlet Guide Routine MaintenanceUnit Overload Turn Off power Aligning Drive Rolls and Wire GuideAssembly open View is from top of drive rollsTroubleshooting Trouble Remedy OM-230 693 − Electrical Diagram 229 485-A Typical MIG Process Connections − MIG Welding Gmaw GuidelinesWire Size Amperage Range Typical MIG Process Control SettingsSelect Wire Size Recommendation Wire Speed Select VoltageSide View Of Gun Angle Holding And Positioning Welding GunPush Perpendicular Drag Conditions That Affect Weld Bead ShapeShort Normal Long Slow NormalGood Weld Bead Characteristics Poor Weld Bead CharacteristicsGun Movement During Welding Troubleshooting − Porosity Troubleshooting − Excessive SpatterTroubleshooting − Excessive Penetration Possible Causes Corrective ActionsTroubleshooting − Incomplete Fusion Troubleshooting − Lack Of PenetrationTroubleshooting − Burn-Through Troubleshooting − Distortion Troubleshooting − Waviness Of BeadWeld bead Common MIG Shielding Gases Troubleshooting Guide For Semiautomatic Welding EquipmentApplication Readjust welding parameters Welding arc not stable Wire slipping in drive rollsWelding power source Drive rolls if necessary087 Drive Roll And Wire Guide KitsGrooved 056 0.9 mm 204Your distributor also gives ServiceSupport Miller Electric Mfg. Co To locate a Distributor or Service Agency visitFor assistance in filing or settling claims, contact Your distributor and/or equipment manufacturer’s

Problem

Welding arc not stable.

Wire slipping in drive rolls.

drive rolls if necessary.

Readjust welding parameters.

welding power source.

Check and tighten all connections.

OM-230 693 Page 45