Hobart Welding Products 125 manual Serial Number And Rating Label Location, Make this installation

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.A complete Parts List is available at www.HobartWelders.com

5-6. Serial Number And Rating Label Location

The serial number and rating information for this product is located on back. Use rating label to determine input power requirements and/or rated output. For future reference, write serial number in space provided on back cover of this manual.

5-7. Selecting A Location And Connecting 115 Volt Input Power

! Do not move or operate unit

where it could tip.18 in. (460 mm)

	!	Installation must meet all
		National and Local Codes −
		have only qualified persons
		make this installation.
	!	Special installation may be
		required where gasoline or
		volatile liquids are present −
		see NEC Article 511 or CEC
		Section 20.
	1	Grounded Receptacle −
		NEMA Type 5−15R
		(Customer Supplied)
	For	115 volt AC input power, a 20
	ampere individual branch circuit
	protected by time-delay fuses or
	circuit breaker is required.
	2	Plug From Unit
	Select extension cord of 12 AWG
1	for up to 50 ft (15 m) or 10 AWG for
1	50 up to 100 ft (30 m).

2

18 in.

(460 mm)

803 443-C

OM-947 Page 17

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Contents Processes DescriptionFile Flux Cored Fcaw Protect Your Investment From Hobart to YouTable of Contents 10-2 10-1Arc Welding Hazards Symbol UsageElectric Shock can kill HOT Parts can burnARC 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 injureFalling Equipment can injure Moving Parts can injureCalifornia Proposition 65 Warnings Principal Safety StandardsEMF Information About Implanted Medical DevicesSymboles utilisés UNE Décharge Électrique peut entraîner la mortIndique des instructions spécifiques LES Pièces Chaudes peuvent provoquer des brûlures LES Fumées ET LES GAZ peuvent être dangereuxLE Soudage peut provoquer un incendie ou une explosion LES Bouteilles peuvent exploser si elles sont endommagées LE Bruit peut endommager l’ouïeRisque D’INCENDIE OU LA Chute DE L’ÉQUIPEMENT peut provoquer des blessuresLes Pièces Mobiles peuvent causer des blessures Proposition californienne 65 AvertissementsLES Fils DE Soudage peuvent provoquer des blessures LE Soudage À L’ARC risque de provoquer des interférencesPrincipales normes de sécurité Informations relatives aux CEMEn ce qui concerne les implants médicaux OM-947 Symbols And Definitions − SpecificationsSpecifications − DefinitionsDuty Cycle And Overheating WarrantyVolt-Ampere Curves Can damage unit or gun and void− Installation Installing Work ClampSlide insulating grips over handles Tools Needed OM-947 Changing Polarity Process/Polarity TableTools Needed 11/16, 1-1/8 Shielding Gas Installing Gas SupplyInstalling Wire Spool And Adjusting Hub Tension Only applies to units equipped withOptional hub kit Make this installation Selecting a Location And Connecting 115 Volt Input PowerSerial Number And Rating Label Location SectionTurn off welding power source Installing Contact Tip And NozzleHold wire tightly to keep it from unraveling Threading Welding WireControls − OperationOperating The Gun LoadWeld Parameter Chart Routine Maintenance − Maintenance &TROUBLESHOOTINGOverload Protection Drive Motor ProtectionRetaining Knob Opening Changing Drive Roll Or Wire Inlet GuideReplacing Gun Contact Tip Turn Off power before replacing contact tipHold wire tightly to keep it Cleaning Gun LinerThread wire according to From unraveling. SecureReplacing Gun Liner Remove black sleeving from end of replacement linerTools Needed Head Tube Mm / 10 mm Tube. Separate gun handle halves10 mm Secure power cord plug in receptacle see Section Troubleshooting TablePower source see Section Trouble RemedyCircuit Diagram − Electrical Diagram− FCAW/GMAW Welding Guidelines Typical Fcaw Process ConnectionsTypical Gmaw MIG Process Connections Wire Size Amperage Range Typical Control SettingsAmperage Select VoltageEnd View of Work Angle Holding And Positioning Welding GunConditions That Affect Weld Bead Shape Short Normal LongSlow Normal Poor Weld Bead Characteristics Good Weld Bead CharacteristicsGun Movement During Welding Troubleshooting − Excessive Spatter Troubleshooting − PorosityPossible Causes Corrective Actions Troubleshooting − Excessive Penetration Troubleshooting − Lack Of PenetrationTroubleshooting − Incomplete Fusion Troubleshooting − Waviness Of Bead Troubleshooting − Burn-ThroughTroubleshooting − Distortion Base metal to moveCommon Gmaw MIG Shielding Gases Troubleshooting Guide For Semiautomatic Welding EquipmentApplication FilletOpen gas valve at cylinder and adjust flow rate Gas nozzle plugged Clean or replace gas nozzleGas hose in gun and cable assembly Loose or broken wires to gas solenoidAccessories − ACCESSORIES/CONSUMABLESConsumables PkgMaterial Thickness Reference Chart Work like a Pro Service SupportAssistance Hobart Welding Products Contact your Distributor for