Miller Electric 140 Auto-Set Special installation may be, Required where gasoline or, Section

Page 19

.A complete Parts List is available on-line at www.MillerWelds.com

4-7. Selecting A Location And Connecting Input Power For 115 VAC Model

1

18 in

(460 mm)

	1	Rating Label
	2	Grounded Receptacle
	A 115 volt, 20 ampere individual
	branch circuit protected by time-delay
	fuses or circuit breaker is required.
2	3	Plug From Unit
2

Select extension cord of 14 AWG for up to 50 ft (15 m) or 12 AWG for 50 up to 200 ft (61 m).

		Y Special installation may be
		required where gasoline or
	3	volatile liquids are present −
	3	see NEC Article 511 or CEC
		see NEC Article 511 or CEC
		Section 20.

18 in

(460 mm)

804 681-A

OM-225 311 Page 15

Image 19

Contents File MIG Gmaw OM-225 311CProcesses DescriptionFrom Miller to You Table of Contents − Parts List − Maintenance &TROUBLESHOOTINGElectric Shock can kill Symbol UsageMarks a special safety message Arc Welding HazardsBuildup of GAS can injure or kill ARC Rays can burn eyes and skinWelding can cause fire or explosion Flying Metal can injure eyesCalifornia Proposition 65 Warnings EMF Information Principal Safety StandardsAbout Pacemakers LES Fumées ET LES GAZ peuvent être dangereux UNE Décharge Électrique peut entraîner la mortIndique un message de sécurité particulier LE Bruit peut endommager l’ouïe LE Soudage peut provoquer un incendie ou une explosionDES Particules Volantes peuvent blesser les yeux DES Pièces Chaudes peuvent provoquer des brûlures gravesDES Organes Mobiles peuvent provoquer des blessures Risque D’INCENDIE OU D’EXPLOLA Chute DE L’APPAREIL peut blesser ’EMPLOI Excessif peut SUREn ce qui concerne les stimulateurs cardiaques Principales normes de sécuritéVAC Model w/Auto−SetE − SpecificationsSpecifications VAC ModelOverheating Duty Cycle And Overheating115 VAC Model 230 VAC ModelAmperage Volt-Ampere Curves Installing Welding Gun − Installation Incorrect Process/Polarity Table Work Cable Routing Inside UnitChanging Polarity Installing Gas Supply See NEC Article 511 or CEC Special installation may beRequired where gasoline or Volatile liquids are present −Do not move or operate unit where it could tip Installing Wire Spool And Adjusting Hub Tension Electrical Service Guide For 230 VAC ModelInput Voltage 230 Input Amperes At Rated Output Remove gun nozzle and contact tip Threading Welding WireCut Off End Of Wire Open Pressure Assembly Knob Removing MIG Gun From Welding Power SourceEnd Of Wire To Spool Operation Installing Optional Spool Gun Switch In Welding Power SourceConnecting Spool Gun To Millermatic 140/180 Controls For 115 VAC Model w/Auto-SetE − Operation115V Controls For 115 VAC Model230V Controls For 230 VAC ModelOM-225 311 Weld Parameter Chart For 115 VAC Model w/Auto−SetE 10/90 10/65 10/80 10/60 10/50 10/95 10/75 10/100 Aluminum 100% Argon 4043ER 030 0.8 mm 035 0.9 mm10/32 OM-225 311 10/90 10/45 10/60 10/30 10/32 10/80 035 0.9 mm 030 0.8 mm#220179 #202926 #220179Dcep Dcen 024 0.6 mm #220179 030 0.8 mm #202926 035 0.9 mm 045 1.2 mm 100 10/60 10/45 10/40 10/20 10/50Drive Motor Protection − Maintenance &TROUBLESHOOTINGRoutine Maintenance Overload ProtectionTurn Off power before replacing contact tip Changing Drive Roll Or Wire Inlet GuideReplacing Gun Contact Tip Disconnect gun from unit Cleaning Or Replacing Gun LinerTo Reassemble Gun Replacing Switch And/Or Head Tube Trouble Remedy Troubleshooting TableOM-225 311 Circuit Diagram − Electrical Diagram234 419-B Typical MIG Process Connections − MIG Welding Gmaw GuidelinesSelect Voltage Typical MIG Process Control SettingsWire Recommendation Wire Speed Select Wire SizeHolding And Positioning Welding Gun Conditions That Affect Weld Bead Shape Good Weld Bead Characteristics Poor Weld Bead CharacteristicsGun Movement During Welding Troubleshooting − Porosity Troubleshooting − Excessive SpatterPossible Causes Corrective Actions Troubleshooting − Lack Of Penetration Troubleshooting − Excessive PenetrationTroubleshooting − Incomplete Fusion Troubleshooting − Waviness Of Bead Troubleshooting − Burn-ThroughTroubleshooting − Distortion Application Common MIG Shielding GasesFlat & Horizontal1 Fillet Options − Parts ListRecommended Spare Parts Optional Drive RollsPage Support ServiceMiller Electric Mfg. Co Owner’s Record

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