Miller Electric 180, M-10 Gun, 140 Auto-Set manual Duty Cycle And Overheating, VAC Model

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

3-2. Duty Cycle And Overheating

A. 115 VAC

Model

20% duty cycle at 90 amps

2 Minutes Welding

8 Minutes Resting

Duty Cycle is percentage of 10 minutes that unit can weld at rated load without overheating.

If unit overheats, thermostat(s) opens, output stops, and cooling fan runs. Wait fifteen minutes for unit to cool. Reduce amperage or duty cycle before welding.

YExceeding duty cycle can damage unit or gun and void warranty.

B. 230 VAC

Model

30% duty cycle at 135 amps, 60 Hz

3 Minutes Welding

7 Minutes Resting

Overheating

0

A or V

15

OR

Reduce Duty Cycle

Minutes

duty1 4/95 − 230 342-A / 230 343-A

OM-225 311 Page 10

Image 14

Contents Description OM-225 311CProcesses File MIG GmawFrom Miller to You Table of Contents − Maintenance &TROUBLESHOOTING − Parts ListArc Welding Hazards Symbol UsageMarks a special safety message Electric Shock can killFlying Metal can injure eyes ARC Rays can burn eyes and skinWelding can cause fire or explosion Buildup of GAS can injure or killCalifornia Proposition 65 Warnings About Pacemakers Principal Safety StandardsEMF Information Indique un message de sécurité particulier UNE Décharge Électrique peut entraîner la mortLES Fumées ET LES GAZ peuvent être dangereux DES Pièces Chaudes peuvent provoquer des brûlures graves LE Soudage peut provoquer un incendie ou une explosionDES Particules Volantes peuvent blesser les yeux LE Bruit peut endommager l’ouïe ’EMPLOI Excessif peut SUR Risque D’INCENDIE OU D’EXPLO LA Chute DE L’APPAREIL peut blesser DES Organes Mobiles peuvent provoquer des blessuresPrincipales normes de sécurité En ce qui concerne les stimulateurs cardiaquesVAC Model − SpecificationsSpecifications VAC Model w/Auto−SetE230 VAC Model Duty Cycle And Overheating115 VAC Model OverheatingVolt-Ampere Curves AmperageIncorrect − InstallationInstalling Welding Gun Changing Polarity Work Cable Routing Inside UnitProcess/Polarity Table Installing Gas Supply Volatile liquids are present − Special installation may beRequired where gasoline or See NEC Article 511 or CECDo not move or operate unit where it could tip Input Voltage 230 Input Amperes At Rated Output Electrical Service Guide For 230 VAC ModelInstalling Wire Spool And Adjusting Hub Tension Threading Welding Wire Remove gun nozzle and contact tipEnd Of Wire To Spool Removing MIG Gun From Welding Power SourceCut Off End Of Wire Open Pressure Assembly Knob Installing Optional Spool Gun Switch In Welding Power Source OperationConnecting Spool Gun To Millermatic 140/180 − Operation Controls For 115 VAC Model w/Auto-SetEControls For 115 VAC Model 115VControls For 230 VAC Model 230VOM-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 10/100 030 0.8 mm 035 0.9 mm Aluminum 100% Argon 4043ER10/32 OM-225 311 10/90 10/45 10/60 10/30 10/32 10/80 030 0.8 mm 035 0.9 mm#220179 #220179 #202926Dcep Dcen 100 10/60 10/45 10/40 10/20 10/50 024 0.6 mm #220179 030 0.8 mm #202926 035 0.9 mm 045 1.2 mmOverload Protection − Maintenance &TROUBLESHOOTINGRoutine Maintenance Drive Motor ProtectionReplacing Gun Contact Tip Changing Drive Roll Or Wire Inlet GuideTurn Off power before replacing contact tip To Reassemble Gun Cleaning Or Replacing Gun LinerDisconnect gun from unit Replacing Switch And/Or Head Tube Troubleshooting Table Trouble RemedyOM-225 311 − Electrical Diagram Circuit Diagram234 419-B − MIG Welding Gmaw Guidelines Typical MIG Process ConnectionsSelect Wire Size Typical MIG Process Control SettingsWire Recommendation Wire Speed Select VoltageHolding And Positioning Welding Gun Conditions That Affect Weld Bead Shape Gun Movement During Welding Poor Weld Bead CharacteristicsGood Weld Bead Characteristics Possible Causes Corrective Actions Troubleshooting − Excessive SpatterTroubleshooting − Porosity Troubleshooting − Incomplete Fusion Troubleshooting − Excessive PenetrationTroubleshooting − Lack Of Penetration Troubleshooting − Distortion Troubleshooting − Burn-ThroughTroubleshooting − Waviness Of Bead Flat & Horizontal1 Fillet Common MIG Shielding GasesApplication Optional Drive Rolls − Parts ListRecommended Spare Parts OptionsPage Service SupportOwner’s Record Miller Electric Mfg. Co

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