Miller Electric 301 G manual Overload Protection, Located behind front panel Tools Needed

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8-6. Overload Protection

Located behind front panel.

Tools Needed:

3/8 in

YStop engine.

.When a circuit breaker or fuse

opens, it usually indicates a more serious problem exists. Contact a Factory Authorized Service Agent.

1 Circuit Breaker CB5

CB5 protects the 24 volt ac output to Remote receptacle RC4. If CB5 opens, 24 volt ac output to RC4 stops.

2Fuse F1 (See Parts List)

3Fuse F2 (See Parts List) Remove cover.

Fuse F1 is located on power board PC7. F1 protects the exciter stator from overload. If F1 opens, weld and generator power output stops.

Fuse F2 is located behind front panel. F2 protects the 115 volt ac output to Remote receptacle RC4. If F2 opens, 115 volt ac output to RC4 stops.

Replace fuse(s) if open. Reinstall cover before operating unit.

4 Fuse F6 (See Parts List)

F6 protects the engine wiring system from overload. If F6 opens, the engine will not crank. Replace fuse if open.

802 851-A / Ref. 211 909

OM-4411 Page 33

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Contents Processes OM-4411207 283EDescription From Miller to You Table of Contents Options and Accessories Warranty Arc Welding Hazards Symbol UsageEngine Hazards Compressed Air Hazards California Proposition 65 Warnings Principal Safety StandardsEMF Information Radiation can cause interference− Consignes DE Sécurité − Lire Avant Utilisation Signification des symbolesUN Choc Électrique peut tuer LES Fumées ET LES GAZ peuvent être dangereuxDES Particules Volantes peuvent blesser les yeux LE Soudage peut provoquer un in- cendie ou une explosionDES Pièces Chaudes peuvent provoquer des brûlures graves LE Bruit peut affecter l’ouïeDES Organes Mobiles peuvent provoquer des blessures ’EXPLOSION DE LA Batterie peutLA Chaleur DU Moteur peut pro- voquer un incendie ’AIR Comprimé peut provoquer des blessuresInformation sur les champs électromagnétiques Principales normes de sécurité− Definitions Symbol DefinitionsWeld, Power, And Engine Specifications − SpecificationsDimensions, Weights, and Operating Angles DescriptionGenerator Power Curve Fuel Consumption While Welding And Using Generator PowerDuty Cycle Exceeding duty cycle can damage unit and void warranty100% Duty Cycle at 280 Amperes DC/CC CC/DC Stick Mode Stick And MIG Mode Volt-Ampere CurvesCV/DC MIG Mode DC TIG Mode Volt-Ampere Curves Installing Welding Generator − InstallationOil Engine Prestart ChecksFull Gasoline Do not overfill battery cells Activating The Dry Charge Battery If ApplicableRead and follow all instruc ChargerInstalling Exhaust Pipe Connecting The Battery+ − Connect negative − cable lastSelecting Weld Cable Sizes Connecting To Weld Output TerminalsSocket Information Remote Receptacle InformationReinstall side panel OM-4411 Adjusting Wire MIG Weld Puddle ConsistencyTools Needed 7/16 For wetter weld puddle for mild steelFront Panel Controls − Operating Welding GeneratorDescription Of Front Panel Controls Generator Power OutputEngine Speed Weld OutputProcess Switch Settings Process SwitchSwitch Setting Process Output On/Off Control Example Combination Remote Amperage Control Stick Remote Amperage/Voltage Control− Operating Auxiliary Equipment Hz Generator Power Receptacles And Circuit Breakers240 V 50 a AC Receptacle RC1 Circuit Breaker CB3Ceptacle RC3 Variable Frequency Hz Generator Power Receptacle RC3120 V 20 a Variable Frequency AC Receptacle RC3Receptacle Current Available in Amperes− Maintenance & Troubleshooting Maintenance Label Servicing Optional Spark Arrestor Oil Servicing Air CleanerFull Tools Needed Changing Engine Oil, Oil Filter, And Fuel FilterLocated behind front panel Tools Needed Overload ProtectionCircuit Breaker CB5 Welding TroubleshootingTrouble Remedy Variable Frequency Generator Power Receptacle RC3 Hz Generator Power Receptacles RC1 And RC2Engine Start Your Professional Welding Career Now Circuit Diagram For Welding Generator − Electrical Diagram211 395-C Selecting Equipment − Generator Power GuidelinesGrounding Generator To Truck Or Trailer Frame How Much Power Does Equipment Require? Grounding When Supplying Building SystemsEarth ground if supplying Amperes x Volts = WattsApproximate Power Requirements For Farm/Home Equipment Approximate Power Requirements For Industrial MotorsIndustrial Motors Rating Starting Watts Running Watts Farm/Home Equipment Rating Starting Watts Running WattsContractor Rating Starting Watts Running Watts Approximate Power Requirements For Contractor EquipmentHow Much Power Can Generator Supply? Power Required To Start MotorSingle-Phase Induction Motor Starting Requirements KVA/HP x HP x 1000 = Starting AmperageTypical Connections To Supply Standby Power Current Load Watts Amperes Selecting Extension Cord Use Shortest Cord PossibleMaterial Thickness Reference Chart − -3 41− -4 Main AssemblyBatt 182367 Panel Front w/Components -1Item Panel Front w/ComponentsPanel, Front w/Components Bracket w/Components Generator -1Item Your distributor also gives ServiceSupport For assistance in filing or settling claims, contact Miller Electric Mfg. CoYour distributor and/or equipment manufacturer’s Transportation Department