Electrical Diagrams | Miller Electric Bobcat 225 specification

SECTION 12 − ELECTRICAL DIAGRAMS

Figure 12-1. Circuit Diagram For Welding Generator

OM-4434 Page 48

Image 52

Miller Electric Bobcat 225 manual Electrical Diagrams, Circuit Diagram For Welding Generator

Contents

OM-4434 File Engine Drive From Miller to You Table of Contents 10-1 10-210-3 11-1 Symbol Usage Arc Welding HazardsElectric Shock can kill HOT Parts can cause severe burns Fumes and Gases can be hazardous Buildup of GAS can injure or killARC Rays can burn eyes and skin Welding can cause fire or explosion Engine Hazards Compressed Air Hazards Welding Wire can cause injury HOT Parts can cause burns and injuryFire or Explosion hazard Falling Unit can cause injury Principal Safety Standards California Proposition 65 WarningsEMF Information Radiation can cause interference Signification des symboles − Consignes DE Sécurité − Lire Avant UtilisationUN Choc Électrique peut tuer Indique des instructions spécifiques LES Fumées ET LES GAZ peuvent être dangereux DES Pièces Chaudes peuvent provoquer des brûlures gravesLE Soudage peut provoquer un in cendie ou une explosion ’EXPLOSION DE LA Batterie peu LE Bruit peut affecter l’ouïeDES Organes Mobiles peuvent pro voquer des blessures ’AIR Comprimé peut provoquer des blessures LA Chaleur DU Moteur peut pro- voquer un incendieRisque D’INCENDIE OU D’EXPLO- Sion LE Surchauffement peut endom- mager le moteur électrique DES Organes Mobiles peuvent provoquer des blessuresLES Fils DE Soudage peuvent provoquer des blessures ’EMPLOI Excessif peut Principales normes de sécurité Proposition californienne 65 AvertissementsInformation EMF − Specifications Symbol DefinitionsWeld, Power, and Engine Specifications − Definitions Dimensions, Weights, and Operating Angles Dimensions For Units With Optional Running GearRobin-PoweredUnit 560 lb 254 kg Dimensions Fuel Consumption Robin-Powered Units Fuel Consumption Kohler-Powered Units For CC/DC Mode For CV/DC Mode For CC/AC ModeVolt-Ampere Curves Generator Power Curve Duty Cycle − Installation Installing Welding GeneratorMounting Do not use flexible mounts Grounding Oil Check Engine Prestart Checks Robin-Powered UnitsOil Engine Prestart Checks Kohler-Powered Units Installing Exhaust Pipe Connecting Or Replacing the BatteryConnecting The Battery Connect negative − cable last Replacing The Battery Connecting to Weld Output Terminals Tools Needed Correct InstallationStop engine Work Weld Output Terminal 150 ft 200 ft 250 ft Selecting Weld Cable Sizes350 ft 400 ft 45 m 60 m 70 m 90 m 105 m 120 m OM-4434 Engine Control Switch Place switch in Run position to operate most MIG equipmentCoarse Range Switch − Operating the Welding Generator Cold Weather Engine Operation InfrequentlyLoaded Frequently Loaded Typical Stick Welding Connections And Control Settings Electrode Solid Wire Applications Typical MIG Welding Connections And SettingsBe sure to use the correct size weld cables see Section Self-Shielded Flux Core Wire Applications Fine Control, Weld Process switch Settings Typical Settings For Set wire feed speed between 240-270 ipm OM-4434Material Work − Operating Auxiliary Equipment Standard Receptacles Optional Generator Power Receptacles Breaker trips Simultaneous Weld And Power Wiring Optional 240 Volt PlugCurrent Available in Amperes 240 Receptacle − Maintenance ROBIN-POWERED Units Maintenance Label Robin-Powered Units Routine Maintenance Robin-Powered Units Stop engine before maintaining100 200 Servicing Optional Spark Arrestor Robin-Powered Units Servicing Air Cleaner Robin-Powered UnitsStop engine and let cool Close valve and valve cap Before adding oilRunning engine Oil Fill Adjusting Engine Speed Robin-Powered Units Idle Speed AdjustmentTurn idle speed screw for fine adjustments Weld/Power Speed Adjustment Overload Protection Robin-Powered Units Stop engine. Disconnect negative − battery cable − Maintenance − KOHLER-POWERED Units Maintenance Label Kohler-Powered Units Routine Maintenance Kohler-Powered Units Hours Nl Weld Cables ~ Slip Rings Nl Brushes OM-4434 Servicing Air Cleaner Kohler−Powered Units 2 ID x 7 in Hose Oil Filter Stop engine and let cool Oil Drain ValveFull Before adding oil Running engine Adjusting Engine Speed Kohler-Powered Units Turn idle speed screw for fine ad- justments Servicing Optional Spark Arrestor Kohler-Powered Units Overload Protection Kohler-Powered UnitsIf a fuse opens, it usually indi − Troubleshooting Welding TroubleshootingGenerator Power Troubleshooting Trouble Remedy Engine Troubleshooting − Parts List Control switch S2, and throttle solenoid TS1Recommended Spare Parts Recommended Spare Parts − Electrical Diagrams Circuit Diagram For Welding Generator 228 461-A Selecting Equipment − Generator Power GuidelinesGrounding Generator To Truck Or Trailer Frame Grounding When Supplying Building Systems How Much Power Does Equipment Require? Approximate Power Requirements For Industrial Motors Approximate Power Requirements For Farm/Home EquipmentIndustrial Motors Rating Starting Watts Running Watts Farm/Home Equipment Rating Starting Watts Running Watts Approximate Power Requirements For Contractor Equipment Contractor Rating Starting Watts Running Watts Power Required To Start Motor How Much Power Can Generator Supply?Single-Phase Induction Motor Starting Requirements KVA/HP x HP x 1000 / Volts = Starting Amperage Typical Connections To Supply Standby Power Selecting Extension Cord Use Shortest Cord Possible Cord Lengths for 120 Volt LoadsCurrent Load Watts Amperes Cord Lengths for 240 Volt Loads Stick Welding Procedure − Stick Welding Smaw Guidelines Striking an Arc − Scratch Start Technique Electrode and Amperage Selection ChartStriking an Arc − Tapping Technique Poor Weld Bead Characteristics Good Weld Bead CharacteristicsPositioning Electrode Holder 10-30 9090 End View of Work Angle Conditions That Affect Weld Bead Shape Electrode Movement During Welding Butt Joints Lap JointTee Joint 16 in 30 1.6 mm Tack Welds Troubleshooting − Porosity Troubleshooting − Excessive SpatterWeld Test Possible Causes Corrective Actions Troubleshooting − Lack Of Penetration Troubleshooting − Incomplete FusionTroubleshooting − Excessive Penetration Troubleshooting − Waviness Of Bead Troubleshooting − Burn-ThroughTroubleshooting − Distortion − MIG Welding Gmaw Guidelines Holding And Positioning Welding Gun Short Normal Long Push Perpendicular DragSlow Normal Fast Gun Movement During Welding 15-8 Troubleshooting − Porosity 15-7 Troubleshooting − Excessive Spatter15-9 Troubleshooting − Excessive Penetration Fusion between weld metal Lack Of Penetration − shallowImproper joint preparation Unsteady hand Support hand on solid surface or use two hands Base metal to move Application Common MIG Shielding GasesFillet Page Your distributor also gives ServiceSupport To locate a Distributor or Service Agency visit Miller Electric Mfg. CoFor assistance in filing or settling claims, contact Your distributor and/or equipment manufacturer’s