Miller Electric Big Blue 400 KX manual Fuel Consumption, Duty Cycle And Overheating

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4-4. Fuel Consumption

The curve shows typical fuel use under weld or power loads.

U.S. GAL/HR.

2.00

1.75

1.50

1.25

1.00

0.75

0.50

0.25IDLE

0.00

0 50 100 150 200 250 300 350 400 DC WELD AMPERES AT 100% DUTY CYCLE

217 509

4-5. Duty Cycle And Overheating

100% Duty Cycle At 250 Amperes

Continuous Welding

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

YExceeding duty cycle can damage unit and void warranty.

	1000
	800
AMPERES	600
	500
	400							CC
							CV	CC
	300						CV
WELD	300
	250
	200
	150
	100	10	15	20	25	30	40	50	60	80	100

% DUTY CYCLE

217 515

OM-4423 Page 14

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Contents OM-4423 215 178N ProcessesDescription File Engine DriveFrom Miller to You Table of Contents − Maintenance & Troubleshooting 8-1. Routine Maintenance Decrot6/05 DirectivesStandards Sound Level Information Decrotsound1/05Symbol Usage Arc Welding HazardsEngine Hazards Compressed Air Hazards Principal Safety Standards California Proposition 65 WarningsEMF Information Radiation can cause interferenceSignification des symboles − Consignes DE Sécurité − Lire Avant UtilisationUN Choc Électrique peut tuer LES Fumées ET LES GAZ peuvent être dangereuxLE Soudage peut provoquer un in- cendie ou une explosion DES Particules Volantes peuvent blesser les yeuxDES Pièces Chaudes peuvent provoquer des brûlures graves LE Bruit peut affecter l’ouïe’AIR Comprimé peut provoquer des blessures ’EMPLOI Excessif peutLE Surchauffement peut endom- mager le moteur électrique LES Étincelles Volantes risquent de provoquer des blessuresLE Soudage À L’ARC risque de provoquer des interférences Pour les moteurs à essencePour les moteurs diesel Boulevard, Rexdale, Ontario, Canada M9W 1R3 téléphoneStd − Definitions− 50 h Std Manufacturer’s Rating Label Symbols And Definitions Dimensions, Weights, And Operating Angles − SpecificationsWeld, Power, And Engine Specifications Stick Mode MIG ModeTIG Mode Volt-Ampere CurvesCurve shows typical fuel use under weld or power loads Exceeding duty cycle can damage unit and void warrantyFuel Consumption Duty Cycle And OverheatingAC Generator Power Curve Ac power curve shows the gen- erator power in amperes− Installation Installing Welding GeneratorMounting Welding Generator Stop engine and let cool Installing Exhaust PipeTools Needed 1/2 Activating The Dry Charge Battery If Applicable Connecting The BatteryDo not overfill battery cells Connect Negative − Cable LastCoolant Recovery Tank Engine Prestart ChecksFuel Do not use gasoline. Gasoline will damage engine OilConnecting To Weld Output Terminals Stick and TIG WeldingMIG and Fcaw Welding Stop engineSelecting Weld Cable Sizes 150 ft 200 ft 250 ft350 ft 400 ft 45 m 60 m 70 m 90 m 105 m 120 m Stop engine beforeConnecting To Remote 14 Receptacle RC14 SocketFront Panel Controls See Section StopDescription Of Front Panel Controls See Section Process/Contactor Switch On CC/CV Models Process/Contactor Switch SettingsLift-ArcStart Procedure Lift-Arc Start Method TouchDo not Strike Like a Match Lift-Arc t TIGRemote Voltage/Amperage Control − Operating Auxiliary Equipment Volt Receptacles− Maintenance & Troubleshooting Routine MaintenanceMaintenance Label Servicing Air Cleaner By the warrantyTo clean air filter Do not clean housing with air hoseServicing Engine Cooling System Inspecting And Cleaning Spark Arrestor MufflerStop engine and let cool. Reinstall cleanout plug Adjusting Engine Speed On Standard Models MaximumServicing Fuel And Lubrication Systems Stop engine and let cool After servicing, start engineTo change oil and filter To replace primary canister fuel filterPress button to reset breaker Overload ProtectionChecking Generator Brushes Replace Damaged BrushesHelp 25 Display Voltmeter/Ammeter Help DisplaysHelp 20 Display Welding TroubleshootingStandard Generator Power Engine Check for obstructed throttle solenoid − Electrical Diagrams Circuit Diagram For Welding Generator221 499-B Welding Generator − RUN-IN ProcedureWetstacking Run-In Procedure Using Load Bank Procedure at less thanStop engine Do not touch hot exhaust From flammables Do not PerformRun-In Procedure Using Resistance Grid Bank/gridFrom flammables Do not perform run-inGrounding Generator To Truck Or Trailer Frame − Generator Power GuidelinesSelecting Equipment Grounding When Supplying Building Systems How Much Power Does Equipment Require?Earth ground if supplying Amperes x Volts = WattsApproximate 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 WattsApproximate Power Requirements For Contractor Equipment Contractor Rating Starting Watts Running WattsPower Required To Start Motor How Much Power Can Generator Supply?Single-Phase Induction Motor Starting Requirements KVA/HP x HP x 1000 = Starting AmperageTypical Connections To Supply Standby Power Selecting Extension Cord Use Shortest Cord Possible Current Load Watts Amperes− Parts List 103 − −5 104 − −3 96− −2 102 101 10071− −4 3031 5756Dia Part Description Quantity Mkgs Dia Part Description Quantity 213600 Panel, Front w/Components Panel, Front w/Components -1ItemFUEL/HM Control Panel Generator Generator -1ItemRectifier Assembly Wiring Harnesses Support ServiceYour distributor also gives 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