Miller Electric Big Blue 400 KX manual Checking Generator Brushes, Replace Damaged Brushes

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8-9. Checking Generator Brushes

Y Stop engine and let cool.

1 Generator Brush With Spring

Mark and disconnect leads at brush hold- er cap. Remove brushes.

Replace brushes if damaged or if brush material is at or near minimum length.

5/16 in. (8 mm) Minimum Length

9/16 in. (14.3 mm)

New Length

Replace

Damaged Brushes

Ref 2114 778−D / S−0233−A

Notes

MATERIAL THICKNESS REFERENCE CHART

24 Gauge (.025 in)

22 Gauge (.031 in)

20 Gauge (.037 in)

18 Gauge (.050 in)

16 Gauge (.063 in)

14 Gauge (.078 in) 1/8 in (.125 in)

3/16 in (.188 in)

1/4 in (.25 in)

5/16 in (.313 in)

3/8 in (.375 in)

1/2 in (.5 in)

OM-4423 Page 37

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Contents File Engine Drive OM-4423 215 178NProcesses DescriptionFrom Miller to You Table of Contents − Maintenance & Troubleshooting 8-1. Routine Maintenance Standards DirectivesDecrot6/05 Decrotsound1/05 Sound Level InformationArc Welding Hazards Symbol UsageEngine Hazards Compressed Air Hazards Radiation can cause interference Principal Safety StandardsCalifornia Proposition 65 Warnings EMF InformationLES Fumées ET LES GAZ peuvent être dangereux Signification des symboles− Consignes DE Sécurité − Lire Avant Utilisation UN Choc Électrique peut tuerLE Bruit peut affecter l’ouïe LE Soudage peut provoquer un in- cendie ou une explosionDES Particules Volantes peuvent blesser les yeux DES Pièces Chaudes peuvent provoquer des brûlures gravesLES Étincelles Volantes risquent de provoquer des blessures ’AIR Comprimé peut provoquer des blessures’EMPLOI Excessif peut LE Surchauffement peut endom- mager le moteur électriqueBoulevard, Rexdale, Ontario, Canada M9W 1R3 téléphone LE Soudage À L’ARC risque de provoquer des interférencesPour les moteurs à essence Pour les moteurs diesel− 50 h Std − DefinitionsStd Manufacturer’s Rating Label Symbols And Definitions Weld, Power, And Engine Specifications − SpecificationsDimensions, Weights, And Operating Angles Volt-Ampere Curves Stick ModeMIG Mode TIG ModeDuty Cycle And Overheating Curve shows typical fuel use under weld or power loadsExceeding duty cycle can damage unit and void warranty Fuel ConsumptionAc power curve shows the gen- erator power in amperes AC Generator Power CurveInstalling Welding Generator − InstallationMounting Welding Generator Tools Needed 1/2 Installing Exhaust PipeStop engine and let cool Connect Negative − Cable Last Activating The Dry Charge Battery If ApplicableConnecting The Battery Do not overfill battery cellsOil Coolant Recovery TankEngine Prestart Checks Fuel Do not use gasoline. Gasoline will damage engineStop engine Connecting To Weld Output TerminalsStick and TIG Welding MIG and Fcaw WeldingStop engine before Selecting Weld Cable Sizes150 ft 200 ft 250 ft 350 ft 400 ft 45 m 60 m 70 m 90 m 105 m 120 mSocket Connecting To Remote 14 Receptacle RC14Stop Front Panel Controls See SectionDescription Of Front Panel Controls See Section Process/Contactor Switch Settings Process/Contactor Switch On CC/CV ModelsLift-Arc t TIG Lift-ArcStart ProcedureLift-Arc Start Method Touch Do not Strike Like a MatchRemote Voltage/Amperage Control Volt Receptacles − Operating Auxiliary EquipmentRoutine Maintenance − Maintenance & TroubleshootingMaintenance Label Do not clean housing with air hose Servicing Air CleanerBy the warranty To clean air filterStop engine and let cool. Reinstall cleanout plug Inspecting And Cleaning Spark Arrestor MufflerServicing Engine Cooling System Maximum Adjusting Engine Speed On Standard ModelsTo replace primary canister fuel filter Servicing Fuel And Lubrication SystemsStop engine and let cool After servicing, start engine To change oil and filterOverload Protection Press button to reset breakerReplace Damaged Brushes Checking Generator BrushesHelp 20 Display Voltmeter/Ammeter Help DisplaysHelp 25 Display Standard Generator Power TroubleshootingWelding Engine Check for obstructed throttle solenoid Circuit Diagram For Welding Generator − Electrical Diagrams221 499-B Wetstacking − RUN-IN ProcedureWelding Generator From flammables Do not Perform Run-In Procedure Using Load BankProcedure at less than Stop engine Do not touch hot exhaustDo not perform run-in Run-In Procedure Using Resistance GridBank/grid From flammablesSelecting Equipment − Generator Power GuidelinesGrounding Generator To Truck Or Trailer Frame Amperes x Volts = Watts Grounding When Supplying Building SystemsHow Much Power Does Equipment Require? Earth ground if supplyingFarm/Home Equipment Rating Starting Watts Running Watts Approximate Power Requirements For Industrial MotorsApproximate Power Requirements For Farm/Home Equipment Industrial Motors Rating Starting Watts Running WattsContractor Rating Starting Watts Running Watts Approximate Power Requirements For Contractor EquipmentKVA/HP x HP x 1000 = Starting Amperage Power Required To Start MotorHow Much Power Can Generator Supply? Single-Phase Induction Motor Starting RequirementsTypical Connections To Supply Standby Power Current Load Watts Amperes Selecting Extension Cord Use Shortest Cord Possible103 − −5 104 − −3 96− −2 102 101 100 − Parts List3031 5756 71− −4Dia Part Description Quantity Mkgs Dia Part Description Quantity 213600 Panel, Front w/Components -1Item Panel, Front w/ComponentsFUEL/HM Control Panel Generator -1Item GeneratorRectifier Assembly Wiring Harnesses Your distributor also gives ServiceSupport Your distributor and/or equipment manufacturer’s To locate a Distributor or Service Agency visitMiller Electric Mfg. Co For assistance in filing or settling claims, contact