Miller Electric Big Blue 251D Run-In Procedure Using Load Bank, From flammables Do not Perform

Page 38

10-2. Run-In Procedure Using Load Bank

			Y Stop engine.
			Y Do not touch hot exhaust
				pipe, engine parts, or load
				bank/grid.
4			Y Keep exhaust and pipe away
4				from flammables.
				from flammables.
		2	Y Do not		perform	run-in
		2		procedure at less than 20
			1	volts weld output and do not
			1	exceed duty cycle or equip-
				ment damage may occur.
			1	Load Bank
			Turn all load bank switches Off. If
			needed, connect load bank to 115
			volts ac wall receptacle or genera-
			tor auxiliary power receptacle.
			2	Welding Generator
			Place A/V range switch in maxi-
			mum position, A/V control in mini-
			mum position, and Output Selector
			switch (if present) in either DC
			position.
			3	Weld Cables
			Connect load bank to generator
			weld output terminals using proper
			size weld cables with correct
			connectors.		Observe	correct
			polarity.
			Start engine and run for several
	3		minutes.
	3		Set load bank switches and then
			Set load bank switches and then
			adjust generator A/V control so load
			equals rated voltage and current of
			generator (see nameplate, rating
			label, or the specifications section
			in this manual).
			Check generator and load bank
			meters after first five minutes then
			every fifteen minutes to be sure
			generator is loaded properly.
			. Check oil level frequently dur-
				ing run-in; add oil if needed.
			After one hour (minimum) place A/V
			control in minimum position, then
			turn off load bank to remove load.
			Run engine several minutes at no
			load.
			Y Stop engine and let cool.
			4	Engine Exhaust Pipe
			Repeat procedure if wetstacking is
			present.

S-0683

OM-480 Page 34

Image 38

Contents Visit our website at OM-480128 576AC January ProcessesDescription Engine Driven Welding GeneratorFrom Miller to You Table of Contents Options and Accessories Warranty Symbol Usage Arc Welding HazardsEngine Hazards Compressed Air Hazards EMF Information Principal Safety StandardsCalifornia Proposition 65 Warnings Radiation can cause interferenceUN Choc Électrique peut tuer Signification des symboles− Consignes DE Sécurité − Lire Avant Utilisation LES Fumées ET LES GAZ peuvent être dangereuxDES Pièces Chaudes peuvent provoquer des brûlures graves LE Soudage peut provoquer un in- cendie ou une explosionDES Particules Volantes peuvent blesser les yeux LE Bruit peut affecter l’ouïeLA Chaleur DU Moteur peut pro- voquer un incendie ’EXPLOSION DE LA Batterie peutDES Organes Mobiles peuvent provoquer des blessures ’AIR Comprimé peut provoquer des blessuresPrincipales normes de sécurité Information sur les champs électromagnétiquesSymbols And Definitions − DefinitionsDimensions, Weights, And Operating Angles − SpecificationsWeld, Power, And Engine Specifications Fuel Consumption Curve shows typical fuel use under weld or power loadsExceeding duty cycle can damage unit and void warranty Duty Cycle And OverheatingAC Generator Power Volt-Ampere CurvesOptional AC Power Plant Curves Connecting The Battery − InstallationInstalling Welding Generator Stop engine and let cool Installing Muffler PipeEngine Prestart Checks Fuel Do not use gasoline. GasolineInstalling Ether Cylinder Optional Ether Starting Aid Connecting To Weld Output Terminals350 ft 400 ft 45 m 60 m 70 m 90 m 105 m 120 m Selecting Weld Cable Sizes150 ft 200 ft 250 ft Put terminals− Operating the Welding Generator Controls See SectionStop engine and fix trouble if either light goes on Description Of Front Panel Controls See SectionRemote A/V Control Do not use Ether if engine is runningX 15 a + 120 V x 10 a = 3.0 kVA/kW OM-480 − Operating Auxiliary EquipmentVolt Duplex And Optional Gfci Receptacles Circuit Breakers CB1 And CB2 Volt Duplex Receptacle Optional240 V 15 a AC Receptacle RC1 X 10 a + 120 V x 5 a = 3.0 kVA/kWConnecting Optional AC Power Plant 240 Volt Twistlock Receptacle Optional − Maintenance and Troubleshooting Maintenance Label Servicing Air Cleaner To replace primary fuel filter Servicing Fuel And Lubrication SystemsTo change oil and filter To replace secondary fuel filterModels With Automatic Idle Optional Adjusting Engine SpeedStandard Models Overload Protection Servicing Optional Ether Starting Aid Full EmptyStop engine and let cool. Reinstall cleanout plug Inspecting And Cleaning Optional Spark ArrestorTroubleshooting WeldingEngine Generator PowerCheck connections to ac power plant see Section Maximum see Section− Electrical Diagram Circuit Diagram For Welding GeneratorWelding Generator − RUN-IN ProcedureWetstacking Stop engine Do not touch hot exhaust Run-In Procedure Using Load BankProcedure at less than From flammables Do not PerformFrom flammables Run-In Procedure Using Resistance GridBank/grid Do not perform run-inGrounding Generator To Truck Or Trailer Frame − Generator Power GuidelinesSelecting Equipment Earth ground if supplying Grounding When Supplying Building SystemsHow Much Power Does Equipment Require? Amperes x Volts = WattsIndustrial Motors Rating Starting Watts Running Watts Approximate Power Requirements For Industrial MotorsApproximate Power Requirements For Farm/Home Equipment Farm/Home Equipment Rating Starting Watts Running WattsApproximate Power Requirements For Contractor Equipment Contractor Rating Starting Watts Running WattsSingle-Phase Induction Motor Starting Requirements Power Required To Start MotorHow Much Power Can Generator Supply? KVA/HP x HP x 1000 = Starting AmperageTypical Connections To Supply Standby Power Work like a ProSelecting Extension Cord Use Shortest Cord Possible Current Load Watts AmperesOM-480 120 121 117 − Parts List125 124 123 122 1162526 126 Dia Part Description Quantity Mkgs 128 Panel, Front w/Components -1Item 111Panel, Front w/Components -1Item 111 Cont’d Generator Generator -1Item 114 IncludesPage Page Support ServiceYour distributor also gives For assistance in filing or settling claims, contact To locate a Distributor or Service Agency visitMiller Electric Mfg. Co Your distributor and/or equipment manufacturer’s