Connecting To Weld Output Terminals | Miller Electric Big Blue 251D

5-5. Installing Ether Cylinder (Optional Ether Starting Aid)

1

2

3

4

5

6

YStop engine.

YImproper handling or expo- sure to ether can harm your health. Follow manufactur- er’s safety instructions on cylinder.

YDo not use Ether Starting Aid while engine is running.

Open side door(s).

1Ether Cylinder

2Nozzle

Remove cover and clean cylinder nozzle.

3Clamp

4Fitting

5Cap

6Valve

Remove cap and clean fitting. Install cylinder on fitting. Tighten clamp.

.After installing cylinder, wait at

least 10 minutes before using to let ether particles settle and prevent atomizer plugging.

Put cap on fitting when cylinder is removed.

ether1 12/96 − 153 382-A / Ref. 206 029

5-6. Connecting To Weld Output Terminals

3

2

Open left side door.

1 Bracket

Route cables through bracket. 2 Positive (+) Weld Output

		Terminal
	3	Negative (−) Weld Output Ter-
		minal
	For Stick welding Direct Current
	Electrode Positive (DCEP), con-
	nect work cable to (−) terminal and
	electrode holder cable to (+)
	terminal.
	For Direct Current Electrode Nega-
	tive	(DCEN),	reverse cable
	connections.
	If equipped with optional polarity
	switch, connect		electrode holder
	cable to Electrode (−) terminal and
	work cable to Work (+) terminal.
	For FCAW welding, connect work
	cable to (−) terminal and wire feeder
	cable to (+) terminal.
1	Close door.

Tools Needed:

3/4 in	Ref. 800 162-A

OM-480 Page 16

Image 20

Miller Electric Big Blue 251D Installing Ether Cylinder Optional Ether Starting Aid, Connecting To Weld Output Terminals

Contents

Processes DescriptionVisit our website at OM-480128 576AC January Engine Driven Welding Generator From Miller to You Table of Contents Options and Accessories Warranty Symbol Usage Arc Welding Hazards Engine Hazards Compressed Air Hazards 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 LES Fumées ET LES GAZ peuvent être dangereux LE 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 ’EXPLOSION DE LA Batterie peut DES Organes Mobiles peuvent provoquer des blessuresLA Chaleur DU Moteur peut pro- voquer un incendie ’AIR Comprimé peut provoquer des blessures Principales normes de sécurité Information sur les champs électromagnétiques Symbols And Definitions − Definitions Dimensions, Weights, And Operating Angles − SpecificationsWeld, Power, And Engine Specifications Curve shows typical fuel use under weld or power loads Exceeding duty cycle can damage unit and void warrantyFuel Consumption Duty Cycle And Overheating AC Generator Power Volt-Ampere Curves Optional AC Power Plant Curves Connecting The Battery − InstallationInstalling Welding Generator Installing Muffler Pipe Engine Prestart ChecksStop engine and let cool Fuel Do not use gasoline. Gasoline Installing Ether Cylinder Optional Ether Starting Aid Connecting To Weld Output Terminals Selecting Weld Cable Sizes 150 ft 200 ft 250 ft350 ft 400 ft 45 m 60 m 70 m 90 m 105 m 120 m Put terminals − Operating the Welding Generator Controls See Section Description Of Front Panel Controls See Section Remote A/V ControlStop engine and fix trouble if either light goes on Do not use Ether if engine is running X 15 a + 120 V x 10 a = 3.0 kVA/kW OM-480 − Operating Auxiliary EquipmentVolt Duplex And Optional Gfci Receptacles Volt Duplex Receptacle Optional 240 V 15 a AC Receptacle RC1Circuit Breakers CB1 And CB2 X 10 a + 120 V x 5 a = 3.0 kVA/kW Connecting Optional AC Power Plant 240 Volt Twistlock Receptacle Optional − Maintenance and Troubleshooting Maintenance Label Servicing Air Cleaner Servicing Fuel And Lubrication Systems To change oil and filterTo replace primary fuel filter To replace secondary fuel filter Models With Automatic Idle Optional Adjusting Engine SpeedStandard Models Overload Protection Servicing Optional Ether Starting Aid Full Empty Inspecting And Cleaning Optional Spark Arrestor TroubleshootingStop engine and let cool. Reinstall cleanout plug Welding Generator Power Check connections to ac power plant see SectionEngine Maximum see Section − Electrical Diagram Circuit Diagram For Welding Generator 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 Perform Run-In Procedure Using Resistance Grid Bank/gridFrom flammables Do not perform run-in Grounding 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 = Watts 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 = Starting Amperage Typical Connections To Supply Standby Power Work like a Pro Selecting Extension Cord Use Shortest Cord Possible Current Load Watts Amperes OM-480 − Parts List 125 124 123 122120 121 117 116 2526 126 Dia Part Description Quantity Mkgs 128 Panel, Front w/Components -1Item 111 Panel, Front w/Components -1Item 111 Cont’d Generator Generator -1Item 114 IncludesPage Page 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