Miller Electric Big 40 WG manual Table of Contents

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WARNING

This product, when used for welding or cutting, produces fumes or gases which contain chemicals known to the State of California to cause birth defects and, in some cases, cancer. (California Health & Safety Code Section 25249.5 et seq.)

WARNING

Battery posts, terminals and related accessories contain lead and lead compounds, chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling.

WARNING

The engine exhaust from this product contains chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.

The following terms are used interchangeably throughout this manual:

Stick = SMAW

TIG = GTAW

MIG = GMAW

TABLE OF CONTENTS

SECTION 1 – SAFETY PRECAUTIONS - READ BEFORE USING

1

1-1.

Symbol Usage

1

1-2.

Arc Welding Hazards

1

1-3.

Engine Hazards

2

1-4. Additional Symbols For Installation, Operation, And Maintenance

3

1-5.

Principal Safety Standards

4

1-6.

EMF Information

4

SECTION 1 – CONSIGNES DE SÉCURITÉ – LIRE AVANT UTILISATION

5

1-1.

Signification des symboles

5

1-2.

Dangers relatifs au soudage à l’arc

5

1-3.

Dangers existant en relation avec le moteur

6

1-4. Dangers supplémentaires en relation avec l’installation, le fonctionnement

 

 

et la maintenance

7

1-5.

Principales normes de sécurité

8

1-6.

Information sur les champs électromagnétiques

8

SECTION 2 – DEFINITIONS

9

2-1.

Symbols And Definitions

9

SECTION 3 – SPECIFICATIONS

9

3-1.

Weld, Power, And Engine Specifications

9

3-2. Dimensions, Weights, And Operating Angles

10

3-3. Volt-Ampere Curves For CC Models

10

3-4. Volt-Ampere Curves for CC/CV Models

11

3-5.

Fuel Consumption

12

3-6. Duty Cycle And Overheating

12

3-7.

AC Auxiliary Power Curve

13

3-8. Optional AC Power Plant Curves

13

SECTION 4 – INSTALLATION

14

4-1.

Installing Welding Generator (See Sections 4-2 And 4-3)

14

4-2.

Using Lifting Eye

14

4-3.

Mounting Welding Generator

15

4-4.

Installing Exhaust Pipe

15

4-5. Activating The Dry Charge Battery (If Applicable)

16

4-6.

Connecting The Battery

17

4-7.

Engine Prestart Checks

18

4-8.

Connecting To Weld Output Terminals

19

4-9.

Selecting Weld Cable Sizes

19

4-10.

Connecting To Remote Amperage Adjust Receptacle RC13 On CC Models

20

4-11.

Connecting To Remote 14 Receptacle RC14 On CC/CV Models

21

SECTION 5 – OPERATING WELDING GENERATOR – CC MODELS

22

5-1. Front Panel Controls For CC Models (See Section 5-2)

22

5-2. Description Of Front Panel Controls For CC Models (See Section 5-1)

23

5-3.

Remote Amperage Control On CC Models (Optional)

24

SECTION 6 – OPERATING WELDING GENERATOR – CC/CV MODELS

26

6-1. Front Panel Controls For CC/CV Models (See Section 6-2)

26

6-2. Description Of Front Panel Controls For CC/CV Models (See Section 6-1)

27

6-3. Process/Contactor Switch On CC/CV Models

28

6-4.

Remote Voltage/Amperage Control On CC/CV Models (Optional)

29

SECTION 7 – OPERATING AUXILIARY EQUIPMENT

30

7-1.

120 Volt And 240 Volt Duplex Receptacles

30

7-2.

Connecting To Optional Auxiliary Power Plant (CC/CV Models Only)

31

7-3.

Optional Auxiliary Power Receptacles

32

(Continued)

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Contents OM-4405 ProcessesDescription From Miller to You Table of Contents Options and Accessories Warranty ARC Rays can burn eyes and skin Symbol UsageArc Welding Hazards Electric Shock can killEngine Hazards Engine Heat can cause fire Battery Explosion can BlindMoving Parts can cause injury Engine Exhaust Gases can killARC Welding can cause interference Principal Safety StandardsEMF Information Radiation can cause interferenceLES Fumé ES ET LES GAZ peuvent ê tre dangereux Signification des symbolesConsignes DE SÉ Curité Lire Avant Utilisation UN Choc É Lectrique peut tuerLE Bruit peut affecter l’ouïe LE Soudage peut provoquer un in- cendie ou une explosionDES Particules Volantes peuvent blesser les yeux DES PIÈ CES Chaudes peuvent provoquer des brû lures gravesLA Chute DE L’APPAREIL peut blesser DES Organes Mobiles peuvent provoquer des blessures’EXPLOSION DE LA Batterie peut LA Chaleur DU Moteur peut pro- voquer un incendieConsignes relatives aux stimulateurs cardiaques Principales normes de sé curitéInformation sur les champs é lectromagné tiques LE Soudage À L’ARC risque de provoquer des interfé rencesDefinitions SpecificationsSymbols And Definitions Weld, Power, And Engine SpecificationsVolt-Ampere Curves For CC Models Dimensions, Weights, And Operating AnglesVolt-Ampere Curves for CC/CV Models Stick ModeMIG Mode TIG ModeDuty Cycle And Overheating Fuel Consumption15 kVA/kW Three-Phase Auxiliary Power Plant No Weld Load AC Auxiliary Power CurveOptional AC Power Plant Curves 12 kVA/kW Single-Phase Auxiliary Power Plant No Weld LoadInstallation Installing Welding Generator See Sections 4-2Using Lifting Eye To Bolt Unit In Place Installing Exhaust PipeMounting Welding Generator Welding Unit In Place Bolting Unit In PlaceCharger Activating The Dry Charge Battery If ApplicableDo not overfill battery cells Read and follow all instrucConnect Negative Cable Last Connecting The BatteryOil Coolant Recovery TankEngine Prestart Checks FuelSelecting Weld Cable Sizes Connecting To Weld Output TerminalsRef 862-A / 048 720-K / 802 Socket Information Connecting To Remote 14 Receptacle RC14 On CC/CV ModelsFront Panel Controls For CC Models See Section Operating Welding Generator CC ModelsTo Start Engine Indicator LightsDo not switch under load Engine Starting ControlsRemote Amperage Control On CC Models Optional OM-4405 Front Panel Controls For CC/CV Models See Section Operating Welding Generator CC/CV ModelsVoltage/Amperage Adjust Switch And Remote 14 Receptacle Use switch to select weld amperage rangeRunning Process/Contactor Switch On CC/CV ModelsProcess/Contactor Switch Settings Process/Contactor SwitchSet Remote Remote Voltage/Amperage Control On CC/CV Models OptionalSet Remote Set Range ProcessVolt And 240 Volt Receptacles Operating Auxiliary EquipmentSingle-Phase Power Connection Single-Phase Auxiliary Power Three-Phase Power ConnectionRear Of Panel Optional Auxiliary Power Receptacles 240 V 15 a AC South African Receptacle RC1Circuit Breaker CB2 Circuit Breaker CB3 Maintenance Label Maintenance & Troubleshooting250 h Routine Maintenance50 h 100 hStop engine and let cool Inspecting And Cleaning Optional Spark Arrestor Muffler500 h 1000 hServicing Air Cleaner Maximum Adjusting Engine Weld/Power SpeedAdjusting Engine Idle Speed Engine SpeedNo Load Tools Needed 1/2 Adjusting Governor SensitivityServicing Fuel And Lubrication Systems Overload Protection Press button to reset breaker20s Start Engine With No Load Applied Diagnosing Causes Of Engine Fault ShutdownsDiagnostic Checks While Running Fault ConditionWelding CC Models TroubleshootingRepair or replace wire feeder Welding CC/CV ModelsTacle see Section Standard Auxiliary Power Optional Auxiliary Power PlantEngine Or coolant temperature is too high see Sections 4-7 Wiring harness and componentsShutdown switch is released Out Ant temperature is too high see Sections 4-7OM-4405 Circuit Diagram For CC Welding Generator Electrical Diagrams201 991-A Circuit Diagram For CC/CV Welding Generator 201 992-A Auxiliary Power Guidelines Selecting EquipmentGrounding 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 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 PossibleOM-4405 Parts List 107 106 101 105 103CC only 104 -4 or See FIG 108Dia Part Description Dia Part Description Mkgs Quantity Control Box Assembly CC Models Control Box Assembly CC Models -1 Item Control Box Assembly CC/CV Models 177 CONN, body 5 terminal to engine control switch S1 193 Panel, Front w/Components CC Models MS1 Panel, Front w/Components CC/CV Models -1 Item Panel, Front w/Components CC/CV ModelsPC6 192 Generator Generator -1 Item Main Rectifier Assembly Service Your distributor also givesSupport Miller Electric Mfg. Co Owner’s Record

Big 40 WG specifications

The Miller Electric Big 40 WG is a versatile and powerful welding generator designed to meet the demands of professionals in the field. Known for its reliability and robust performance, the Big 40 WG is the ideal choice for those who require both welding capabilities and a portable power source.

One of the standout features of the Big 40 WG is its ability to produce a substantial output of up to 10,000 watts of continuous power. This ensures that users have enough capacity to run various tools and equipment, making it perfect for job sites where electricity may not readily be available. The generator is powered by a Kohler Command PRO engine, renowned for its durability and efficiency, ensuring that users can depend on its performance even in the toughest conditions.

The machine offers a dual capability for electric welding and stick welding, which enables users to tackle a variety of applications, from light maintenance tasks to heavy-duty industrial jobs. The Big 40 WG features an easy-to-use control panel, equipped with clear indicators and outputs that simplify operation. Whether you need to switch between welding modes or adjust settings, the intuitive design allows for quick responses and seamless operation.

In terms of technology and innovation, the Big 40 WG includes advanced features such as an automatic idle speed adjustment, which increases fuel efficiency and reduces wear on the engine. This technology not only helps save on fuel costs but also minimizes noise levels, providing a more pleasant working environment.

Another key characteristic of the Big 40 WG is its portability. Engineered with a lightweight frame and built-in lifting hooks, it is easy to transport and maneuver, making it an excellent choice for on-site work. The rugged construction ensures that the generator can withstand the rigors of outdoor use, enhancing its lifespan and reliability.

For those in search of a welding generator that delivers on performance, functionality, and portability, the Miller Electric Big 40 WG stands out as a preferred option. Its combination of powerful output, advanced technologies, and user-friendly features makes it a valuable tool for professionals across various industries, ensuring they can complete their jobs effectively and efficiently, no matter where they are.
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