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OM-4435 218 759AD 2011−05 Processes Stick (SMAW) Welding TIG (GTAW) Welding MIG (GMAW) Welding Flux Cored (FCAW) Welding Air Carbon Arc (CAC-A) Cutting and Gouging Description Engine Driven Welding Generator Big Blue 400 CX File: Engine Drive Visit our website at www.MillerWelds.com...
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We know you don’t have time to do it any other way. That’s why when Niels Miller first started building arc welders in 1929, he made sure his products offered long-lasting value and superior quality.
DECLARATION OF CONFORMITY for European Community (CE marked) products. MILLER Electric Mfg. Co., 1635 Spencer Street, Appleton, WI 54914 U.S.A. declares that the product(s) identified in this declaration conform to the essential requirements and provisions of the stated Council Directive(s) and Standard(s).
SECTION 1 − SAFETY PRECAUTIONS − READ BEFORE USING rom_2011−04 Protect yourself and others from injury — read, follow, and save these important safety precautions and operating instructions. 1-1. Symbol Usage DANGER! − Indicates a hazardous situation which, if Indicates special instructions. not avoided, will result in death or serious injury.
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D Do not weld on closed containers such as tanks, drums, or pipes, FUMES AND GASES can be hazardous. unless they are properly prepared according to AWS F4.1 (see Safety Standards). Welding produces fumes and gases. Breathing these D Do not weld where the atmosphere may contain flammable dust, fumes and gases can be hazardous to your health.
1-3. Engine Hazards EXHAUST SPARKS can cause fire. BATTERY EXPLOSION can injure. D Do not let engine exhaust sparks cause fire. D Always wear a face shield, rubber gloves, and protective clothing when working on a battery. D Use approved engine exhaust spark arrestor in required areas —...
1-4. Hydraulic Hazards D HYDRAULIC FLUID is FLAMMABLE−−do not work on hydraulics HYDRAULIC EQUIPMENT can injure near sparks or flames; do not smoke near hydraulic fluid. or kill. D Reinstall doors, panels, covers, or guards when servicing is D Incorrect installation or operation of this unit finished and before starting unit.
HOT METAL from air arc cutting and MOVING PARTS can injure. gouging can cause fire or explosion. D Keep away from moving parts such as fans, D Do not cut or gouge near flammables. belts and rotors. D Watch for fire; keep extinguisher nearby. D Keep all doors, panels, covers, and guards closed and securely in place.
WELDING WIRE can injure. H.F. RADIATION can cause interference. D Do not press gun trigger until instructed to do D High-frequency (H.F.) can interfere with radio navigation, safety services, computers, and communications equipment. D Do not point gun toward any part of the body, other people, or any metal when threading D Have only qualified persons familiar with welding wire.
1-8. Principal Safety Standards Safety in Welding, Cutting, and Allied Processes, ANSI Standard Z49.1, 25 West 43rd Street, New York, NY 10036 (phone: 212-642-4900, web- from Global Engineering Documents (phone: 1-877-413-5184, website: site: www.ansi.org). www.global.ihs.com). Standard for Fire Prevention During Welding, Cutting, and Other Hot Safe Practices for the Preparation of Containers and Piping for Welding Work, NFPA Standard 51B, from National Fire Protection Association, and Cutting, American Welding Society Standard AWS F4.1, from Glob-...
SECTION 2 CONSIGNES DE SÉCURITÉ − LIRE AVANT − UTILISATION fre_rom_2011−04 Pour écarter les risques de blessure pour vous−même et pour autrui — lire, appliquer et ranger en lieu sûr ces consignes relatives aux précautions de sécurité et au mode opératoire. 2-1.
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Il reste une TENSION DC NON NÉGLIGEABLE dans les LES RAYONS DE L’ARC peuvent sources de soudage onduleur UNE FOIS le moteur coupé. provoquer des brûlures dans les yeux et sur la peau. D Couper l’alimentation du poste et décharger les condensateurs d’entrée comme indiqué...
D Protéger les bouteilles de gaz comprimé d’une chaleur excessive, LE BRUIT peut affecter l’ouïe. des chocs mécaniques, des dommages physiques, du laitier, des flammes ouvertes, des étincelles et des arcs. Le bruit des processus et des équipements peut D Placer les bouteilles debout en les fixant dans un support station- affecter l’ouïe.
D Mettre des lunettes de sécurité et des gants, placer un torchon sur LES ÉTINCELLES À L’ÉCHAPPEMENT le bouchon du radiateur. peuvent provoquer un incendie. D Dévisser le bouchon légèrement et laisser la vapeur s’échapper avant d’enlever le bouchon. D Empêcher les étincelles d’échappement du moteur de provoquer un incendie.
Les PIÈCES MOBILES peuvent causer LES PIÈCES ET LIQUIDES CHAUDS des blessures. peuvent provoquer des brûlures. D S’abstenir de toucher des parties mobiles telles D Ne pas toucher les pièces chaudes à main nue que des ventilateurs, courroies et rotors. ni laisser des liquides chauds entrer en contact avec la peau.
D Remettre en place les portes, panneaux, recouvrements ou PRESSION D’AIR RÉSIDUELLE dispositifs de protection à la fin des travaux d’entretien et avant ET DES FLEXIBLES QUI FOUETTENT de mettre le moteur en marche. risquent de provoquer des blessures. D Détendre la pression pneumatique des outils et PIÈCES CHAUDES peuvent...
D Demander seulement à des personnes qualifiées familiarisées LES CHARGES ÉLECTROSTATI- avec des équipements électroniques de faire fonctionner l’installa- QUES peuvent endommager les tion. circuits imprimés. D L’utilisateur est tenu de faire corriger rapidement par un électricien qualifié les interférences résultant de l’installation. D Établir la connexion avec la barrette de terre avant de manipuler des cartes ou des pièces.
2-8. Principales normes de sécurité Safety in Welding, Cutting, and Allied Processes, ANSI Standard Z49.1, 25 West 43rd Street, New York, NY 10036 (phone: 212-642-4900, web- from Global Engineering Documents (phone: 1-877-413-5184, website: site: www.ansi.org). www.global.ihs.com). Standard for Fire Prevention During Welding, Cutting, and Other Hot Safe Practices for the Preparation of Containers and Piping for Welding Work, NFPA Standard 51B, from National Fire Protection Association, and Cutting, American Welding Society Standard AWS F4.1, from Glob-...
SECTION 3 − DEFINITIONS 3-1. Warning Label Definitions Remove unit from shipping S-177 571 crate. Remove Owner’s Manual from unit. Follow instructions to install muffler. Read Owner’s Manual. Read labels on unit. Use Diesel Fuel only, and fill fuel tank. Leave room for expansion.
3-2. Symbols And Definitions Some symbols are found only on CE products. Fast (Run, Weld/ Stop Engine Slow (Idle) Start Engine Power) Starting Aid Engine Oil Battery (Engine) Engine Oil (Preheat) Pressure Check Injectors/ Check Valve Protective Earth Fuel Pump Clearance (Ground) Certified/Trained...
SECTION 4 − SPECIFICATIONS 4-1. Important Information Regarding CE Products (Sold Within The EU) A. Information On Electromagnetic Fields (EMF) This equipment shall not be used by the general public as the EMF limits for the general public might be exceeded during welding. This equipment is built in accordance with EN 60974−1 and is intended to be used only in an occupational environment (where the general public access is prohibited or regulated in such a way as to be similar to occupational use) by an expert or an instructed person.
4-4. Volt-Ampere Curves C. Stick Mode The volt-ampere curves show the minimum and maximum voltage and amperage output capabilities of the welding generator. Curves of all other settings fall between the curves shown. DC Amperes D. MIG Mode DC Amperes E.
4-5. Fuel Consumption The curve shows typical fuel use under weld or power loads. 2.00 1.75 1.50 1.25 1.00 0.75 0.50 0.25 IDLE 0.00 DC WELD AMPERES AT 100% DUTY CYCLE 237 471 4-6. Duty Cycle And Overheating 100% Duty Cycle Duty Cycle is percentage of 10 min- utes that unit can weld at rated load without overheating.
4-7. AC Generator Power Curve The AC power curve shows the generator power in amperes. AC AMPERES IN 110V MODE AC AMPERES IN 220V MODE 220 346−B 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)
SECTION 5 − INSTALLATION 5-1. Serial Number And Rating Label Location The serial number and rating information for this product is located on the front. Use rating label to determine input power requirements and/or rated output. For future reference, write serial number in space provided on back cover of this manual. 5-2.
5-3. Mounting Welding Generator Do not weld on base. Weld- ing on base can cause fuel tank fire or explosion. Weld only on the four mounting brackets or bolt unit down. Supporting The Unit NOTICE − Do not mount unit by supporting the base only at the four mounting brackets.
5-4. Grounding Generator To Truck Or Trailer Frame Always ground generator frame to vehicle frame to pre- vent electric shock and static electricity hazards. Also see AWS Safety & Health Fact Sheet No. 29, Grounding of Portable And Vehicle Mounted Welding Generators.
5-5. Installing Exhaust Pipe Stop engine and let cool. Point exhaust pipe in desired di- rection but always away from front panel and direction of travel. Tools Needed: 1/2 in. 803 582 / Ref. 287 125-A Notes Work like a Pro! Pros weld and cut safely.
5-6. Activating The Dry Charge Battery (If Applicable) Always wear a face shield, rubber gloves and protective clothing when working on a battery. Remove battery from unit. Vent Caps Sulfuric Acid Electrolyte (1.265 Specific Gravity) Well Fill each cell with electrolyte to bottom of well (maximum).
5-8. Engine Prestart Checks Check radiator coolant level when fluid is low in recovery tank. Full Full Diesel Capacity: 6 qt (5.7 L) Engine stops if fuel level is low. Coolant Recovery Tank Hot Full Cold Full Full Ref. 804 009−C freeze to mixture if using the unit in tempera- Check all engine fluids daily.
5-9. Connecting To Weld Output Terminals Stick and TIG Welding MIG and FCAW Welding For Stick and TIG welding Direct Current Elec- For MIG and FCAW welding Direct Current trode Positive (DCEP), connect electrode Electrode Positive (DCEP), connect wire holder cable to Positive (+) terminal and work feeder cable to Positive (+) terminal and work cable to Negative (−) terminal on left.
**Weld cable size (AWG) is based on either a 4 volts or less drop or a current density of at least 300 circular mils per ampere. ( ) = mm for metric use ***For distances longer than those shown in this guide, call a factory applications rep. at 920-735-4505 (Miller) or 1-800-332-3281 (Hobart) Ref. S-0007-G 2009−08 Notes...
5-11. Connecting To Remote 14 Receptacle RC14 Socket* Socket Information 24 volts AC. Protected by sup- plementary protector CB8. 24 VOLTS AC Contact closure to A completes 24 volt AC contactor control circuit. Output to remote control:+10 volts DC in MIG mode; 0 to +10 volts DC in Stick or TIG mode.
6-2. Description Of Front Panel Controls (See Section 6-1) Engine Starting Controls Engine Gauges, Meters, And Lights Process/Contactor Switch See Section 6-6 for complete fuel/hour See Section 6-3 for Process/Contactor Preheat Switch switch information. gauge information. Use switch to energize starting aid for cold Fuel Gauge/Hourmeter Voltage/Amperage Control weather starting (see starting instructions fol-...
6-3. Process/Contactor Switch Weld output terminals are en- ergized when Process/Con- tactor switch is in a Weld Ter- minals Always On position and the engine is running. Process/Contactor Switch Weld Terminals Always On − TIG Lift Arc Position Remote On/Off Switch Required −...
6-4. Lift-Arct TIG With Crater-Out And Auto-Stopt Arc Start With Lift-Arc TIG Lift-Arc is used for the DCEN GTAW process when HF Start method is not permitted. Select Lift-Arc at Process/Contac- tor switch. Arc Start With Lift-Arc Turn gas on. Touch or scratch.
6-5. Remote Voltage/Amperage Control Remote 14 Receptacle RC14 Connect optional remote control to RC14 (see Section 5-11). When a remote control is con- nected to the Remote receptacle, the Auto Sense Remote feature automatically switches voltage/ amperage control to the remote control.
SECTION 7 − OPERATING AUXILIARY EQUIPMENT 7-1. Auxiliary Power Receptacles Ref. 287 125-A 220V 16 A AC Receptacle RC12 Earth Leakage Circuit Breaker ELCB1 Maximum combined output of all recep- tacles is 10 kVa/kW. 110V 20 A AC Receptacle GFCI1 Earth Leakage Circuit Breaker ELCB2 At least once a month, run engine at If a ground fault is detected, GFCI Reset...
8-2. Routine Maintenance Stop engine before maintaining. See Engine Manual and Maintenance Label Recycle engine for important start-up, service, and storage fluids. information. Service engine more often if used in severe conditions. n = Check Z = Change ~ = Clean l = Replace Reference * To be done by Factory Authorized Service Agent...
8-3. Caterpillar Customer Assistance Service If your problem cannot be resolved at Please follow the above steps in sequence the dealer level without additional if a problem arises. When a problem arises concerning the op- assistance, call a Field Service eration or service of the engine, the prob- Website Address Coordinator at 1-800-447-4986.
8-5. Servicing Air Cleaner Stop engine. NOTICE − Do not run engine without air cleaner or with dirty element. Engine damage caused by using a damaged ele- ment is not covered by the warranty. The air cleaner primary element can be cleaned but the dirt holding capac- ity of the filter is reduced with each cleaning.
8-6. Inspecting And Cleaning Spark Arrestor Muffler Stop engine and let cool. Spark Arrestor Muffler Cleanout Plug Remove plug and remove any dirt covering cleanout hole. Exhaust Pipe Start engine and run at idle speed to blow out cleanout hole. If nothing blows out of hole, briefly cover end of exhaust pipe with fireproof material.
8-8. Adjusting Engine Speed On Standard Models Stop engine and let cool. Engine speed is factory set and should not require adjustment. Af- ter tuning engine, check engine Engine Speed speed with tachometer or frequen- RPM (Hz) (No Load) cy meter. See table for proper no load speed.
8-9. Servicing Fuel And Lubrication Systems Stop engine and let cool. After servicing, start engine and check for fuel leaks. Stop engine, tighten connec- tions as necessary, and wipe up spilled fuel. Oil Filter Oil Drain Valve And Hose Oil Fill Cap Primary (Canister) Fuel Filter Secondary (In-Line) Fuel Filter...
8-10. Overload Protection Stop engine. When a circuit breaker, supple- mentary protector, or fuse opens, it usually indicates a more serious problem exists. Contact Factory Authorized Service Agent. Fuse F1 F1 protects the stator exciter wind- ing from overload. If F1 opens, weld and generator power is low or stops entirely.
8-11. Optional Voltmeter/Ammeter Help Displays Use the Voltmeter/Ammeter help displays to diagnose and correct fault conditions. When a help code is displayed normally weld output has stopped but generator power output may be okay. To reset help displays, stop unit and then restart. See item 5 below to reset Help 25 dis- HL.P play.
8-12. Troubleshooting Also see Voltmeter/Ammeter help displays to assist in troubleshooting weld problems (see Section 8-11). A. Welding Trouble Remedy No weld output; generator power output Place Process/Contactor switch in a Weld Terminals Always On position, or place switch in a Remote okay at AC receptacles.
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B. Standard Generator Power Trouble Remedy No generator power output at AC recep- Reset receptacle supplementary protectors (see Section 7-1). tacles; weld output okay. No generator power or weld output. Disconnect equipment from generator power receptacles during start-up. Check fuse F1, and replace if open (see Section 8-10). Have Factory Authorized Service Agent check field excitation circuit.
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Trouble Remedy Engine slowly stopped and cannot be Check fuel level. restarted. Check fuel/hour meter for indication of shutdown. Check engine air and fuel filters (see Sections 8-5 and 8-9). See engine manual. Battery discharges between uses. Turn Engine Control switch off when unit is not running. Clean top of battery with baking soda and water solution;...
SECTION 10 − RUN-IN PROCEDURE run_in1 2007−04 10-1. Wetstacking NOTICE − Do not perform run-in procedure at less than 20 volts weld output and do not exceed duty cycle or equipment damage may occur. Welding Generator Run diesel engines near rated volt- age and current during run-in period to properly seat piston rings and prevent wetstacking.
10-2. Run-In Procedure Using Load Bank Stop engine. Do not touch hot exhaust pipe, engine parts, or load bank/grid. Keep exhaust and pipe away from flammables. NOTICE − Do not perform run-in procedure at less than 20 volts weld output and do not exceed duty cycle or equipment damage may occur.
10-3. Run-In Procedure Using Resistance Grid Stop engine. Do not touch hot exhaust pipe, engine parts, or load bank/grid. Keep exhaust and pipe away from flammables. NOTICE − Do not perform run-in procedure at less than 20 volts weld output and do not exceed duty cycle or equipment damage may occur.
SECTION 11 − GENERATOR POWER GUIDELINES The views in this section are intended to be representative of all engine-driven welding generators. Your unit may differ from those shown. 11-1. Selecting Equipment Generator Power Receptacles − Neutral Bonded To Frame 3-Prong Plug From Case Grounded Equipment 2-Prong Plug From Double Insulated Equipment...
11-3. Grounding When Supplying Building Systems Equipment Grounding Terminal Grounding Cable Use #8 AWG or larger insulated copper wire. GND/PE Ground Device Use ground device as stated in electrical codes. Ground generator to system earth ground if supplying power to a premises (home, shop, farm) wiring system.
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11-5. Approximate Power Requirements For Industrial Motors Industrial Motors Rating Starting Watts Running Watts Split Phase 1/8 HP 1/6 HP 1225 1/4 HP 1600 1/3 HP 2100 1/2 HP 3175 Capacitor Start-Induction Run 1/3 HP 2020 1/2 HP 3075 3/4 HP 4500 1400 1 HP...
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11-7. Approximate Power Requirements For Contractor Equipment Contractor Rating Starting Watts Running Watts Hand Drill 1/4 in 3/8 in 1/2 in Circular Saw 6-1/2 in 7-1/4 in 8-1/4 in 1400 1400 Table Saw 9 in 4500 1500 10 in 6300 1800 Band Saw 14 in...
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11-8. Power Required To Start Motor Single-Phase Induction Motor Starting Requirements Motor Start Code KVA/HP 10.0 11.2 12.5 14.0 Motor Start Code Running Amperage Motor HP Motor Voltage To find starting amperage: Step 1: Find code and use table to find kVA/HP.
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11-10. Typical Connections To Supply Standby Power Have only qualified persons perform these connections according to all applicable codes and safety practices. Properly install, ground, and operate this equipment ac- cording to its Owner’s Manu- Fused Welding Utility al and national, state, and lo- Disconnect Electrical Generator...
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11-11. Selecting Extension Cord (Use Shortest Cord Possible) Cord Lengths for 120 Volt Loads Use GFCI protection when operating auxiliary equipment. If unit does not have GFCI receptacles, use GFCI-protected exten- sion cord. Maximum Allowable Cord Length in ft (m) for Conductor Size (AWG)* Current (Amperes) Load (Watts)
SECTION 12 − PARTS LIST Hardware is common and not available unless listed. Wiring harnesses are listed at the end of parts section. 4−Fig.12−5 2−Fig.12−3 97−Fig.12−2 Figure 12-1. Main Assembly OM-4435 Page 64...
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Hardware is common and not available unless listed. Wiring harnesses are listed at the end of parts section. 13 14 804 011−D Figure 12-2. Panel, Front w/Components Item Dia. Part Mkgs. Description Quantity Figure 12-2. Panel, Front w/Components (Figure 12-1 Item 97 ) .
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Item Dia. Part Mkgs. Description Quantity Figure 12-2. Panel, Front w/Components (Continued) ... . . 217680 Switch, Ignition 4 Position W/Out Handle ......
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Hardware is common and not available unless listed. Wirng harnesses are listed at the end of parts section. 803 689-E Figure 12-3. Control Panel Item Dia. Part Mkgs. Description Quantity Figure 12-3. Control Panel (Figure 12-1 Item 2) ..
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Hardware is common and not available unless listed. Wiring harnesses are listed at the end of parts section. 803 686-C Figure 12-4. Generator Item Dia. Part Mkgs. Description Quantity Figure 12-4. Generator (Figure 12-1 Item 71) ..ROTOR .
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Hardware is common and not available unless listed. Wiring harnesses are listed at the end of parts section. 804 010−A Figure 12-5. Rectifier Assembly Item Dia. Part Mkgs. Description Quantity Figure 12-5. Rectifier Assembly (Figure 12-1 Item 4) ....217082 Rectifier, Assembly (Includes) .
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Some wiring harness components (switches, relays, supplementary protectors) are also referenced elsewhere in this parts list. Purchase compo- nents separately or as part of the associated wiring harness. Item Dia. Part Mkgs. Description Quantity Wiring Harnesses ....235012 Harness, Engine (Includes) .
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Effective January 1, 2011 (Equipment with a serial number preface of MB or newer) This limited warranty supersedes all previous Miller warranties and is exclusive with no other Warranty Questions? guarantees or warranties expressed or implied. LIMITED WARRANTY − Subject to the terms and conditions 90 Days —...
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