Page 2
ISO 9001:2000 Quality System Standard. particular model are also provided. Miller Electric manufactures a full line of welders and welding related equipment. For information on other quality Miller products, contact your local Miller distributor to receive the latest full line catalog or individual specification sheets.
SECTION 1 − SAFETY PRECAUTIONS − READ BEFORE USING Protect yourself and others from injury — read and follow these precautions. 1-1. Symbol Usage DANGER! − Indicates a hazardous situation which, if not avoided, will result in death or serious injury. The possible hazards are shown in the adjoining symbols or explained in the text.
Page 6
FUMES AND GASES can be hazardous. Welding produces fumes and gases. Breathing these fumes and gases can be hazardous to your health. D Keep your head out of the fumes. Do not breathe the fumes. D If inside, ventilate the area and/or use local forced ventilation at the arc to remove welding fumes and gases.
1-3. Engine Hazards BATTERY EXPLOSION can BLIND. D Always wear a face shield, rubber gloves, and protective clothing when working on a battery. D Stop engine before disconnecting or connect- ing battery cables or servicing battery. D Do not allow tools to cause sparks when working on a battery. D Do not use welder to charge batteries or jump start vehicles.
HOT METAL from air arc cutting and gouging can cause fire or explosion. D Do not cut or gouge near flammables. D Watch for fire; keep extinguisher nearby. HOT PARTS can cause burns and injury. D Do not touch hot compressor or air system parts.
H.F. RADIATION can cause interference. D High-frequency (H.F.) can interfere with radio navigation, safety services, computers, and communications equipment. D Have only qualified persons familiar with electronic equipment perform this installation. D The user is responsible for having a qualified electrician promptly correct any interference problem resulting from the installation.
SECTION 2 CONSIGNES DE SÉCURITÉ − LIRE AVANT − Se protéger, ainsi que toute autre personne travaillant sur les lieux, contre les étincelles et le métal chaud. 2-1. Signification des symboles DANGER! − Indique une situation dangereuse qui si on l’évite pas peut donner la mort ou des blessures graves.
Page 11
DES PIÈCES CHAUDES peuvent provoquer des brûlures graves. D Ne pas toucher à mains nues les parties chau- des. D Prévoir une période de refroidissement avant de travailler à l’équipement. D Ne pas toucher aux pièces chaudes, utiliser les outils recomman- dés et porter des gants de soudage et des vêtements épais pour éviter les brûlures.
LES CHAMPS MAGNETIQUES peuv- ent affecter des implants médicaux. D Porteur de simulateur cardiaque ou autre im- plants médicaux, rester à distance. D Les porteurs d’implants doivent d’abord consulter leur médecin avant de s’approcher des opérations de soudage à l’arc, de sou- dage par points, de gougeage, du coupage plasma ou de chauf- fage par induction.
L’utilisation d’un groupe autonome à l’intérieur PEUT VOUS TUER EN QUELQUES MINUTES. D Les fumées d’un groupe autonome contient du monoxyde de carbone. C’est un poison invisi- ble et inodore. D JAMAIS utiliser dans une maison ou garage, même avec les portes et fenêtres ouvertes. D Uniquement utiliser à...
Page 14
LE SURCHAUFFEMENT peut endom- mager le moteur électrique. D Arrêter ou déconnecter l’équipement avant de démarrer ou d’arrêter le moteur. D Ne pas laisser tourner le moteur trop lentement sous risque d’en- dommager le moteur électrique à cause d’une tension et d’une fré- quence trop faibles.
2-6. Proposition californienne 65 Avertissements Les équipements de soudage et de coupage produisent des fumées et des gaz qui contiennent des produits chimiques dont l’État de Californie reconnaît qu’ils provoquent des mal- formations congénitales et, dans certains cas, des cancers. (Code de santé...
4-2. Dimensions, Weights, and Operating Angles Dimensions Height 36 in (914 mm) Width 24 in (610 mm) Depth 59 in (1499 mm) 23-5/8 in (600 mm) 21-1/2 in (546 mm) 1 in (25 mm) 15-5/8 in (397 mm) 26-3/8 in (679 mm) 58-3/4 in (1492 mm) 13/32 in (10 mm) Dia.
4-4. Volt-Ampere Curves Volt-ampere curves show mini- mum and maximum voltage and amperage output capabilities of unit. Curves of other settings fall be- tween curves shown. A. CC Mode ARC CONTROL B. CV Mode 178 652 / 178 653 OM-492 Page 14...
SECTION 5 − INSTALLATION 5-1. Installing Welding Generator Movement Do not lift unit from end. Location / Airflow Clearance 18 in (460 mm) 18 in (460 mm) 18 in 18 in (460 mm) (460 mm) Mounting Inadequate support. Do not use flexible mounts. Grounding GND/PE Electrically bond generator frame to...
5-2. Engine Prestart Checks Full 1/2 in (13 mm) Full Diesel Check all fluids daily. Engine must be cold and on a level surface. Unit is shipped with 10W30 engine oil. Engine stops if oil pressure is too low or en- gine temperature is too high.
5-3. Adding Coolant To Radiator 5-4. Connecting The Battery OM-492 Page 18 Stop engine and let cool. Check coolant level according Full to Section 5-2 before starting this procedure. If coolant level is below bottom of radiator filler neck, add coolant as Capacity follows: w/Overflow Tank...
5-5. Installing Exhaust Pipe Notes Point exhaust pipe in desired direction but always away from front panel and direction of travel. Tools Needed: 1/2 in 802 173-B / Ref. 213 263-B OM-492 Page 19...
5-7. Selecting Weld Cable Sizes* Welding Amperes Weld Output Weld Output Terminals Turn off power before connecting to weld connecting to weld output terminals. Do not use worn, damaged, under- sized, sized, poorly poorly spliced cables. This chart is a general guideline and may not suit all applications. If cable(s) overheat, use next size larger cable. **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.
5-9. Guidelines For Installing Customer-Supplied Emergency Air Shutdown Valve Mount on lower front panel OM-492 Page 22 A customer-supplied emergency air shutdown valve can be installed to stop the engine imme- diately in emergency situations. These guidelines show the typical installation of a Gator ESD 175-275-L3 air shutdown valve.
6-2. Description Of Controls (See Section 6-1) motor thermostatically controlled and only runs when cooling is needed. Engine Lights Engine Temperature Light Light goes on and engine stops if engine tem- perature is too high. NOTICE − Stop engine and fix trouble if En- gine Temperature light goes on.
6-3. Meter Functions The meters display the actual weld output values for approximately three seconds after the arc is broken. Mode Scratch Start TIG Actual Volts (OCV) Lift-Arc TIG Actual Volts Preset Volts Pulsed Pulse Display Stick Actual Volts (OCV) V-Sense Feeder Flashes OCV And Preset...
6-5. Lift-Arc TIG Procedure 6-6. Recommendations For Extreme Cold Weather Operation For more information on operating in cold weather, contact the nearest Factory Au- thorized Service Agent or Kubota Service Center. Fuel Use an arctic-grade diesel fuel and keep fuel tank at least half full to prevent fuel lines from draining back into tank.
SECTION 7 − OPERATING AUXILIARY EQUIPMENT 7-1. Generator Power Receptacles And Circuit Breakers Weld Current In Amperes If unit does not have GFCI recep- tacles, use GFCI-protected exten- sion cord. Generator power decreases as weld current increases. 240 V 50 A AC Receptacle RC1 RC1 supplies 60 Hz single-phase power at weld/power speed.
7-2. Optional GFCI Receptacles And Circuit Breakers 7-3. Wiring Instructions For Optional 240 Volt, 3-Phase Twistlock Plug (NEMA L15-30P) 240V 240V 240V If unit does not have GFCI receptacles, use GFCI-pro- tected extension cord. Generator power decreases as weld current increases. 120 V 20 A AC GFCI Duplex Receptacle GFCI-2 120 V 20 A AC GFCI Duplex...
7-4. Wiring Instructions For Optional 240 Volt, Single-Phase Plug (NEMA 14-50P) Current Available in Amperes 240 V Each 120 V Duplex Receptacle* Receptacle V x A = Watts *One 240 V load or two 120 V loads. OM-492 Page 30 120V 120V 240V...
8-3. Servicing Spark Arrestor Tools Needed: 1/4 in Stop engine and let cool. Cleanout Plug Remove plug and remove any dirt covering cleanout hole. Start engine and run several min- utes to blow out cleanout hole. If nothing blows out of hole, briefly cover end of exhaust pipe with fire- proof material.
8-4. Servicing Air Cleaner Keep nozzle 2 in (51 mm) from element. Blow OM-492 Page 34 Inspect 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.
8-5. Servicing Engine Lubrication And Fuel Systems Stop engine and let cool. Oil Filter Oil Drain Valve 1/2 ID x 12 in Hose Fuel Line Primary Fuel Filter Secondary Fuel Filter Petcock Fuel Tank Sludge Drain To change oil and filter: Pull oil drain hose through access hole in base.
8-6. Servicing Engine Cooling System OM-492 Page 36 Stop engine and let cool. Radiator Draincock Radiator Cap Radiator Air Bleed Screw Change coolant according to engine manual. Add coolant according to Sec- tion 5-3). Run engine until engine reaches normal operating temperature.
8-7. Replacing Throttle Solenoid TS1 Stop engine, and let cool. Disconnect battery, negative (−) cable first. Remove right side engine panel. Plug PLG39/Receptacle RC39 Throttle Solenoid TS1 Shoulder Bolt And Nut Throttle Link Throttle Solenoid Plunger Rod Jam Nut Throttle Arm Throttle Arm Stop Screw Disconnect solenoid plug PLG39 from wiring harness receptacle...
8-8. Adjusting Engine Speed OM-492 Page 38 2500 rpm (41.6 Hz) 3750 Max (62.5 Hz) After tuning engine, check engine speeds with a tachometer (see table). If necessary, adjust speeds as follows: Start engine and run until warm. Turn V/A control to max. Adjusting Idle Speed Idle speed is factory set and normally does not not require adjustment unless...
8-9. Overload Protection Tools Needed: 3/8 in Stop engine. When a supplementary protec- tor or circuit breaker opens, it usually indicates a more seri- ous problem exists. Contact Factory Authorized Service Agent. Supplementary Protector CB5 CB5 protects the 115 volt ac output to Remote 14 receptacle RC14.
8-10. Voltmeter/Ammeter Help Displays Use the voltmeter/ammeter help displays to help determine the cause of no weld output. When a help display is shown, the inverter module weld output has stopped but the en- gine continues to run. Correct the problem before resuming operation.
8-11. Troubleshooting A. Welding Trouble No weld output. Check control settings. Check weld connections. Disconnect equipment from generator power receptacles during start-up. If using remote control, be sure mode switch is in a position that provides output control at Remote 14 receptacle (see Sections 5-8 and 6-1).
Page 46
Trouble Remote contactor control does not Check and tighten connections to Remote 14 receptacle RC14 (see Section 5-8). activate contactor. Lack of high frequency; difficulty in Use proper size tungsten for welding amperage. establishing Gas Tungsten Arc Weld- ing arc. Reduce leakage of high frequency from torch or work cable (check grounding, remove excessive coils from weld cables, use shorter weld cables, etc.).
Page 47
C. Engine Trouble Engine will not crank. Reset circuit breaker CB8 (see Section 8-9). Check battery voltage. Check battery connections and tighten if necessary. Have Factory Authorized Service Agent check Engine Control switch S2. Engine cranks, but does not start. Check fuel level (see Section 5-2).
Page 48
Trouble Engine does not go to low (idle) speed Be sure Engine Control switch S2 is in Run/Idle position. with Engine Control switch in Run/Idle position. Remove all weld and generator power loads. Turn off remote device connected to Remote 14 receptacle RC14 (see Section 5-8). Check for obstructed movement of throttle solenoid linkage.
Page 49
Notes Work like a Pro! Pros weld and cut safely. Read the safety rules at the beginning of this manual. OM-492 Page 45...
SECTION 10 − RUN-IN PROCEDURE 10-1. Wetstacking OM-492 Page 48 run_in4 2007−05 perform run-in procedure at less than 20 volts weld output and do not exceed duty cycle or equip- ment 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 OM-492 Page 50 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 11-2. Grounding Generator To Truck Or Trailer Frame GND/PE Generator Power Receptacles −...
11-3. Grounding When Supplying Building Systems 11-4. How Much Power Does Equipment Require? OM-492 Page 52 GND/PE VOLTS 115 AMPS Equipment Grounding Terminal Grounding Cable Use #10 AWG or larger insulated copper wire. Ground Device Use ground device as stated in electrical codes.
Page 57
11-5. Approximate Power Requirements For Industrial Motors Industrial Motors Split Phase Capacitor Start-Induction Run Capacitor Start-Capacitor Run Fan Duty 11-6. Approximate Power Requirements For Farm/Home Equipment Farm/Home Equipment Stock Tank De-Icer Grain Cleaner Portable Conveyor Grain Elevator Milk Cooler Milker (Vacuum Pump) FARM DUTY MOTORS Std.
Page 58
11-7. Approximate Power Requirements For Contractor Equipment Contractor Hand Drill Circular Saw Table Saw Band Saw Bench Grinder Air Compressor Electric Chain Saw Electric Trimmer Electric Cultivator Elec. Hedge Trimmer Flood Lights Submersible Pump Centrifugal Pump Floor Polisher High Pressure Washer 55 gal Drum Mixer Wet &...
Page 59
11-8. Power Required To Start Motor Motor Start Code KVA/HP 11-9. How Much Power Can Generator Supply? Single-Phase Induction Motor Starting Requirements 10.0 AC MOTOR VOLTS AMPS CODE PHASE 11.2 12.5 Motor Start Code Running Amperage Motor HP Motor Voltage To find starting amperage: Step 1: Find code and use table to find kVA/HP.
Page 60
11-10. Typical Connections To Supply Standby Power Utility Electrical Transfer Switch Service Essential Loads OM-492 Page 56 Fused Welding Disconnect Generator Switch Output (If Required) Have only qualified persons perform these connections according to all applicable codes and safety practices. Properly install and ground this equipment according to its Owner’s Manual and na-...
Page 61
11-11. Selecting Extension Cord (Use Shortest Cord Possible) Cord Lengths for 120 Volt Loads If unit does not have GFCI receptacles, use GFCI-protected extension cord. Current Load (Watts) (Amperes) 1200 1800 2400 3000 3600 4200 4800 5400 6000 *Conductor size is based on maximum 2% voltage drop Cord Lengths for 240 Volt Loads If unit does not have GFCI receptacles, use GFCI-protected extension cord.
Page 67
Hardware is common and not available unless listed. Item Dia. Part Mkgs. Figure 12-2. Front Panel (Figure 12-1, Item 93) ... . . 198 049 UPRIGHT, base front ... . +191 737 PANEL, front louver .
Page 68
Item Dia. Part Mkgs. Figure 12-2. Front Panel (Continued) ... . 192 265 GAUGE, fuel elec switch w/o switchgage sensor ... . 145 247 METER, hour 12−24vdc 1.25 x 2.12 rect 206 879...
Page 74
Notes Start Your Professional Over 80,000 trained 400 Trade Square East, Troy, Ohio 45373 Welding Career Now! since 1930! 1-800-332-9448 www.welding.org...
Page 75
Warranty Questions? LIMITED WARRANTY − Subject to the terms and conditions Call below, Miller Electric Mfg. Co., Appleton, Wisconsin, warrants to 1-800-4-A-MILLER its original retail purchaser that new Miller equipment sold after the effective date of this limited warranty is free of defects in for your local material and workmanship at the time it is shipped by Miller.
File a claim for loss or damage during shipment. For assistance in filing or settling claims, contact your distributor and/or equipment manufacturer’s Transportation Department. 2007 Miller Electric Mfg. Co. 2007−01 Miller Electric Mfg. Co. An Illinois Tool Works Company 1635 West Spencer Street Appleton, WI 54914 USA International Headquarters−USA...