Miller EnPak A30 GBW Owner's Manual
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Miller EnPak A30 GBW Owner's Manual

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and more, visit
www.MillerWelds.com/EnPak
)
EnPak A30 GBW
OM-283757C
)
Processes
Battery Charging
Multiprocess Welding
Description
Engine Driven Air Compressor,
Generator, Battery Charger, Chassis
Charger, And Welder
File: Engine Drive
2019−09

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  • Page 1 OM-283757C 2019−09 Processes Battery Charging Multiprocess Welding Description Engine Driven Air Compressor, Generator, Battery Charger, Chassis Charger, And Welder EnPak A30 GBW File: Engine Drive For product information, Owner’s Manual translations, and more, visit www.MillerWelds.com/EnPak...
  • Page 2 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.

  • Page 3: Table Of Contents

    TABLE OF CONTENTS SECTION 1 − SAFETY PRECAUTIONS − READ BEFORE USING ....... . . 1-1.
  • Page 4 TABLE OF CONTENTS SECTION 6 − CONTROLS ..............6-1.

  • Page 5: Section 1 − Safety Precautions − Read Before Using

    SECTION 1 − SAFETY PRECAUTIONS − READ BEFORE USING rom_2018−06 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.
  • Page 6 D Watch for fire, and keep a fire extinguisher nearby. FLYING METAL or DIRT can injure D Be aware that welding on a ceiling, floor, bulkhead, or partition can eyes. cause fire on the hidden side. D Do not cut or weld on tire rims or wheels. Tires can explode if heat- D Welding, chipping, wire brushing, and grinding ed.

  • Page 7: Engine Hazards

    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 D Use approved engine exhaust spark arrestor in protective clothing when working on a battery. required areas —...

  • Page 8: Additional Symbols For Installation, Operation, And Maintenance

    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.
  • Page 9 BATTERY CHARGING OUTPUT and BATTERY STATIC (ESD) can damage PC boards. EXPLOSION can injure. D Put on grounded wrist strap BEFORE handling Battery charging not present on all models. boards or parts. D Use proper static-proof bags and boxes to D Always wear a face shield, rubber gloves, and store, move, or ship PC boards.

  • Page 10: California Proposition 65 Warnings

    1-6. California Proposition 65 Warnings For Diesel Engines: WARNING: Breathing diesel engine exhaust exposes you to WARNING: This product can expose you to chemicals in- chemicals known to the state of California to cause cancer cluding lead, which are known to the state of California to and birth defects or other reproductive harm.

  • Page 11: Section 2 − Consignes De Sécurité − Lire Avant Utilisation

    SECTION 2 CONSIGNES DE SÉCURITÉ − LIRE AVANT − UTILISATION rom_2018−06_fre 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.
  • Page 12 D Fixer le câble de retour de façon à obtenir un bon contact métal- LES ACCUMULATIONS DE GAZ métal avec la pièce à souder ou la table de travail, le plus près pos- risquent de provoquer des blessures sible de la soudure. ou même la mort.

  • Page 13: Dangers Existant En Relation Avec Le Moteur

    D Porter un équipement de protection pour le corps fait d’un matériau Si des BOUTEILLES sont endomma- résistant et ignifuge (cuir, coton robuste, laine). La protection du gées, elles pourront exploser. corps comporte des vêtements sans huile comme par ex. des gants de cuir, une chemise solide, des pantalons sans revers, des chaussures hautes et une casquette.

  • Page 14: Dangers Liés À L'air Comprimé

    D Ne pas approcher les mains, cheveux, vêtements lâches et outils cisé autrement dans la section maintenance du manuel du des organes mobiles. moteur). D Si le moteur est chaud et que le liquide doit être vérifié, opérer com- D Remettre en place les portes, panneaux, recouvrements ou me suivant.

  • Page 15: Dangers Supplémentaires En Relation Avec L'installation, Le Fonctionnement Et La Maintenance

    détendre la pression et s’assurer que le circuit d’air ne peut être L’INHALATION D’AIR COMPRIMÉ risque mis sous pression par inadvertance. de provoquer des blessures ou même D Demander seulement à un personnel qualifié d’enlever la mort. les dispositifs de sécurité ou les recouvrements pour effectuer, s’il y a lieu, des travaux d’entretien et de dépannage.
  • Page 16 D Réduire le courant ou le facteur de marche avant de poursuivre le LA SORTIE DE RECHARGE et L’EXP- soudage. LOSION DE LA BATTERIE peuvent D Ne pas obstruer les passages d’air du poste. provoquer des blessures. LES CHARGES ÉLECTROSTATI- La recharge de batterie n’existe pas sur tous les QUES peuvent endommager les modèles.

  • Page 17: Proposition Californienne 65 Avertissements

    2-6. Proposition californienne 65 Avertissements Pour les moteurs diesel : AVERTISSEMENT : ce produit peut vous exposer à des pro- duits chimiques tels que le plomb, reconnus par l’État de AVERTISSEMENT : les gaz d’échappement de moteurs diesel Californie comme cancérigènes et sources de malformations vous exposent à...

  • Page 18: Section 3 − Definitions

    A complete Parts List is available at www.MillerWelds.com SECTION 3 − DEFINITIONS 3-1. Additional Safety Symbol Definitions Warning! Watch Out! There are possible hazards as shown by the symbols. Safe1 2012−05 Never use generator inside a home or garage, even if doors and win- dows are open.
  • Page 19 A complete Parts List is available at www.MillerWelds.com Shielded Metal Arc Welding Fuel Air Compressor (SMAW) Gas Metal Arc Battery (Engine) Air Filter Welding (GMAW) Flux Cored Arc Engine Belt Drive Welding (FCAW) Gas Tungsten Arc Welding (GTAW) / Engine Arc Control Tungsten Inert Gas (TIG)

  • Page 20: Section 4 − Specifications

    A complete Parts List is available at www.MillerWelds.com SECTION 4 − SPECIFICATIONS 4-1. Serial Number And Rating Label Location The serial number and rating information for this product is located on the front and side panels. Use rating label to determine rated output. For future reference, write serial number in space provided on back cover of this manual.

  • Page 21: Environmental Specifications

    A complete Parts List is available at www.MillerWelds.com 4-7. Environmental Specifications A. IP Rating IP Rating IP23 This equipment is designed for outdoor use. IP23 2017−02 B. Temperature Specifications Operating Temperature Range* Storage/Transportation Temperature Range −20 to 104°F (−29 to 40°C) −40 to 131°F (−40 to 55°C) *Output is derated at temperatures above 104°F (40°C).

  • Page 22: Remote Panel Dimensions And Weights

    A complete Parts List is available at www.MillerWelds.com 4-9. Remote Panel Dimensions And Weights Remote Control Panel Weld/Battery Charge Remote Panel Optional Auxiliary Power Remote Panel Height 6.195 in. (157 mm) 6.768 in. (172 mm) 6.57 in. (167 mm) Width 16.24 in.

  • Page 23: Generator Power Curves

    A complete Parts List is available at www.MillerWelds.com 4-11. Generator Power Curves The AC generator power curve shows the generator power available in amperes at the receptacles. 120 Volt Tools and motors are designed to op- erate within 10% of 120/240 VAC. Volts Amps 240 Volt...

  • Page 24: Volt-Ampere Curves - Weld

    A complete Parts List is available at www.MillerWelds.com 4-12. Volt-Ampere Curves - Weld The volt-ampere curves show the minimum and maximum voltage Stick and amperage output capabilities of the unit. Curves of other settings fall between the curves shown. VOLTS AMPS VOLTS AMPS...

  • Page 25: Volt-Ampere Curves - Battery Charge And Chassis Power

    A complete Parts List is available at www.MillerWelds.com 4-13. Volt-Ampere Curves - Battery Charge And Chassis Power 12 Volts Volts Amps 24 Volts Volts Amps Chassis Power Volts Amps 281703 / 284438 OM-283757 Page 21...

  • Page 26: Fuel Consumption

    A complete Parts List is available at www.MillerWelds.com 4-14. Fuel Consumption Air Compressor at 150 psi 1.20 1.00 0.80 0.60 0.40 0.20 0.00 100% Air Compressor Duty Cycle (%) at 150psi/30 CFM/3600 rpm Auxiliary Power 1.20 1.00 0.80 0.60 0.40 0.20 0.00 Aux Power (kW)

  • Page 27: Section 5 − Installation

    A complete Parts List is available at www.MillerWelds.com SECTION 5 − INSTALLATION 5-1. Installing Unit Movement / Airflow Clearance 24 in. (610 mm) 1 in. (25 mm) 2 in. (51 mm) 18 in. 6 in. (460 mm) (152 mm) Location / Mounting Welding Unit In Place Bolting Unit In Place Install4_2019−02 −...

  • Page 28: Installing Remote Control Panel

    A complete Parts List is available at www.MillerWelds.com 5-2. Installing Remote Control Panel Remote Control Panel - Front Mounting Hole (4) Block-off Plate 12-Pin Connector Remote Control Panel - Rear Select mounting location and mark re- mote mounting hole placement. En- sure cables will reach from base unit to remote.

  • Page 29: Installing Weld/Battery Charge Remote Panel

    A complete Parts List is available at www.MillerWelds.com 5-3. Installing Weld/Battery Charge Remote Panel Weld/Battery Charge Remote Panel - Front Weld/Battery Charge Remote Panel - Rear Mounting Holes Strain Relief Weld Negative Cable Weld Positive Cable Battery Charge Cable Plug Outer Strain Relief Nut 10 Ground Stud Select mounting location and mark re-...

  • Page 30: Installing Optional Auxiliary Power Remote Panel

    A complete Parts List is available at www.MillerWelds.com 5-4. Installing Optional Auxiliary Power Remote Panel Auxiliary Power Remote Panel- Front Auxiliary Power Remote Panel - Rear Mounting Holes Strain Relief Plug Ground Stud Black Lead Brown Lead Blue Lead 10 Green Lead 11 Outer Strain Relief Nut Remove front cover of remote panel.

  • Page 31: Electrical Connections For Remote Panels And Truck

    A complete Parts List is available at www.MillerWelds.com 5-5. Electrical Connections For Remote Panels And Truck Tools Needed: 3/8 in., 11/16 in. Low Voltage DC Terminal Strip 282903 / 907772 Min.)- Must Be Connected Directly To Remove electrical guard covering terminal Only qualified individuals should Vehicle Battery strip.

  • Page 32: Auxiliary Power Terminal Strip

    A complete Parts List is available at www.MillerWelds.com 5-6. Auxiliary Power Terminal Strip High Voltage AC Terminal Strip Black Brown Blue Green 907772 / 282903-A Remove electrical guard covering terminal Secure auxiliary power cable using cable Only qualified individuals should strip.

  • Page 33: Grounding Generator And Remote Panel To Truck Or Trailer Frame

    A complete Parts List is available at www.MillerWelds.com 5-7. Grounding Generator And Remote Panel To Truck Or Trailer Frame GND/PE Ref. rot_grnd3 2017−01 − 800 652-D nect a ground wire from the genera- Equipment Grounding Terminal (On Always ground generator frame to tor equipment grounding terminal to High Voltage AC Terminal Strip;...

  • Page 34: Engine Prestart Checks

    A complete Parts List is available at www.MillerWelds.com 5-9. Engine Prestart Checks Check all fluids daily. Engine must be cold and on a level surface. Unit is shipped with 10W30 engine oil. Follow run-in procedure in en- gine manual. This unit has a low oil pressure shutdown switch.

  • Page 35: Compressor Prestart Checks

    (see Section 13-3). NOTICE − Do not mix oil types. Do not pipe. Maximum oil level is in threaded area overfill. Use only Miller oil 276620. of oil fill pipe. Close side service door. OM-283757 Page 31...

  • Page 36: Installing Exhaust Pipe

    A complete Parts List is available at www.MillerWelds.com 5-11. Installing Exhaust Pipe Stop engine and let cool. Engine backfire can cause se- vere burns or other injuries. Do not point exhaust pipe to- ward control panel. Keep away from exhaust outlet. Do not point exhaust pipe to- ward any compressed gas tank.

  • Page 37: Connecting External Fuel Supply

    A complete Parts List is available at www.MillerWelds.com 5-12. Connecting External Fuel Supply Route all hoses away from hot, sharp or moving parts. Check all connections and hoses for damage, leaks, and wear. Follow all applicable regulations. Fuel pickup hose should be 1/4 in. (6.35 mm) ID minimum.

  • Page 38: Section 6 − Controls

    A complete Parts List is available at www.MillerWelds.com SECTION 6 − CONTROLS 6-1. Control Panel Ref. 283789 Engine Starting Controls Select Button amperage is displayed on Ammeter. When welding is finished, ammeter displays aver- Push the control to use as Select button. Engine Control Switch age weld amperage and then defaults to pre- Use switch to start engine, select speed, and...

  • Page 39: Process Switch

    A complete Parts List is available at www.MillerWelds.com 6-2. Process Switch Process Switch Process switch works in conjunc- tion with Charge/Weld switch. Charge/Weld switch must be in the WELD position for weld processes, CHARGE position for battery charge operation. Use switch to select weld process and battery charge process (see table below).

  • Page 40: Service Menu

    A complete Parts List is available at www.MillerWelds.com 6-3. Service Menu Adjust Control/Select Button Press and hold Adjust Control/Select button for 5 seconds, then release to access the Service Menu. Rotate the knob to scroll through the menu items. Press and release the control to access the options and informa- tion within each menu item.

  • Page 41: Updating Software

    A complete Parts List is available at www.MillerWelds.com 6-4. Updating Software Obtain the latest software to be loaded Confirm by rotating the Adjust Control/Se- If a valid update file for the weld module is from MillerWelds.com. detected, the meter display reads AL lect button clockwise to select YES.

  • Page 42: Summary File

    A complete Parts List is available at www.MillerWelds.com 6-5. Summary File Summary File Each time a USB stick is inserted in the USB receptacle when the engine is running, a summary file is saved to the USB stick as Sum- maryFile.txt.

  • Page 43: Fuel/Hour Gauge Descriptions

    A complete Parts List is available at www.MillerWelds.com 6-6. Fuel/Hour Gauge Descriptions OM-283757 Page 39...

  • Page 44: Auto Start/Stop Operation

    A complete Parts List is available at www.MillerWelds.com 6-7. Auto Start/Stop Operation Ref. 283789-A Auto Start Controls Scroll to select a STOP TIME between 2 compressor output pressure reaches Max and 30 minutes in increments of one Pressure, the compressor reduces case Engine Control Switch minute.

  • Page 45: Section 7 − Compressor System

    A complete Parts List is available at www.MillerWelds.com SECTION 7 − COMPRESSOR SYSTEM 7-1. Air Compressor Switch Ref. 283789-A turn compressor on. Turn switch to Off posi- speed increases to meet air demand. When Weld output and generator power may tion to turn air compressor off.

  • Page 46: Air Compressor Controls And Adjusting System Pressure

    A complete Parts List is available at www.MillerWelds.com 7-2. Air Compressor Controls And Adjusting System Pressure 283913 / 277873 mechanical safety valve (pressure relief Compressor Outlet After the air compressor shuts off, valve) that will open if pressure reaches the blow down cycle begins and When MAX pressure is reached, the blow- 225 psi.

  • Page 47: Air Compressor Operation With Air Tools

    A complete Parts List is available at www.MillerWelds.com 7-3. Air Compressor Operation With Air Tools 10 Gallon Minimum Air Tank Connect a 10−gallon minimum air tank to compressor builds pressure. the continuous CFM of the tool exceeds the air compressor outlet. The added air the rating of the compressor, the larger the For air usage greater than the compressor volume will supplement the air output for...

  • Page 48: Section 8 − Chassis Power

    A complete Parts List is available at www.MillerWelds.com SECTION 8 − CHASSIS POWER 8-1. Chassis Power And Auto Start/Stop Operation Ref. 283789-A erally keeps the system above 14 volts. If the actual voltage and amperage that the Always put Engine Control Switch additional 12 volt DC loads are added to the weld/charge module is supplying.

  • Page 49: Section 9 − Battery Charging

    A complete Parts List is available at www.MillerWelds.com SECTION 9 − BATTERY CHARGING 9-1. Battery Charging Guidelines Stop engine. Keep battery charging cables away Do not jump-start/crank assist a ve- from vehicle hood, door, and mov- hicle without a battery. ing parts.

  • Page 50: Connecting Installed Battery To Battery Charge Receptacle

    A complete Parts List is available at www.MillerWelds.com 9-3. Connecting Installed Battery To Battery Charge Receptacle ® Battery located in vehicle (Negative post grounded to chassis) See information below regarding vehicles with battery Positive (+) grounded to chassis. − Connect black (Negative) char- ging cable to chassis or engine block (and away from battery).

  • Page 51: Setting Battery Charge Controls

    A complete Parts List is available at www.MillerWelds.com 9-4. Setting Battery Charge Controls Have only qualified persons charge batteries. Never place 12V battery on 24V only setting. Charge/Weld Switch Place switch in battery charge position. Process Switch Place switch in position matching voltage of battery being charged.

  • Page 52: Battery Charging Information On Display Screens

    A complete Parts List is available at www.MillerWelds.com 9-6. Battery Charging Information On Display Screens Display Screens Display screens provide information on charge mode, charging output, and charging status. Explanations of the display screen codes are provided in the tables below. Ref.

  • Page 53: Section 10 − Operating Auxiliary Equipment

    Receptacles and circuit protection are cus- Use GFCI protection when operating Unplug power cord before attempting tomer supplied. Miller Auxiliary Power Re- auxiliary equipment. If unit does not to service accessories or tools. mote Panel Kit 301512 can be connected to...

  • Page 54: Wiring Instructions For Optional 240 Volt, Single-Phase Plug (Nema 14-50P)

    A complete Parts List is available at www.MillerWelds.com 10-3. Wiring Instructions For Optional 240 Volt, Single-Phase Plug (NEMA 14-50P) The plug can be wired for a 240 V, 2-wire load or a 120/240V, 3-wire load. See circuit diagram. Plug Wired for 120/240 V, 3-Wire Load When wired for 120 V loads, each duplex receptacle shares a load...

  • Page 55: Section 11 − Welding Operation

    A complete Parts List is available at www.MillerWelds.com SECTION 11 − WELDING OPERATION 11-1. Selecting Cable Sizes* NOTICE − The Total Cable Length in Weld Circuit (see table below) is the combined length of both weld cables. For example, if the power source is 100 ft (30 m) from the workpiece, the total cable length in the weld circuit is 200 ft (2 cables x 100 ft).

  • Page 56: Weld Controls

    A complete Parts List is available at www.MillerWelds.com 11-3. Weld Controls ® 283789-A / 907772 Charge/Weld Switch Process Switch Negative Weld Output Terminal Adjust Control/Select Button Engine Control Switch Place switch in Weld position to energize weld output terminals. Positive Weld Output Terminal 10-Pin Receptacle OM-283757 Page 52...

  • Page 57: Arc Control Settings

    A complete Parts List is available at www.MillerWelds.com 11-4. Arc Control Settings Arc Control is not active when the Process switch is in the GTAW Lift-Arc TIG position. Miller recommends Hobart filler metals. Process/Contactor Switch Arc Control SOFT Starting point for stainless steel wire (high inductance) (−25 to −1)

  • Page 58: Lift-Arct Tig With Auto-Stopt

    A complete Parts List is available at www.MillerWelds.com 11-6. Lift-Arct TIG With Auto-Stopt Arc Start With Lift-Arc TIG Lift-Arc is used for the DCEN GTAW process when HF Start method is not permitted. Arc Start With Lift-Arc Select Lift-Arc at Process/Contac- tor switch.

  • Page 59: Mig Welding Connections And Settings

    A complete Parts List is available at www.MillerWelds.com 11-7. MIG Welding Connections And Settings Stop engine. This section provides general guide- lines and may not suit all applications. Work Clamp Wire Feeder MIG Gun Gun Trigger Plug Voltage Sensing Clamp Gas Cylinder: 100 CO2/75/25 Argon-Based Gas for Short Circuit Transfer...

  • Page 60: Connecting Spool Gun

    A complete Parts List is available at www.MillerWelds.com 11-8. Connecting Spool Gun Spool Gun Plug Insert plug into receptacle, and tighten threaded collar. Weld Cable Spoolmate 200 shown. Positive Weld Output Terminal Connect weld cable to weld output terminal. Shielding Gas Hose Regulator/Flowmeter (Not Shown) Work...

  • Page 61: Section 12 − Can-Bus Connection

    A complete Parts List is available at www.MillerWelds.com SECTION 12 − CAN-BUS CONNECTION 12-1. CAN-Bus Connection CAN-Bus Connector A CAN-bus connection is provided to allow read-only data communica- tion. The data is available through the CAN-bus connector located in the wiring harness underneath the compressor compartment.
  • Page 62 A complete Parts List is available at www.MillerWelds.com Table 12-1. J1939 Name For Address Claim Field Value Notes Industry Group Industrial−Process Control−Stationary (Gen−Sets) Vehicle System Instance Vehicle System Function Generator Set Controller Function Instance ECU Instance MFG Code Simma Software Identity Number Source Address Table 12-2.
  • Page 63 A complete Parts List is available at www.MillerWelds.com Table 12-3. DM1 Definitions J1939−73 SPN FMI Pcode Description Comments 520192 5 P0031 O2S 1 Heater Circuit Open or Short to Ground (Low Current Fault) 520192 520192 6 P0032 O2S 1 Heater Circuit Short to Battery (High Current Fault) 520192 102 4 P0107 MAP Sensor Circuit Open or Short to Ground (Low Current Fault) 102 3 P0108 MAP Sensor Circuit Short to Battery (High Current Fault)

  • Page 64: Section 13 − Maintenance And Troubleshooting

    A complete Parts List is available at www.MillerWelds.com SECTION 13 − MAINTENANCE AND TROUBLESHOOTING 13-1. Maintenance Label 283751-B OM-283757 Page 60...

  • Page 65: Routine Maintenance

    A complete Parts List is available at www.MillerWelds.com 13-2. Routine Maintenance Stop engine before maintaining. See Maintenance Label for important start-up, service, and Recycle storage information. Service more often if used in severe engine conditions. fluids. Engine speed is regulated by an electronic governor. Engine speed adjustments may only be performed by a Factory Authorized Service Agent. Follow the storage procedure in the engine owner’s manual if the unit will not be used for an extended period.

  • Page 66: Changing Compressor Oil, Oil Filter, Air Cleaner, And Air/Oil Separator

    A complete Parts List is available at www.MillerWelds.com 13-3. Changing Compressor Oil, Oil Filter, Air Cleaner, And Air/Oil Separator Stop engine. Do not open oil fill cap until unit has been off for 10 minutes the air compressor gauge reads zero. Do not open while running.

  • Page 67: Servicing Engine Air Cleaner

    A complete Parts List is available at www.MillerWelds.com 13-4. Servicing Engine Air Cleaner Stop engine. NOTICE − Do not run engine with- out air cleaner or with dirty element. Engine damage caused by using a damaged element is not covered by the warranty.

  • Page 68: Changing Engine Oil, Oil Filter, And Fuel Filter

    A complete Parts List is available at www.MillerWelds.com 13-5. Changing Engine Oil, Oil Filter, And Fuel Filter Stop engine and let cool. To change engine oil and oil filter: Oil Drain Valve Change engine oil and filter accord- Tools Needed: ing to engine owner’s manual.

  • Page 69: Overload Protection

    A complete Parts List is available at www.MillerWelds.com 13-6. Overload Protection Stop engine. Always put Engine Control Switch in the Off position be- fore working on unit to pre- vent automatic starting. When a circuit breaker, supple- mentary protector or fuse opens, it usually indicates a more serious problem exists.

  • Page 70: Voltmeter/Ammeter Error Displays

    A complete Parts List is available at www.MillerWelds.com 13-7. Voltmeter/Ammeter Error Displays WELD TEMP Display Example Use the Voltmeter/Ammeter error displays to diagnose and correct fault conditions. When an error is displayed, normally weld output has stopped but generator power output may be okay. To reset error displays, stop unit and then restart.
  • Page 71 A complete Parts List is available at www.MillerWelds.com Error Display Summary File Text Description Remedy ENG TEMP Engine Is Overheating Engine is overheating. Turn key switch OFF. CHK ENG Check Engine See Kohler Diagnostic codes. Turn key switch OFF. INTRLOCK Truck Interlock Signal Not Present EnPak Models only.

  • Page 72: Troubleshooting

    A complete Parts List is available at www.MillerWelds.com 13-8. Troubleshooting A. Compressor Troubleshooting Trouble Remedy Air compressor does not operate; no air Place Air Compressor switch in an On position. If compressor is turned off, wait for air pressure to bleed pressure gauge;...
  • Page 73 A complete Parts List is available at www.MillerWelds.com Trouble Remedy High air pressure. Check air compressor gauge. Adjust compressor air pressure (see Section 7-2). Check for frozen control lines. Have factory authorized service agent check inlet valve operation. Oil in air from compressor. Check compressor oil level (see Section 5-10).
  • Page 74 A complete Parts List is available at www.MillerWelds.com C. Generator Power Troubleshooting Trouble Remedy No or low generator power output at Reset supplementary protector(s) (see Section 13-6). AC receptacles. Access service menu to view engine speed (see Section 6-3). Verify engine speed increases to 3600 rpm with auxiliary power load.

  • Page 75: Section 14 − Parts List

    A complete Parts List is available at www.MillerWelds.com Trouble Remedy Engine cranks but will not start. Check fuel level. Check battery voltage. Check battery connections and tighten if necessary. Check oil level (see Section 5-9). Have Factory Authorized Service Agent check low oil pressure shutdown switch. Have Factory Authorized Service Agent check engine.

  • Page 76: Section 15 − Diagrams

    SECTION 15 − DIAGRAMS Figure 15-1. Circuit Diagram For Welder/Generator - Page 1 of 2 OM-283757 Page 72...
  • Page 77 283753-C OM-283757 Page 73...
  • Page 78 283753-C Figure 15-2. Circuit Diagram For Welder/Generator - Page 2 of 2 OM-283757 Page 74...
  • Page 79 281706-A Figure 15-3. Air Compressor Schematic OM-283757 Page 75...

  • Page 80: Section 16 − Generator Power Guidelines

    SECTION 16 − GENERATOR POWER GUIDELINES The views in this section are intended to be representative of all engine-driven welder/generators. Your unit may differ from those shown. 16-1. Selecting Equipment Generator Power Receptacles − Neutral Bonded To Frame 3-Prong Plug From Case Grounded Equipment 2-Prong Plug From Double Insulated Equipment...
  • Page 81 16-3. 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.
  • Page 82 16-5. 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...
  • Page 83 16-7. Approximate Power Requirements For Contractor Equipment Contractor Equipment 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...
  • Page 84 16-8. 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.
  • Page 85 16-10. 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 Owner’s Manual and national, state, and local codes. Do not connect to any elec- trical distribution system normally supplied by utility Fused...
  • Page 86 16-11. 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. Do not use GFCI receptacles to power life support equipment. Maximum Allowable Cord Length In ft (m) for Conductor Size In AWG (mm Current Load (Watts)
  • Page 87 Miller must be transportation costs of any kind will be allowed. notified in writing within thirty (30) days of such defect or failure, at which time Miller will provide instructions on the TO THE GREATEST...
  • Page 88 Contact the Delivering Carrier to: 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. © ORIGINAL INSTRUCTIONS − PRINTED IN USA 2019 Miller Electric Mfg. LLC 2019−01...

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