Page 2 - From Hobart to You; Thank you; To locate your nearest
Hobart is registered to the ISO9001 Quality System Standard. From Hobart to You Thank you and congratulations on choosing Hobart. Now you can get the job done and get it done right. We know you don’t have time to do it any other way. This Owner’s Manual is designed to help you get the most out of yo...
Page 3 - TABLE OF CONTENTS
TABLE OF CONTENTS SECTION 1 – SAFETY PRECAUTIONS – READ BEFORE USING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1-1 Symbol Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ....
Page 5 - SECTION 1 – SAFETY PRECAUTIONS – READ BEFORE USING; Symbol Usage; Arc Welding Hazards; ELECTRIC SHOCK can kill.
OM-289543 Page 1 SECTION 1 – SAFETY PRECAUTIONS – READ BEFORE USING 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 notavoided, will result in death or ...
Page 7 - Engine Hazards
OM-289543 Page 3 � Install cylinders in an upright position by securing to a stationarysupport or cylinder rack to prevent falling or tipping. � Keep cylinders away from any welding or other electrical circuits. � Never drape a welding torch over a gas cylinder. � Never allow a welding electrode to ...
Page 10 - ARC WELDING can cause; California Proposition 65 Warnings; Principal Safety Standards
OM-289543 Page 6 � If notified by the FCC about interference, stop using the equipmentat once. � Have the installation regularly checked and maintained. � Keep high-frequency source doors and panels tightly shut, keepspark gaps at correct setting, and use grounding and shielding tominimize the possi...
Page 11 - Symboles utilisés; Dangers relatifs au soudage à l’arc; UN CHOC ÉLECTRIQUE peut tuer.
OM-289543 Page 7 SECTION 2 – CONSIGNES DE SÉCURITÉ - LIRE AVANT UTILISATION Pour écarter les risques de blessure pour vous-même et pour autrui — lire, appliquer et ranger en lieu sûr ces consignes relativesaux précautions de sécurité et au mode opératoire. 2-1. Symboles utilisés DANGER! – Indique un...
Page 13 - Dangers existant en relation avec le moteur; L’EXPLOSION DE LA BATTERIE peut
OM-289543 Page 9 � Ne pas couper ou souder des jantes ou des roues. Les pneus peu-vent exploser s’ils sont chauffés. Les jantes et les roues réparéespeuvent défaillir. Voir OSHA 29 CFR 1910.177 énuméré dans lesnormes de sécurité. � Ne pas effectuer le soudage sur des conteneurs fermés tels quedes ré...
Page 14 - Dangers liés à l’air comprimé
OM-289543 Page 10 LE CARBURANT MOTEUR peut provoquer un incendie ou uneexplosion. LA CHALEUR DUMOTEUR peut provoquer unincendie. � Arrêter le moteur avant de vérifier le niveau de carburant ou defaire le plein. � Ne pas faire le plein en fumant ou proche d’une source d’étincellesou d’une flamme nue....
Page 15 - fonctionnement et la maintenance
OM-289543 Page 11 � Ne pas intervenir sous ou autour d’un équipement qui n’est soute-nu que par la pression pneumatique. Soutenir l’équipement de fa-çon appropriée par un moyen mécanique. MÉTAL CHAUD provenant du découpage ou du gougeage à l’arcrisque de provoquer un incendie ouune explosion. � Ne p...
Page 17 - Proposition californienne 65 Avertissements; Principales normes de sécurité
OM-289543 Page 13 � Contactez votre bureau de recyclage local ou votre distributeur lo-cal pour obtenir des informations sur la manière de mettre au re-but les pièces et l’équipement d’une manière respectueuse del’environnement. LIRE LES INSTRUCTIONS. � Lire et appliquer les instructions sur les éti...
Page 18 - Informations relatives aux CEM
OM-289543 Page 14 2-8. Informations relatives aux CEM Le courant électrique qui traverse tout conducteur génère deschamps électromagnétiques (CEM) à certains endroits. Le courant is-su d’un soudage à l’arc (et de procédés connexes, y compris le sou-dage par points, le gougeage, le découpage plasma e...
Page 19 - SECTION 3 – SPECIFICATIONS; Serial Number And Rating Label Location
OM-289543 Page 15 � Complete Parts List is available at www.HobartWelders.com SECTION 3 – SPECIFICATIONS 3-1. Serial Number And Rating Label Location The serial number for this product is located on the front. The rating information for this product is located on the back. Use rating label to deter-...
Page 20 - Base Unit Dimensions, Weights, And Operating Angles
OM-289543 Page 16 � Complete Parts List is available at www.HobartWelders.com 3-3. Base Unit Dimensions, Weights, And Operating Angles Dimensions C H J K L M N P Q DEPTH Do not exceed tilt angles or engine couldbe damaged or unit could tip. Do not move or operate unit where it couldtip. Do not opera...
Page 22 - Fuel Consumption
OM-289543 Page 18 � Complete Parts List is available at www.HobartWelders.com 3-5. Fuel Consumption Auxiliary Fuel Consumption 0 2000 4000 6000 8000 10000 WATTS Run No-Load Idle Aux Power 0.00 0.50 1.00 1.50 2.00 U .S . G A L/ H R . LI T E R S /H R . 1.89 3.78 5.67 7.57 Weld Fuel Consumption 0 50 10...
Page 23 - SECTION 4 – INSTALLATION; Pallet Removal
OM-289543 Page 19 � Complete Parts List is available at www.HobartWelders.com SECTION 4 – INSTALLATION 4-1. Pallet Removal � Appearance of actual unit may differ from that shown. Pallet screws are accessed from inside baseof unit. 1 Pallet Screw Locations Removing Pallet: Open side doors. Remove pal...
Page 24 - Installing Welder/Generator
OM-289543 Page 20 � Complete Parts List is available at www.HobartWelders.com 4-2. Installing Welder/Generator Movement Location/Airflow Clearance Mounting Do not move or operate unit whereit could tip. Do not lift unit from end. Do not weld on base. Welding onbase can cause fuel tank fire or ex-plo...
Page 25 - Grounding Generator to Truck or Trailer Frame; Ground Cable Routing
OM-289543 Page 21 � Complete Parts List is available at www.HobartWelders.com 4-3. Grounding Generator to Truck or Trailer Frame Always ground generator frame tovehicle frame to prevent electricshock and static electricity hazards. Also see AWS Safety & Health FactSheet No. 29, Grounding of Port...
Page 26 - Installing Exhaust Pipe
OM-289543 Page 22 � Complete Parts List is available at www.HobartWelders.com 4-5. Installing Exhaust Pipe 1/2 in. Stop engine and let cool. Engine backfire can cause severeburns or other injuries. Do notpoint exhaust pipe toward controlpanel. Keep away from exhaustoutlet. Do not point exhaust pipe ...
Page 27 - Engine Prestart Checks
OM-289543 Page 23 � Complete Parts List is available at www.HobartWelders.com 4-6. Engine Prestart Checks Check all fluids daily. Engine must be coldand on a level surface. Unit is shipped withsynthetic blend 10W-30 engine oil. � Follow run-in procedure in engine manual. � This unit has a low oil pr...
Page 28 - Connecting Or Replacing The Battery; NGO’s
OM-289543 Page 24 � Complete Parts List is available at www.HobartWelders.com 4-7. Connecting Or Replacing The Battery 1 OFF RUN RUN/IDLE START OM-222 Page 1 allen_wrench NGO’s tools/ flathead philips head wrench pliers knife heavy-duty workclamp light-duty workclamp wirecutter frontcutter allen_set...
Page 29 - Weld Output Terminals; Connecting Weld Output Cables
OM-289543 Page 25 � Complete Parts List is available at www.HobartWelders.com 4-8. Weld Output Terminals 1 2 OFF RUN RUN/IDLE START Stop engine. Turn off power before connectingto weld output terminals. Do not use worn, damaged, under-sized, or repaired cables. 1 Positive Weld Output Terminal 2 Nega...
Page 31 - SECTION 5 – OPERATION; Front Panel Controls
OM-289543 Page 27 � Complete Parts List is available at www.HobartWelders.com SECTION 5 – OPERATION 5-1. Front Panel Controls 1 Engine Control Switch Use switch to start engine, select speed,and stop engine. In Run/Idle position, en-gine runs at idle speed at no load, and weld/power speed under load...
Page 33 - A. Stick Welding Procedure
OM-289543 Page 29 � Complete Parts List is available at www.HobartWelders.com 5-4. Stick Welding (SMAW) Guidelines A. Stick Welding Procedure Tools Needed: Equipment Needed: Weld current starts when electrodetouches workpiece. Weld current can damage elec-tronic parts in vehicles. Discon-nect both b...
Page 34 - B. Electrode And Amperage Selection Chart
OM-289543 Page 30 � Complete Parts List is available at www.HobartWelders.com B. Electrode And Amperage Selection Chart C. Striking An Arc Weld current starts when electrodetouches workpiece. 1 Electrode 2 Workpiece 3 Arc Scratch Technique Drag electrode across workpiece like strikinga match; lift e...
Page 35 - D. Positioning Electrode Holder; E. Poor Weld Bead Characteristics
OM-289543 Page 31 � Complete Parts List is available at www.HobartWelders.com D. Positioning Electrode Holder Groove Welds Fillet Welds 1 End View Of Work Angle 2 Side View Of Electrode Angle After learning to start and hold an arc, prac-tice running beads of weld metal on flatplates using a full el...
Page 36 - G. Conditions That Affect Weld Bead Shape; H. Electrode Movement During Welding
OM-289543 Page 32 � Complete Parts List is available at www.HobartWelders.com G. Conditions That Affect Weld Bead Shape Electrode Angle Arc Length Travel Speed � Weld bead shape is affected by elec- trode angle, arc length, travel speed,and thickness of base metal. 1 Angle Too Small 2 Correct Angle ...
Page 40 - Duty Cycle And Overheating
OM-289543 Page 36 � Complete Parts List is available at www.HobartWelders.com Burn-Through - weld metal melting completely through base metal resulting in holes where nometal remains. Possible Causes Corrective Actions Excessive heat input. Select lower amperage. Use smaller electrode. Increase and/...
Page 41 - Cold Weather Engine Operation
OM-289543 Page 37 � Complete Parts List is available at www.HobartWelders.com 5-6. Cold Weather Engine Operation 1 2 1 Run Position – For cold starts and en-gine warm up 2 Run/Idle Position – For use after engineis at operating temperature Carburetor Icing Carburetor icing causes the unit to drop be...
Page 42 - SECTION 6 – OPERATING AUXILIARY EQUIPMENT; Generator Power Receptacles
OM-289543 Page 38 � Complete Parts List is available at www.HobartWelders.com SECTION 6 – OPERATING AUXILIARY EQUIPMENT 6-1. Generator Power Receptacles 1 6 2 5 3 4 Use GFCI protection when operatingauxiliary equipment. If unit does nothave GFCI receptacles, use GFCI-protected extension cord. Do not...
Page 43 - GFCI Receptacle Information, Resetting, And Testing; Simultaneous Weld And Power
OM-289543 Page 39 � Complete Parts List is available at www.HobartWelders.com 6-2. GFCI Receptacle Information, Resetting, And Testing Use GFCI protection when operatingauxiliary equipment. If unit does nothave GFCI receptacles, use GFCI-protected extension cord. Do notuse GFCI receptacle to power l...
Page 46 - SECTION 7 – MAINTENANCE AND TROUBLESHOOTING; Routine Maintenance
OM-289543 Page 42 � Complete Parts List is available at www.HobartWelders.com SECTION 7 – MAINTENANCE AND TROUBLESHOOTING 7-1. Routine Maintenance Stop engine before maintaining. � See Engine Manual and Maintenance Label for important start-up, service, and storage information. Service Engine more o...
Page 47 - Maintenance Label
OM-289543 Page 43 � Complete Parts List is available at www.HobartWelders.com 7-2. Maintenance Label
Page 48 - Servicing Air Cleaner
OM-289543 Page 44 � Complete Parts List is available at www.HobartWelders.com 7-3. Servicing Air Cleaner 1 2 Stop engine. NOTICE – Do not run engine without air cleaner or with dirty element. Engine dam-age caused by using a damaged element isnot covered by the warranty. 1 Precleaner Wash precleaner...
Page 49 - Overload Protection
OM-289543 Page 45 � Complete Parts List is available at www.HobartWelders.com 7-4. Overload Protection OFF RUN RUN/IDLE START OM-222 Page 1 NGO’s tools/ helmet weldshield faceshield glasses hairdryer cclamp rpmmeter benchvise popriveter oilcan filtersocket hacksaw belttensiongauge sealant_1 snapring...
Page 50 - Changing Engine Oil, Oil Filter, And Fuel Filter
OM-289543 Page 46 � Complete Parts List is available at www.HobartWelders.com 7-5. Changing Engine Oil, Oil Filter, And Fuel Filter Stop engine and let cool. 1 Oil Drain Valve Change engine oil and filter according to en-gine owner’s manual. NOTICE – Close valve and valve cap before adding oil and r...
Page 51 - Adjusting Engine Speed
OM-289543 Page 47 � Complete Parts List is available at www.HobartWelders.com 7-6. Adjusting Engine Speed 1 OM-222 Page 1 allen_wrench NGO’s tools/ flathead philips head wrench pliers knife heavy-duty workclamp light-duty workclamp wirecutter frontcutter allen_set needlenose steelbrush nutdriver chi...
Page 52 - Fault Indicator; Servicing Optional Spark Arrestor (300924)
OM-289543 Page 48 � Complete Parts List is available at www.HobartWelders.com 7-7. Fault Indicator Flash Code Problem Possible Cause Potential Solution Not Illuminated No Fault Flashing Inverter Over-Temp Indicates the unit hasoverheated. The unit has shut down to allowthe fan to cool it. Operation ...
Page 53 - Troubleshooting; A. Welding Troubleshooting; B. Generator Power Troubleshooting
OM-289543 Page 49 � Complete Parts List is available at www.HobartWelders.com 7-9. Troubleshooting A. Welding Troubleshooting Trouble Remedy Low or no weld output; generatorpower output okay at AC receptacles. Check control settings. Check weld connections. Have Factory Authorized Service Agent chec...
Page 54 - C. Engine Troubleshooting
OM-289543 Page 50 � Complete Parts List is available at www.HobartWelders.com C. Engine Troubleshooting Trouble Remedy Engine will not crank. Check fuse F6, and replace if open (see Section 7-4 ). Check battery voltage. Check battery connections and tighten if necessary. Check plug PLG5 and plug PLG...
Page 55 - SECTION 8 – PARTS LIST; Recommended Spare Parts
OM-289543 Page 51 � Complete Parts List is available at www.HobartWelders.com SECTION 8 – PARTS LIST 8-1. Recommended Spare Parts Recommended Spare Parts Dia. Mkgs. Part No. Description Quantity 283588 Electric Fuel Pump (High Altitude) 1 280236 Receptacle, GFCI 15/20A 1 Vanguard 23 HP F6 239347 Fus...
Page 56 - SECTION 9 – ELECTRICAL DIAGRAMS
OM-289543 Page 52 SECTION 9 – ELECTRICAL DIAGRAMS Figure 9-1. Circuit Diagram
Page 58 - SECTION 10 – GENERATOR POWER GUIDELINES; 0-2. Grounding When Supplying Building Systems
OM-289543 Page 54 SECTION 10 – GENERATOR POWER GUIDELINES � The views in this section are intended to be representative of all engine/hydraulic-driven welder/generators. Your unit may differ from those shown. 10-1. Selecting Equipment 1 Generator Power Receptacles – NeutralBonded To Frame 2 3-Prong ...
Page 59 - 0-4. Approximate Power Requirements For Industrial Motors
OM-289543 Page 55 10-3. How Much Power Does Equipment Require? 1 Resistive Load A light bulb is a resistive load and requires aconstant amount of power. 2 Non-Resistive Load Equipment with a motor is a non-resistiveload and requires approximately six timesmore power while starting the motor thanwhen...
Page 61 - 0-6. Approximate Power Requirements For Contractor Equipment
OM-289543 Page 57 10-6. Approximate Power Requirements For Contractor Equipment Contractor Equipment Rating Starting Watts Running Watts Hand Drill 1/4 in. (6 mm) 350 350 3/8 in. (10 mm) 400 400 1/2 in. ( 13 mm) 600 600 Circular Saw 6-1/2 in. (165 mm) 500 500 7-1/4 in. (184 mm) 900 900 8-1/4 in. (21...
Page 63 - 0-9. Typical Connections To Standby Power; A. Cord Lengths For 120 Volt Loads
OM-289543 Page 59 10-9. Typical Connections To Standby Power 1. Utility Electrical Service 2. Transfer Switch 3. Fused Disconnect Switch (If Required) 4. Welder/Generator Output 5. Essential Loads Have only qualified persons performthese connections according to allapplicable codes and safety practi...
Page 64 - B. Cord Lengths For 240 Volt Loads
OM-289543 Page 60 B. Cord Lengths For 240 Volt Loads Use GFCI protection when operating auxiliary equipment. If unit does not have GFCI receptacles, use GFCI-protected extensioncord. Do not use GFCI receptacles to power life support equipment. Maximum Allowable Cord Length In ft (m) for Conductor Si...
Page 65 - SECTION 11 – DEFINITIONS; 1-1. Additional Safety Symbol Definitions
OM-289543 Page 61 � Complete Parts List is available at www.HobartWelders.com SECTION 11 – DEFINITIONS 11-1. Additional Safety Symbol Definitions � Some symbols are found only on CE products. Warning! Watch Out! There are possible hazards as shown by thesymbols. OM- Become trained and read the instr...
Page 67 - 2-2. Information About Default Weld Parameters And Settings; B. Temperature Specifications
OM-289543 Page 63 SECTION 12 – REGULATORY AND COMPLIANCE INFORMATION 12-1. Software Licensing Agreement The End User License Agreement and any third-party notices and terms and conditions pertaining to third-party software can be found at https://www.millerwelds.com/eula and are incorporated by refe...
Page 68 - Notes
Page 72 - Miller Electric Mfg. LLC; Owner’s Record; Please complete and retain with your personal records.; Resources Available; To locate a Service Center:
Miller Electric Mfg. LLC An Illinois Tool Works Company1635 West Spencer StreetAppleton, WI 54914 USA ORIGINAL INSTRUCTIONS – PRINTED IN USA © 2026 Miller Electric Mfg. LLC 2026-02 Owner’s Record Please complete and retain with your personal records. Model Name Serial/Style Number Purchase Date (Dat...