Hobart Welding Products OM-477 manual Engine Prestart Checks, mm Full Gasoline Capacity 9 qt 8.5 L

Page 19

4-4. Engine Prestart Checks

1/2 in

(13 mm)

Full

Gasoline

Full

Capacity: 9 qt (8.5 L)

Full

Top View

12

Above

Below

40° F (4° C)

40° F (4° C)

Check all fluids daily. Engine must be cold and on a level surface.

.This unit has a low oil pressure shutdown switch. However, some conditions may cause engine damage before the en- gine shuts down. Check oil lev- el often and do not use the oil pressure shutdown system to monitor oil level.

1Carburetor Heat Selector Pipe

2Manifold

Turn pipe toward manifold in cold weather and away from manifold in warm weather.

3 Fuel

Add fresh fuel before starting engine the first time (see mainte- nance label for specifications). Fill fuel tank up to 1/2 in. (13 mm) from top to allow room for expansion. Open fuel shut-off valve. Check fuel level on a cold engine before use each day.

4 Oil

After fueling, check oil with unit on level surface. If oil is not up to full mark on dipstick, add oil (see main- tenance label).

5 Coolant

Add coolant if level is below bottom of radiator filler neck.

Engine coolant is a mixture of water and ethylene glycol base anti- freeze. Add anti-freeze to mixture if using unit in temperatures below 0° F (–18°C).

Keep radiator, air intake, and cool- ing fins clean and free of dirt.

YIncorrect engine tempera- ture can damage engine. Do not run engine without a

properly working 180° F (80° C) thermostat and a 7 psi (48 kPa) radiator cap.

.To improve cold weather starting:

Keep battery in good condition. Store battery in warm area off concrete surface.

Use correct grade oil for cold weather.

Tools Needed:

5/16 in

ST-801 026-A / Ref. ST-159 727-C / Ref. ST-159 728-A

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Contents Processes OM-477Description From Hobart to You Table of Contents Page 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 SpecificationsFuel Consumption Dimensions, Weights, And Operating AnglesDimensions WeightDuty Cycle And Overheating AC Auxiliary PowerMinutes Welding Minutes Resting 5 KVA/KW Single-Phase Auxiliary Power Plant No Weld Load Optional AC Power Plant Curves12.5 KVA/KW Three-Phase Auxiliary Power Plant No Weld Load 100 Volt-Ampere CurvesDC Volts CC/DC Standard AC Amperes CV/DC Models with Optional CV-3 ModuleInstalling Muffler InstallationInstalling Welding Generator Connecting The Battery13 mm Full Gasoline Capacity 9 qt 8.5 L Engine Prestart ChecksTop View 10 100% Duty Cycle Connecting To Weld Output TerminalsSelecting Weld Cable Sizes 100 ft 30 m Or LessStop engine Remote 14 Receptacle RC3 Information Optional, See SectionTerminal Strip 3T Connections Optional Socket InformationFront Panel Controls See Section Operating Welding GeneratorStop engine and fix trouble if either warning light goes on Ampere Range SwitchDo not switch under load Description Of Front Panel Controls See SectionExample Combination remote amperage control Remote Control OptionalVolt Duplex And Optional Gfci Receptacles Operating Auxiliary EquipmentX 10 a + 120 V x 5 a = 3.0 kVA/kW Volt Duplex Receptacle OptionalFront Connecting Optional Auxiliary Power PlantMaintenance and Troubleshooting Maintenance Label Overload Protection Servicing Air CleanerTo Clean air filter Do not clean housing with air hoseStandard filter Changing Engine Oil And FilterStop engine and let cool Standard Oil Filter Cation makes it difficult to changeChanging Fuel Filter Inspecting And Cleaning Optional Spark Arrestor MufflerStop engine and let cool 1850 rpm Max Adjusting Engine Weld/Power SpeedAdjusting Governor Sensitivity Adjusting Engine Idle SpeedTrouble Remedy Adjusting Optional High Altitude CarburetorTroubleshooting WeldingAuxiliary Power See engine manual Coolant temperature gets too high see SectionCheck Engine Control switch, and replace if necessary EngineOM-477 Circuit Diagram For Welding Generator For Standard Models Electrical DiagramsOM-477 193 967-A Selecting Equipment Auxiliary Power GuidelinesGrounding 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 Requirements240 120 Ground Typical Connections To Supply Standby PowerCurrent Load Watts Amperes Selecting Extension Cord Use Shortest Cord PossibleOM-477 114 113 112 111 110 109 108 107 106 105 104 103 102 101 100 Parts ListIncludes 39 43 Dia Part Description Mkgs Quantity 025 2523 GeneratorGenerator -1 Item Includes 2539CB1,2 139 Control Box w/Components -3 Item Support ServiceHobart Welding Products Contact your Distributor forCall

OM-477 specifications

Hobart Welding Products has long been recognized for delivering high-quality welding equipment tailored to the needs of both professionals and DIY enthusiasts. Among its distinguished offerings is the OM-477, a versatile multi-process welder designed to excel in a variety of welding applications. This machine integrates an array of features and technologies that cater to both novice and experienced welders.

One of the defining characteristics of the OM-477 is its multi-process capability, which allows users to perform MIG, TIG, and stick welding with ease. This flexibility makes it an ideal choice for a wide range of projects, from automotive repair to light fabrication tasks. The seamless transition between processes is facilitated by a user-friendly interface that simplifies the selection and adjustment of settings, ensuring a smoother workflow.

The OM-477 is powered by a robust, industrial-grade inverter technology that provides high arc stability and increased energy efficiency. This not only enhances performance but also reduces power consumption, making it an environmentally friendly option. Welders can operate at various output ranges, accommodating different materials, including mild steel, stainless steel, and aluminum, thus ensuring versatility in project execution.

Another notable feature of the OM-477 is its portability. Weighing in at a manageable size, this welder is equipped with a durable carry handle, allowing for easy movement between job sites or within the workshop. This characteristic complements its user-friendly setup, making it accessible for individuals of all skill levels.

Safety is a pivotal aspect of the design of the OM-477. It incorporates multiple safety features such as a thermal overload protection mechanism, ensuring that the machine operates well within safe parameters. This is crucial for preventing overheating, thereby extending the welder's lifespan and reducing maintenance costs over time.

Additionally, the OM-477 offers precise control over welding parameters, enabling users to fine-tune their settings for optimal results. Whether tackling thin sheet metal or thicker materials, the welder’s adjustment capabilities ensure a clean, professional finish.

In summary, the Hobart OM-477 stands as a testament to innovative welding technology, combining multi-process functionality, inverter efficiency, portability, and safety into a single machine. It is a reliable tool designed to empower welders at any skill level, making it a worthy addition to any welding arsenal. With the OM-477, Hobart Welding Products continues to champion quality and user satisfaction in the welding industry.
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