Hobart Welding Products OM-477 Servicing Air Cleaner, Overload Protection, To Clean air filter

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7-3. Servicing Air Cleaner

Y Stop engine.

Y Do not run engine without air cleaner or with dirty element.

Clean or replace element if dirty or damaged. Replace element yearly or after six cleanings.

1 Dust Cap

5

4

3

2

1

2 Baffle

3 Element

4 Plastic Fins

5 Housing

To Clean air filter:

Wipe off cap and housing. Remove cap and dump out dust. Wipe dust from inside cap and housing with damp cloth. Remove element and reinstall cap.

Y Do not clean housing with air hose.

Clean element with compressed air only. Keep nozzle at least 1 in (25 mm) from inside of element. Max. air pressure: 100 psi (690 kPa). Do not remove plastic fins. Replace ele- ment if it has holes or damaged gaskets.

Reinstall element and cap (cap arrows pointing up).

BlowInspect

aircleaner1 6/96 – ST-153 929-B / ST-153 585 / Ref. ST-191 898 / Ref. S-0698-B

7-4. Overload Protection

Y Stop engine.

. If any fuse or circuit breaker continues to open, contact Fac- tory Authorized Service Agent.

1 Magnetic Shutdown

Switch MS1

2 Fuse F (See Parts List)

Fuse F protects magnetic shutdown switch MS1. If fuse F opens, the engine stops.

Check fuse and replace if open.

3 Circuit Breaker CB3 (Optional)

4 Circuit Breaker CB4 (Optional)

CB3 protects the 115 volt ac output and CB4 protects the 24 volt ac out- put to optional Remote 14 recep- tacle RC3 and terminal strip 3T. If a circuit breaker opens, 24 or 115 volts ac output stops.

1

3

4

Press button to reset breaker.

2

Tools Needed:

Ref. ST-159 730-A / Ref. ST-191 898

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Contents OM-477 ProcessesDescription From Hobart to You Table of Contents Page Electric Shock can kill Symbol UsageArc Welding Hazards ARC Rays can burn eyes and skinEngine Hazards Engine Exhaust Gases can kill Battery Explosion can BlindMoving Parts can cause injury Engine Heat can cause fireRadiation can cause interference Principal Safety StandardsEMF Information ARC Welding can cause interferenceUN Choc É Lectrique peut tuer Signification des symbolesConsignes DE SÉ Curité Lire Avant Utilisation LES Fumé ES ET LES GAZ peuvent ê tre dangereuxDES PIÈ CES Chaudes peuvent provoquer des brû lures graves LE Soudage peut provoquer un in- cendie ou une explosionDES Particules Volantes peuvent blesser les yeux LE Bruit peut affecter l’ouïeLA Chaleur DU Moteur peut pro- voquer un incendie DES Organes Mobiles peuvent provoquer des blessures’EXPLOSION DE LA Batterie peut LA Chute DE L’APPAREIL peut blesserLE Soudage À L’ARC risque de provoquer des interfé rences Principales normes de sé curitéInformation sur les champs é lectromagné tiques Consignes relatives aux stimulateurs cardiaquesWeld, Power, And Engine Specifications SpecificationsSymbols And Definitions DefinitionsWeight Dimensions, Weights, And Operating AnglesDimensions Fuel ConsumptionAC Auxiliary Power Duty Cycle And OverheatingMinutes Welding Minutes Resting Optional AC Power Plant Curves 5 KVA/KW Single-Phase Auxiliary Power Plant No Weld Load12.5 KVA/KW Three-Phase Auxiliary Power Plant No Weld Load AC Amperes CV/DC Models with Optional CV-3 Module Volt-Ampere CurvesDC Volts CC/DC Standard 100Connecting The Battery InstallationInstalling Welding Generator Installing MufflerEngine Prestart Checks 13 mm Full Gasoline Capacity 9 qt 8.5 LTop View 100 ft 30 m Or Less Connecting To Weld Output TerminalsSelecting Weld Cable Sizes 10 100% Duty CycleSocket Information Remote 14 Receptacle RC3 Information Optional, See SectionTerminal Strip 3T Connections Optional Stop engineOperating Welding Generator Front Panel Controls See SectionDescription Of Front Panel Controls See Section Ampere Range SwitchDo not switch under load Stop engine and fix trouble if either warning light goes onRemote Control Optional Example Combination remote amperage controlOperating Auxiliary Equipment Volt Duplex And Optional Gfci ReceptaclesVolt Duplex Receptacle Optional X 10 a + 120 V x 5 a = 3.0 kVA/kWConnecting Optional Auxiliary Power Plant FrontMaintenance and Troubleshooting Maintenance Label Do not clean housing with air hose Servicing Air CleanerTo Clean air filter Overload ProtectionCation makes it difficult to change Changing Engine Oil And FilterStop engine and let cool Standard Oil Filter Standard filterInspecting And Cleaning Optional Spark Arrestor Muffler Changing Fuel FilterStop engine and let cool Adjusting Engine Weld/Power Speed 1850 rpm MaxAdjusting Engine Idle Speed Adjusting Governor SensitivityWelding Adjusting Optional High Altitude CarburetorTroubleshooting Trouble RemedyAuxiliary Power Engine Coolant temperature gets too high see SectionCheck Engine Control switch, and replace if necessary See engine manualOM-477 Electrical Diagrams Circuit Diagram For Welding Generator For Standard ModelsOM-477 193 967-A Auxiliary Power Guidelines Selecting EquipmentGrounding Generator To Truck Or Trailer Frame Earth ground if supplying Grounding When Supplying Building SystemsHow Much Power Does Equipment Require? Amperes x Volts = WattsIndustrial Motors Rating Starting Watts Running Watts Approximate Power Requirements For Industrial MotorsApproximate Power Requirements For Farm/Home Equipment Farm/Home Equipment Rating Starting Watts Running WattsApproximate Power Requirements For Contractor Equipment Contractor Rating Starting Watts Running WattsSingle-Phase Induction Motor Starting Requirements Power Required To Start MotorHow Much Power Can Generator Supply? KVA/HP x HP xTypical Connections To Supply Standby Power 240 120 GroundSelecting Extension Cord Use Shortest Cord Possible Current Load Watts AmperesOM-477 Parts List 114 113 112 111 110 109 108 107 106 105 104 103 102 101 100Includes 39 43 Dia Part Description Mkgs Quantity 025 Generator 2523Generator -1 Item 2539 IncludesCB1,2 139 Control Box w/Components -3 Item Service SupportContact your Distributor for Hobart Welding ProductsCall

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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