INTRODUCTION

Thank you for purchasing this model of the GUARDIAN® product line by Generac Power Systems, Inc. This model is a compact, high performance, air-cooled, engine driven generator designed to supply electrical power to operate electrical loads where no utility power is available.

READ THIS MANUAL THOROUGHLY

If you do not understand any portion of this manual, contact your nearest GENERAC/GUARDIAN® Authorized Dealer for starting, operating and servicing procedures.

Throughout this publication, and on tags and decals affixed to the generator, DANGER, WARNING, CAUTION and NOTE blocks are used to alert you to special instruction about a particular operation that may be hazardous if performed incorrectly or carelessly. Observe them carefully. Their definitions are as follows:

------------- DANGER -------------

After this heading, you can read instructions that, if not strictly complied with, will result in personal injury or property damage.

------------- WARNING -------------

After this heading, you can read instructions that, if not strictly complied with, may result in personal injury or property damage.

------------- CAUTION -------------

After this heading, you can read instructions that, if not strictly complied with, could result in damage to equipment and/or property.

NOTE: After this heading, you can read explanatory statements that require special emphasis. These safety warnings cannot eliminate the hazards that they indicate. Common sense and strict compliance with the special instructions while performing the service are essential to preventing accidents.

Four commonly used safety symbols accompany the DANGER, WARNING and CAUTION blocks. The type of information each indicates follows:

This symbol points out important safety information that, if not followed, could endanger personal safety and/or property of you and others.

This symbol points out potential explosion hazard.

This symbol points out potential fire hazard.

This symbol points out potential electrical shock hazard.

The operator is responsible for proper and safe use of the equipment. We strongly recommend that the operator read this Owner’s Manual and thoroughly

understand all instructions before using this equipment. We also strongly recommend instructing other users to properly start and operate the unit. This prepares them if they need to operate the equipment in an emergency.

CAUTION! Always disconnect spark plug wire and place the wire where it cannot contact the spark plug to prevent accidental starting when setting up, transporting, adjusting or making repairs to your generator.

The generator produces dangerously high voltage that can cause extremely hazardous electrical shock. Avoid contact with bare wires, terminals, etc. Never permit any unqualified person to operate or service the generator.

Never handle any kind of electrical cord or device while standing in water, while barefoot or while hands or feet are wet. Dangerous electrical shock will result.

The National Electric Code requires the frame and external electrically conductive parts of the generator be properly connected to an approved earth ground. Local electrical codes may also require proper grounding of the generator. Consult with a local electrician for grounding requirements in your area.

Use a ground fault circuit interrupter in any damp or highly conductive area (such as metal decking or steel work).

Do not use worn, bare, frayed or otherwise damaged electrical cord sets with the generator.

Operate generator only on level surfaces and where it will not be exposed to excessive moisture, dirt, dust or corrosive vapors.

Gasoline is highly FLAMMABLE and its vapors are EXPLOSIVE. Do not permit smoking, open flames, sparks or heat in the vicinity while handling gasoline. Avoid spilling gasoline on a hot engine. Comply with all laws regulating storage and handling of gasoline.

Never add fuel while unit is running.

Do not overfill the fuel tank. Always allow room for fuel expansion. If tank is overfilled, fuel can overflow onto a hot engine and cause FIRE or an EXPLOSION.

Never store generator with fuel in tank where gasoline vapors might reach an open flame, spark or pilot light (as on a furnace, water heater or clothes dryer). FIRE or EXPLOSION may result.

Generator exhaust gases contain DEADLY carbon monoxide gas.This dangerous gas, if breathed in sufficient concentrations, can cause unconsciousness or even death. Operate this equipment only in the open air where adequate ventilation is available.

Allow at least 2 feet of clearance on all sides of generator or you could damage the unit. Never operate the unit inside any room or enclosure where the free flow of cooling air into and out of the unit might be obstructed. Review “Cold Weather Operation” on page 12.

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Generac 004451, 004582, 004451 ,004582 owner manual Introduction

004451, 004582, 004451 ,004582 specifications

Generac is a leading manufacturer of power generation equipment, known for its robust and reliable systems. Among its vast lineup, the Generac 004451 and 004582 portable generators stand out due to their impressive features, advanced technologies, and user-friendly characteristics, making them suitable for various applications such as home backup, outdoor activities, and job sites.

The Generac 004451 model boasts a powerful 2,500-watt output, making it ideal for powering essential appliances during outages or for use in recreational settings. Its compact design enhances portability, allowing users to easily transport it wherever needed. This generator features a durable frame designed to withstand rugged environments, including a fold-down handle for convenient storage. It is equipped with a reliable 50-state compliant engine, ensuring that it meets stringent environmental regulations while delivering dependable power.

On the other hand, the Generac 004582 model is designed for users needing a bit more power, featuring a 3,200-watt maximum output. Like the 004451, it emphasizes portability and ease of use, but it also incorporates a more advanced inverter technology. This innovation ensures that the generator produces clean, stable power, making it safe for sensitive electronics like smartphones, laptops, and medical devices. The 004582's lightweight construction allows for effortless transport, while its fold-down handle and never-flat wheels enhance mobility.

Both models are engineered with user-friendly controls and features such as easy-to-read fuel gauges and a low-oil shutdown system, which prevents engine damage by automatically shutting down the generator when the oil level is too low. Additionally, these generators include multiple AC outlets, offering versatility in powering various devices simultaneously.

Safety is paramount in Generac's design philosophy, as evident in the inclusion of features such as circuit breakers to prevent overloads. Additionally, they are equipped with a robust cooling system that allows for prolonged operation without overheating.

Overall, the Generac 004451 and 004582 portable generators provide a perfect blend of power, portability, and technological advancements, making them suitable for emergency backup power, outdoor events, and job site requirements. With a strong emphasis on reliability and user convenience, Generac continues to be a trusted name in the field of power generation.