Generac Power Systems 04389-1, 04390-1, 04456-1 Introduction, Authorized Dealer Location

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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 automatically supply electrical power to operate critical loads dur- ing a utility power failure.

This unit is factory installed in an all-weather, metal enclo- sure that is intended exclusively for outdoor installation. This generator will operate using either vapor withdrawn liquid propane (LP) or natural gas (NG).

‹READ THIS MANUAL THOROUGHLY

If any portion of this manual is not understood, contact Generac or the 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 per- sonnel to special instructions about a particular operation that may be hazardous if performed incor- rectly or carelessly. Observe them carefully. Their def- initions are as follows:

DANGER

After this heading, read instructions that, if not strictly complied with, will result in serious person- al injury, including death, in addition to property damage.

After this heading, read instructions that, if not strictly complied with, may result in serious person- al injury or property damage.

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

NOTE:

After this heading, read explanatory statements that require special emphasis.

These safety warnings cannot eliminate the hazards that they indicate. Common sense and strict compli- ance 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 informa- ! tion 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. Genrac strongly recommends that the operator read this Owner's Manual and thor- oughly understand all instructions before using this equipment. Generac also strongly recommends instructing other users to properly start and operate the unit. This prepares them if they need to operate the equipment in an emergency.

‹CONTENTS

This manual contains pertinent owner’s information, including warranty, electrical diagrams, exploded views and lists of repair parts, for three different Guardian models:

04389-1 – 6 kW NG, 7 kW LP, single-cylinder GH- 410 Engine

04456-1 – 12 kW NG, 12 kW LP, V-twin GT-990 Engine

04390-1 – 13 kW NG, 15 kW LP, V-twin GT-990 Engine

‹OPERATION AND MAINTENANCE

It is the operator's responsibility to perform all safe- ty checks, to make sure that all maintenance for safe operation is performed promptly, and to have the equipment checked periodically by a Generac/Guardian Authorized Dealer. Normal main- tenance service and replacement of parts are the responsibility of the owner/operator and, as such, are not considered defects in materials or workmanship within the terms of the warranty. Individual operating habits and usage contribute to the need for mainte- nance service.

Proper maintenance and care of the generator ensures a minimum number of problems and keep operating expenses at a minimum. See a Generac/Guardian Authorized Dealer for service aids and accessories.

‹HOW TO OBTAIN SERVICE

When the generator requires servicing or repairs, simply contact a Generac/Guardian Authorized Dealer for assistance. Service technicians are factory- trained and are capable of handling all service needs.

When contacting a Generac/Guardian Authorized Dealer or the factory about parts and service, always supply the complete model number and serial number of your unit as given on its data decal, which is locat- ed on the generator. See Figure 1.1 or Figure 1.2 in Section 1.6 for decal location.

Model No. ____________ Serial No. ______________

AUTHORIZED

DEALER LOCATION

To locate the nearest GENERAC/GUARDIAN

AUTHORIZED DEALER, please call this number:

1-800-333-1322

DEALER LOCATION INFORMATION

CAN BE OBTAINED AT THIS NUMBER.

Generac® Power Systems, Inc.

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Contents Installation Introduction Authorized Dealer LocationTroubleshooting Post Installation Start-up AdjustmentsMaintenance Introduction Inside Front CoverGeneral Hazards Electrical Hazards ‹ Standards IndexSystem SET LED UNPACKING/INSPECTIONProtection Systems Your Generator 7 kW, Single Cylinder GH-410 Engine‹ 1.5.2 Engine Specifications‹ 1.5.1 Generator Fuel Consumption Reconfiguring the Fuel SystemFuel Requirements Recommendations 1 7 KW, 410CC EngineGenerator Transfer SwitchLocation 2.1 7 kW, 12 kW and 15 kW UnitsBattery Installation BatteryElectrical Checks Check Transfer Switch OperationBefore Initial START-UP Generator Tests Under Load Checking Automatic Operation1 7 KW Units Adjusting the Regulator Natural GAS onlyEngine Governor Adjustment Voltage Regulator Adjustment 2 12 KW and 15 KW Units‹ 3.2.3 Manual Position BREAK-IN ProcedureAutomatic Transfer Operation ‹ 3.2.1 Auto PositionSequence of Automatic Operation Manual Transfer Operation‹ 3.7.1 LOW OIL Pressure Switch Setting the Exercise Timer‹ 3.5.2 Transfer Back to Utility Power Source ‹ 3.7.2 High Temperature Switch‹ 3.7.4 Overspeed Checking the Engine OIL LevelApproximate Crank Cycle Times Changing the OIL Filter ‹ 4.3.2 OIL Change ProcedureChanging the Engine OIL ‹ 4.3.1 Engine OIL RecommendationsBattery Maintenance Spark PlugsAdjusting GH-410/GT-990 Valve Clearance Cooling System‹ 4.12.2 Return to Service OUT of Service Procedure‹ 4.12.1 Removal from Service Corrosion ProtectionService Schedule SYSTEM/COMPONENT Procedure FrequencyTroubleshooting Guide Problem Cause CorrectionElectrical Data Customer Battery Utility Battery Charger Utility Connection BCR Customer Connections Neutral Exploded Views and Parts Lists Part NO.QTY. Description Exploded Views and Parts Lists QTY Description Exploded Views and Parts Lists BOX GTS Load Center Exploded Views and Parts Lists COVER, 12 Position GTS Load Center Kit Contains BUSHING, Governor Lower 138 122 KNOB, AIR Cleaner 28 31 ADAPTOR, Engine Exploded Views and Parts Lists Stator 12KW Exploded Views and Parts Lists ASSEMBLY, Connecting ROD Exploded Views and Parts Lists SCREW, Taptite M6-1.0X8 Yellow Chrome Engine only Mounting Dimensions Guardian Air-cooled 7 kW, 12 kW and 15 kW Generators Guardian Air-cooled 7 kW, 12 kW and 15 kW Generators PURCHASER’S/OWNER’S Warranty Responsibilities Your Warranty Rights and ObligationsMANUFACTURER’S Emission Control System Warranty Coverage Emission Control System Warranty Emission Related Parts Include the FollowingWarranty Schedule This Warranty Shall not Apply to the Following

04389-1, 04456-1, 04390-1 specifications

Generac Power Systems is synonymous with reliable and innovative power solutions for both residential and commercial applications. Among its diverse product lineup, the Generac 04390-1, 04456-1, and 04389-1 stand out due to their robust features, advanced technologies, and user-focused characteristics.

The Generac 04390-1 is a portable generator designed for versatility and efficiency. It is equipped with a powerful OHV engine that enables it to deliver up to 3500 running watts and 4375 starting watts, making it suitable for various applications, such as home backup during outages or powering tools on job sites. The generator features a built-in PowerRUSH technology, which provides a 40% more starting capacity than traditional models, allowing it to handle more demanding appliances and tools simultaneously. Additionally, its lightweight and compact design enhance portability, complemented by a sturdy handle and flat-free wheels.

Moving on to the Generac 04456-1, this model offers a greater output with 7500 running watts and 9400 starting watts. Ideal for larger homes or work environments, it is powered by a heavy-duty, 420cc engine and designed for optimal performance. The unit incorporates an electric start feature for easy operation and includes a low-oil shutdown system that protects the engine from damage, providing peace of mind to users. The reinforced roll-cage design ensures durability, while its quiet operation keeps noise levels to a minimum, making it suitable for more noise-sensitive environments.

Lastly, the Generac 04389-1 generator is particularly characterized by its dual-fuel capability, allowing users to run it on either gasoline or propane. This flexibility ensures seamless operation in various situations, with 5500 running watts on gasoline and 4950 running watts on propane. The model’s advanced engineering includes an easy-to-read fuel gauge, ensuring that users can monitor fuel levels without hassle. This generator is also equipped with a heavy-duty, full-wrap steel frame for resistance against impacts and wear, making it perfect for outdoor use.

Collectively, the Generac 04390-1, 04456-1, and 04389-1 models embody a commitment to quality and innovation. With their powerful engines, enhanced technologies, and user-friendly features, these generators provide peace of mind through reliable power solutions, catering to a multitude of needs for both residential and commercial users alike. Whether for emergency backup or regular use, Generac’s offerings ensure that power is always on hand when it’s needed the most.