Generac Power Systems 004992-0, 004992-1, 37kW NG, 40kW LP Introduction, ‹ HOW to Obtain Service

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INTRODUCTION

Thank you for purchasing this model of the Guardian standby generator product line by Generac Power Systems, Inc.

Every effort was expended to make sure that the information and instructions in this manual are both accurate and current at the time the manual was writ- ten. However, the manufacturer reserves the right to change, alter or otherwise improve this product(s) at any time without prior notice.

‹READ THIS MANUAL THOROUGHLY

If any portion of this manual is not understood, con- tact the nearest authorized service 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 serv- ice or operation that may be hazardous if performed incorrectly or carelessly. Observe them carefully. Their definitions are as follows:

DANGER

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

After this heading, read instructions that, if not strictly complied with, may result in personal 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 is as follows:

This symbol points out important safety informa- ! tion that, if not followed, could endanger personal

safety and/or property of 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. Generac 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.

‹OPERATION AND MAINTENANCE

It is the operator's responsibility to perform all safety checks, to make sure that all maintenance for safe operation is performed promptly, and to have the equipment checked periodically by a Generac author- ized service dealer. Normal maintenance 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 maintenance service.

Proper maintenance and care of the generator ensures a minimum number of problems and keep operating expenses at a minimum. See the authorized service dealer for service aids and accessories.

Operating instructions presented in this manual assume that the standby electric system has been installed by an authorized service dealer or other competent, qualified contractor. Installation of this equipment is not a “do-it-yourself” project.

‹HOW TO OBTAIN SERVICE

When the generator requires servicing or repairs, contact an authorized service dealer for assistance. Service technicians are factory-trained and are capa- ble of handling all service needs.

When contacting an authorized service dealer about parts and service, always supply the complete model number of the unit as given on the front cover of this manual or on the DATA CARD affixed to the unit.

AUTHORIZED SERVICE

DEALER LOCATION

To locate the nearest AUTHORIZED SERVICE DEALER,

please call this number:

1-800-333-1322

OR

Locate us on the web at:

www.guardiangenerators.com

Generac® Power Systems, Inc.

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Contents Liquid-cooled, Prepackaged Standby Generators Introduction ‹ Operation and Maintenance‹ HOW to Obtain Service ‹ Read this Manual ThoroughlyTable of Contents General Hazards Electrical Hazards Automatic System Operation Transfer SwitchGenerator Generator AC Connection Systems‹ 1.7.3 LOW Coolant Level Switch ‹ 1.7.1 LOW OIL Pressure Switch‹ 1.7.2 High Coolant Temperature Switch Generator Fuel SystemUnpacking Lifting the Generator‹ 1.10.1 Generator Specifications SpecificationsReconfiguring the Fuel System ‹ 1.10.2 Engine SpecificationsEngine OIL Recommendations Torque SpecificationsBefore Installation Coolant RecommendationsBasic Standby Electric System Generator LocationGenerator Mounting Support ‹ 2.1.1 Nfpa StandardsGenerator AC Neutral Connections Emergency Circuit Isolation MethodTotal Circuit Isolation Method ‹ 2.9.1 PRE-PACKAGED ATS Transfer Switch Signal ConnectionsBattery Installation ‹ 2.9.2 GTS-TYPE ATSPreparation Before START-UP ‹ 3.2.2 Fault Indicator Leds Using AN Engineered GTS Transfer Switch‹ 3.2.1 AUTO/OFF/MANUAL Switch Control Console ComponentsManual Transfer START-UP Engine Governor Adjustments‹ 3.2.5 SET Exercise Time Switch ‹ 3.2.6 System Ready LEDAutomatic Operation Weekly Exercise CycleCooling System Overload Protection for Engine DC Electrical SystemChecking Fluid Levels ‹ 4.5.9 Inspect Engine Governor ‹ 4.5.2 Check Battery‹ 4.5.8 Check FAN Belt ‹ 4.5.1 Check Engine OIL Level‹ 4.5.11 Changing the Engine AIR Cleaner Miscellaneous Maintenance‹ 4.6.1 Cleaning the Generator ‹ 4.5.13 Coolant Change‹ 4.6.3 Battery Maintenance ‹ 4.6.4 Battery ReplacementScheduled Maintenance Service Maintenance Interval InformationLevel Maintenance Level Troubleshooting Points Problem Cause CorrectionElectrical Data Electrical Data Electrical Data Electrical Data Carrier Rear Bearing Boot Battery Cable Assy WireHold Down Battery Battery Post Covwer BlackSee Latch Detail Intake Duct HSB Assy GRD Wire 99HSBAssembly BASE-DOOR Ground Wire Duct Discharge RH FrontGenerac Power Systems, Inc Cover Front Panel HSB Assy 2A 12V UL BatteryControl BOX HSB Cover TOP Panel HSBGenerac Power Systems, Inc Flexplate 3.9L HSB COVER, Flywheel AccessASSEMBLY, Resistor MACHINING, 3.9L EnginePump VENTURI,3.9L Cryslr HSB 22FAN Tank Coolant RecoveryRadiator Copper Brass Radiator Support L/H SideTo Engine Plate AIR Cleaner TOP Base AIR Cleaner PlateHold Down AIR Cleaner Flange Fuel InletLeads STR-390--40AD HSB 433MM LONG3.9L Chrysler Rotor 390 30KW 1P Direct HSBRotor 390 40KW 1P Direct HSB Rear Bearing Carrier 390/DRCTWYE, Pipe 3.9L Chrysler NUT TOP Lock FL M12-1.75OUT Exhaust Flange 2 PipeInstallation Diagram Guardian 40kW Liquid-cooled Generators Guardian 40kW Liquid-cooled Generators This Warranty Shall not Apply to the Following