Manuals / Generac Power Systems / Lawn and Garden / Portable Generator

Generac Power Systems 04759-0, 04758-0 Your Generator, 1 - 7 kW, Single Cylinder GH-410 Engine

Models: 04760-0 04759-0 04758-0

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Section 1 — General Information

Guardian Air-cooled 7 kW, 12 kW and 15 kW Generators

1.4YOUR GENERATOR

Figure 1.1 – 7 kW, Single Cylinder GH-410 Engine

	Control Panel
	Data Decal
Exhaust
Enclosure	Air Filter
	Fuel Regulator

Oil Filter

Battery Compartment

Figure 1.2 – 12 kW/15 kW, V-twin GT-990 Engine

	Data	Control
	Decal	Panel
Oil Dipstick	Air Filter

Exhaust

Enclosure

Fuel Regulator

Battery Compartment

Oil Filter

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Generac Power Systems 04759-0, 04758-0, 04760-0 owner manual Your Generator, 1 - 7 kW, Single Cylinder GH-410 Engine

Contents

Not intended for use as Primary Power in place of utility Models 04758-0 6 kW NG, 7 kW LP 04759-0 12 kW NG, 12 kW LP04760-0 13 kW NG, 15 kW LP DEADLY EXHAUST FUMES. OUTDOOR INSTALLATION ONLYINTRODUCTION ‹ CONTENTS‹ OPERATION AND MAINTENANCE ‹ HOW TO OBTAIN SERVICEIntroduction Parts of the generator are rotating and/or hot GENERAL HAZARDSDANGER Despite the safe design of this generator‹ STANDARDS INDEX ELECTRICAL HAZARDSFIRE HAZARDS EXPLOSION HAZARDSDANGER 1.1 UNPACKING/INSPECTION1.2 PROTECTION SYSTEMS 1.3 SYSTEM SET LEDFigure 1.1 - 7 kW, Single Cylinder GH-410 Engine 1.4 YOUR GENERATORFigure 1.2 - 12 kW/15 kW, V-twin GT-990 Engine Section 1 - General Information 1.5 SPECIFICATIONS‹ 1.5.1 GENERATOR ‹ 1.5.2 ENGINEDANGER 1.8 RECONFIGURING THE FUEL SYSTEM1.6 FUEL REQUIREMENTS AND RECOMMENDATIONS 1.7 FUEL CONSUMPTIONFigure 1.4 - Demand Regulator 1.9.2 TRANSFER SWITCH 1.9.2.1 7 kW, 12 kW and 15 kW Units1.9 LOCATION 1.9.1 GENERATORUse tools with insulated handles Wear rubber gloves and boots 1.10 BATTERY INSTALLATION1.11 THE BATTERY Figure 1.5 - Battery Cable ConnectionsThe following procedures are to be observed 2.2 CHECK TRANSFER SWITCH OPERATION2.1 BEFORE INITIAL START-UP 2.3 ELECTRICAL CHECKS2.5 CHECKING AUTOMATIC OPERATION 2.4 GENERATOR TESTS UNDER LOAD2.7.1 7 KW UNITS 2.6 ADJUSTING THE REGULATOR NATURAL GAS ONLY2.7 ENGINE GOVERNOR ADJUSTMENT Figure 2.2 - Placement of RegulatorFigure 2.5 - Voltage Adjustment Potentiometer 2.8 VOLTAGE REGULATOR ADJUSTMENT3.1 BREAK-IN PROCEDURE Figure 2.3 - Engine Governor Adjustment‹ 3.2.2 “OFF” POSITION 3.3 AUTOMATIC TRANSFER OPERATION3.4 SEQUENCE OF AUTOMATIC OPERATION ‹ 3.2.1 “AUTO” POSITION‹ 3.5.1 TRANSFER TO GENERATOR POWER SOURCE ‹ 3.5.2 TRANSFER BACK TO UTILITY POWER SOURCE3.5 MANUAL TRANSFER OPERATION Figure 3.2 - Manual Transfer Switch OperationFigure 3.3 - Low Oil Pressure and High Temperature Switches 3.6 SETTING THE EXERCISE TIMER‹ 3.7.1 LOW OIL PRESSURE SWITCH ‹ 3.7.2 HIGH TEMPERATURE SWITCHOil Dipstick and Fill 4.1 FUSE4.2 CHECKING THE ENGINE OIL LEVEL 4.3 CHANGING THE ENGINE OILFigure 4.7 - 12 kW and 15 kW Engine Air Cleaner 4.5 CHANGING THE ENGINE AIR CLEANER‹ 4.3.2 OIL CHANGE PROCEDURE Figure 4.6 - 7 kW, Engine Air Cleaner LocationUse tools with insulated handles Wear rubber gloves and boots 4.7 BATTERY MAINTENANCEFigure 4.8 - Setting the Spark Plug Gap 4.6 SPARK PLUGSFigure 4.9 - Cooling Vent Locations 4.8 ADJUSTING VALVE CLEARANCEFigure 4.10 - Valve Clearance Adjustment 4.9 COOLING SYSTEM4.10 ATTENTION AFTER SUBMERSION 4.12 OUT OF SERVICE PROCEDURE‹ 4.12.2 RETURN TO SERVICE ‹ 4.12.1 REMOVAL FROM SERVICEATTENTION It is recommended that all service work 4.13 SERVICE SCHEDULEbe performed by your nearest Generac Authorized Dealer CORRECTION 5.1 TROUBLESHOOTING GUIDEPROBLEM CAUSESection 6 - Electrical Data CONTROL PANEL BOX Section 6 - Electrical DataCUSTOMER CONNECTIONSection 6 - Electrical Data DIAGRAM KEY BA - BRUSH ASSEMBLY BCR - BATTERY CHARGE RELAYSection 6 - Electrical Data Guardian Air-cooled 7 kW, 12 kW and 15 kW Generators Wiring Diagram - 7 kW - Drawing No. 0D9013ENGINE WIRING Section 6 - Electrical DataCLOSEST TO BEARING Section 6 - Electrical DataCONTROL PANEL BOX CUSTOMER CONNECTIONSection 6 - Electrical Data Section 6 - Electrical Data Section 7 - Exploded Views and Parts Lists PART NO. QTY Section 7 - Exploded Views and Parts ListsPART NO. QTY DESCRIPTIONGuardian Air-cooled 7 kW, 12 kW and 15 kW Generators Section 7 - Exploded Views and Parts ListsControl Panel - Drawing No. 0D8503-E PART NO. QTY. DESCRIPTION Section 7 - Exploded Views and Parts ListsPART NO. QTY. DESCRIPTION 69 16A, 16B, 17 70 7, 48, 49, 50, 51, 52, 53, 54 Kit ContainsSection 7 - Exploded Views and Parts Lists 66 2, 5, 19, 20, 39, 40, 47, 64, 93 67 8BARBED ELBOW 90 3/8NPT X 3/8 L0CKTITE Section 7 - Exploded Views and Parts ListsDESCRIPTION DESCRIPTIONSection 7 - Exploded Views and Parts Lists PLATE, BACKING GT990 WITH OIL COOL Section 7 - Exploded Views and Parts ListsDESCRIPTION DESCRIPTIONSection 7 - Exploded Views and Parts Lists 1.25 FT Section 7 - Exploded Views and Parts ListsDESCRIPTION 1.8 FTGuardian Air-cooled 7 kW, 12 kW and 15 kW Generators Section 7 - Exploded Views and Parts Lists12 kW and 15 kW Generator - Drawing No. 0D3417-B 2.83 FT Section 7 - Exploded Views and Parts ListsDESCRIPTION 2.6 FTSection 7 - Exploded Views and Parts Lists DESCRIPTION Section 7 - Exploded Views and Parts ListsASSEMBLY, ROCKER COVER BREATHER DESCRIPTIONGuardian Air-cooled 7 kW, 12 kW and 15 kW Generators Section 7 - Exploded Views and Parts ListsGN410 Engine - Drawing No. 0D3539-B Part DESCRIPTION Section 7 - Exploded Views and Parts ListsFOR GT 760 ENGINE ONLY Section 7 - Exploded Views and Parts ListsDESCRIPTION Section 7 - Exploded Views and Parts Listsand 15 kW Generators ALL DIMENSIONS IN MILLIMETERS INCHESSection 8 - Mounting Guardian Air-cooled 7 kW, 12 Drawing No. 0D3739-BGuardian Air-cooled 7 kW, 12 kW and 15 kW Generators Section 9 - NotesCALIFORNIA AND FEDERAL EMISSION CONTROL WARRANTY STATEMENT YOUR WARRANTY RIGHTS AND OBLIGATIONSMANUFACTURER’S EMISSION CONTROL SYSTEM WARRANTY COVERAGE PURCHASER’S/OWNER’S WARRANTY RESPONSIBILITIESSection 10 - Warranty EMISSION CONTROL SYSTEM WARRANTYEMISSION RELATED PARTS INCLUDE THE FOLLOWING GUARDIAN “EMERGENCY AUTOMATIC STANDBY GENERATORS” WARRANTY SCHEDULEGENERAC POWER SYSTEMS STANDARD TWO YEAR LIMITED WARRANTY FOR Section 10 - Warranty