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Generac 04675-3 The Generator, 1 - 7 kW, Single Cylinder GH-410 Engine, General Information

Models: 04674-2 04675-3 04673-2

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Section 1 — General Information

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

1.4THE GENERATOR

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

Oil Data

Dipstick Decal

Exhaust

Enclosure

Control

Panel

GFCI

Outlet

Fuel

Regulator

Fuel

Inlet

	Oil Filter	Battery
	Oil Filter	Compartment
		Compartment

Figure 1.2 – 12 kW/15 kW, V-twin GT-990/760 Engine

Exhaust Enclosure

		Control
Oil	Data	Panel
Oil	Data
Dipstick	Decal
		GFCI
		Outlet
		Fuel
		Regulator
		Fuel
		Inlet
Oil Filter	Battery	Composite Base
Oil Filter	Compartment
	Compartment

Generac® Power Systems, Inc. 5

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Generac 04675-3, 04673-2 The Generator, 1 - 7 kW, Single Cylinder GH-410 Engine, 2 - 12 kW/15 kW, V-twin GT-990/760 Engine

Contents

Installation and Owner’s Manual Models 04673-2 6 kW NG, 7 kW LP 04674-2 12 kW NG, 12 kW LP04675-3 13 kW NG, 15 kW LP This manual should remain with the unitsafety and/or property of others INTRODUCTIONAUTHORIZED DEALER LOCATION DANGERIntroduction Despite the safe design of this generator GENERAL HAZARDSDANGER Please read all hazards carefully‹ STANDARDS INDEX ELECTRICAL HAZARDSFIRE HAZARDS EXPLOSION HAZARDSDANGER 1.1 UNPACKING/INSPECTION1.2 PROTECTION SYSTEMS 1.3 SYSTEM SET LEDFigure 1.2 - 12 kW/15 kW, V-twin GT-990/760 Engine 1.4 THE GENERATORGenerac Power Systems, Inc Figure 1.1 - 7 kW, Single Cylinder GH-410 EngineSection 1 - General Information 1.5 SPECIFICATIONS‹ 1.5.1 GENERATOR ‹ 1.5.2 ENGINEFigure 1.3 - Demand Regulator 1.8 RECONFIGURING THE FUEL SYSTEM1.6 FUEL REQUIREMENTS AND RECOMMENDATIONS 1.7 FUEL CONSUMPTION1.9.2.1 7 kW, 12 kW and 15 kW Units 1.9 LOCATION1.9.2 TRANSFER SWITCH 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 LOADDo not make any unnecessary adjustments 2.6 ADJUSTING THE REGULATOR NATURAL GAS ONLY2.7 ENGINE GOVERNOR ADJUSTMENT Figure 2.2 - Placement of RegulatorFigure 2.4 - V-twin Engine Governor Adjustment 2.8 VOLTAGE REGULATOR ADJUSTMENTFigure 2.3 - Single Cylinder Engine Governor Adjustment Figure 2.5 - V-twin Full Load Speed Adjust Screw3.2 USING THE AUTO/OFF/MANUAL SWITCH FIGURE 3.1 BREAK-IN PROCEDURE3.3 AUTOMATIC TRANSFER OPERATION 3.4 SEQUENCE OF AUTOMATIC OPERATION‹ 3.5.1 TRANSFER TO GENERATOR POWER SOURCE 3.5 MANUAL TRANSFER OPERATION‹ 3.5.2 TRANSFER BACK TO UTILITY POWER SOURCE Figure 3.2 - Manual Transfer Switch OperationLow Oil Switch 3.6 SETTING THE EXERCISE TIMER3.7 PROTECTION SYSTEMS Figure 3.3 - Low Oil Pressure and High Temperature SwitchesOil Dipstick and Fill 4.1 FUSE4.2 CHECKING THE ENGINE OIL LEVEL 4.3 CHANGING THE ENGINE OILFigure 4.6 - 7 kW, Engine Air Cleaner Location 4.5 CHANGING THE ENGINE AIR CLEANER4.4 CHANGING THE OIL FILTER Oil Drain Hose Oil FilterUse tools with insulated handles Wear rubber gloves and boots 4.7 BATTERY MAINTENANCE4.6 SPARK PLUGS Figure 4.8 - Setting the Spark Plug GapThe maximum ambient temperature for the generator is 48.9 C 104 F 4.8 ADJUSTING VALVE CLEARANCE4.9 COOLING SYSTEM Figure 4.10 - Valve Clearance Adjustment‹ 4.12.2 RETURN TO SERVICE 4.12 OUT OF SERVICE PROCEDURE4.10 ATTENTION AFTER SUBMERSION 4.11 CORROSION PROTECTION4.13 SERVICE SCHEDULE CORRECTION 5.1 TROUBLESHOOTING GUIDEPROBLEM CAUSEENGINE WIRING 24 Generac Power Systems, IncSection 6 - Electrical Data CUSTOMER Generac Power Systems, IncSection 6 - Electrical Data CONTROL PANEL BOXGenerac Air-cooled 7 kW, 12 kW and 15 kW Generators Electrical Schematic - 12 & 15 kW - Drawing No. 0D8501-B26 Generac Power Systems, Inc Section 6 - Electrical DataGenerac Air-cooled 7 kW, 12 kW and 15 kW Generators Electrical Schematic - 12 & 15 kW - Drawing No. 0D8501-BGenerac Power Systems, Inc Section 6 - Electrical DataENGINE WIRING 28 Generac Power Systems, IncSection 6 - Electrical Data CUSTOMER Generac Power Systems, IncSection 6 - Electrical Data CONTROL PANEL BOXGenerac Air-cooled 7 kW, 12 kW and 15 kW Generators Electrical Schematic - 7 kW - Drawing No. 0D9014-C30 Generac Power Systems, Inc Section 6 - Electrical DataGenerac Air-cooled 7 kW, 12 kW and 15 kW Generators Electrical Schematic - 7 kW - Drawing No. 0D9014-CGenerac Power Systems, Inc Section 6 - Electrical Data32 Generac Power Systems, Inc Section 7 - Exploded Views and Parts ListsPART NO. QTY. DESCRIPTION Section 7 - Exploded Views and Parts ListsPART NO. QTY. DESCRIPTION Control Panel - Drawing No. 0E7974-G Section 7 - Exploded Views and Parts Lists34 Generac Power Systems, Inc Generac Air-cooled 7 kW, 12 kW and 15 kW GeneratorsPART NO. QTY Section 7 - Exploded Views and Parts ListsPART NO. QTY DESCRIPTION16B 16A and Parts Lists36 Generac Power 1310PART NO. QTY Section 7 - Exploded Views and Parts ListsPART NO. QTY DESCRIPTION38 Generac Power Systems, Inc Section 7 - Exploded Views and Parts ListsSCREW SHOULDER 8MM M6-1.0 X Section 7 - Exploded Views and Parts ListsITEM PART NO. QTY. DESCRIPTION ITEM PART NO. QTY. DESCRIPTION40 Generac Power Systems, Inc Section 7 - Exploded Views and Parts Lists14 20 1.25 FT Section 7 - Exploded Views and Parts ListsDESCRIPTION 1.8 FT12 kW and 15 kW Generator - Drawing No. 0D3417-J Section 7 - Exploded Views and Parts Lists42 Generac Power Systems, Inc Generac Air-cooled 7 kW, 12 kW and 15 kW Generators3 FT Section 7 - Exploded Views and Parts ListsDESCRIPTION 2.6 FT44 Generac Power Systems, Inc Section 7 - Exploded Views and Parts ListsDESCRIPTION Section 7 - Exploded Views and Parts ListsGN410 Engine - Drawing No. 0E9180-B Part Section 7 - Exploded Views and Parts Lists46 Generac Power Systems, Inc Generac Air-cooled 7 kW, 12 kW and 15 kW GeneratorsDESCRIPTION Section 7 - Exploded Views and Parts Lists48 Generac Power Systems, Inc Section 7 - Exploded Views and Parts ListsDESCRIPTION Section 7 - Exploded Views and Parts ListsSection 8 - Mounting Dimensions50 Generac Power Systems, Inc ALL DIMENSIONS IN MILLIMETERS INCHESSection 9 - Notes Generac Power Systems, IncGenerac Air-cooled 7 kW, 12 kW and 15 kW Generators PURCHASER’S/OWNER’S WARRANTY RESPONSIBILITIES CALIFORNIA EMISSION CONTROL WARRANTY STATEMENTYOUR WARRANTY RIGHTS AND OBLIGATIONS MANUFACTURER’S EMISSION CONTROL SYSTEM WARRANTY COVERAGESection 10 - Warranty EMISSION CONTROL SYSTEM WARRANTYEMISSION RELATED PARTS INCLUDE THE FOLLOWING WARRANTY SCHEDULE GENERAC POWER SYSTEMS STANDARD TWO-YEAR LIMITED WARRANTYFOR GENERAC RESIDENTIAL AND LIGHT COMMERCIAL UNITS Section 10 - Warranty