Generac Power Systems 04389-2, 04456-2, 04390-2 Introduction Inside Front Cover, Operation

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Table of Contents

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

Introduction	Inside Front Cover
Read This Manual Thoroughly		IFC
Contents		IFC
Operation and Maintenance	............................	IFC
How to Obtain Service		IFC
Authorized Dealer Locator Number		IFC
Safety Rules		2
Standards Index		3

Section 3 – Operation		14
3.1	Break-in Procedure	14
3.2	Using the Auto/Off/Manual Switch	14
3.3	Automatic Transfer Operation	14
3.4	Sequence of Automatic Operation	15
3.5	Manual Transfer Operation	15
3.6	Setting the Exercise Timer	16
3.7	Protection Systems	16

Section 1 – General Information		4
1.1	Unpacking/Inspection	4
1.2	Protection Systems	4

1.3NEC Requirement for Arc Fault Circuit

	Interruption Breaker for Bedrooms	4
1.4	The Generator	5
1.5	Specifications	6
1.6	System Set LED	7
1.7	Fuel Requirements and Recommendations....	7
1.8	Fuel Consumption	7
1.9	Reconfiguring the Fuel System	7
1.10	Location	8
1.11	Battery Installation	9
1.12	The Battery	9
Section 2 – Post Installation Start-up
	and Adjustments	10
2.1	Before Initial Startup	10
2.2	Check Transfer Switch Operation	10
2.3	Electrical Checks	10
2.4	Generator Tests Under Load	11
2.5	Checking Automatic Operation	11

2.6Adjusting the Regulator (Natural Gas Only) ..12

2.7	Engine Governor Adjustment	13
2.8	Voltage Regulator Adjustment	13

Section 4 – Maintenance		17
4.1	Fuse	17
4.2	Checking the Engine Oil Level	17
4.3	Changing the Engine Oil	18
4.4	Changing the Oil Filter	18
4.5	Changing the Engine Air Cleaner	18
4.6	Spark Plug(s)	19
4.7	Battery Maintenance	19

4.8Adjusting GH-410/GT-990 Valve Clearance ..20

4.9	Cooling System		20
4.10	Attention After Submersion		21
4.11	Corrosion Protection		21
4.12	Out of Service Procedure		21
4.13	Service Schedule		22
Section 5 – Troubleshooting			23
5.1	Troubleshooting Guide		23
Section 6		– Electrical Data	24
Section 7		– Exploded Views and
		Parts Lists	32
Section 8		– Mounting Dimensions	53
Section 9		– Notes	54
Section 10 – Warranty			56

Generac® Power Systems, Inc. 1

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Contents Installation Authorized Dealer Location IntroductionIntroduction Inside Front Cover Post Installation Start-up AdjustmentsMaintenance TroubleshootingGeneral Hazards ‹ Standards Index Electrical HazardsUNPACKING/INSPECTION Protection SystemsBreaker for Bedrooms 7 kW, Single Cylinder GH-410 Engine GeneratorSpecifications ‹ 1.5.1 Generator‹ 1.5.2 Engine Fuel Consumption Reconfiguring the Fuel SystemSystem SET LED Fuel Requirements RecommendationsGenerator Transfer SwitchLocation 2 12KW and 15KW, 990CC EnginesBattery Battery InstallationCheck Transfer Switch Operation Before Initial START-UPElectrical Checks Checking Automatic Operation Generator Tests Under LoadAdjustment Screw Adjusting the Regulator Natural GAS only2 12 KW and 15 KW Units Engine Governor AdjustmentVoltage Regulator Adjustment 1 7 KW Units‹ 3.2.2 OFF Position BREAK-IN ProcedureAutomatic Transfer Operation ‹ 3.2.1 Auto PositionSequence of Automatic Operation Manual Transfer Operation‹ 3.7.2 High Temperature Switch Setting the Exercise Timer‹ 3.5.2 Transfer Back to Utility Power Source ‹ 3.7.1 LOW OIL Pressure SwitchChecking the Engine OIL Level Approximate Crank Cycle Times‹ 3.7.4 Overspeed ‹ 4.3.1 Engine OIL Recommendations ‹ 4.3.2 OIL Change ProcedureChanging the Engine OIL Changing the OIL FilterSpark Plugs Battery MaintenanceCooling System Adjusting GH-410/GT-990 Valve ClearanceCorrosion Protection OUT of Service Procedure‹ 4.12.1 Removal from Service ‹ 4.12.2 Return to ServiceBe performed by the nearest Guardian Authorized Dealer Service ScheduleProblem Cause Correction Troubleshooting GuideElectrical Data Customer Battery Utility Battery Charger Utility Connection BCR SW1 Exploded Views and Parts Lists QTY Description Exploded Views and Parts Lists Circuit Breaker 40A X 2P Exploded Views and Parts Lists BOX GTS Load Center Exploded Views and Parts Lists COVER, 12 Position GTS Load Center 140 Sleeve Exploded Views and Parts Lists KNOB, AIR Cleaner 28 31 ADAPTOR, Engine Exploded Views and Parts Lists Stator 12KW Exploded Views and Parts Lists PIN, Piston D20 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 Your Warranty Rights and Obligations MANUFACTURER’S Emission Control System Warranty CoveragePURCHASER’S/OWNER’S Warranty Responsibilities Emission Related Parts Include the Following Emission Control System WarrantyWarranty Schedule