Contents
This manual should remain with the unit
Models 04758-2 6 kW NG, 7 kW LP 04759-2 12 kW NG, 12 kW LP
04760-2 13 kW NG, 15 kW LP
Installation and Owner’s Manual
HOW TO OBTAIN SERVICE
CONTENTS
OPERATION AND MAINTENANCE
INTRODUCTION
Introduction
Parts of the generator are rotating and/or hot
GENERAL HAZARDS
Despite the safe design of this generator
during operation. Exercise care near running generators
EXPLOSION HAZARDS
ELECTRICAL HAZARDS
FIRE HAZARDS
STANDARDS INDEX
1.3 SYSTEM SET LED
1.1 UNPACKING/INSPECTION
1.2 PROTECTION SYSTEMS
DANGER
Figure 1.1 - 7 kW, Single Cylinder GH-410 Engine
1.4 THE GENERATOR
Figure 1.2 - 12 kW/15 kW, V-twin GT-990/760 Engine
1.5.1 GENERATOR
1.5 SPECIFICATIONS
1.5.2 ENGINE
1.7 FUEL CONSUMPTION
1.8 RECONFIGURING THE FUEL SYSTEM
1.6 FUEL REQUIREMENTS AND RECOMMENDATIONS
DANGER
1.9.1 GENERATOR
1.9 LOCATION
1.8.2 12KW AND 15KW, 990CC ENGINES
Figure 1.4 - Demand Regulator
1.9.2 TRANSFER SWITCH 1.9.2.1 7 kW, 12 kW and 15 kW Units
1.10 BATTERY INSTALLATION
1.11 THE BATTERY
Figure 1.5 - Battery Cable Connections
2.1 BEFORE INITIAL START-UP
2.2 CHECK TRANSFER SWITCH OPERATION
2.3 ELECTRICAL CHECKS
2.4 GENERATOR TESTS UNDER LOAD
2.5 CHECKING AUTOMATIC OPERATION
Figure 2.2 - Placement of Regulator
2.6 ADJUSTING THE REGULATOR NATURAL GAS ONLY
Figure 2.1 - Dual Fuel Regulators
Figure 2.3 - Single Cylinder Engine Governor Adjustment
2.7 ENGINE GOVERNOR ADJUSTMENT
Figure 2.4 - V-twin Engine Governor Adjustment
Figure 2.5 - V-twin Full Load Speed Adjust Screw
3.2 USING THE AUTO/OFF/MANUAL SWITCH FIGURE
2.8 VOLTAGE REGULATOR ADJUSTMENT
3.1 BREAK-IN PROCEDURE
Figure 2.6 - Voltage Adjustment Potentiometer
3.4 SEQUENCE OF AUTOMATIC OPERATION
3.3 AUTOMATIC TRANSFER OPERATION
3.5 MANUAL TRANSFER OPERATION
3.5.1 TRANSFER TO GENERATOR POWER SOURCE
3.7.2 HIGH TEMPERATURE SWITCH
3.5.2 TRANSFER BACK TO UTILITY POWER SOURCE
3.7.1 LOW OIL PRESSURE SWITCH
Figure 3.2 - Manual Transfer Switch Operation
4.1 FUSE
Figure 3.3 - Low Oil Pressure and High Temperature Switches
4.2 CHECKING THE ENGINE OIL LEVEL
3.7.3 OVERCRANK
4.3 CHANGING THE ENGINE OIL
4.5 CHANGING THE ENGINE AIR CLEANER
4.3.2 OIL CHANGE PROCEDURE
4.4 CHANGING THE OIL FILTER
Figure 4.7 - 12 kW and 15 kW Engine Air Cleaner
4.7 BATTERY MAINTENANCE
Figure 4.6 - 7 kW, Engine Air Cleaner Location
Figure 4.8 - Setting the Spark Plug Gap
Figure 4.10 - Valve Clearance Adjustment
4.8 ADJUSTING VALVE CLEARANCE
4.9 COOLING SYSTEM
4.12.1 REMOVAL FROM SERVICE
4.12 OUT OF SERVICE PROCEDURE
4.12.2 RETURN TO SERVICE
4.10 ATTENTION AFTER SUBMERSION
4.13 SERVICE SCHEDULE
CAUSE
5.1 TROUBLESHOOTING GUIDE
PROBLEM
CORRECTION
ENGINE WIRING
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Section 6 - Electrical Data
CUSTOMER
CONTROL PANEL BOX
CONNECTION
Electrical Schematic - 12 & 15 kW - Drawing No. 0D8501-B
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Generac Power Systems, Inc
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Section 6 - Electrical Data
CONTROL PANEL BOX
225A
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224A
Electrical Schematic - 7 kW - Drawing No. 0D9014-C
Section 7 - Exploded Views and Parts Lists
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PART NO. QTY. DESCRIPTION
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PART NO. QTY. DESCRIPTION
27, 28
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35, 36, 40
PART NO. QTY
DESCRIPTION
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DESCRIPTION
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14 20
1.8 FT
1.25 FT
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3 FT
2.6 FT
1.33 FT
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Section 7 - Exploded Views and Parts Lists
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Section 7 - Exploded Views and Parts Lists
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Section 7 - Exploded Views and Parts Lists
Section 8 - Mounting
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ALL DIMENSIONS IN MILLIMETERS INCHES
Guardian Air-cooled 7 kW, 12 Drawing No. 0D3739-B
Section 9 - Notes
PURCHASER’S/OWNER’S WARRANTY RESPONSIBILITIES
YOUR WARRANTY RIGHTS AND OBLIGATIONS
MANUFACTURER’S EMISSION CONTROL SYSTEM WARRANTY COVERAGE
CALIFORNIA AND FEDERAL EMISSION CONTROL WARRANTY STATEMENT
EMISSION CONTROL SYSTEM WARRANTY
EMISSION RELATED PARTS INCLUDE THE FOLLOWING
WARRANTY SCHEDULE
GENERAC POWER SYSTEMS TWO YEAR LIMITED WARRANTY FOR GUARDIAN
PREPACKAGED EMERGENCY AUTOMATIC STANDBY GENERATORS
THIS WARRANTY SHALL NOT APPLY TO THE FOLLOWING