Problem, Cause | Generac Power Systems 04758-2, 04759-2, 04760-2

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Generac Power Systems 04758-2, 04759-2, 04760-2 owner manual Troubleshooting Guide, Problem, Cause, Correction

Contents

04760-2 13 kW NG, 15 kW LP Models 04758-2 6 kW NG, 7 kW LP 04759-2 12 kW NG, 12 kW LPThis manual should remain with the unit Installation and Owner’s Manual ‹ OPERATION AND MAINTENANCE ‹ CONTENTS‹ HOW TO OBTAIN SERVICE INTRODUCTION Introduction Despite the safe design of this generator GENERAL HAZARDSParts of the generator are rotating and/or hot during operation. Exercise care near running generators FIRE HAZARDS ELECTRICAL HAZARDSEXPLOSION HAZARDS ‹ STANDARDS INDEX 1.2 PROTECTION SYSTEMS 1.1 UNPACKING/INSPECTION1.3 SYSTEM SET LED DANGER Figure 1.1 - 7 kW, Single Cylinder GH-410 Engine 1.4 THE GENERATORFigure 1.2 - 12 kW/15 kW, V-twin GT-990/760 Engine ‹ 1.5.1 GENERATOR 1.5 SPECIFICATIONS‹ 1.5.2 ENGINE 1.6 FUEL REQUIREMENTS AND RECOMMENDATIONS 1.8 RECONFIGURING THE FUEL SYSTEM1.7 FUEL CONSUMPTION DANGER 1.8.2 12KW AND 15KW, 990CC ENGINES 1.9 LOCATION1.9.1 GENERATOR Figure 1.4 - Demand Regulator 1.11 THE BATTERY 1.10 BATTERY INSTALLATION1.9.2 TRANSFER SWITCH 1.9.2.1 7 kW, 12 kW and 15 kW Units Figure 1.5 - Battery Cable Connections 2.1 BEFORE INITIAL START-UP 2.2 CHECK TRANSFER SWITCH OPERATION2.3 ELECTRICAL CHECKS 2.5 CHECKING AUTOMATIC OPERATION 2.4 GENERATOR TESTS UNDER LOAD Figure 2.2 - Placement of Regulator 2.6 ADJUSTING THE REGULATOR NATURAL GAS ONLYFigure 2.1 - Dual Fuel Regulators Figure 2.4 - V-twin Engine Governor Adjustment 2.7 ENGINE GOVERNOR ADJUSTMENTFigure 2.3 - Single Cylinder Engine Governor Adjustment Figure 2.5 - V-twin Full Load Speed Adjust Screw 3.1 BREAK-IN PROCEDURE 2.8 VOLTAGE REGULATOR ADJUSTMENT3.2 USING THE AUTO/OFF/MANUAL SWITCH FIGURE Figure 2.6 - Voltage Adjustment Potentiometer 3.5 MANUAL TRANSFER OPERATION 3.3 AUTOMATIC TRANSFER OPERATION3.4 SEQUENCE OF AUTOMATIC OPERATION ‹ 3.5.1 TRANSFER TO GENERATOR POWER SOURCE ‹ 3.7.1 LOW OIL PRESSURE SWITCH ‹ 3.5.2 TRANSFER BACK TO UTILITY POWER SOURCE‹ 3.7.2 HIGH TEMPERATURE SWITCH Figure 3.2 - Manual Transfer Switch Operation 4.2 CHECKING THE ENGINE OIL LEVEL Figure 3.3 - Low Oil Pressure and High Temperature Switches4.1 FUSE ‹ 3.7.3 OVERCRANK ‹ 4.3.2 OIL CHANGE PROCEDURE 4.5 CHANGING THE ENGINE AIR CLEANER4.3 CHANGING THE ENGINE OIL 4.4 CHANGING THE OIL FILTER Figure 4.6 - 7 kW, Engine Air Cleaner Location 4.7 BATTERY MAINTENANCEFigure 4.7 - 12 kW and 15 kW Engine Air Cleaner Figure 4.8 - Setting the Spark Plug Gap Figure 4.10 - Valve Clearance Adjustment 4.8 ADJUSTING VALVE CLEARANCE4.9 COOLING SYSTEM ‹ 4.12.2 RETURN TO SERVICE 4.12 OUT OF SERVICE PROCEDURE‹ 4.12.1 REMOVAL FROM SERVICE 4.10 ATTENTION AFTER SUBMERSION 4.13 SERVICE SCHEDULE PROBLEM 5.1 TROUBLESHOOTING GUIDECAUSE CORRECTION ENGINE WIRING 24 Generac Power Systems, IncSection 6 - Electrical Data CUSTOMER CONTROL PANEL BOXCONNECTION 26 Generac Power Systems, Inc Electrical Schematic - 12 & 15 kW - Drawing No. 0D8501-B Section 6 - Electrical Data Section 6 - Electrical Data 28 Generac Power Systems, Inc Section 6 - Electrical Data 225A 30 Generac Power Systems, Inc224A Electrical Schematic - 7 kW - Drawing No. 0D9014-C 32 Generac Power Systems, Inc Section 7 - Exploded Views and Parts Lists PART NO. QTY. DESCRIPTION 34 Generac Power Systems, Inc PART NO. QTY. DESCRIPTION 27, 28 36 Generac Power Systems, Inc35, 36, 40 DESCRIPTION PART NO. QTY 38 Generac Power Systems, Inc DESCRIPTION 14 20 40 Generac Power Systems, Inc 1.25 FT 1.8 FT 42 Generac Power Systems, Inc 3 FT 2.6 FT1.33 FT 44 Generac Power Systems, Inc DESCRIPTION 46 Generac Power Systems, Inc DESCRIPTION 48 Generac Power Systems, Inc DESCRIPTION ALL DIMENSIONS IN MILLIMETERS INCHES 50 Generac Power Systems, IncSection 8 - Mounting Guardian Air-cooled 7 kW, 12 Drawing No. 0D3739-B Section 9 - Notes MANUFACTURER’S EMISSION CONTROL SYSTEM WARRANTY COVERAGE YOUR WARRANTY RIGHTS AND OBLIGATIONSPURCHASER’S/OWNER’S WARRANTY RESPONSIBILITIES CALIFORNIA AND FEDERAL EMISSION CONTROL WARRANTY STATEMENT EMISSION RELATED PARTS INCLUDE THE FOLLOWING EMISSION CONTROL SYSTEM WARRANTY PREPACKAGED EMERGENCY AUTOMATIC STANDBY GENERATORS GENERAC POWER SYSTEMS TWO YEAR LIMITED WARRANTY FOR GUARDIANWARRANTY SCHEDULE THIS WARRANTY SHALL NOT APPLY TO THE FOLLOWING

Generac Power Systems 04758-2, 04759-2, 04760-2 Troubleshooting Guide, Problem, Cause, Correction

Models: 04758-2, 04759-2, 04760-2