Model Nos.
004992-137kW NG, 40kW LP
SHOULD ATTEMPT INSTALLATION
Owner’s Manual
AUTHORIZED SERVICE DEALER LOCATION
OPERATION AND MAINTENANCE
HOW TO OBTAIN SERVICE
INTRODUCTION
Table of Contents
INTRODUCTION
GENERAL HAZARDS
DANGER
ELECTRICAL HAZARDS
FIRE HAZARDS
EXPLOSION HAZARDS
1.2TRANSFER SWITCH
1.1GENERATOR
1.3AUTOMATIC SYSTEM OPERATION
1.4GENERATOR AC CONNECTION SYSTEMS
1.7.1 LOW OIL PRESSURE SWITCH
1.7.2 HIGH COOLANT TEMPERATURE SWITCH
1.7.3 LOW COOLANT LEVEL SWITCH
Figure 1.4 - Low Oil Pressure Switch
1.7.7 LOW BATTERY
1.7.8 ALARM RESET
1.8.1 UNPACKING PRECAUTIONS
Figure 1.7 - Printed Circuit Board Assembly
1.10 SPECIFICATIONS
1.12 RECONFIGURING THE FUEL SYSTEM
1.10.1 GENERATOR SPECIFICATIONS
1.10.2 ENGINE SPECIFICATIONS
1.13 TORQUE SPECIFICATIONS
1.16 BEFORE INSTALLATION
2.1STANDBY GENERATOR INSTALLATION
1.14 ENGINE OIL RECOMMENDATIONS
2.2GENERATOR LOCATION
2.3GENERATOR MOUNTING AND SUPPORT
2.4BASIC STANDBY ELECTRIC SYSTEM
2.1.1 NFPA STANDARDS
2.5EMERGENCY CIRCUIT ISOLATION METHOD
2.6TOTAL CIRCUIT ISOLATION METHOD
2.8GENERATOR AC NEUTRAL CONNECTIONS
Figure 2.1 – Basic Standby Electric System
2.9TRANSFER SWITCH SIGNAL CONNECTIONS
2.10BATTERY INSTALLATION
2.9.1 PRE-PACKAGEDATS
2.9.2 GTS-TYPEATS
2.11.2 TRANSFER SWITCH
2.11 PREPARATION BEFORE START-UP
2.11.3 FUEL SYSTEM
2.11.4 GENERATOR SET LUBRICATION
3.1USING AN ENGINEERED “GTS” TRANSFER SWITCH
Pos2 OFF — ATS Application Included switch
GTS Mode Operation
3.2.1 AUTO/OFF/MANUAL SWITCH
3.4ENGINE GOVERNOR ADJUSTMENTS
3.2.5 SET EXERCISE TIME SWITCH
Figure 3.2 — Engine Governor Adjustment
DIP SWITCH
Figure 3.2 - “Set Exercise Time” Switch
3.6AUTOMATIC OPERATION
3.7WEEKLY EXERCISE CYCLE
3.5RETRANSFER AND SHUTDOWN
4.4.2 BATTERY FLUID
4.3OVERLOAD PROTECTION FOR
ENGINE DC ELECTRICAL SYSTEM
4.4CHECKING FLUID LEVELS
4.5MAINTENANCE OWNER/ OPERATOR CAN PERFORM
DANGER
4.6MISCELLANEOUS MAINTENANCE
4.6.1 CLEANING THE GENERATOR
4.5.11 CHANGING THE ENGINE AIR CLEANER
4.6.2 BATTERY
4.6.3 BATTERY MAINTENANCE
4.6.4 BATTERY REPLACEMENT
DANGER
4.7SCHEDULED MAINTENANCE
Service Maintenance Interval Information
•Turn off the battery charger
•Remove the negative battery cable
Maintenance
Level
Tasks
Level
Maintenance
Level
Level
Level
TROUBLESHOOTING POINTS
PROBLEM
CAUSE
CORRECTION
Section 6 - Electrical Data
Wiring Diagram — Engine — Drawing No. 0E8115-A
24 Generac Power Systems, Inc
Guardian 40kW Liquid-cooledGenerators
Generac Power Systems, Inc.
Section 6 - Electrical Data
26 Generac Power Systems, Inc
Section 6 - Electrical Data
Guardian 40kW Liquid-cooledGenerators
Generac Power Systems, Inc.
Section 6 - Electrical Data
2 CARRIER REAR BEARING
ITEM
PART NO
DESCRIPTION
Section 7 - Exploded Views and Parts
30 32
ITEM
PART NO
DESCRIPTION
Section 7 - Exploded Views and Parts
32 Generac Power Systems, Inc
Section 7 - Exploded Views and Parts
ITEM
PART NO
DESCRIPTION
ITEM
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Section 7 - Exploded Views and Parts
ITEM
PART NO
DESCRIPTION
ITEM
9 15 10 20 1 A
ITEM
PART NO
DESCRIPTION
Section 7 - Exploded Views and Parts
TO ENGINE
ITEM
PART NO
DESCRIPTION
033212
Section 7 - Exploded Views and Parts
Guardian 40kW Liquid-cooledGenerators
Alternator — Drawing No. 0E5146-B
LEADS
ITEM
PART NO
DESCRIPTION
0E5093A
ITEM
PART NO
DESCRIPTION
ITEM
Section 8 — Installation Diagram
Installation Diagram — Drawing No. 0E8422-A
Generac Power Systems, Inc.
Guardian 40kW Liquid-cooledGenerators
44 Generac Power Systems, Inc
Section 9 - Notes
Guardian 40kW Liquid-cooledGenerators
Generac Power Systems, Inc.
Section 9 - Notes
Guardian 40kW Liquid-cooledGenerators
Section 10 – Warranty
WARRANTY SCHEDULE
THIS WARRANTY SHALL NOT APPLY TO THE FOLLOWING
GENERAC POWER SYSTEMS, INC