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