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Table of Contents
Guardian Liquid-cooled 40 kW Generator
Generac
®
Power Systems, Inc. 1
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
Section 1 – General Information ..................4
1.1 Unpacking/Inspection ....................................4
1.2 The Generator................................................4
1.3 Generator AC Connection Systems ................4
1.4 Prepackaged Transfer Switch ........................4
1.5 Automatic System Operation ........................4
1.6 Main Circuit Breaker ....................................5
1.7 Engine Protective Devices ..............................5
1.8 Specifications ................................................5
1.9 Fuel Requirements and
Recommendations..........................................6
1.10 Engine Oil Recommendations........................7
1.11 Coolant ..........................................................7
1.12 Emission Control System ..............................7
Section 2 – Installation ....................................8
2.1 Basic Standby Electric System ......................8
2.2 Emergency Circuit Isolation Method ..............9
2.3 Total Circuit Isolation Method........................9
2.4 Grounding the Generator ..............................9
2.5 Generator AC Neutral Connections ................9
2.6 Transfer Switch Start Signal Connections ....9
2.7 Battery Installation ......................................10
2.8 Preparation Before Start-up ........................11
Section 3 – Operation ....................................12
3.1 Control Console Components ......................12
3.2 Using the Auto/Off/Manual Switch................12
3.3 Automatic Transfer Operation ....................13
3.4 Sequence of Automatic Operation................13
3.5 Engine Heater ................................................13
3.6 Weekly Exercise Cycle..................................14
Section 4 – Maintenance ..............................14
4.1 Checking the Engine Oil Level......................14
4.2 Changing the Engine Oil and Filter ..............15
4.3 Changing the Engine Air Cleaner ................15
4.4 Spark Plugs ................................................16
4.5 Battery Maintenance ....................................16
4.6 Cooling System ............................................16
4.7 Overload Protection for
Engine DC Electrical System ......................17
4.8 DC Fuse ......................................................17
4.9 Engine Coolant ............................................17
4.10 Miscellaneous Maintenance..........................17
4.11 Out of Service Procedure ............................18
4.12 Service Schedule..........................................19
Section 5 – Troubleshooting ........................20
5.1 Troubleshooting Guide ................................20
Section 6 – Installation Diagram ................21
Section 7 – Electrical Data ............................22
Section 8 – Exploded Views and
Parts Lists ....................................30
Section 9 – Notes ............................................58
Section 10 – Warranty ....................................60