Table of Contents

Guardian Air-cooled 7 kW, 12 kW and 15 kW Generators

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

Standards Index

3

Section 1 – General Information

4

1.1

Unpacking/Inspection

4

1.2

Protection Systems

4

1.3

System Set LED

4

1.4

The Generator

5

1.5

Specifications

6

 

1.5.1

Generator

6

 

1.5.2

Engine

6

1.6

Fuel Requirements and Recommendations....

7

1.7

Fuel Consumption

7

1.8

Reconfiguring the Fuel System

7

 

1.8.1

7 kW, 410CC

7

 

1.8.2 12 kW and 15 kW, 990cc Engines

7

1.9

Location

8

 

1.9.1

Generator

8

 

1.9.2

Transfer Switch

8

1.10

Battery Installation

9

1.11

The Battery

9

Section 2 – Post Installation Start-up

 

 

 

and Adjustments

10

2.1

Before Initial Start-up

10

2.2

Check Transfer Switch Operation

10

2.3

Electrical Checks

10

2.4

Generator Tests Under Load

11

2.5

Checking Automatic Operation

11

2.6Adjusting the Regulator (Natural Gas Only) ..12

2.7

Engine Governor Adjustment

12

 

2.7.1

7 kW Units

12

 

2.7.2 12 kW and 15 kW Units

13

 

2.7.3

Additional Corrosion Protection

13

2.8

Voltage Regulator Adjustment

13

Section 3 – Operation

13

3.1

Break-in Procedure

13

3.2

Using the Auto/Off/Manual Switch

14

 

3.2.1

“Auto” Position

14

 

3.2.2

“Off” Position

14

 

3.2.3

“Manual” Position

14

3.3

Automatic Transfer Operation

14

3.4

Sequence of Automatic Operation

14

3.5

Manual Transfer Operation

15

 

3.5.1

Transfer to Generator

 

 

 

Power Source

15

 

3.5.2 Transfer Back to Utility

 

 

 

Power Source

15

3.6

Setting the Exercise Timer

16

3.7

Protection Systems

16

 

3.7.1 Low Oil Pressure Switch

16

 

3.7.2

High Temperature Switch

16

 

3.7.3

Overcrank

16

 

3.7.4

Overspeed

16

Section 4 – Maintenance

17

4.1

Fuse

............................................................

17

4.2

Checking the Engine Oil Level

17

4.3

Changing the Engine Oil

17

 

4.3.1

Engine Oil Recommendations

17

 

4.3.2

Oil Change Procedure

18

4.4

Changing the Oil Filter

18

4.5

Changing the Engine Air Cleaner

18

 

4.5.1 7 kW, 12 kW and 15 kW

 

 

 

Generators

18

4.6

Spark Plug(s)

19

4.7

Battery Maintenance

19

4.8

Adjusting Valve Clearance

20

4.9

Cooling System

20

4.10

Attention After Submersion

21

4.11

Corrosion Protection

21

4.12

Out of Service Procedure

21

 

4.12.1 Removal From Service

21

 

4.12.2 Return to Service

21

4.13

Service Schedule

22

Section 5 – Troubleshooting

23

5.1

Troubleshooting Guide

23

Section 6 – Electrical Data

24

Section 7 – Exploded Views and

 

 

 

Parts Lists

32

Section 8 – Mounting Dimensions

50

Section 9 – Notes

51

Section 10 – Warranty

52

 

 

Generac® Power Systems, Inc.

1

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Generac Power Systems 04758-1, 04759-1, 04760-1 Introduction Inside Front Cover, General Information, Operation

04758-1, 04759-1, 04760-1 specifications

Generac Power Systems is a leading manufacturer of power generation equipment, particularly known for its innovative solutions in backup and portable power. Among its impressive product lineup, the Generac models 04758-1, 04759-1, and 04760-1 stand out for their reliability and advanced features, making them ideal choices for residential and commercial applications.

The Generac 04758-1 is a robust standby generator that delivers a powerful output of 22kW. It is designed to automatically kick in during power outages, ensuring that homes remain powered without the need for manual intervention. One of its main features is the innovative Mobile Link app, which allows users to monitor their generator's status remotely through their smartphones. This model also incorporates Generac's G-Force engine, which is designed with durability in mind, providing longer run times and enhanced performance.

The 04759-1 model builds on its predecessor's strengths by enhancing its power capabilities. With a 24kW output, it efficiently supplies power to larger homes or small businesses that require reliability during outages. Its True Power Technology ensures clean power output, making it suitable for sensitive electronics. The 04759-1 also boasts advanced diagnostic features, allowing for self-testing and maintenance alerts, which contribute to its user-friendly design.

Moving up in the lineup, the Generac 04760-1 generator further amplifies power output, reaching an impressive 26kW. This model is tailored for those who demand the utmost in power reliability, featuring an aluminized steel enclosure that enhances durability and rust resistance. The 04760-1 is equipped with Wi-Fi connectivity, enabling real-time updates and notifications directly to users’ mobile devices. Its superior sound attenuated design operates quietly, ensuring minimal disruption during operation.

All three models are equipped with the Quiet-Test technology, which allows for a low-decibel exercise cycle that reduces noise levels without sacrificing performance. Additionally, Generac back them with a comprehensive warranty and customer support, assuring consumers of their long-term reliability and effectiveness. With advanced features, superior performance, and innovative technology, the Generac 04758-1, 04759-1, and 04760-1 models offer dependable solutions for power generation needs, catering to a diverse range of applications while ensuring peace of mind during power interruptions.