Introduction

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

8

1.9

Location

8

 

1.9.1

Generator

8

 

1.9.2

Transfer Switch

9

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

13

 

2.7.1

7 kW Units

13

 

2.7.2 12 kW and 15 kW Units

13

 

2.7.3

Additional Corrosion Protection

14

2.8

Voltage Regulator Adjustment

14

Section 3 – Operation

14

3.1

Break-in Procedure

14

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

15

3.4

Sequence of Automatic Operation

15

3.5

Manual Transfer Operation

15

 

3.5.1

Transfer to Generator

 

 

 

Power Source

15

 

3.5.2 Transfer Back to Utility

 

 

 

Power Source

16

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

17

 

3.7.4

Overspeed

17

Section 4 – Maintenance

17

4.1

Fuse

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

17

4.2

Checking the Engine Oil Level

17

4.3

Changing the Engine Oil

18

 

4.3.1

Engine Oil Recommendations

18

 

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.

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Generac Power Systems 04758-2, 04759-2, 04760-2 owner manual Introduction