Introduction Inside Front Cover | Generac Power Systems 04390-1

Generac Power Systems 04390-1 Introduction Inside Front Cover, General Information, Operation

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	Your 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 Engine			7
	1.8.2 12 kW and 15 kW, 990cc Engine			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 Startup			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		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		14
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	16
	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

4.8Adjusting GH-410/GT-990 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	53
Section 9		– Notes	54
Section 10 – Warranty			56
		Generac® Power Systems, Inc.	1

04389-1, 04456-1, 04390-1 specifications

Generac Power Systems is synonymous with reliable and innovative power solutions for both residential and commercial applications. Among its diverse product lineup, the Generac 04390-1, 04456-1, and 04389-1 stand out due to their robust features, advanced technologies, and user-focused characteristics.

The Generac 04390-1 is a portable generator designed for versatility and efficiency. It is equipped with a powerful OHV engine that enables it to deliver up to 3500 running watts and 4375 starting watts, making it suitable for various applications, such as home backup during outages or powering tools on job sites. The generator features a built-in PowerRUSH technology, which provides a 40% more starting capacity than traditional models, allowing it to handle more demanding appliances and tools simultaneously. Additionally, its lightweight and compact design enhance portability, complemented by a sturdy handle and flat-free wheels.

Moving on to the Generac 04456-1, this model offers a greater output with 7500 running watts and 9400 starting watts. Ideal for larger homes or work environments, it is powered by a heavy-duty, 420cc engine and designed for optimal performance. The unit incorporates an electric start feature for easy operation and includes a low-oil shutdown system that protects the engine from damage, providing peace of mind to users. The reinforced roll-cage design ensures durability, while its quiet operation keeps noise levels to a minimum, making it suitable for more noise-sensitive environments.

Lastly, the Generac 04389-1 generator is particularly characterized by its dual-fuel capability, allowing users to run it on either gasoline or propane. This flexibility ensures seamless operation in various situations, with 5500 running watts on gasoline and 4950 running watts on propane. The model’s advanced engineering includes an easy-to-read fuel gauge, ensuring that users can monitor fuel levels without hassle. This generator is also equipped with a heavy-duty, full-wrap steel frame for resistance against impacts and wear, making it perfect for outdoor use.

Collectively, the Generac 04390-1, 04456-1, and 04389-1 models embody a commitment to quality and innovation. With their powerful engines, enhanced technologies, and user-friendly features, these generators provide peace of mind through reliable power solutions, catering to a multitude of needs for both residential and commercial users alike. Whether for emergency backup or regular use, Generac’s offerings ensure that power is always on hand when it’s needed the most.

Introduction

Inside Front Cover

Section 1 – General Information

Section 2 – Post Installation Start-up

and Adjustments

Section 3 – Operation

Section 4 – Maintenance

Section 5 – Troubleshooting

04389-1, 04456-1, 04390-1 specifications