Generac 04673-2, 04675-3, 04674-2 owner manual Introduction

Table of Contents

Generac 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	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			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		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	17

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