Name: Generac Power Systems 04389-1, 04456-1, 04390-1
Brand: Generac Power Systems
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POWER SYSTEMS, INC.

GENERAC

POWER SYSTEMS, INC.

Installation and

Owner’s Manual

Air-cooled, Prepackaged

Automatic Standby Generators

Models:

04389-1 (6 kW NG, 7 kW LP)

04456-1 (12 kW NG, 12 kW LP)

04390-1 (13 kW NG, 15 kW LP)

DEADLY EXHAUST FUMES. OUTDOOR INSTALLATION ONLY!!

DANGER

Not intended for use as Primary Power in place of utility or in

life-support applications.

Introduction2
- Read this Manual Thoroughly2
- Contents2
- Operation and Maintenance2
- How to Obtain Service2
- Table of Contents3
Safety Rules4
- Standards Index5
Section 1 - General Information6
Unpacking/Inspection6
Protection Systems6
System Set LED6
Your Generator7
Specifications8
- Generator8
- Engine8
Fuel Requirements and Recommendations9
Fuel Consumption9
Reconfiguring the Fuel System9
- Kw, 410Cc Engine9
- Kw and 15 Kw, 990Cc Engine9
Location10
- Generator10
- Transfer Switch10
Battery Installation10
The Battery11
Section 2 - Post Installation Start-Up and Adjustments12
Before Initial Startup12
Check Transfer Switch Operation12
Electrical Checks12
Generator Tests under Load13
Checking Automatic Operation13
Adjusting the Regulator (Natural Gas Only)13
Engine Governor Adjustment14
- Kw Units14
- Kw and 15 Kw Units15
- Additional Corrosion Protection15
Voltage Regulator Adjustment15
Section 3 - Operation15
Break-In Procedure15
Off" Position16
Manual" Position16
Auto" Position16
Using the Auto/Off/Manual Switch16
Automatic Transfer Operation16
Sequence of Automatic Operation16
Manual Transfer Operation17
- Transfer to Generator Power Source17
- Transfer Back to Utility Power Source17
Setting the Exercise Timer17
Protection Systems18
- Low Oil Pressure Switch18
- High Temperature Switch18
- Overcrank18
- Overspeed18
Section 4 - Maintenance18
Fuse18
Checking the Engine Oil Level19
Changing the Engine Oil19
- Engine Oil Recommendations19
- Oil Change Procedure19
Changing the Oil Filter20
Changing the Engine Air Cleaner20
- Kw, 12 Kw and 15 Kw Generators20
Spark Plug(S)20
Battery Maintenance21
Adjusting GH-410/GT-990 Valve Clearance21
Cooling System22
Attention after Submersion22
Corrosion Protection22
Out of Service Procedure23
- Removal from Service23
- Return to Service23
Service Schedule24
Section 5 - Troubleshooting25
Troubleshooting Guide25
Section 6 - Electrical Data26
Section 7 - Exploded Views and Parts Lists34
Section 8 - Mounting Dimensions55
Section 9 - Notes56
Generac Power Systems, Inc58
Section 10 - Warranty58
Emission Control System Warranty59

Generac Power Systems 04389-1, 04456-1, 04390-1 User Manual

Table of Contents

Questions and Answers:

Generac Power Systems 04389-1, 04456-1, 04390-1 Specifications

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Brand	Generac Power Systems
Model	04389-1, 04456-1, 04390-1
Category	Inverter
Language	English