Generac Power Systems 5251 Manuel D’Utilisation

Table of Contents

Air-cooled 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

NEC Requirement for Arc Fault Circuit
Interruption Breaker for Bedrooms .............. 4

1.4 The

Generator

............................................... 5

1.5 Specifications

................................................ 6

1.6 System

Set

LED

............................................ 7

1.7 Fuel Requirements and Recommendations ... 7

1.8 Fuel

Consumption

......................................... 7

1.9 Reconfiguring the Fuel System ...................... 8

1.10 Location ........................................................ 9

1.11 Battery Requirements

.................................. 10

1.12 Battery Installation ...................................... 10

1.13 The Battery ................................................. 11

Section 2 – Post Installation Start-up

and Adjustments .......................12

2.1 Before

Initial

Startup................................... 12

2.2 Check Transfer Switch Operation ............... 12

2.3 Electrical

Checks

........................................ 12

2.4 Generator Tests Under Load ....................... 13

2.5 Checking

Automatic

Operation

.................... 13

2.6

Adjusting the Fuel Regulator -
7kW (Natural Gas Only) ............................... 13

2.7 Engine

Governor

Adjustment

...................... 14

2.8 Voltage Regulator Adjustment ...................... 15

Section 3 – Operation ....................................15

3.1 Using the AUTO/OFF/MANUAL Switch ........ 15

3.2 Automatic Transfer Operation ..................... 16

3.3 Sequence of Automatic Operation ............... 16

3.4 Manual

Transfer

Operation

......................... 16

3.5 Setting the Exercise Timer .......................... 17

3.6 Protection

Systems

...................................... 18

Section 4 – Maintenance ...............................19

4.1 Fuses

........................................................... 19

4.2 Checking the Engine Oil Level ..................... 19

4.3 Changing the Engine Oil .............................. 20

4.4 Changing the Engine Air Cleaner ................. 21

4.5 Spark

Plug(s)

.............................................. 21

4.6 Battery

Maintenance

.................................... 22

4.7

Adjusting GH-410/GT-530/990
Valve Clearance ............................................ 22

4.8 Cooling

System

........................................... 23

4.9 Attention

After

Submersion

......................... 23

4.10 Corrosion Protection ................................... 24

4.11 Out of Service Procedure ............................. 24

4.12 Service Schedule ......................................... 25

Section 5 – Troubleshooting ........................ 26

5.1 Troubleshooting

Guide

................................ 26

Section 6 – Notes ............................................27
Section 7 – Mounting Dimensions ............. 30
Section 8 – Electrical Data ........................... 31
Section 9 – Exploded Views and

Parts Lists ................................... 42

Section 10 – Warranty ................................... 68