Prepackaged; Home Standby - Guardian 4721 Repair Manual

GENERAL INFORMATION
INTRODUCTION
This Diagnostic Repair Manual has been prepared
especially for the purpose of familiarizing service per-
sonnel with the testing, troubleshooting and repair of
prepackaged home standby generator systems.
Every effort has been expended to ensure that infor-
mation and instructions in the manual are both accu-
rate and current. However, the manufacturer reserves
the right to change, after or otherwise improve the
product at any time without prior notification.
The manual has been divided into several PARTS.
Each PART has been divided into SECTIONS. Each
SECTION consists of two or more SUBSECTIONS.
It is not the manufacturers intent to provide detailed
disassembly and reassembly instructions in this man-
ual. It is the manufacturers intent to (a) provide the
service technician with an understanding of how the
various assemblies and systems work, (b) assist the
technician in finding the cause of malfunctions, and
(c) effect the expeditious repair of the equipment.
PART 1
GENERATOR IDENTIFICATION
UNITS WITH LIQUID COOLED ENGINE
A typical prepackaged generator with liquid cooled
engine is shown on Page 4 at front of this manual.
A DATA PLATE, affixed to the unit, contains impor-
tant information pertaining to the unit, including its
Model Number, Serial Number, kW rating, rated rpm,
rated voltage, etc. The information from this data
plate may be required when requesting information,
ordering parts, etc.
Figure 1. A Typical Data Plate
SECTION 1.1
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