OM-2245 / Operation and Maintenance Manual
ITW GSE 4400 / 400 Hz. Generator Set
March 15, 2015
Chapter 1-1
Page 9
5) Special Features
The generator set has special features that are described more fully under the assemblies in which they
appear.
a) Protective Monitoring
The protective monitoring system receives signals from the fault sensing components in the generator
output circuit and functions to cause the load to be disconnected from the generator if an abnormal
condition of voltage, frequency, or load develops. The nature of that abnormal condition is then
presented on the graphical display.
b) Voltage Regulator
A microprocessor-type, adjustable voltage regulator provides automatic voltage regulation at the
aircraft. The regulated output is also adjustable for a variety of output cable sizes and lengths.
c) Engine Electronic Control Module
The engine is equipped with an electronic control module that monitors, records, and controls engine
performance.
d) Battery System Disconnect Switch
The generator set is equipped with a battery disconnect switch outside the unit on the RIGHT side.
The disconnect switch should be placed in the OFF position during long periods of shutdown.
6) Canopy
A composite enclosure, identified as a canopy, provides protection for the engine, generator and electrical
controls. The canopy is also designed to reduce the operational noise level in the immediate area of the
machine.
7) Engine and Generator
The engine and generator comprise the principal components of the generator set. They are mounted on
a galvanized, welded steel frame chassis. The following figures show the locations of all major
components and sub-assemblies.
a) Diesel Engine
The diesel engine is a fuel injection, 4-cylinder, electronically controlled engine rated at 171
horsepower.
b) Engine Manufacturer’s Components
As received from the engine manufacturer, the engine includes some of the following components,
which are more fully described in the engine manufacturer’s manual.
