Perkins 1204EA-E44TA Operation And Maintenance Manual page 40

40
Operation Section
Sensors and Electrical Components
An overspeed is detected by the speed/timing
sensors.
The default setting for an overspeed is 3000 rpm.
The ECM will cut the power to the electronic unit
injectors, until the rpm drops below 200 rpm of the
overspeed setting. A diagnostic fault code will be
logged into the ECM memory and a warning lamp will
indicate a diagnostic fault code.
An overspeed can be set from 2600 rpm to 3000 rpm.
This setting depends on the application.
Sensors and Electrical
Components
The illustration within the section shows the typical
locations of the sensors and other electrical
components on the Industrial engine. Specific
engines may appear different due to the application.
Also illustration of the aftertreatment system may
appear different due to the application.
Engine Views
Illustration 38
Typical example
(1) Fuel pressure sensor (Fuel Rail Pressure
Sensor)
(2) Intake Manifold Air Temperature Sensor
i08748409
(3) Boost Pressure Sensor
(4) Electronic pressure relief valve
M0135751
g06763184