Perkins 904D-E28T Operation And Maintenance Manual page 37

M0108133-04 37
Operation Section
Sensors and Electrical Components
Indicator Lamps
• Shutdown lamp
• Warning lamp
• Low oil pressure lamp
• Wait to start lamp (Glow plug warning lamp)
For information, refer to this manual, "Monitoring
System (Table for the Indicator Lamps)" for the
sequence of operation of the shutdown lamp and the
warning lamp.
The function of the wait to start lamp is automatically
controlled at engine start-up.
The function of the low oil pressure lamp is controlled
by the engine ECM. If low oil pressure is detected,
the lamp will be illuminated. The reason for the
illumination of the low-pressure lamp should be
investigated immediately.
The glow plug warning lamp will flash to show that
the engine is being held at low speed. This function
will be performed at engine starting and the duration
will depend on ambient temperature and engine
temperature.
The lamps will illuminate for 2 seconds to check that
the lamps are functioning when the keyswitch is
turned to the ON position. If any of the lamps stay
illuminated, or a lamp fails to be illuminated the
reason should be investigated immediately.
i08083277
Sensors and Electrical
Components
The illustrations within the following sections are
typical location of the sensors or electrical
components for an industrial engine. Specific
engines may appear different due to differences in
applications.
NRS – NOx Reduction System
ECM – Electronic Control Module