GETTING TO KNOW YOUR POWER PACKAGE
SECTION 2
Page 14 CMD-3967823 / 90-865237030 OCTOBER 2003
CE479
ENGINE MONITORING FEATURES
a b c d e
77725
a-Charge indicator lamp
b-Oil pressure warning lamp
c-Preheat indicator lamp (not active on some late models equipped with a wait to
start glow plug system)
d-Coolant temperature warning lamp
e-Water in fuel warning lamp
The lamps function as follows, unless stated otherwise:
Charge Indicator Lamp - indicates a problem with charging system if lamp illuminates
while engine is operating. Lamp will be on when key switch is in RUN and engine is not
operating. When engine starts, light should go off.
Oil Pressure Warning Lamp - indicates low engine oil pressure if lamp illuminates while
engine is running.
Preheat Indicator Lamp - on some models this lamp indicates when the glow plugs, if
equipped, are preheating the combustion chambers. When the engine is cold the timed
preheat period begins when the key switch is turned to RUN. The lamp stays on until the
preheat period is complete. The engine should be started only after the lamp goes out.
NOTE: Some engines may be equipped with a glow plug system that does not illuminate
the preheat indicator lamp. These systems require a five second wait to start period after
the key switch is turned to the RUN position. After the five second wait to start period the
engine can be started.
Coolant Temperature Warning Lamp - indicates excessive engine coolant temperature
if lamp illuminates while engine is running, or transmission fluid temperature is too high
Refer to the following note.
NOTE: The audio warning alarms are wired in a parallel circuit. If an alarm sounds while the
engine is operating, quickly observe the coolant temperature gauge. If coolant temperature
gauge reading is normal this may be an indication of excessive transmission temperature.
The cause should be determined and corrected.
Water In Fuel Warning Lamp - indicates water is present in fuel filter and that the fuel filter
requires service.
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