Komatsu D375A-8, Operation & Maintenance Manual

Page: 218 / 466

3.
Turn the key in starting switch (4) to ON position (B).
If the ambient temperature is low, the preheating pilot lamp
lights up and automatic preheating is performed. Keep the
key in starting switch (4) at ON position until the preheat-
ing pilot lamp goes out.
4.
If the preheating pilot lamp does not light up, or it lights up
and then goes out to inform that the engine preheating has
been completed, check the gear speed display (5).
• When “P” is lit on the gear speed display (5) and “o” is
flashing
Pre-lubrication is necessary.
Perform the pre-lubrication according to the following
procedure.
• When only “P” is lit on the gear speed display (5) and
“o” is not displayed
Pre-lubrication is not necessary.
Continue the engine startup operation according to the procedure from the step 7.
5.
Turn the key in starting switch (4) to START position (C)
and return it to ON position (B) again.
When releasing your hand from the key in starting switch
(4), it automatically returns to ON position (B).
REMARK
The displaying method of “o” on the gear speed display (5)
changes from "flashing" to "being lit", and pre-lubrication
starts.
6.
Pre-lubrication will be completed in 5 to 60 seconds.
At this time, “o” on the gear speed display (5) goes out.
(Pre-lubrication operating time varies depending on the
ambient temperature and engine oil temperature.)
MACHINE OPERATIONS AND CONTROLS OPERATION
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