Komatsu PC45MR-30403, Operation And Maintenance Manual

Page: 220 / 475

3.
Turn the key in starting switch (3) to ON position (B).
REMARK
If the ambient temperature is low, the preheating pilot lamp
lights up and automatic preheating is performed.
Keep starting switch (3) key at ON position (B) until the
preheating pilot lamp goes out.
The time that the preheating pilot lamp stays lit depends
on the ambient temperature as shown in the table.
Ambient temperature Lighting time
-15 °C or higher {5 °F or higher} 0 to 15 seconds
-15 °C or lower {5 °F or lower} 15 seconds
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, turn the key in starting switch (3) to
START position (C).
The engine starts.
REMARK
When the ambient temperature is low, the engine may not
start even if the key in starting switch (3) is kept at START
position for 20 seconds. If this happens, wait for at least 2
minutes, then start again from the beginning.
5.
When the engine starts, release the key in starting switch
(3).
The key in starting switch (3) automatically returns to ON
position (B).
REMARK
At starting of the engine, battery voltage may drop abruptly
depending on the ambient temperature or battery condi-
tion, and the machine monitor may restart, but it is not a
trouble.
6.
After the engine starts, wait for the engine oil pressure caution lamp to go out. Do not touch the control
levers or control pedal while the engine oil pressure caution lamp is lit.
OPERATION MACHINE OPERATIONS AND CONTROLS
3-159