Komatsu D475A-5E0 Operation & Maintenance Manual page 173

OPERATION OPERATION
8. Keep in this condition until engine pre-heating pilot lamp (3)
goes out.
(Pre-heating is completed after approx. 12 seconds, and the
lamp goes out.)
9. When preheating pilot lamp (3) goes off, turn the key of ignition
switch (2) to START position (C) to crank the engine.
The time that preheating pilot lamp (3) stays on changes
according to the ambient temperature as shown in the table
below.
Ambient temperature
0 ° C to -10 ° C (32 ° F to 14 ° F)
-10 ° C to -20 ° C (14 ° F to -4 ° F)
-20 ° C to -30 ° C (-4 ° F to -22 ° F) 30 to 45 seconds
-30 ° C to (-22 ° F to)
10. When the engine starts, release the key in starting switch (2).
The key will return automatically to ON position (B).
REMARK
Immediately after starting the engine, run the engine at idling, and do not operate the accelerator pedal or work
equipment during this time.
Guideline for idling time
Cold weather: At least 15 seconds
When first starting engine after changing oil or replacing engine oil filter: 20 seconds
3 - 120
Pre-heat time
0 to 15 seconds
15 to 30 seconds
45 seconds
OPERATION OPERATION