Komatsu D65EX-12 Operation & Maintenance Manual page 111

OPERATION
MANUAL PREHEATING
1. Turn glow switch (3) to position I or II.
Lamp (4) lights up during the preheating operation.
When the preheating is completed, release the switch.
The key will then return automatically to the following
position.
From position I, it will return to AUTO
From position II, it will return to OFF
The preheating times are as shown below.
Ambient temperature
0ºC to -5ºC
(32°F to 23°F)
-5ºC to -10ºC
(23°F to 14°F)
-10ºC to -20ºC
(14°F to -4°F)
-20ºC to -30ºC
(-4°F to -22°F)
If the preheating time is too long or too short, the engine will not start easily. Observe the correct preheating time.
2. When the preheating is completed, turn the key in start-
ing switch (2) to the START position to start the engine.
3. When the engine starts, release the key in starting switch
(2). The key will return automatically to the ON position.
4. Continue idling for 10 seconds after the engine starts. During this time, do not operate the control levers or
fuel control lever.
3-64
Preheat time
-
15 seconds
30 seconds
45 seconds
OPERATION