Komatsu D475A-5E0 Operation & Maintenance Manual page 168

OPERATION
STARTING IN COLD WEATHER
Always sit in the operator's seat when starting the engine.
Do not short circuit the starting motor circuit to start the engine. There is danger that this may cause serious personal injury
or fire.
Check that there is no person or obstacle in the surrounding area, then sound the horn before starting the engine.
Never use any starting aid fluid to start the engine. There is danger that it may cause an explosion.
Exhaust gas is poisonous. Always ensure that there is good ventilation before starting the engine in an enclosed place.
NOTICE
Do not crank the starting motor continuously for more than 20 seconds.
If the engine does not start, wait for at least 2 minutes, then repeat the
procedure from Step 2.
Before starting the engine, check that the fuel control dial is in Low idle
(MIN) position.
On this machine, to protect the turbocharger, a turbo protect function is
provided. In cold weather, even if fuel control dial (1) is moved
immediately after starting the engine, the engine speed may not change
for several seconds.
If the fuel control dial is at High idle (MAX) position, the engine will
accelerate suddenly and cause damage to the engine parts, so set it to
an intermediate or Low idle (MIN) position.
1. Set fuel control dial (1) to Low idle (MIN) position.
If the dial is at High idle (MAX) position, always change it to
Low idle (MIN) position.
2. Insert the key into starting switch (2) and turn the key to ON
position (B).
WARNING
OPERATION
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