Komatsu D31EX-21, Operation & Maintenance Manual, Page: 129 / 256

OPERATION
OPERATION
3-77
STARTING ENGINE 3
NORMAL STARTING 3
WARNING
q
Start the engine only after sitting down in the operator's seat.
q
Do not attempt to start the engine by short-circuiting the engine starting circuit. Such an act may
cause serious bodily injury or fire.
q
Check that there are no persons or obstacles in the surrounding area, then sound the horn and start
the engine.
q
Exhaust gas is toxic. When starting the engine in confined spaces, be particularly careful to ensure
good ventilation.
NOTICE
q
Do not continue to crank the starting motor continu-
ously for more than 60 seconds under any circum-
stances. If the engine does not start, wait for at least 2
minutes, then repeat the procedure from Step 3.
q
Do not start the engine with the fuel control lever near
the FULL position. It may lead to damage of the engine
parts.
1. Before starting the engine, check that fuel control lever (1)
is at the low idling position.
2. Pull fuel control lever (1) to a position midway between the
low idling and full speed positions.
3. Insert the key into starting switch (2) and turn the key to the
START position. The engine will start.
Low idling