Komatsu D85EX-18 Operation & Maintenance Manual page 317

MAINTENANCE
2.
Fully open engine side covers (2) on the right and left of
the machine and lock them.
3.
Turn starting switch (1) to ON position.
4.
On the user menu, set Fan Reverse Mode.
For setting of Fan Reverse Mode, see "REVERSE HY-
DRAULIC FAN (3-64)".
REMARK
Even if Fan Reverse Mode is set while the engine is run-
ning, the fan rotation direction is not reversed.
The screen in the figure is displayed to inform the operator
that the direction of rotation of the fan has not been
changed.
Stop the engine once and follow the steps 2. and 3.
5.
Turn the starting switch (1) to START position and start the
engine.
The hydraulic fan rotates in reverse.
6.
Turn the fuel control dial at High idle (MAX) position, and run the engine at high idle.
Change the time for running the engine at high idle corresponding to seriousness of clogging.
Normal clogging: 1 to 2 minutes
Excessive clogging: 2 to 3 minutes
7.
After cleaning, turn the fuel control dial to Low idle (MIN) position.
Run the engine at low idle for approximately 10 seconds.
8.
Turn starting switch (1) to OFF position and stop the engine.
9.
Close engine side cover (2) on the right and left side of the machine.
MAINTENANCE PROCEDURE
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