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OPERATION
REMARK
If the fan reverse operation is performed while aftertreatment
devices regeneration pilot lamp (A) is lit, the engine speed may
not increase even if the fuel control dial is set to High idle
(MAX) position, but this is not a failure.
The hydraulic fan reverse mode (fan reverse rotation) can be
used to remove insects and dirt sticking to the radiator core by
blowing air with the fan outward of the machine.
Before starting the hydraulic fan reverse, check that there is no
combustible substance in the periphery which may be sucked
in the fan.
In a cold circumstance, perform the cleaning by fan reverse rotation within less than 5 minutes. If the fan re-
verse rotation is performed for a long time, DEF hose may freeze.
1.
Place the parking brake lever and work equipment lock lever in LOCK position.
2.
Perform the engine warm-up operation.
If the warm-up operation is not performed, the air flow may be insufficient.
3.
After finishing the warm-up operation, set the fuel control dial to Low idle (MIN) position.
4.
Stop the engine.
5.
Open the engine side covers on the right and left sides of the machine.
6.
Turn the starting switch to ON position.
7.
Select "Fan Reverse Mode" (1) on "Machine Setting" menu
(b) screen.
8.
Press switch F6.
If the parking brake lever or work equipment lock lever is in
FREE position or the engine is running, the screen shown
in the figure is displayed and the fan rotation is not re-
versed.
9.
Press switch F6 when the fan reversing confirmation
screen is displayed.
When canceling the fan reversing operation, press switch
F5.
EXPLANATION OF COMPONENTS
3-65
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