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EXPLANATION OF COMPONENTS
SYSTEM OPERATING LAMP
The system operating lamp indicates that the controller mount-
ed on the machine is turned ON.
Lamp (1) lights up in green when the controller is turned ON
and normally goes out in 5 to 6 minutes after the power for the
machine is turned OFF.
Before operating the battery disconnect switch, check that lamp
(1) is not lit.
NOTICE
If the battery disconnect switch is turned OFF while this
lamp is lit, the data in the controller may be lost.
REMARK
•
Even if the starting switch is in OFF position, the controller may operate. The lamp lights up in this case, but
it is not abnormal.
•
After the starting switch has been turned off, the system operating lamp may stay lit for a long time.
In such case, consult your Komatsu distributor.
•
While DEF system devices are operating, the system operating lamp lights up to return DEF to the tank.
Do not turn the battery disconnect switch to OFF position while the system operating lamp is lit.
BACKUP ALARM
This alarm sounds as soon as the machine moves in reverse to
warn people behind the machine.
When moving the machine in reverse, perform the following
procedure.
•
Set the directional lever to REVERSE position (R).
•
Set the directional selector switch (if equipped) to RE-
VERSE position.
•
Set the directional selector switch of the multifunction
mono-lever (if equipped) to REVERSE position.
HANDLING FRONT WIPER
Preventing the damage to the wiper arm bracket
NOTICE
When tilting wiper arm (1) forward, make sure that wiper
blade (2) moves freely.
When tilting wiper arm (1) forward for cleaning cab glass, etc.,
make sure that wiper blade (2) is not locked in the arm (the bot-
tom of the blade is not caught in the arm). If locked, an abnor-
mal external force may apply to the bracket when you tilt the
wiper arm forward, and the bracket may be damaged.
AUTO-GREASING
NOTICE
The auto-greasing system is used only for all connected lubrication points. The other lubrication points
have to be greased manually.
Changing the lubrication interval times
The auto-greasing system is adjusted for the normal use.
3-128
OPERATION
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