Komatsu PC490-11, Installation And Instruction Manual

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1.
When the auto-deceleration switch is pressed and the au-
to-deceleration function is turned ON, the mode is dis-
played in the center of the monitor display, and after 2 sec-
onds, the screen returns to the standard screen.
2.
On the standard screen, auto-deceleration pilot lamp lights
up.
(When the auto-deceleration is OFF, the indication lamp
goes out.)
TRAVEL SPEED SELECTOR SWITCH
k k
WARNING
• When loading to or unloading from a trailer, always drive the machine at low speed (set the travel
speed selector switch to Lo) and never operate the travel speed selector switch during travel.
• If the travel speed is switched between Hi and Lo when the machine is traveling, the machine may
deviate to one side, even when traveling in a straight line. Stop the machine before switching the
travel speed.
Travel speed selector switch is used to select the travel speed
from 3 stages.
Lo lights up: Low-speed travel
Mi lights up: Mid-range speed travel
Hi lights up: High-speed travel
When the engine is started, the speed is automatically set to
Lo.
Each time that the switch is pressed, the display changes Lo →
Mi → Hi → Lo in turn.
Even if the travel speed is set to high-speed (Hi) or a mid-range
speed (Mi), when traveling on soft ground or uphill, and travel
power is needed, the system automatically shifts down to low
speed travel (Lo). There is no need to operate the switch. In
this case, the travel speed on the monitor display stays lit at Hi
(high-speed) or Mi (mid-range speed).
EXPLANATION OF COMPONENTS OPERATION
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