DX380LC-7
Operation
3-12
Travel
Automatic Travel Speed Control
Two travel speed ranges can be selected by using the travel
speed selector switch on the control panel (Figure 9).
"O" (LOW) - In this position low travel speed and a higher torque
are selected.
"I" (HIGH) - In this position high travel speed and a lower torque
are selected.
"II" (AUTOMATIC) - Setting the control at the "II" position
enables the machine to change to a different speed range
automatically. This change happens automatically depending on
the hydraulic oil pressure in the travel circuit. When hydraulic oil
pressure rises, the travel speed is automatically set to low. An
example is if the machine is traveling on a flat, solid surface, the
higher speed range would be used. When a slope is
encountered, the speed drops and the travel circuit hydraulic
pressure rises, causing the control circuit to shift to the higher
torque, lower speed range.
WARNING
AVOID DEATH OR SERIOUS INJURY
1.
When moving travel controls forward, tracked
excavator will move in the direction of the idlers.
Wheeled excavator will move in the direction of
steering axle.
2.
Before moving, make sure there are no persons or
property in the way or on the machine. No riders. Sound
the horn to alert workers and bystanders that you are
about to move the machine.
3.
Always be sure the path is clear during travel.
4.
Use extreme caution when reversing travel. Be sure
there is a clear path behind the machine.
5.
Operate the travel control levers smoothly to avoid
sudden starts or stops.
6.
Before leaving the operator's seat, make sure to lock
out all control systems and stop engine to avoid
accidental activation of controls.
WARNING
AVOID DEATH OR SERIOUS INJURY
Do not change the travel mode while traveling. Always use
speed mode "O" when traveling down a slope. Do not
change to speed modes indicated "I" or "II" while going
down a slope. Only change travel mode after coming to a
complete stop.
FG016016
O
I
II
Figure 9