Komatsu D65EXi-18, Руководство по эксплуатации и техническому обслуживанию

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(T) Design surface
• If some place higher than the design surface is left at 1 time dozing, travel on that place several times so
that such place can be built as designed.
• Depending on the type of soil, if the travel speed is high, the leveled surface may be uneven. Decrease the
travel speed.
REMARK
When checking the height of design surface by using blade, place the joystick (steering, directional and gear
shift lever) in FORWARD position with brake pedal and decelerator pedal depressed, and perform LOWER trig-
ger operation.
For LOWER trigger operation method, see “METHOD FOR ACTIVATING AUTOMATIC BLADE CONTROL
(3-35)”.
Since the blade will automatically go down to the height of design surface, you can grasp the relationship be-
tween the machine and design surface. However, if the height of design surface is lower than the ground where
the track contacts, the blade does not go down below the ground.
Even for the design surface which is not horizon, the blade automatic control can be used.
When turning the machine on the slope at leveling work, turn with large turning radius or change the direction of
machine and push the soil slantwise in straight line in order to make the finishing surface smooth.
In the work on a sharp slope, sideway or downhill operation is more efficient than uphill operation.
(T) Design surface
REMARK
When waves may occur during leveling work and the leveled surface may be rough, the possible causes of this
phenomenon are as follows.
Find out the cause and take remedies.
Main causes Remedy
Hydraulic oil temperature is
low. Perform warm-up operation until pointer of hydraulic oil temperature gauge enters
green range.
Operation is not suitable for
blade automatic control. The following works are not suitable for the blade automatic control and can lower the
response of blade. Turn off the blade automatic control, and operate blade with blade
control lever.
• Cutting or ditching into hard or frozen ground
•
Work on a place where soil condition is uneven
Leveled surface may be uneven at place where the ground hardness
changes.
OPERATION MACHINE OPERATIONS AND CONTROLS
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