Operations And Checks After Starting Engine - Komatsu D61EXi-24 Operation & Maintenance Manual

MACHINE OPERATIONS AND CONTROLS
4.
Check that Windows® operating system starts and the
main screen is displayed on the control box.
5.
Check the color of "elevation control key" (1) or "slope con-
trol key" (2).
• If it is red, there is abnormality.
Check the displayed message and take necessary ac-
tions. For details see "ACTIONS WHEN MESSAGE IS
DISPLAYED ON CONTROL BOX (3-63)".
• If it is green, there is no abnormality.
REMARK
• After the power supply ON switch is pressed, it takes approximately 2 minutes until the main window is dis-
played on the control box.
• If "elevation control key" (1) is red and "Waiting to Initialize..." is continuously displayed, the antenna is not
receiving enough radio waves from the GNSS satellite. Check that there are no obstacles around which
shuts off the radio waves from the GNSS satellite.
• The number of GNSS satellites which can receive the radio waves always varies. Depending on the place
or time zone, you have to wait until the condition to receive the radio waves becomes better.
On the control box screen, you can check the number of satellites which is receiving the radio waves from
the GNSS satellite and expected accuracy of positioning.
For the checking method, see "METHOD FOR DISPLAYING GNSS INFORMATION (4-75)".
• If the x mark is displayed on "radio status" (3) and "elevation control key" (1) is red and "Waiting for radio
link..." is displayed, the radio waves from the base station are weak or radio configuration is wrong. Config-
ure the radio. For details, see "METHOD FOR CONFIGURING RADIOS (3-20)".
• If the starting switch is kept in OFF position (A), "slope control key" (2) is red and "Komatsu controller not
connected!" is displayed. Turn the starting switch to ON position (B), check that "slope control key" (2)
changes to green color, and proceed to the next step.
• When "slope control key" (2) is orange and "Heading Initializing" is displayed, there is not abnormality. If the
machine is moved forward and reverse after the engine starts, "slope control key" (2) changes to green. Go
to the next step.

OPERATIONS AND CHECKS AFTER STARTING ENGINE

Before starting the automatic control of the blade, perform the same operation and check after the engine has
started as of the standard machine.
For the method of operation and check, see the Operation and Maintenance Manual for standard machine.
RESET CYLINDER STROKE END
Before resetting the stroke end of each cylinder, check thoroughly if there is any person or obstacle in
the area around the machine.
For this machine, the position of blade is obtained by the information from the stroke sensor installed on the
cylinder.
Reset the stroke end of each cylinder not only immediately after starting the engine but also approximately twice
a day in order to get accurate automatic control of blade.
• When the stroke end resetting operation has not been performed at all after the starting switch of the ma-
chine is turned to ON position
3-16
k k
WARNING
OPERATION