Komatsu PC500LC-10R Shop Manual page 559

30 TESTING AND ADJUSTING
REMARK
• This operation can be performed while the engine is running.
• If background (a) of the selected cylinder number becomes white after you press F6, the cylinder is cut-
out.
• If the machine monitor cuts out a cylinder but the engine controller cannot cutout that cylinder, the back-
ground (a) of the cylinder number becomes yellow.
• One or more cylinders can be cutout.
• Auto-deceleration function can be selected in the cylinder cutout mode operation. When turning auto-
deceleration ON, auto-deceleration monitor (b) is displayed.
4.
When changing a cylinder to be cutout or when cylinder cutout operation is finished, select a cutout cylinder
to be reset with the function switches.
NOTICE
The cutout cylinder mode operation is not automatically released after the screen returns to the op-
erator mode. Accordingly, be sure to perform the releasing operation after the cylinder cutout mode
operation is finished.
REMARK
• This operation can be performed while the engine is running.
• When F6 is pressed, if background (a) of the selected cylinder No. becomes blue, the cylinder is reset.
• If the machine monitor releases a cutout cylinder but the engine controller cannot release the cutout cyl-
inder, the background (a) of the cylinder number becomes red.
5.
Each time F4 is pressed during the cylinder cutout opera-
tion, the displayed data is newly held (c) (the real-time da-
ta is kept displayed on the left side).
• Hold function can be unlocked by pressing F4 while
hold is turned on.
• The holding function is available for a cylinder regard-
less of whether it is cutout or not.
If a normally operating cylinder is cutout, the following phe-
nomena occur.
• Engine speed decreases.
• "Inject Fueling Command" increases.
However, if the engine is running at around high idle, the engine speed may not decrease for the reason of
engine control. In this case, lower the engine speed with the fuel control dial and judge by increase of the
injection rate command.
METHOD FOR OPERATING TESTING MENU (RESET NUMBER OF ABRUPT EN-
GINE STOP BY AIS)
Use the testing menu for testing the machine or resetting the settings of the machine monitor.
"Reset Number of Abrupt Engine Stop by AIS" function resets the counter of high engine speed which activates
the auto idle stop function. Use this function when turbocharger is replaced.
PC500LC-10R
SET AND OPERATE MACHINE MONITOR
30-153