Komatsu H70051 Series Operation & Maintenance Manual page 311

OPERATION
IF MACHINE MONITOR SHOWS WARNING DISPLAY
When the action level display (1) or caution lamp (2) is shown
on the display of the machine monitor, press the switch (3) to
display "Current Abnormality" and check the details and reme-
dy.
For the contents of the action level display and caution lamp,
see "BASIC OPERATION OF MACHINE MONITOR WHEN
TROUBLE OCCURS WHILE OPERATING MACHINE (3-15)".
• If "CA2249" or "CA559" is displayed on "Current Abnormal-
ity" screen although the machine has not run out of fuel,
replace both of the fuel main filter and fuel prefilter immedi-
ately.
For the method of replacement, see "METHOD FOR RE-
PLACING FUEL MAIN FILTER CARTRIDGE (4-57)",
"METHOD FOR REPLACING FUEL PREFILTER CAR-
TRIDGE (4-55)".
If "CA2249" or "CA559" is not cleared even after the re-
placement, the machine still can perform normal operation,
but ask your Komatsu distributor for inspection immediate-
ly.
• When failure code "CA4166 (SCR Temperature Sensor
ECU High Temperature Error)" is displayed, raise the cool-
ing fan speed by raising the engine speed to emit the heat inside the engine room.
Telephone number for the point of contact when an error occurs
When an error screen is displayed on the monitor, press the
switch (3) to display "Current Abnormality" screen and tele-
phone number for the point of contact is displayed in the mes-
sage column at the bottom of the screen.
REMARK
If no point of contact telephone number is registered, no tele-
phone number is displayed.
Ask your Komatsu distributor for the telephone number regis-
tration if necessary.
TROUBLES AND ACTIONS
3-245