Table of Contents
Advertisement
OPERATION
Problem
Abnormal noise is generated.
(combustion or mechanical)
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 switch F5 to dis-
play the current abnormality and check the details and remedy.
For the contents of the action level display and caution lamp,
see "WARNING DISPLAY (3-17)".
•
When "DXA8KA", "DXA8KB", "DXA9KA", or "DXA9KB" is
on the current abnormality screen, you can make it possi-
ble to perform operations temporarily by turning the pump
secondary drive switch to upper (emergency) position. For
details of the switch, see "PUMP SECONDARY DRIVE
SWITCH (3-91)".
After that, immediately ask your Komatsu distributor for in-
spection and repair.
•
When the machine has not run out of fuel, if "CA2249" or
"CA559" appears on the current abnormality screen, re-
place both fuel main filter and fuel prefilter immediately.
For details of replacement, see "METHOD FOR REPLACING FUEL PREFILTER CARTRIDGE (4-49)" and
"METHOD FOR REPLACING FUEL MAIN FILTER CARTRIDGE (4-61)".
If "CA2249" or "CA559" does not disappear even after the replacement, ask your Komatsu distributor for
inspection and repair immediately, even though the machine can perform normal operation.
Telephone number for the point of contact if an error occurs
When an error screen is displayed on the monitor, press the
switch F5 to display the current abnormality screen and tele-
phone number (3) for the point of contact is displayed in the
message 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.
Main causes
Low grade fuel being used
Overheating
KDPF broken internally
Excessive valve clearance
TROUBLES AND ACTIONS
Remedy
Replace with specified fuel.
Refer to "Radiator coolant level cau-
tion lamp lights up" above.
Replace KDPF. (*)
Adjust valve clearance. (*)
3-267
Advertisement
Table of Contents
