Komatsu HB365LC-3 Operation & Maintenance Manual page 347

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 the switch F5 to
display the Current Abnormality and check the details and rem-
edy.
For the contents of the action level display and caution lamp,
see "WARNING DISPLAY (3-15)".
• When "DXA8KA", "DXA8KB", "DXA9KA", or "DXA9KB" is
on the Current Abnormality screen, turning the pump sec-
ondary drive switch to upper (emergency) position enables
operations temporarily. For details of the switch, see
"PUMP SECONDARY DRIVE SWITCH (3-92)".
After that, immediately ask your Komatsu distributor for the
inspection and repair.
• Even though the machine has not run out of fuel, if
"CA2249" or "CA559" is displayed on the Current Abnor-
mality screen, replace both fuel main filter and fuel prefilter
immediately. For the method of replacement, see "METH-
OD FOR REPLACING FUEL PREFILTER CARTRIDGE (4-54)" and "METHOD FOR REPLACING FUEL
MAIN FILTER CARTRIDGE (4-68)".
If "CA2249" or "CA559" is not cleared even after the replacement, ask your Komatsu distributor for the in-
spection and repair immediately, even though the machine can perform normal operation.
Telephone number for the point of contact when an error occurs
When an error screen is displayed on the machine monitor,
press the switch F5 to display the Current Abnormality screen,
and the telephone number (3) for the point of contact is dis-
played 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. (*)
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