Komatsu PW98MR-10 Operation & Maintenance Manual page 304

TROUBLES AND ACTIONS
Problem
Combustion makes breathing sound
from time to time.
Abnormal noise is generated.
(combustion or mechanical)
Engine stalls during 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 switch F5 to dis-
play "Current Abnormality" and check the details and remedy.
For the contents of the action level display and caution lamp,
see "ACTION LEVEL DISPLAY (3-17)".
• When "DXA8KA", "DXA8KB", "DXA9KA", or DXA9KB is on
"Current Abnormality" screen, you can make it possible to
perform operations temporarily by turning the pump secon-
dary drive switch to upper (emergency) position. For de-
tails of the switch, see "PUMP SECONDARY DRIVE
SWITCH (3-98)".
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 "Current Abnormality" screen, replace
both fuel main filter and fuel prefilter immediately. For de-
tails of replacement, see "METHOD FOR REPLACING FUEL PREFILTER CARTRIDGE (4-49)" and
"METHOD FOR REPLACING FUEL MAIN FILTER CARTRIDGE (4-65)".
If "CA2249" or "CA559" does not disappear even after the replacement, ask your Komatsu distributor for
inspection 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 "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.
3-236
Main causes
Defective nozzle
Low grade fuel being used
Overheating
Damage inside muffler
Excessive valve clearance
Clogging of pre-filter or main filter
Defective engine and fuel circuit
WENAM00061
Remedy
Replace nozzle. (*)
Replace with specified fuel.
See the above section on "Indicator
of engine coolant temperature gauge
is in red range".
Replace muffler. (*)
Adjust valve clearance. (*)
Replace filter cartridge.
Check, repair. (*)
OPERATION
RKA48910