Komatsu PC138US-11 Operation & Maintenance Manual page 316

TROUBLES AND ACTIONS
• When "DXA8KA" or "DXA8KB" or "DXA9KA" or "DXA9KB"
is on the "Current Abnormality" screen, it enables opera-
tions temporarily by turning the pump secondary drive
switch to upper (emergency) position. For details of the
switch, see "PUMP SECONDARY DRIVE SWITCH
(3-89)".
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" is displayed on "Current Abnormality" screen, re-
place both fuel main filter and fuel prefilter immediately.
For the method of replacement, see "METHOD FOR REPLACING FUEL PREFILTER CARTRIDGE
(4-50)", "METHOD FOR REPLACING FUEL MAIN FILTER CARTRIDGE (4-60)".
If "CA2249" or "CA559" is not cleared even after the replacement, ask your Komatsu distributor for inspec-
tion 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.
3-246
WENAM00111
OPERATION