TROUBLES AND ACTIONS OPERATION
3-250
Electronic Control System 3
If an error code is displayed on the machine monitor display
(normally this displays the time), follow the self-diagnostic rem-
edy table below.
Machine Monitoring System
(*): For the replacement of the fuel main filter element, see “REPLACE FUEL MAIN FILTER CARTRIDGE (4-85)“
and for the replacement of the fuel pre-filter element, see “REPLACE FUEL PRE-FILTER CARTRIDGE (4-81)“
respectively.
Monitor
display
Failure mode Remedy
E03 Swing brake system error Carry out inspection immediately.
E07
Error in pump controlling system
(Emergency safeguard system in action)
An abnormality has occurred in the electronic pump con-
trol system, and the emergency safeguard system is in
action. Part of the machine's functions is lost. The ordi-
nary work is still possible with the machine, but ask your
distributor for an inspection.
E10
Abnormality in electronic governor system
(engine stopped)
Carry out inspection immediately.
E11
Abnormality in electronic governor system
(abnormality in engine protection output)
It is possible to carry out normal working operations, but
have inspection carried out immediately.
E14
Abnormality in throttle
(abnormality in fuel control dial)
Move machine to a safe posture, and carry out inspection
immediately.
E15 Abnormality in electronic governor system
If a display of “CA2249“ or “CA559“ appears in the user
code screen and yet the machine has not run out of fuel,
replace both fuel main filter element and fuel pre-filter
element immediately. (*)
If the display of “CA2249“ or “CA559“ still does not disap-
pear after the replacement, ask your Komatsu distributor
for an inspection immediately, even though normal oper-
ation of the machine is still possible.
On the other hand, if any other code than “CA2249“ and
“CA559“ appears in the user code screen, again ask your
Komatsu distributor for an inspection immediately, even
though normal operation of the machine is still possible.
E0E Abnormality in network
If the engine can be operated, set the machine to a safe
posture, then have inspection carried out immediately.
If the engine is operated and stalls, turn the emergency
pump drive switch is up set the machine to a safe pos-
ture, then have inspection carried out immediately.
Even if the engine is stopped, have inspection carried out
immediately.
If no error code is displayed but work equipment or
swing cannot be operated
Carry out inspection immediately.
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