Komatsu D155AX-8E0, Operation & Maintenance Manual

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List of action level displays and required actions
Degree
of ur-
gency
Action lev-
el
Buzzer Caution lamp Required action
High
↑
│
│
│
│
│
↓
Low
L04
Sounds contin-
uously
Lights up in
red
Stop the machine immediately and have the inspection and
maintenance performed.
For the inspection and maintenance, ask your Komatsu dis-
tributor.
L03
Sounds inter-
mittently
Lights up in
red
Stop the operation, move the machine to a safe place, and
have the inspection and maintenance performed.
For the inspection and maintenance, ask your Komatsu dis-
tributor.
L02
Sounds inter-
mittently
Lights up in
red
Stop the operation, and run the engine at medium speed with
no load or stop it.
If the condition is not improved, ask your Komatsu distributor
for inspection and maintenance.
L01
Does not
sound
Lights up in
yellow
Some functions may be restricted for use, but the machine
can operate. When you finish the operation, always have the
inspection and maintenance performed. Ask your Komatsu
distributor for inspection and maintenance as needed.
CAUTION LAMP LIST
NOTICE
• These caution lamps do not guarantee the condition of the machine.
Do not simply rely on the caution lamp when performing checks before starting (start-up inspec-
tion). Always get off the machine and check each item directly.
• When the caution lamp is displayed in red, if no action is taken, the machine can be seriously affect-
ed.
Take the action immediately.
• The engine output or engine speed is limited and the machine operation speed may become slow,
depending on the contents of the warning.
• When the engine output or engine speed is limited by the warning of action level “L03” or higher,
the limit may not be canceled even if the warning is canceled.
In this case, stop the machine and lower the engine speed to low idle with the fuel control dial or the
decelerator pedal. The engine output or engine speed limitation is reset.
Caution lamps and display colors
Symbol Type of caution lamp
Display color/Machine condition (Action level)
Red Yellow Blue White
Engine coolant temperature cau-
tion lamp
High temper-
ature
(L02)
- Normal -
Power train oil temperature cau-
tion lamp
High temper-
ature
(L02)
- Normal -
Hydraulic oil temperature caution
lamp
High temper-
ature
(L02)
- Normal -
OPERATION EXPLANATION OF COMPONENTS
3-15