Komatsu PC138US-11 Operation & Maintenance Manual page 90

EXPLANATION OF COMPONENTS
ACTION LEVEL DISPLAY
Action level display indicates the degree of urgency of the ab-
normality currently generated on the machine by "L01" to "L04".
The larger the number in the table is, the more serious effects
the abnormality may have on the machine if it is left with no ac-
tion.
If the machine monitor indicates an action level, check the
message displayed on the monitor.
When switch F5 is pressed on the standard screen while the
action level is displayed, the list of the current abnormality are
displayed.
For the display method of failures, see "CURRENT ABNOR-
MALITY DISPLAY SWITCH (3-23)".
Take appropriate actions by following the message displayed
on the monitor.
List of action levels and required actions
Degree Action lev- Buzzer
of ur- el
gency
L04
Sounds contin-
High
uously
↑
Sounds inter-
L03
│
mittently
│
L02 Sounds inter-
│
mittently
│
│
│
L01 Does not
sound
│
│
↓
Low
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.
3-20
Color of cau- Required action
tion lamp
Lights up in Stop the machine immediately and ask your Komatsu distrib-
red utor for inspection and maintenance.
Lights up in Stop the work, move the machine to a safe place, and then
red ask your Komatsu distributor for inspection and maintenance.
Lights up in Stop the work and run the engine at medium speed with no
red load or stop it.
If the condition is not improved, ask your Komatsu distributor
for inspection and maintenance.
Lights up in Some functions may be restricted from use, but the machine
yellow can operate.
When you finish the operation, always have the inspection
and maintenance performed.
Ask your Komatsu distributor for the inspection and mainte-
nance as needed.
WENAM00111
OPERATION