Komatsu PC1250-11 Original Instructions Manual page 90

EXPLANATION OF COMPONENTS
KDPF SYSTEM CAUTION LAMP
The KDPF system caution lamp warns about abnormality in the
KDPF system.
When action level "L04" is displayed
The caution lamp lights up in red and the alarm buzzer sounds
continuously.
Stop the machine immediately and ask your Komatsu distribu-
tor for inspection and maintenance.
When action level "L03" is displayed
The caution lamp lights up in red and the alarm buzzer sounds
intermittently.
Stop the operation and move the machine to a safe place, then ask your Komatsu distributor for inspection and
maintenance.
When action level "L01" is displayed
The caution lamp lights up in yellow.
Some functions may be restricted for use, but the machine can operate.
When you finish the operation, always perform the inspection and maintenance.
Ask your Komatsu distributor for the inspection and maintenance as needed.
KDPF SOOT ACCUMULATION CAUTION LAMP
The KDPF soot accumulation caution lamp warns that soot is
accumulated in KDPF or the filtering function of KDPF has low-
ered abnormally.
To cancel the alarm, perform the manual stationary regenera-
tion of KDPF.
When abnormal
The caution lamp lights up in red and indicates action level
"L03".
The alarm buzzer sounds intermittently.
Large accumulation of soot in KDPF or a system failure such
as lowering of the filtering function of KDPF occurrs.
Urgent remedy is required.
Move the machine to a safe place immediately and perform the manual stationary regeneration.
The manual stationary regeneration may start automatically to protect KDPF system.
When soot is accumulated
The caution lamp lights up in yellow and indicates action level "L01".
Much soot is accumulated in KDPF, however, the operation can be performed.
After the operation is finished, move the machine to a safe place and perform manual stationary regeneration.
ENGINE SYSTEM CAUTION LAMP
If the operation is continued while the red caution lamp is lit, accumulation and combustion of the soot
in KDPF are accelerated, and consequently the temperature of KDPF and exhaust gas can increase
high. Stop the engine immediately.
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CAUTION
OPERATION