Komatsu H75051 Operation & Maintenance Manual page 90

EXPLANATION OF COMPONENTS OPERATION
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.
At the same time, the centralized warning lamp lights up 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.
At the same time, the centralized warning lamp lights up and alarm buzzer sounds intermittently.
Stop the operation, move the machine to a safe place, stop the engine, then ask your Komatsu distributor for
inspection and maintenance.
When action level "L01" is displayed
The caution lamp lights up in yellow.
When you finish the operation, always perform the inspection and maintenance.
Ask your Komatsu distributor for the inspection and maintenance as needed.
REMARK
If you ignore the caution lamp and continue the work, the peripheral temperature of the aftertreatment devices
may increase abnormally.
For the aftertreatment devices, see "HANDLE Komatsu Diesel Particulate Filter (KDPF) (3-124)".
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.
When action level "L03" is displayed
The caution lamp lights up in red if much soot is accumulated
in KDPF or a system trouble such as lowering of the filtering
function of KDPF occurs.
At the same time, the centralized warning lamp lights up and
alarm buzzer sounds intermittently.
Stop the operation, move the machine to a safe place, and per-
form the manual stationary regeneration.
The manual stationary regeneration may start automatically to protect the KDPF system.
When action level "L01" is displayed
The caution lamp lights up in yellow if much soot is accumulated in KDPF.
After the operation is finished, move the machine to a safe place and perform manual stationary regeneration.
REMARK
For details of the manual stationary regeneration, see "HANDLE Komatsu Diesel Particulate Filter (KDPF)
(3-124)".
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