Komatsu HD325-8, Operation & Maintenance Manual

Page: 87 / 464

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.
DEF SYSTEM CAUTION LAMP
DEF system caution lamp alerts when abnormality in the sys-
tem are detected.
Whenever the caution lamp lights up in yellow or in red, take
necessary actions by instructions.
Fault conditions that result in activation of the Inducement strat-
egy for engine derates to prompt to maintain or repair the emis-
sion control system.
Lighting in red
With Action level “L04”, Inducement status is “Severe Induce-
ment”. Engine power is under heavy deration.
With Action level “L03”, Inducement status is “Low level Inducement”. Engine power is under deration.
Lighting in yellow
With Action level “L01”, Inducement status is “Warning” or “Continuous Warning”.
When “Continuous Warning”, If no maintenance, advancing to the next Inducement status. Engine power will be
derated.
DEF SYSTEM HIGH TEMPERATURE STOP CAUTION LAMP
DEF system high temperature stop caution lamp alerts when
the times of engine is shut down under the condition of high de-
gree temperature of DEF system exceeds the defined number
of times.
Whenever the caution lamp lights up in yellow, it is necessary
to ask your Komatsu distributor to go off this caution lamp.
When stopping the engine, stop it after running it at low idle for
approximately 5 minutes.
When stopping the engine during aftertreatment devices regen-
eration, stop the regeneration first, then stop the engine after
running it at low idle for approximately 5 minutes.
OPERATION EXPLANATION OF COMPONENTS
3-27