Def Clogging Sequence - Instrument Cluster Telltale Light - PREVOST H3-45 VIP Owner's Manual

5-4 Other Features
DEF CLOGGING SEQUENCE – INSTRUMENT CLUSTER TELLTALE LIGHT
LEVEL 1
LEVEL 2
flashing
LEVEL 3
flashing
+
LEVEL 4
flashing
+
+
REGENERATION NEEDED
solid
Diesel particulate filter is becoming full
The DPF Regeneration telltale light illuminates to notify the driver that a
stationary regeneration (parked) will be required soon. When this lamp is
lit, initiate stationary regeneration process at an appropriate time of day.
THERE IS NO URGENCY AT THIS LEVEL.
REGENERATION REQUIRED
Diesel particulate filter full
If no DPF regeneration occurs after the initial DPF Regeneration telltale
light illumination, the lamp will begin blinking and a stationary regeneration
should be initiated as soon as possible in order to prevent from entering
into Level 3.
ATD SERVICE REQUIRED
ENGINE DERATE ACTIVE
Diesel particulate filter overfull
If the flashing DPF Regeneration telltale light is still ignored, the CHECK
telltale light will illuminate. In that situation, engine performance is limited.
Perform a parked regeneration IMMEDIATELY to avoid further derate and
prevent from entering into Level 4.
ATD SERVICE REQUIRED
ENGINE SHUTDOWN ACTIVE
A serious engine problem has occurred. The DPF may be over its
maximum capacity.
If a stationary regeneration is still not initiated, a standard Engine
Protection Shutdown sequence will occur. All of the following dashboard
lamps will be present:
Blinking DPF Regeneration telltale light;
l
Solid CHECK telltale light;
l
Solid STOP telltale light.
l
Once engine derate and/or shutdown sequence is completed, a stationary
regeneration must occur to continue vehicle operation. If the driver
continues to operate the vehicle without regeneration, additional measures
will be taken to protect the engine and ATD from damage, up to and
including engine shutdown. Parked regeneration might no longer be
possible.
If engine protection has been initiated and forces the engine to
shutdown, you can immediately RE-START the engine and perform
the necessary steps in order to initiate a stationary regeneration.
PA-1619 Owner's Manual H3-45 VIP
Find and solve the cause of the shutdown