Lubrication Maintenance - Monaco 2009 Knight Owner's Manual

WARNING
Use Ultra Low Sulfur Diesel (ULSD)
only. Do not use Low Sulfur Diesel
(LSD) with a DPF equipped engine.
LSD will damage the DPF, which
may cause the Stop Engine light to
illuminate and cause the engine to
severely derate.
Passive Regeneration:
Passive regeneration uses heat from naturally
occurring exhaust gasses to oxidize built-up
particulate.
Active Regeneration:
An active regeneration cycle will be initiated
if exhaust temperatures are not high enough
to regenerate the filter. The motorhome must
be traveling in excess of 20 mph for an active
regeneration cycle to initiate.
During an active
regeneration cycle, diesel fuel
is introduced into the exhaust
system upstream of the DPF.
The fuel will ignite and super-
heat the DPF to oxidize
particulate matter. The HEST
(High Exhaust System Temperature) dash light
will illuminate when exhaust temperatures
reach 1450º F., indicating that an active
regeneration is underway and exhaust system
temperatures are elevated above normal levels.
These temperature levels may occur for up to
40 minutes. The HEST light will remain on
until the exhaust temperature cools to 650º F.,
which may not be until the engine is turned off
and the exhaust system cools before restarting.
The HEST light does not indicate a fault as
long as there are no other active warning
lights.
CAUTION
Use extreme caution if parking the
motorhome while the HEST light is
on. The exhaust system and exhaust
gas will be extremely hot to the point
of fire hazard. DO NOT park the
motorhome on or around anything
combustible.
NOTE
If the engine is turned off during an
active regeneration cycle, the cycle
will automatically begin again (if
necessary) when the motorhome is
operated at speeds above 20 mph.
DPF Dash Light:
A DPF (Diesel Particulate
Filter) indicator light on the
dash illuminates when an active
regeneration cycle is necessary
and has not been able to
initiate. Driving the motorhome
above speeds of 20 mph will
allow an active regeneration cycle to initiate.
The HEST light will turn on when exhaust
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temperatures reach 1450º F, indicating an
HEST Dash Light
active regeneration cycle is underway. Once
the DPF is clear of particulate matter the DPF
light will turn off.
DPF Light Warning System:
If the DPF remains clogged, there are four
stages of the DPF light warning system.
The HEST light may illuminate during this
sequence, which indicates that an active
regeneration cycle is underway. This should
successfully regenerate the filter. The only
indication that the DPF is clear and in good
working order is the DPF light turning back
off.
Stage One: The DPF light glows

steady. This means that an active
regeneration cycle is necessary but has
not been able to initiate.
Stage Two: The DPF light flashes. The

DPF filter is clogged to the point that
the engine will slightly derate (lose
power).
Stage Three: The DPF light flashes

and the Check engine light turns on.
The DPF is clogged to the point that
service is required immediately. The
engine will severely derate at this
point.
Stage Four: The DPF light and

Check Engine lights extinguish and
the Stop Engine light turns on. Turn
off the engine as soon as possible to
avoid severe engine and/or system
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component damage. DO NOT drive
DPF Dash Light
the motorhome in this condition. The
DPF will need to be removed for repair.

LUBRIcATION MAINTENANcE

Performing regular scheduled maintenance
ensures reliable operation and optimum
service life of the various chassis components.
Completed maintenance brings peace of
mind knowing the various components have
received proper service. Failure to follow
maintenance guidelines, or perform scheduled
maintenance, results in inefficient operation,
premature component wear or component
failure resulting in breakdown.
Maintenance schedules are usually
performed at certain mile or time intervals.
When performing high level procedures, lower
level service should also be performed.
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