238
2009
K
night
Chassis Information - 1
0
The air entering the engine must be as clean
as possible, as contaminated air can cause
destruction of major engine components. Even
small amounts of contaminants can do major
damage to an engine.
INSPECT
The air intake system on a weekly
basis, looking for damage, clogged fins,
loose connections, and wear to the air
ducting, clamps, and filter housing.
Check to ensure that the ducting
is not rubbing or wearing on other
components and that all components
are securely in place. Have any
problems investigated and corrected
as soon as possible in order to prevent
engine damage.
Changing Air Filter
To replace air
cleaner, remove
screws and cover
from air cleaner body.
Remove air cleaner
cartridge and discard. Install new air
cleaner cartridge and secure with cover and
screws.
Air Filter Number: Donaldson P533930
NOTE
Filter is accurate at time of printing.
Confirm part number before ordering
or obtaining replacement.
WARNING
DO NOT start the engine with the air
cleaner removed and DO NOT remove
it while the engine is running.
Air Filter Restriction Indicator
The air filter restriction indicator improves
engine efficiency by telling the amount of
restriction present in the air intake system, thus
indicating when the air filter needs changing.
A visual inspection of the air filter is not
adequate and should never dictate service life.
What Indicator Does:
Continuously shows how much life is
left in engine air filter (window).
Continuously reads air flow restrictions
in increments (scale).
When To Monitor:
Inspect indicator before each trip.
When To Change Air Filter:
When the yellow indicator approaches
the red (top) area it is signaling that
the air filter is becoming excessively
dirty. Service the air filter when the red
indicator stays in the window with the
engine off.
How To Reset Indicator:
Push button on top to reset.
NOTE
If the air filter restriction indicator
should become faulty, replace entire
unit.
DIESEL pARTIcULATE FILTER
The exhaust system is equipped with a DPF
(Diesel Particulate Filter) to lower particulate
emissions. The DPF traps particulate matter.
Naturally occurring exhaust heat oxidizes
built up particulate and regenerates the
filter. This is called passive regeneration.
If passive regeneration is not sufficient, an
active regeneration cycle will automatically
initiate at speeds greater than 20 mph. Both
passive and active regeneration cycles initiate
automatically.
Located in rear roadside compartment
090317
090289g
Located in rear engine compartment
090388d mod crop
090504
Summary of Contents for 2009 Knight
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Page 46: ...42 2009 knight Driving Safety 2 Weighing Procedure Worksheet Example Worksheet 020255b conv...
Page 47: ...43 2009 knight Driving Safety 2 Weight Record Sheet Actual Worksheet 020255b 020263...
Page 52: ...48 2009 knight Driving Safety 2 Notes...
Page 152: ...148 2009 knight Water Systems 6 Notes...
Page 182: ...178 2009 knight Electrical Systems House 8 Notes...
Page 201: ...197 2009 knight Electrical Systems Chassis 9 engine no start flow chart...
Page 202: ...198 2009 knight Electrical Systems Chassis 9 Notes...
Page 251: ...247 2009 knight Chassis Information 10...
Page 260: ...256 2009 knight Index Notes...