Owner`s manual

CHASSIS INFORMATION — 10
204
2008 LAPALMA XL
After leaving the turbocharger, intake air
is compressed and heated to approximately
300º to 375º F., depending on the engine load
and throttle position. Before air enters the
intake manifold, the CAC cools the intake
air temperature to the engine manufacturer
specications. Lowered intake air temperatures
reduce exhaust emissions, improve fuel
economy and increase horsepower. The CAC
will continually expand and contract up to ¼” as
throttle increases and decreases.
Cleaning and Maintenance:
Inspect the charge air cooler every
week and remove dirt and debris that
may block the ns. If the motorhome
develops an oil leak, there is a possibility
that the oil will coat the ns of the CAC.
Dust will adhere to the oil lm, clog the
ns and reduce cooling efciency. When
the oil leak is repaired, the CAC must be
thoroughly cleaned.
During each oil change inspect the
engine side of the radiator/CAC
assembly for foreign objects that may
cause restriction.
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Spraying degreaser on the charge air
cooler, as well as using a steam cleaner,
will not damage the CAC. However,
pressure washer and steam cleaner
nozzles placed too close to the CAC
can bend the ns. The recommended
cleaning procedure for the CAC and the
radiator is to use a bucket of mild soap
and water. Carefully wash with a bristle
brush then rinse using a garden hose,
with minimum water pressure, standing
back a distance to avoid bending the ns.
When performing maintenance, it is also
necessary to inspect other components of
the cooling system. The charge air cooler
and radiator also requires an inspection
for cracks, broken welds, secure
mounting, and general cleanliness.
Every 12 months:
Inspect all hoses, clamps, and ttings for
leaks due to cracking, softness, and loose
clamps/ttings. Look for signs of uid leaks,
damaged end ttings, ballooning, chafed,
kinked, or crushed hoses, and loose clamps
and ttings. Correct any deciencies found.
Air Intake & Charge Air System
The air intake and charge air system
supply the engine with clean air for proper
combustion and performance. Air entering
the system is cleaned through a replaceable
lter element and monitored with an air lter
restriction indicator.
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The airow through the air lter is passed
through the engine turbocharger, which
pressurizes and heats the air. The heated
pressurized air then passes through the charge
air cooler, where the air is cooled before entering
the engine intake manifold.
The air entering the engine must be clean
as possible, as contaminants can cause major
engine damage.
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.
090452
Back of radiator shown.
DRAIN
PLUG