Monaco Cayman 2006, Manual

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252 • Section 10 — Chassis Information Cayman 2006
Adding Fluid:
When the leveling system makes unusual noise during jack operation, it may indicate a low fl uid level. If the
system alarm sounds when driving around corners or over bumpy roads, this usually indicates low fl uid level.
1. Chock a wheel fore and aft for safety.
2. Ensure all jacks are retracted.
3. Unscrew the reservoir cap from the top of
the pump. Slowly fi ll the reservoir with
Dexron III
®
automatic transmission fl uid
until ¼" from the fi ll plug.
4. Replace the reservoir cap. The reservoir is
now at the proper level.
ENGINE GENERAL INFORMATION
The diesel engine operates differently from the conventional gasoline engine. Gasoline engines control engine
speed using a butterfl y throttle plate controlling air/fuel mixture inlet fl ow. As the throttle plate opens, vacuum
created by the piston velocity draws the metered fuel/air charge into the combustion chamber, then ignites from
a controlled electric ignition source. Closing the throttle plate limits the fuel/air supply, slowing engine speed,
increasing intake manifold vacuum.
The diesel engine in the motorhome controls engine speed by varying fuel supply only. No throttle plates are
used. An exhaust driven turbine system (turbocharger) compresses the fresh air supply into the engine. The fuel
is injected under pressure into the combustion chamber. Ignition of fuel/air charge occurs from heat generated by
rapid high compression. The turbo boost gauge registers amount of intake manifold pressure measured in lbs./in².
Therefore, no intake manifold vacuum exists.
Diesel engine RPM (revolutions per minute) operating speeds are generally much lower than that of the
gasoline engine. Peak torque and horsepower output values occur at much lower engine speeds. Idle speeds
between the two engine types are similar, however maximum engine speeds are quite different. The gasoline
engine generally is not regulated to a maximum engine speed. The maximum engine speed on a diesel engine is
controlled by an engine speed governor set by the engine manufacturer.
WARNING:
Do not operate a diesel engine where there are or can be combustible vapors. Vapors can
be drawn through the air intake system and cause engine acceleration and over-speeding,
resulting in fire, explosion and extensive property damage. Numerous safety devices are
available, such as air intake shutoff devices, to minimize risk of an engine over-speeding
where an engine (due to its application) might operate in a combustible environment, such
as fuel spills or gas leaks.
NOTE:
The engine dataplate, located on the curbside front of the engine block, shows specific facts
about the Cummins engine.
INFORMATION:
The equipment owner and operator is responsible for safe operation of engine. Consult your
engine manufacturers owners manual or authorized repair location for more information.
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