Monaco 2009 Knight, Руководство пользователя

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22
2009
K
night
Chassis Information - 1
0
ENgINE - gENERAL INFORMATION
The diesel engine operates differently from
the conventional gasoline engine. Gasoline
engines control engine speed using a butterfly
throttle plate controlling air/fuel mixture inlet
flow. 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.
INFORMATION
The equipment owner and operator
is responsible for safe operation of
engine. Consult the engine OEM
manual or authorized repair location
for more information.
STARTINg pROcEDURE
Normal Starting
The engine is equipped with an intake
manifold grid heater. The grid heater helps
engine starting in cold weather. Intake
manifold air temperature is monitored by the
Electronic Control Module on the engine. If
intake manifold temperature is below specified
level (approximately 40º F.), the manifold grid
heater will activate. Grid heater activation is
indicated by the WAIT TO START indicator
lamp.
WARNING
Use of ether starting fluids may
cause an explosion upon grid heater
activation.
To Start the Engine:
With the throttle
in idle position, turn
ignition to ON. Allow
the WAIT TO START
lamp to extinguish.
Turn key to the start position. When the
engine starts the grid heater will again energize
for a time period determined by the Electronic
Control Module. Allow the engine to idle with
no load for three to five minutes. The engine
coolant temperature should be up to normal
operating range (140º F/60 º C to 212º F/100º
C) before operating the engine under full
throttle.
NOTE
DO NOT idle the engine for long
periods of time. Consistent periods of
long idle wastes fuel and may cause
engine damage.
Cold Weather
In sub-freezing or extreme cold, engine oil
becomes thick and battery output is reduced.
Thick oil, combined with less amperage
available from the battery, increases difficulty
in starting the engine.
Depending on ambient temperature it may
be necessary to pre-heat the engine. Located
in the coolant passage in the engine is a
heating unit that operates from 120 Volt AC.
If it is necessary to pre-heat the engine due
to ambient temperature, it is recommended
to activate the block heater the night before,
allowing several hours for the block heater to
warm the engine.
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