Navistar WorkStar Series, Руководство оператора

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Operation
Cold Weather Starting
For vehicles frequently operating in cold climates an optional
engine block heater is available. The block heater utilizes an
external power source to keep the engine coolant warm and a
120-volt socket for connecting to the external power source. The
120-volt socket is mounted below the driver’s side door.
Cold Weather Operation
In order to operate the engine in temperatures of 32°F (0°C) or
lower, observe the following instructions:
• Make certain that batteries are of sufficient size and in fully
charged condition. Check that all other electrical equipment
is in optimum condition.
• Use permanent type engine anti-freeze solution to protect
against damage by freezing.
• At the end of each daily operation, drain water from
fuel-water separator, if equipped.
• Fill fuel tank at end of daily operation to prevent
condensation in fuel tank.
• Be sure to use proper cold weather lubricating oil, and be
sure crankcase is at proper level.
• At temperatures of -4°F (-20°C) and below, it is
recommended that you use a crankcase mounted coolant
heater to improve cold starting.
• If operating in arctic temperatures of -20°F (-29°C) or lower,
consult your International dealer for information about
special cold weather equipment and precautions.
Winter/Engine Intake Operation
When the WINTER position is selected, the optional
yellow Snow Valve warning indicator in the instrument
panel gauge cluster turns on. When the intake valve
is fully opened, the yellow warning indicator turns off
and the green indicator, on the switch, turns on. When
the switch is moved from the WINTER position to the
ENGINE INTAKE position, the green indicator on the switch
goes out and the yellow Snow Valve warning indicator in the
instrument panel gauge cluster turns on as soon as the valve
begins to close. When the intake valve is fully closed, the yellow
warning indicator turns off.
Engine Idling
CAUTION
Because diesel engines are highly efficient, they
use very little fuel while idling. As a result, idling
in cold weather will not heat the engine to its
normal operating temperature. This in turn can
cause a build-up of heavy deposits of carbon
and rust on valve stems causing them to stick.
Sticking valves can cause significant valve train
damage.
The colder the ambient temperature,
the more likely this will occur.
The following cold weather idling guidelines must be followed:
• Avoid extended idling (beyond 10 minutes) whenever
possible.
• Use a minimum 45 Cetane diesel fuel or utilize Cetane Index
improvers from a reputable manufacturer.
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