IC Bus CE Series 2020, Руководство по эксплуатации и обслуживанию

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Operation
• At temperatures of 4°F (-20°C) or below, it is
recommended that you use a crankcase-mounted
coolant heater to improve cold engine starting.
• Consult your IC Bus
®
dealer for information about special
cold weather equipment and precautions if operating in
arctic temperatures of -20°F (-29°C) or lower.
ENGINE IDLING
CAUTION
To prevent property damage, do not leave diesel
engines idling for an extended amount of time in
cold weather. 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 buildup 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.
To maximize engine and Diesel Particulate
Filter (DPF) life, see Exhaust Diesel Particulate Filter
Regeneration in this section for more information.
• Use a minimum 45 Cetane diesel fuel or utilize Cetane
Index improvers from a reputable manufacturer.
• Maintain a minimum of 1,250 rpm idle by use of the hand
throttle. Always ensure that parking brake is applied and
transmission is in Park (P) before applying hand throttle.
• Maintain engine cooling system.
• Do not shut engine down after extended idling period.
Drive the vehicle under load for several miles at normal
operating temperatures to burn off any accumulated
carbon and varnish.
• Consider use of engine block heaters, approved winter
fronts and / or radiator shutters where conditions warrant.
WINTER FRONTS
Do not use winter fronts or other air-restrictive devices mounted
in front of the radiator with a permanent opening with less than
120 in
2 (3 m 2 .) directly in line with the fan hub. Air flow restriction
can cause high exhaust temperatures, power loss, excessive fan
usage, and reduce fuel economy.
Hot Weather Operation
• Keep the engine cooling system filled with clean,
permanent coolant solution to protect against damage
from overheating.
• Keep external surface of the engine, radiator, charge air
cooler and accessories clean to avoid dirt build up.
• Fill fuel tank at end of daily operation to prevent
condensation in tank.
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