General guidelines for shutting the engine down are fairly simplistic.
Allow the engine to idle three to five minutes after a full load operation. This
allows adequate cool down of pistons, cylinders, bearings and turbocharger
components. Under normal driving conditions, exiting the highway is gener-
ally lighter engine operation and the need for the three to five minutes is not
necessary.
When the motorhome has been sitting for extended periods, 30 days or
more, verify all the fluid levels are correct. Follow the normal starting
procedures. If the oil pressure gauge does not register within 15 seconds,
shut off the engine immediately to avoid damage. Consult the Cummins
Operation & Maintenance Manual for guidelines on troubleshooting low oil
pressure, or contact a qualified service technician. Allow the engine to idle
for three to five minutes before operating under a load.
A fully formulated antifreeze or coolant containing a precharge
of Supplemental Coolant Additives (SCA) is recommended. The
use of either will significantly simplify coolant system maintenance.
The difference between a fully formatted antifreeze and a fully
formatted coolant is the percentage of water. Both contain balance
amounts of antifreeze, SCA, buffering compounds and a percentage
of good clean quality water. The antifreeze of coolant must meet
ethylene glycol or propylene glycol recommendations. A good
clean quality water in a 50/50 ratio (40 to 60% working range)
mixed with fully formatted antifreeze will provide protection from -
34º F to 228º F. The 50/50 mix ratio must be premixed prior to
being put in the system. Placing antifreeze and water in the
cooling system is not recommended. Consult the Cummins
Operation & Maintenance Manual for more details.
NOTE: An over concentration of antifreeze, or the use of high
silicate antifreeze, can cause damage to the coolant system
and engine. Antifreeze is essential in every climate.
WARNING: The ISC engine is equipped with an intake air
heater. Use of ether starting fluids can cause an explosion!
NOTE: Any item on the back of the motorhome which
blocks the grill opening or changes the air flow may cause
an overheating condition under some circumstances.
The coolant fluid freeze point should be checked with every oil change
interval at 15,000 miles, 500 hours or six months, whichever comes first.
Also change the coolant filter at the same interval unless SCA concentration
is over three units. The coolant should be drained and flushed at 6,000 hours
or two years of service, whichever comes first.
Chassis Information
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
D I P L O M A T
1 0 • 2 8 7
ENGINE
SHUTDOWN
-Extended
ENGINE
SHUTDOWN
COOLANT
OM080
08HAR
Содержание 2002 Diplomat
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Страница 313: ...GLOSSARY OF TERMS 315 INDEX 319 SURVEY 323...
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