Chassis Information --- Section 10
The Executive 2005
483
Engine Coolant Reservoir (Cummins):
The engine coolant reservoir is connected to the radiator by a
hose. When the motorhome is driven, coolant heats and expands.
A portion of fluid displaced by expansion flows from the radiator
into the reservoir tank. When the engine is stopped, the coolant
cools and contracts. Coolant is drawn back in the radiator by a
vacuum. Thus, the radiator is kept filled with coolant to the
desired level at all times resulting in increased cooling efficiency.
The coolant level should be at, or slightly above, the appropri-
ate mark on the reservoir tank when the system is cold.
CAUTION:
To avoid scalding hot steam or coolant from being
released from the engine cooling system, never
remove the reservoir cap while the engine is run-
ning or hot. Failure to follow this warning may result
in damage to the engine cooling system and possibly
cause severe personal injury.
• Check the coolant level daily or when refueling.
• If the coolant is below the MIN mark, the low coolant alarm
will sound and the low coolant light will appear on the dash.
• The coolant level remains between the MAX and MIN level
in the reservoir.
INSPECTION:
Stop the motorhome and inspect the coolant level
before continued operation.
INFORMATION:
Refer to the Engine Manufacturer Owner’s
Manual for details on engine coolant maintenance.
030823
Cummins ISM Engine Coolant Reservoir
090447
Cummins ISX Engine Coolant Reservoir
Site glass for
coolant inspection
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