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7-23
Wait until the temperature is below 50 ˚C
Wait until the temperature is below 50 ˚C
(122 ˚F) before removing the coolant system
(122 ˚F) before removing the coolant system
pressure cap.
pressure cap.
Failure to do so can cause personal injury
Failure to do so can cause personal injury
from heated coolant spray.
from heated coolant spray.
Drain the cooling system by opening the drain
Drain the cooling system by opening the drain
valve on the radiator and opening the drain
valve on the radiator and opening the drain
valve on the bottom of the engine oil cooler
valve on the bottom of the engine oil cooler
housing.
housing.
A drain pan with a capacity of 45 liters (11.9
A drain pan with a capacity of 45 liters (11.9
U.S. gallons) will be adequate.
U.S. gallons) will be adequate.
Flushing of cooling system
Flushing of cooling system
Fill the system with a mixture of sodium
carbonate and water (or a commercially
available equivalent).
Use 0.5 kg (1.0 pound) of sodium carbonate
Use 0.5 kg (1.0 pound) of sodium carbonate
for every 23 liters (6.0 U.S. gallons) of water.
for every 23 liters (6.0 U.S. gallons) of water.
Do not install the surge tank cap. The
Do not install the surge tank cap. The
engine is to be operated without the cap for
engine is to be operated without the cap for
this process.
this process.
During filling, air must be vented from the
During filling, air must be vented from the
engine coolant passages.
engine coolant passages.
The system must be filled slowly to prevent
The system must be filled slowly to prevent
air locks or serious engine damage can
air locks or serious engine damage can
result. Wait 2 to 3 minutes to allow air to be
result. Wait 2 to 3 minutes to allow air to be
vented, then add mixture to bring the level to
vented, then add mixture to bring the level to
the top.
the top.
Operate the engine for 5 minutes with the
coolant temperature above 80 ˚C (176 ˚F).
Shut the engine off, and drain the cooling
system.
(2)
(2)
①
※
※
②
※
2609A6MA16
OK
110D9MI16
110D9MI07
OFF
110D9MI10