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 NOTE: If cooling system conditioner has been added at
Every 250 Service Hours as recommended, the coolant
change period can be extended to 4000 Service Hours.
3.
Remove the block drain plugs. Allow coolant to
drain.
4.
Clean and install all drain plugs.
1.
Remove the filler cap slowly to relieve pressure.
5.
Fill the system with a solution of approved water,
antifreeze and 1 liter (1 quart) of Caterpillar Cooling
System Conditioner for each 30 liters (8 U.S. gallons) of
coolant added. See "Refill Capacities" for amount of
solution needed.
NOTE: The addition of .5 liter (1 pint) of conditioner per
15 liters (4 U.S. gal.) of water will give the system a 3%
to 6% concentration of conditioner.
Add solution slowly at 20 liters (5 U.S. gal.) or less per
minute to avoid air locks.
6.
Start the engine with the filler cap off. Operate
the engine until the thermostat opens and coolant level
stabilizes. Fill the cooling system to the bottom of fill
tube. Install the filler cap.
2.
Remove the drain plug on bottom of water pump
housing.
625
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