Fan Pulley Bearing
Add Coolant Conditioner
At operating temperature, the engine coolant is hot
and under pressure.
Check the coolant level only when the engine is
stopped and the filler cap is cool enough to touch
with your hand.
Remove the filler cap slowly to relieve pressure.
Lubricate fan pulley bearing .
Steam can cause personal injury.
Cooling System Conditioner contains alkali. Avoid
contact with skin and eyes to prevent personal
All water is corrosive at engine operating temperature.
Use either Caterpillar Cooling System Conditioner, or
Coolant Conditioner Element to treat either plain water or
ethylene glycol antifreeze solution. Never use both the
cooling system conditioner and the coolant conditioner
element at the same time.
Do not use Caterpillar Cooling System Conditioner or
Coolant Conditioner Elements with Dowtherm 209 Full-
Fill coolant. Follow recommendations provided with
Dowtherm 209 Full-Fill coolant.
Add .5 liter (1 pint) of Caterpillar Cooling System
Conditioner for each 15 liters (4 U.S. gallons) of coolant
This will maintain the required 3% to 6%
concentration of conditioner.